Bivalves like oysters and clams, have greatly enlarged gills that they use for both respiration and filter feeding.
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how does osteoporosis weaken bones? check all that apply.lowers bone masslowers bone densitycreates holes in bonescauses permanent painresults in a loss in heightresults in stooped postureoccurs in hip, spine, or wrist
The holes and voids in the honeycomb are significantly larger in osteoporotic bone than in healthy bone. Bones that are osteoporotic have abnormal tissue structures and have lost mass or density. Bones with less density are more fragile and prone to fracture.
Why does osteoporosis cause bone thinning?Your body may reabsorb calcium and phosphate from your bones as you age rather than keeping them there. The result is weaker bones. Osteoporosis is the name given to this process when it reaches a specific stage.
What erodes bones?Lower bone density, early bone loss, and fracture risk are all exacerbated by a low-calcium diet. Physical activity People who are physically inactive are more prone to acquire osteoporosis than people who are physically active.
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Answer:
lowers bone mass
lowers bone density
creates holes in bones
Explanation:
correct on edge 2023
List ways we can deal with invasive species?
( I know this is simple but like I'm too lazy to do it rn)
BioFlix Activity: Protein Synthesis -- Transcription During transcription, an RNA molecule (shown in red) is transcribed from DNA (shown in blue). Can you label the bases on the RNA transcript? To review the process of transcription, watch this BioFlix animation: Transcription. Transcription Drag the correct labels onto the nucleotides in the RNA transcript. Not all labels will be used.
The transcription is a process in which the RNA is formed from the DNA, and in the DNA, the non-coding strand is used as a template, and the RNA that is formed is a copy of the coding strand of the DNA.
What is the specialty of bacterial transcription?The specialty of bacterial transcription is that transcription and translation take place simultaneously as there is no nuclear membrane, so the ribosome can access the mRNA and start protein synthesis.
Hence, the transcription is a process in which the RNA is formed from the DNA, and in the DNA, the non-coding strand is used as a template, and the RNA that is formed is a copy of the coding strand of the DNA.
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What is the T method used for in microbiology?
T-Streaking the agar petri plate was separated into three portions, but every portion is streaked in this unique way of streaking.
A Petri plate is what?A small, transparent, rounded dish with a lid that is used in science tests, particularly for the growth of bacteria in a Petri plate. In the microbiology lab, agar plates—a thin layer of nutritional gel in a Petri dish—are used to cultivate bacteria and fungi.
What material are Petri dishes made of?A flat, wide dish made of plastic or glass with an appropriate lid is referred to as a petri dish. Different sorts of cells, notably viruses and molds, are cultured in a petri dish. It frequently includes a nutritious substrate for the cells to thrive on.
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If pure breeding parents for one trait were crossed (yellow seed, dominant vs. green seed, recessive, the f1 generation will produce?
Yellow-seed alleles are dominant, while green-seed alleles are recessive. When true-breeding plants with yellow seeds and green seeds were cross-fertilized, all of the F1 hybrid offspring had yellow seeds.
Inherited traits are genetically acquired traits. These characteristics are passed down from parents or grandparents to their children. DNA is in charge of transmitting genetic information from one generation to the next.
Inherited traits are things that an animal inherits from birth. Both of their parents pass on these characteristics to them, and they end up being a hybrid of their parents. Hair color, eye color, and fur patterns are all inherited characteristics.
Acquired traits, on the other hand, are characteristics that an individual acquires over the course of his life. It could be the result of his own actions or an external influence. Unlike inherited traits, acquired traits cannot be passed down genetically to the next generation. For example, the ability to dance or cook well.
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The rapid rise and fall in force produced by a muscle fiber after a single action potential is a(n) ____.
twitch.
muscle action potential.
tetanus.
unfused tetanus.
end plate potential.
The rapid rise and fall with a force produced by a muscle fiber after a single action potential is known as a twitch.
Muscles are the loose tissues masses present inside the body of an organisms that help in the movement of various body parts. There are three major classes of muscles in the human body, namely: skeletal muscles, smooth muscles and cardiac muscles.
Twitch is the sudden instantaneous muscle contraction. It is also called muscle fasciculation. This is an involuntary action, i.e. one cannot cause this contraction on their own. The reason for such twitches can below magnesium levels, muscle fatigue or some medication side effects.
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Are snails and clams the same?
Clams and snails are members of the phylum Mollusca.
The Mollusca members have a radula, a mantle, and a hard shell. They are contributors of mother of pearl, abalone shells, and lustrous pearls that resemble items of jewelry. A tentacled head, a muscular foot, a feeding apparatus called the radula, and a fully developed digestive tract are gross features of the molluscan body. The mantle of molluscan periodically secretes an exterior shell. The mantle forms a hard external shell that provides protection from various prey and pressure. A marine mollusca that lives in freshwater and burrows, the clam feeds on mud or sand. An invertebrate known as a mollusca has a soft, unsegmented body that is typically covered by a shell.
Hence, animals belonging to the same phylum show similar characteristics.
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What are 3 interesting facts about snails?
Both snails and slugs are classified as gastropods. A snail cannot hear. They hunt for food by using their sense of smell. The movement-related slime that snails leave in their wake.
Do snails lack gender, or what?Because they are hermaphrodites, snails have a lot on their minds when they make love. Garden snails, as opposed to you, may simultaneously generate sperm like men and carry eggs like females.
They all have blue blood, including snails, spiders, and octopi. These beings truly have blue blood; we are not speaking in terms of royalty. Transporting oxygen throughout the body is one of blood's functions.
Because these conditions resemble their natural state, snails like darkness over light, moisture over dryness, and cold over heat.
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What structures do viruses not have?
Answer:
Viruses do not have cell wall, cell memberane ribosomes, mitochondria, cytoplasm etc..
they donot have these structures because they do not grow, they dont excrete means no extretory system is there, no energy is produced etc.
birth order, finis in exercises 16 and 22 we looked at the birth orders and college choices of some intro stats students. for these students: a) are enrolling in agriculture and human ecology disjoint? explain. b) are enrolling in agriculture and human ecology independent? explain. c) are being firstborn and enrolling in human ecology disjoint? explain. d) are being firstborn and enrolling in human ecology independent? explain.
For the birth orders and college choices of some intro stats student are:
a) enrolling in agriculture and human ecology are disjoint since the events share no outcomes. Students can only attend one college.
b) enrolling in agriculture and human ecology are not independent because knowing that one event is true changes the probability of the other.
c) being firstborn and enrolling in human ecology are not disjoint seeing as they share outcomes.
d) being firstborn and enrolling in human ecology are not independent because knowing that one event is true changes the probability of the other.
What is Birth order?Birth order refers to the order in which a child is born in their family; for example, first-born and second-born. Birth order is frequently thought to have a profound and long-lasting impact on psychological development. This claim has been debunked numerous times.
For enrolling in agriculture and human ecology, it is disjoint because the events have no common outcomes. Students can enroll in only one college. They are rather dependent since knowing that one event is true drastically changes the probability of the other, a student's chances of enrolling in Agriculture college are nearly 42%..
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what are friendly bacteria that aid with the body's biological functions, such as digestion? resident bacteria protozoans viruses fungi
Friendly bacteria that aid with the body's biological functions, such as digestion are known as Resident bacteria.
The Resident bacteria help keep the digestive system in working order and keep harmful bacteria from moving in. It provides essential capacities for the fermentation of non-digestible substrates like dietary fibres and endogenous intestinal mucus. This fermentation supports the growth of specialist microbes that produce short chain fatty acids (SCFAs) and gases. It dysbiosis probably promotes diet induced obesity and metabolic complications by a variety of mechanisms including immune dysregulation, altered energy regulation, altered gut hormone regulation, and proinflammatory mechanisms
Along with bacteria, other microorganisms are also present in the gut that promote digestion.The collective name for all the kinds of microorganisms that typically live in the gut is the gut microbiota.
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The development of different species without the influence of geographical separation is called ____ speciation
Answer:
Allopatric speciation
Explanation:
This is the development of different species without the influence of geographical separation. This can occur when a population is physically isolated from the rest of its species, such as by a river or mountain range, and begins to evolve independently. Over time, the isolated population may develop differences in traits and adaptations that make it unable to mate with the original population, leading to the formation of a new species.
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Why is monggo called Friday?
Answer: High in protein and fiber but low in calories or carbohydrates and it is also called poor man's meat .
Explanation: Every Friday is the most common meal among the Filipinos and it is being rich in protein ,The nitrogen fixing bacteria in its roots can help restore the fertility of the soil thus it is great as rotational crop .its a great thing that monggo ,as a produce ,is also easy to grow and quite tolerant to drought and it also helpful for the pregnant ladies since it helps to promote the development of baby's nervous system and discriminates the disabilities of growth .
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If two children have blood types O and AB, what are the genotypes and phenotypes
of their biological parents?
Parents' genotype: AO and BO
Parents' phenotype: Type A and Type B
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What is biologically contaminated?
Biological contamination generally refers to contamination of our food or environment with microorganisms which includes bacteria, viruses, fungi, and parasites.
Biological contaminants include bacteria, viruses, animal dander and cat saliva, house dust, mites, cockroaches, and pollen. There are many sources of these pollutants. By controlling the relative humidity level in a home, the growth of some sources of biologicals can be minimized.
Biological contamination refers to the event wherein any other living organism, mostly microorganisms, contaminate a food product. Biological contamination is one of the common causes of food poisoning as well as spoilage. Biological contamination of drinking water is common in developing countries and poses a health risk, often associated with diarrheal diseases. Contamination can also be caused by heavy metals like lead,cadmium and mercury. Contamination by heavy metal in food occurs mainly through pollution of water and soil.
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What does it mean when enzyme levels are low?
Enzymes are proteins that are produced by the body and play a vital role in many biological processes, including digestion, metabolism, and energy production. Enzymes are present in various tissues and organs throughout the body, including the liver, pancreas, and small intestine.
If enzyme levels are low, it can indicate that there is a problem with the production or function of these enzymes. Low enzyme levels can be caused by a variety of factors, including:
Inherited conditions: Some people may have inherited conditions that cause low enzyme levels.Infections or diseases: Certain infections or diseases, such as hepatitis or pancreatitis, can cause low enzyme levels.Medications: Some medications, such as statins, can interfere with the production or function of enzymes.Aging: As we age, our bodies may produce fewer enzymes, which can lead to low enzyme levels.Low enzyme levels can cause a variety of symptoms, including fatigue, weight loss, and abdominal pain, depending on the specific enzymes that are affected. If you are experiencing these symptoms and are concerned about low enzyme levels, it is important to speak with a healthcare professional for further evaluation and treatment.learn more about enzymes:
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Should parents be genetically screened before having children?
Answer:
yes
Explanation:
What 3 system removes carbon dioxide and waste from your cells?
Your skin, excretory system, and respiratory system all function to remove wastes from your cells.
All metabolic wastes are removed from the body by the excretory system. Organs that assist in the body's removal of nitrogenous wastes make up the human excretory system. The human excretory system consists of the urethra, two kidneys, two ureters, and a urine bladder.
Does the circulatory system eliminate waste and carbon dioxide from cells?Cells receive oxygen, nutrients, and hormones from the circulatory system, which also removes wastes like carbon dioxide. When we breathe out, carbon dioxide in the blood diffuses through the alveoli and is expelled from the body.
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Chapter 30 biology: the dynamics of life: reinforcement and study guide: fishes and amphibians
Amphibians are creatures that live in water and are born with gills; however, as they grow, many amphibians also acquire lungs.
As a result, they can eventually live on land. Some amphibians do live their entire lives with their gills. Amphibians lack scales, unlike fish, and the majority grow legs as they get older.
In general, there are two different groups of vertebrates: fish and amphibians. Although their natural habitats can occasionally be comparable, amphibians can live in both aquatic and terrestrial environments. Aside from that, fish and amphibians differ in key basic characteristics.
However, occasionally people misidentify the amphibian larvae as fish. Thus, understanding the distinctions between fish and amphibians is always preferable.
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Is genetically modifying food a good idea?
The World Health Organization, the National Academy of Science, and several other major science organizations around the world have reviewed research on genetically modified foods and found no evidence that they are harmful.
Genetically modified (GM) foods are those derived from organisms whose genetic material (DNA) has been altered in ways that do not occur naturally, such as the introduction of a gene from another organism.
Soybeans, corn (field and sweet), canola, cotton, alfalfa, sugar beets, summer squash, papaya, apples, and potatoes are among the 11 commercially available genetically modified crops in the United States.
Genetically Modified foods are intended to be healthier and less expensive to produce. GMO foods have several advantages, including more nutrients, fewer pesticides, and lower prices. Genetically Modified foods can cause allergic reactions or increased antibiotic resistance.
Some of the benefits of genetic engineering in agriculture include increased crop yields, lower costs for food or drug production, reduced need for pesticides, improved nutrient composition and food quality, resistance to pests and disease, greater food security, and medical benefits to the world's growing population.
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What is the size of capillary tube?
The length of the capillary tube can range from 1- 6m and the diameter on the inside ranges from 0.5-2mm.
Narrow cylindrical tubes having very small diameters are known as capillary tubes. Pressure reduction is the main objective of the capillary tube. Its primary usage is in the laboratories for collection of various samples of liquid. Molarity, molality and other concentrations can also be checked using capillary tubes. It can also be used in refrigeration in order to control the flow of refrigerants. The length of the capillary tube can range from 1- 6m and the diameter on the inside ranges from 0.5-2mm. If we decrease the diameter of the tube, the weight of the liquid also decreases. Hence, with the decrease in the diameter the phenomenon of capillarity increases. If there is insufficient height of the tube, the radius of the meniscus changes in order to ensure that there is no spilling.
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a mudslide kills a large fraction of a population of a flower species. the reduction in this flower population allows for an increase in the population size of a fern that competes with the flower. this is an example of
An illustration of facilitation occurs when the population of a fern that competes with the flower decreases, allowing the fern's population to grow.
What kind of disruption would cause primary succession?After an earthquake or volcanic eruption, lichens break down the rocks to produce new, nutrient-rich soils. This process is known as primary succession. Pioneer species are the first species that settle a region following a significant disturbance; they contribute to shaping the new ecosystem.
What will happen if the grasses aren't tampered with throughout time?Annual forbs and grasses will start to colonize the field if no management or further disturbance is introduced and it is allowed to rest. These plants are referred to as pioneer species.
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The beating of the cilia of the respiratory passages in the direction of the pharynx forms a(n) ____. respiratory rhythmicity center. debris filter increased surface area for gas exchange. smooth slick surface allowing particles to slide. mucus escalator.
The beating of the cilia present in the respiratory passages in the direction of the pharynx forms a mucus escalator.
Cilia are the microscopic thin hair-like extension found in the bronchi of the respiratory system. These are involved in the role of removing the dust particles as well as the microbes that enter the system along with air. These cilia also contain the goblet cells that secrete mucus and thus help in trapping the microbes.
Mucus escalator or also called the muco-ciliary escalator is the part of the conducting pathway of the respiratory system that comprises of mucus and cilia. This escalator aids in the movement of mucus up or out of the lungs in order to expel it out.
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Cyanide is a chemical that kills living things by the molecular mechanism of binding to a step in the electron transport chain that prevents the synthesis of ATP. Chemicals called antitranspirants exist that block the process of transpiration. Suggest molecular mechanisms by which these chemicals may work.
A molecular mechanism by which cyanide chemicals may kill living things by the molecular mechanism of binding to a step in the electron transport chain and thus preventing the synthesis of ATP may be via the avoidance of open stomata in plants.
What is the cellular mechanism of respiration?The cell mechanism of cellular respiration is a series of steps to produce ATP, the energy coin of the cell, by aerobic pathways that require oxygen, which involve the coupling of the electron transport chain to the movement of protons in the inner mitochondrial membrane, and it also occurs in the stomata of plant leaves in order to generate energy.
Therefore, with this data, we can see that the cell mechanism of cellular respiration may be associated with the electron transport chain in a process that involves different cells in plants including stomata that are required during gas exchange
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Which of the following is not true for enzymes?
a. Enzymes lower the activation energy barrier of a reaction.
b. Enzymes are made up of proteins.
c. Enzymes are used up in reactions.
d. Enzymes can be affected by changes in temperature.
e. Enzymes contain an active site.
Enzymes are used up in reactions. This is not true for enzymes.
Enzymes are proteins that aid in the speeding up of metabolism, or the chemical reactions that occur in our bodies. Some substances are created while others are destroyed. Enzymes are found in all living things. Our bodies naturally produce enzymes.
According to the International Union of Biochemists (IUB), enzymes are classified into six functional classes based on the type of reaction they catalyze. Hydrolases, oxidoreductases, lyases, transferases, ligases, and isomerases are the six types of enzymes.
Enzymes are proteins that aid in the speeding up of metabolism, or the chemical reactions that occur in our bodies. Some substances are created while others are destroyed. Enzymes are found in all living things. Our bodies naturally produce enzymes.
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Members of this group of microbes can break down glycogen deposited in the vaginal lining in response to estrogen. This helps to drop the pH in the area, preventing infections.
Archaea are organisms that thrive in anaerobic conditions containing hydrogen and carbon dioxide. Archaea are obligate anaerobes that thrive in low-oxygen settings and glycogen breaking.
The glycogen that is deposited in the vaginal lining in response to estrogen can be broken down by this group of microorganisms. By lowering the pH there, this helps to guard against diseases. Single-celled microbes called archaea have a similar structure to bacteria. They make up the third domain of life and are unique from bacteria and eukaryotes in terms of evolution. Examples of archaebacteria include methanogens, which create methane, halophiles, which can live in excessively salty settings, and thermophiles, which can live in extremely hot situations.
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In an experiment, a researcher prepares a reaction mixture by dissolving a substance in a buffered solution. The substance is the substrate of a certain enzyme. The researcher adds a small amount of the enzyme to the reaction mixture and measures the amount of product that is formed over time. Which of the following best predicts the immediate result of adding more substrate to the reaction mixture at the point indicated by the arrow in Figure 1?
answer choices
The amount of product will decrease until the reaction rate goes to zero.
The amount of product will increase until the reaction reaches its equilibrium point or until the substrate is used up by the reaction.
The amount of product will increase without stopping because the enzyme will be unchanged by the reaction.
The amount of product will decrease until the reaction reaches its equilibrium point or until the enzyme is been used up by the reaction
Until equilibrium is reached or all of the substrate has been eaten, the amount of product will continue to increase.
How can the rate at which an enzyme-catalyzed reaction occurs be determined?It is possible to identify enzyme catalysis by measuring the appearance of the product or the disappearance of the reactants. The same reactants may be used in a reaction, but a different catalyst may produce different results.
Which of the following would speed up how quickly reactants turn into products in a chemical reaction?The more the temperature rises, the more crashes occur. As a reactant's concentration rises, the likelihood of reactant collisions increases as well, accelerating the rate of the reaction.
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1. Sensory input is delivered to the brain by: A. afferent neurons B. motor neurons C. interneurons D. efferent neurons 2. Which structure in the brain is responsible for linking the left and right hemispheres? A. cerebellum B. interneuron bundle C. thalamus D. corpus callosum 3. This structure is the major routing area where sensory information is sorted before being sent to the correct processing center in the brain A. corpus callosum B. medulla C. pons D. thalamus 4. Some sensory information taken in by the right eye is processed by the right side of the brain A. True. B. False
1. Neurons and synapse at the thalamus carry information from sensory receptors to the brain.
2. The corpus callosum connects the two sides of the brain together at the bottom. The corpus callosum transmits messages from one half of the brain to the other while connecting the two halves of the brain.
3. It's common to think of the thalamus as a relay station. This is due to the fact that practically all sensory information (apart from smell) that travels from the thalamus to the cortex initially stops there before continuing to its final destination.
4. The right side (or cerebral hemisphere) processes the left field of vision and vice versa as it travels along an optic tract toward the thalamus. The thalamus's LGN (lateral geniculate nucleus): Consider this to be a central toll booth where all sensory data must stop before entering.
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a). Draw and label a simple diagram of the phospholipid bilayer consisting of multiple phospholipids, one transmembrane protein, one peripheral protein, and a few cholesterol molecules. b). Explain the orientation of the phospholipids. c). What is the purpose of the cholesterol in the membrane?
Multiple strategies exist for cholesterol to modify the bilayer structure of biological membranes. It modifies the lipid bilayers' fluidity, thickness, compressibility, water permeability, and intrinsic curvature.
Each phospholipid molecule has a head (polar area) that faces the bilayer's exterior. Each phospholipid molecule has a tail (nonpolar portion) that faces the bilayer's interior. The hydrophobic effect is the cause of this orientation.Phospholipids form a bilayer by positioning their heads inside the membrane and their tails toward the polar molecules of water solutions.
In between each phospholipid bilayer, there are pockets of cholesterol. The tails of the fatty acids may melt or freeze in the event of a temperature change. As the temperature rises, the phospholipid molecules have a tendency to spread apart, whereas at low temperatures, they prefer to move extremely closely together. This changes the fluidity of the membrane. disrupting the substance-transporting capacity of the membrane. The stabilising molecule known as cholesterol is what keeps phospholipids from moving excessively when the temperature changes.
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The total of all the chemical reactions and physical changes within the body is the:
a. homeostatic balance
b. catabolism
c. anabolism
d. metabolism
Explanation:
the total of all the chemical reactions and physical changes within a body is the body's metabolism. the answer is d