Answer:
They allow capillary walls to open and become leaky.
Which
hypothesis is
correctly
written?
A. What will happen if a
plant is put under green
light rather than
another color?
B. If the plant is put
under green light, then
it will grow the largest.
C. Plants put under
green light tend to be
larger, but no one
knows for sure.
Answer:
I think C
Explanation:
Plants put under green light tends to be larger, but no one knows for sure
I think it's correct because hypothesis's are guesses so if no one knows for sure, it could be correct
Juliet has asthma and regularly uses inhalers and a nebulizer, a machine to help improve her breathing with inhaled medicine. Juliet knows how important the respiratory system is and learns more about how it works. Explain the job of the respiratory system. Identify the parts of this system, and describe their functions.
Respiratory system is one of the major systems of the body that helps to oxygenate the blood for cell use.
What are the parts of respiratory system?The parts of the respiratory system include the following:
Trachea: This makes up the upper part of the respiratory system and serves as a channel for passage of gases.Bronchi: This is located distal to trachea which bifocates at the carina to form the right and left bronchi.Bronchioles: This serves a channel for the passage of air.Alveolar ducts: This is the duct that delivers air to the alveoli where gaseous exchange takes place.Learn more about respiratory system here:
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Flooding, fires, volcanoes, and human changes can all damage ecosystems. The process of regrowth in an ecosystem tends to restore a state of equilibrium. Which is an example of how a damaged ecosystem will begin the restoration process?
An example of how a damaged ecosystem will begin the restoration process is:
some species of pine trees only release their seeds following the extreme heat of a forest fire; option D
What is the process of regrowth in an ecosystem?The process of regrowth or restoration in an ecosystem is the process by which the ecosystem recovers when a drastic change occurs in the ecosystem that alters the equilibrium in the ecosystem.
Such changes could be caused by factors such as flooding, fires, volcanoes, and human activities.
The process of regrowth starts with primary producers first colonizing the disturbed ecosystem before other organisms then start habiting the ecosystem.
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Complete question:
Flooding, fires, volcanoes, and human changes can all damage ecosystems. The process of regrowth in an ecosystem tends to restore a state of equilibrium. Which is an example of how a damaged ecosystem will begin the restoration process?
A Seasonal turnover in a lake replenishes oxygen to deep water and cleanses waste products from the lake.
B Rain forest species can spread their seeds over a wide area to begin growing in new regions.
C Mining companies plant trees and add wildlife to restore an area after a mining operation.
D Some species of pine trees only release their seeds following the extreme heat of a forest fire.
I don’t know how to do this
Answer: it is the first one
Explanation:
he was inspired by his father to be a doctor. And deep down his dream is to be a doctor
Pike's Peak, in Colorado, is pictured below. Pike's Peak has
been shaped in part by water filling cracks in the rock, then
freezing and expanding
Which type of weathering occurs after water enters cracks in rock and then
freezes?
A. Abrasion
B. Oxidation
C. ice wedging
D. Mass wasting
Answer: B
Explanation:
Answer: C
Explanation:
it’s really not it I js got the answer wrong for oxidation and the right answer is ice wedging trust me:)
What’s the correct answer answer asap for brainlist
Answer:
B
Explanation:
If the heart becomes damaged or weakened, how will this affect the body’s systems?
Answer:
If the heart becomes damaged or weakened, how will this affect the body's systems? The circulatory system will not function well, which will affect all other body systems.
Explanation:
Why is mathematics an important tool for scientist?
Explanation:
because it's help them to understand the whole world and universe
Patrick is a 16 year old boy whose body has stopped producing osteoclasts. What does this mean for his bones? What other parts of
his body will be affected by this?
Hindrance in the production of osteoclasts will result in weak and brittle bones. This eventually leads to the bones of the hip, wrist, and spine weakness.
The function of osteoclasts is to resorb or break down bone. This is a process that is necessary for the maintenance of bone mass and for the repair of damaged bone.
This is necessary for the elimination of dead bone cells in the human body. The malfunctioning or stopping of the function of Osteoclasts weakens bones, making them prone to breaking from even minor stresses like coughing or stooping.
In worst cases, it leads to fractures in the regions of the hip, wrist, or spine. Bone is a living tissue that constantly degrades and is replaced so that the endurance and working of the bone are ensured throughout the body.
Therefore, Patrick would face severe problems with his bone, especially in his hip, spine, and wrists. All the bones in these regions will start to lose their strength and will become brittle and weak.
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what is the structural relationship between glucose and galactose?
The isomer of glucose is galactose. Only how their atoms are organized makes a difference. Stereoisomers of glucose and galactose exist.
The orientation of the hydroxyl group (OH) at carbon 4 distinguishes galactose from glucose most significantly in terms of structure. As isomeric monosaccharides (hexoses), glucose, galactose, and fructose have the same chemical formula but slightly different structures. Aldoses are glucose, galactose, and ketoses are fructose.Epimers are a class of carbohydrates that only differ in the position of the hydroxyl (or -OH) group at one position. Galactose and glucose are therefore epimers because they have the same configuration at all positions other than one.
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Lesson 3.2 Review -- High School, Grade 9
1. How does solar energy and the greenhouse effect impact Earth's global climate system?
2. Describe the factors that result in different climates in different parts of the world.
3. Describe the different causes of climate change.
4. What are the factors that result in different climates in different parts of the world?
5. (Apply Scientific Reasoning) How might the speed of climate change affect the ability of life on Earth to adapt and survive?
6. For Biosphere to meet its goal, why was it necessary for it replicate a variety of climates?
The Solar energy and the greenhouse effect impact Earth's global climate system by increasing the temperature on the surface of the Earth. There are several factors such as green house effect and air pollution that result in different climates in different parts of the world.
What is green house effect?The greenhouse effect has been described as when gases in the earth's atmosphere has been trapped the heat from the sun that would otherwise escape into space. This concentration of the Solar energy has been trapped in the earth's lower atmosphere causes the temperature of the earth's surface to rise.
The greenhouse effect has been traps this heat energy in the earth's lower atmosphere. This could leads to increased temperatures on the surface of the earth and intense impacts on the global climate system.
Therefore, There are several factors such as green house effect and air pollution that result in different climates in different parts of the world.
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EXPLAIN IN DETAIL HOW THE TWO RELATES TO THE CELL THEORY
The following lists components of the nature of science. Explain how at least two of these are related to the cell theory:
Scientific knowledge is durable yet subject to change
Science is a social activity
Cell theory states that all living organisms are made up of cells, which are structural and functional units of life. These are made from already preexisting cells.
Justification for the above sentence:
Knowledge is created through the process of science. Both thorough observation of occurrences and the creation of theories to explain those observations are essential to the process. Knowledge will always change since new observations could refute accepted ideas. No matter how well one theory explains a given collection of observations, it is always feasible that another theory will fit the same set of observations just as well, better, or across a larger range.
The majority of scientific knowledge is enduring, despite the fact that scientists reject the idea of discovering perfect truth and accept some doubt as a component of nature. Science typically modifies ideas rather than rejects them completely because strong theories are more likely to endure, advance in accuracy, and gain widespread acceptance. For instance, when developing the theory of relativity, Albert Einstein did not completely reject the Newtonian laws of motion but rather demonstrated that they were only a rough approximation with a more general concept.
This seems like a strange restriction because it is obvious that both modern science and the majority of earlier science is a social activity. For information, samples, techniques, and many other things, scientists depend on one another. Their interactions are occasionally competitive and frequently cooperative.
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which of the following sources is likely to provide the most reliable scientific information about a new kind of motor oil
Answer: A peer-reviewed article about the effectiveness of the motor oil.
Which of the following indicates the
amount of individuals which can live
comfortably in a particular area?
A. emigration
B. immigration
C. population growth
D. carrying capacity
Why do male mammals risk having the testicals outside the main body?
Which of these pathogens are
single-celled eukaryotes that
infect through contaminated water
or insect bites?
fungi
protists this
Answer:
b) Protists
Explanation:
Protists like protozoa are the single celled eukaryotes that infect through contaminated water or insect bites. Hence, the option (b) is correct answer.
7.Name the stages of photosynthesis and explain them in brief.
Which activity describes the use of technology in science?
listening to a scientist talk about cells
viewing stars through a telescope
observing a plant through the bedroom window
creating a blank data table in a notebook
Answer:
creating a blank data table in a notebook
Answer:
The Answer is B. viewing stars through a telescope
Explanation:
In the human body, many cell types do not continue dividing. Give two examples of cells that do not divide and two examples of cells that grow and divide rapidly and regularly.
Neurons and mature red blood cells do not divide. Skin cells and stomach cells grow and divide rapidly and regularly.
Neurons are cells of the nervous system that do not have centrioles because the centriole is an important organelle for cell division.
Red blood cells do not have nuclei or other organelles required for DNA and RNA synthesis. So they can't divide.
Skin cells lose dead cells every day. So they divide rapidly and regularly to replace the lost cells to prevent infection.
The cells lining the stomach undergo wear and tear during food absorption, digestion, and waste elimination. So these cells also divide rapidly and regularly to replace the lost cells.
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Why is meiosis called cell division?
Meiosis, also known as "cell division," involves cutting the number of chromosomes in half, ensuring that the newborn will have the right number of chromosomes when the sperm and egg fuse.
Why is Meiosis Important?The process of meiosis is what creates the gametes, which are essential for sexual reproduction. It turns on the genetic material required for gamete development. It helps to maintain a consistent number of chromosomes by cutting the number of chromosomes in gametes cells in half. This is significant because following fertilization, the number of chromosomes doubles. An independent combination of paternal and maternal chromosomes occurs during this process. As a result, the chromosomes and the traits they regulate are rearranged.
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The main purpose of a multiple cloning site is:
1. To keep the plasmid from leaving the nucleoid region.
2. To ensure the plasmid is copied many times in the bacterial cell.
3. To provide a location where DNA can be inserted into a plasmid.
4. To make it possible to eliminate bacteria that have not been genetically modified.
5. To ensure that each daughter cell receives a copy of the plasmid during cell division.
The main purpose of a multiple cloning site is: (3)To provide a location where DNA can be inserted into a plasmid.
A multiple cloning site is a sequence in the DNA of an organism that consists the cut palindromic site for many restriction enzymes. This region is highly exploited in laboratories to insert DNA into the vector for its transmission into the host.
Plasmid is the closed circular double-stranded DNA molecule. It is particularly present in bacterial cells. It is an autonomously replicating genetic material i.e., it can replicate on its own. Plasmids are largely used as vectors for gene transfer.
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Which event occurs in photosystem I?
1. Water molecules are broken apart.
2. Light energy excites electrons.
3. Oxygen is released as waste.
4. Electrons are transferred to ferredoxin.
Answer: Electrons are transferred to ferredoxin.
Explain the effects of base substitution, insertions, and deletions in the framework
Substitution
A substitution is a mutation that interchanges one base for another (i.e., a change in a single “chemical letter” such as switching an A to a F). Such a substitution can:
change a codon to one that encodes different amino acids and causes a small change in the protein produced. For example, sickle cell anemia is caused by substitutions in the beta-hemoglobin genes, which alters a single amino acid in the produced protein.
Insertion
Insertions are mutations in which extra base pairs are inserted into a new place in the DNA framework.
Deletion
Deletions are mutations in which a section of DNA is lost, or deleted from the existing DNA framework.
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Beetroot cells contain a family of dark red pigments called betalains. The selectively permeable nature of the beetroot cells keeps the internal environment of the cell separate from the external environment of the cell. Researchers are interested in determining whether the selective permeability of beetroot cells is due to the cell membrane or if it is due to the cell wall.
Exposure to cellulase is known to damage the structure of the cell wall. An experiment is set up in which beetroot cells are placed in an aqueous solution with cellulase and in one without cellulase.
Which of the following results best refutes the alternative hypothesis that selective permeability is a consequence of the cell wall?
A. When beetroot cells are placed in a solution with cellulase, the solution turns dark red.
B. When beetroot cells are placed in a solution with cellulase, the solution remains clear.
C. When beetroot cells are placed in a solution, it turns dark red with or without cellulase present.
D. Since plant cells contain cell membranes, not cell walls, the alternate hypothesis cannot be tested.
The result that refutes the alternative hypothesis that selective permeability is a consequence of the cell wall is: B. When beetroot cells are placed in a solution containing cellulase, the solution remains clear.
Cell wall is a characteristic specific to the plant cells. These do not exist in the animal cells. Cell wall is made up of dead cells and provide the cell structure support and mechanical strength. The plant cell wall has a composition of cellulose, hemicellulose and pectin.
Semi-permeability is the feature of any membrane where it allows the passage of only few substances through it. In living cells, this characteristics can be found in cell membrane only and not in cell wall.
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what symbiotic relationship between a snail & Clostridium worm
Symbiotic relationship between a snail & Clostridium worm is Symbiosis.
A mutualistic, commensalistic, or parasitic symbiosis is any type of close and long-term biological interaction between two different biological organisms. The organisms, each of which is referred to as a symbiont, must be of different species. Symbiosis can be obligatory, meaning that one or more symbionts rely on each other for survival, or facultative (optional), meaning that they can live independently. Mutualism is a type of symbiotic relationship in which both partners benefit.
A mutually beneficial interaction between a clownfish and an anemone is an example of a symbiotic relationship. The anemone's nematocysts, or stinging cells, protect the clownfish from predators and provide a safe place for clownfish pairs to lay their eggs.
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How much space does a red imported fire ant need to grow and reproduce
Answer:
The size of the sides is up to you – the thinner the sides are the less space the ants will have. It all depends on the species, but roughly between 1,5 and 3 centimetres (0,6-1,2 inches) is recommended. To make sure the formicarium will keep together we need something to fixate it with.
Product of process 3 in nucleus
Replication and transcription are typically carried out in the nucleus. The three products of these processes are DNA, mRNA, and rRNA. DNA is the product of replication, and RNA is the product of transcription.
What is a nucleus?In the eukaryotic cell, the nucleus is the central part of the cell. It contains the genetic material, such as the chromosomes, of the organism.
In the double membrane structure of the nucleus, DNA replication takes place. A copy is formed as a result of DNA replication from one DNA. In transcription, mRNA is formed from the gene (DNA). From nucleolar DNA, rRNA is formed. The gene splicing takes place in mRNA in nucleus.
The three products are DNA, mRNA, and rRNA, which are synthesized from the nucleus by the processes of DNA replication and transcription, respectively.
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Which structure is the site of the synthesis of proteins destined for export from the cell?
a. Lysosomes
b. Smooth ER
c. Rough ER
d. Free cytoplasmic ribosomes
e. Golgi vesicles
Answer:Golgi Vesicles
Please guys i need help so baldy
1. Axon terminal
2. Node of Ranvier
3. Dendrites
4. Nucleus
5. Cell body
6. Axon hillock
7. Endoplasmic reticulum
8. Synaptic vesicle
9. Mitochondria
10. Microtubule
Snake venom is modified saliva that is secreted from glands on the sides of the snake's head.
Some types of venom functions by changing the shape of the enzyme cholinesterase in the
snake's prey. Cholinesterase is an enzyme that functions as a neurotransmitter that allows
the brain to control muscle movement.
What is the result of the shape change in the enzyme cholinesterase?
F The enzyme will no longer catalyze the reaction, which causes the prey to lose muscle
control.
G The substrate will change shape to match the enzyme so that the prey muscles continue
working.
H The enzyme will be capable of binding to more substrates that allow the prey to escape
the snake.
J
A new product will be made that causes the prey's muscles to not function as well as
they should.
The cholinesterase enzyme's altered shape prevents it from catalyzing the reaction, which makes the prey lose control of their muscles.
Where do snakes' venom glands reside?The venom gland, a salivary gland modified, is found slightly below and behind the eye. The size of the venom gland depends on the size of the snake, and this figure depicts the Timber Rattlesnake's venom gland's approximate size in relation to its skull (Crotalus horridus).
What are the names of venom glands?Before being transported by a duct to the base of channeled or tubular fangs, the venom is first stored in huge glands called alveoli.
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