Answer:
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.
Explanation:
by the way what is corvid
Please answer !! 16 points
I need help
please ASAP
What is the function of the genetic material in the cell
Answer:
DNA serves two important cellular functions: It is the genetic material passed from parent to offspring and it serves as the information to direct and regulate the construction of the proteins necessary for the cell to perform all of its functions.
Explanation:
❗WILL GIVE BRAINLIIEST❗Which statement describes a characteristic of a question that can be answered through scientific inquiry?
A. It must be related to something that benefits society.
B. It can be answered by collecting votes from scientists.
C. It is constructed in such a way that possible answers can be tested.
D. It can be answered using an ethical argument.
Answer:
The answer is C
Explanation:
The answer is C because it can be answered using scientific methods, the scientific method is a good way to test something, and so therefore C is the answer
Hope that helped! Can I also get brainliest? I need a few more to advance, if not thank you anyways and have a nice day!!!
● History of Ribosomes./ pls describe and write so facts
Answer:
Ribosomes are small dense and granular ribonucleoprotein (i.e., RNA and protein) particles found attached on the outer surfaces of endoplasmic reticulum and nucleus as well as freely scattered in cytoplasm, mitochondrial matrix and chloroplast.
Explanation:
History of Ribosomes:
Ribosomes were first isolated from E. coli by Tissieres and J. D. Watson (1958), who found that ribosomal RNA alone accounts for 22% of the total weight in rapidly growing cells (90% of total RNA). Palade (1953) was the first to observe the ribosomes as dense particles or granules in electron microscope. Upon isolation they were shown to contain approximately equal amounts of RNA and protein.
Size of Ribosomes:
There are mainly two sizes of ribosomes — (i) One is smaller prokaryotic found in bacteria and blue—green algae, having a sedimentation coefficient 70S equivalent to a molecular weight of 2.7 × 106 daltons. (Dalton is the unit of molecular weight. One Dalton is equal to the weight of one hydrogen atom), (ii) Other is of eukaryotic cells of plants and animals of 80S coefficient with a molecular weight of about 4 × 106 daltons.
What is the Greek name for each of the spheres?
Answer:
stone (litho) or ground (geo)
air or vapor (atmo)
water (hydro)
life (bio).
Explanation:
What do you think is the more ethical and feasible approach to wildlife preservation: change human behavior to limit human impact, or create sanctuaries to preserve some of the threatened animals’ population? Why?
Answer:
I think we need to do both, but I'll let you decide which you think sounds better for you personally (personally I think sanctuaries are often more effective).
Explanation:
Behavior changes It is not really ethical to continue to have a negative impact when changing our behavior can help, however, this may not be ideal as explained below
Sanctuaries It is often more feasible to create preservation sanctuaries because 1) it is hard to get everyone to change enough habits in order to create large-scale change and 2) some species require more immediate action to save, whereas changing human behavior may not be enough and/or at the right pace to preserve and expand the populations of endangered populations
Depending on the main threat to a specific population, the approach will obviously be different.
how are most of the non-essential amino acids made in the body?
At this point, 6 carbon dioxide molecules have
been released (2 from the link reaction and 4
from the Krebs cycle). Why does this make
sense?
Glucose has combined with oxygen to make carbon dioxide.
Glucose has 6 carbons and has been completely broken down by this stage.
The 6 carbon dioxides are reactants that will be used to make ATP.
These 6 carbon dioxides are converted to oxygen by respiration.
All of these.
Glucose has combined with oxygen to make carbon dioxide and Glucose has 6 carbons and has been completely broken down by this stage.
Glucose react with oxygen to make carbon dioxide, water and energy in the form of ATP. Glucose has 6 carbon atoms which react with oxygen that is completely broken down into three products such as carbondioxide, water and energy in the form of ATP by the process of cellular respiration so we can conclude that carbondioxide gas is produced by breaking down of glucose molecules from the Krebs cycle that is a stage of respiration.
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How would life on Earth be affected if water was less dense than ice?
Answer:
freeze and sink over and over until the entire lake was frozen.
Explanation:
This would eliminate many aquatic organisms and produce a system with far fewer life forms in lakes which freeze periodically.
The cell membrane is a unique structure that has many functions.
How is the cell membrane involved in riding the body of bacteria,
allowing water to enter the cell, and export material out of the cell?
Answer:
The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
Explanation:
How to make bacteria as a treatment for sewage waste
Answer: Bacteria break down organic material in wastewater and form the floc that settles and separates solids from liquids. Controlling F/M ratio–a vital component to creating a favorable environment for wastewater bacteria–can be accomplished through the use of bioremediation products. Bacteria account for 95% of the microorganisms in wastewater. They are single-celled microorganisms that are classified based on their response to oxygen.
Aerobic bacteria use oxygen, which is added mechanically, to break down wastewater contaminants, converting it into energy. Bacteria use this energy to grow and reproduce. Anaerobic bacteria obtain oxygen from their food source. As anaerobic bacteria break down sludge, they produce methane gas. This methane gas can be used as an alternative energy source, called biogas, to fuel the wastewater treatment process. Anaerobic bacteria can also be used to lower the amount of phosphorus in the effluent. Although they prefer oxygen, facultative bacteria can switch between aerobic and anaerobic forms in response to their environment.
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máu là Mô liên kết!!!!!!!!!!!!!!!!!!!!!!!
give examples of terrestrial food chain.(one edaphic food chain and one aboreal food chain
Answer:
Nectar (flowers) - butterflies - small birds - foxes.
Dandelions - snail - frog - bird - fox.
Dead plants - centipede - robin - raccoon.
Decayed plants - worms - birds - eagles.
Fruits - tapir - jaguar.
Fruits - monkeys - monkey-eating eagle.
Grass - antelope - tiger - vulture.
Grass - cow - man - maggot.
Explanation:
Answer:
Grass-Grasshopper-Snake-Hawk
Explanation:
very simple one
A directional response that allows plants to grow towards light is called:
Answer:
Phototropism
Explanation:
It is the directional response that allows plant to grow towards or in some cases away from a a source of light
In living organisms the cell
cycle is closely regulated.
What do you think will
happen if cell division is not
controlled?
Answer:
Explanation:
Disruption of normal regulation of the cell cycle can lead to diseases such as cancer. When the cell cycle proceeds without control, cells can divide without order and accumulate genetic errors that can lead to a cancerous tumor
The cell life cycle is controlled meaning that:
The reproduction of the cell is controlled.
The cell has a "programated death" meaning that at some point, all normal cells die.
If there is a problem with these (uncontrolled reproduction or cells that just not die) a tumor will appear.
Where the tumor is just a mass of these cells that reproduce uncontrolled and that don't die naturally.
So the thing that happens if cell division is not controlled, is that a tumor will appear.
what balances the skills and equipment of the hunter with the abilities of the animal to escape
Fair Chase strikes a balance between the hunter's ability and tools and the animal's capacity for escape. Fair Chase is mainly determined by people and their level of hunting prowess.
What is fair chase?Fair chase is defined as a term used by hunters to refer to a moral method of taking down large game animals. A fair chase is the ethical, sportsmanlike, and legal chase and taking of any free-ranging wild game animal in a way that does not offer the hunter an improper or unfair advantage over the game animals, according to the Boone and Crockett Club.
A wildlife management organization establishes hunting laws in the majority of states. Regular meetings of these organizations will allow members of the public to express their opinions and offer suggestions. When the entire hunting experience is their major focus, seasoned hunters reach the sportsman stage. Although they may still have a target animal or a number of kills in mind, hunters at this stage don't plan their hunts around these objectives.
Thus, fair chase strikes a balance between the hunter's ability and tools and the animal's capacity for escape. Fair Chase is mainly determined by people and their level of hunting prowess.
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What are all living things made of?
Answer:
All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures. In multicellular organisms, similar cells form tissues.
Explanation:
Answer:
Cells!
Explanation:
The cell theory states that...
-Cells are the building blocks of life
-All living organisms are composed of one or more cells.
-All cells come from pre-existing cells
need help on #3: number the following structures in the oder in which blood passes through them - start with the valve through which blood exits from the right atrium.
The order is tricuspid valve, right ventricle, p. valve, p. artery, lungs, left atrium, mitral valve, left ventricle, aortic valve, aorta, tissues and vena cava.
What is blood passage?The blood passage refers to the passage of blood cells in the bloodstream of the circulatory system.
The tricuspid valve acts to avoid the regurgitation of the blood cells in the circulatory system.The pulmonary valve is a channel located between the right ventricle and the pulmonary artery.In conclusion, the order is tricuspid valve, right ventricle, p. valve, p. artery, lungs, left atrium, mitral valve, left ventricle, aortic valve, aorta, tissues and vena cava.
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A competitive inhibitor of DNA helicase was introduced into a cell. How would the introduction of this inhibitor affect DNA replication?
A) There would not be enough energy to drive the DNA replication process
B) Free nucleotides would be unable to join complementary base pairs.
C) Nucleotides would be unable to join together by condensation reaction to form a polynucleotide.
D) Some of the DNA would be unable to separate into two strands.
Answer:
Some of the DNA would be unable to separate into two strands.
Explanation:
It will effect as some DNA would be unable to separate into two strands.Morwenna has always been overweight and Ammon has always been thin. If they both look at pictures of food, a brain scan is likely to show that Morwenna has ________ than Ammon. a. more activity in the limbic system b. more activity in the ventromedial hypothalamus c. less activity in the limbic system d. less activity in the ventromedial hypothalamus
Answer:
???????
Explanation: i can't give you the exact answer but um i think 'cause she's more fatter than Ammon
HELPPPP!!!
Describe an example of how island biogeography principles were used to explain biodiversity changes in areas that were not specifically islands.
Answer:
How Biogeography Affects Biodiversity
Alfred Russel Wallace, Father of Biogeography
Figure 1: Alfred Russel Wallace, Father of Biogeography
Some places contain more species than others. For example, Antarctica has fewer species than a temperate deciduous forest, which in turn has fewer species a tropical rainforest. For over 150 years, researchers have sought to make sense of the gross and fine scale spatial patterns in biodiversity, and to elucidate both the proximate and ultimate causes for these patterns.
This article describes some of the major geographic patterns in species richness, and the processes and theories that are thought to account for these patterns. Much of this knowledge has emerged from the tremendous body of work from one scientist, Alfred Russel Wallace (Figure 1), widely regarded as the “Father of Biogeography.” Aside from co-originating the process of Natural Selection with Charles Darwin, Wallace spent extended periods studying the distribution and diversity of plants and animals in Amazonia and Southeast Asia in the mid 1800s. Many of the patterns and processes featured in this article were initially described by Wallace, and careful study of his work indicates that his ideas presaged many of the discoveries made by his numerous successors.
Many of the spatial patterns in biodiversity are overt, others are subtle and yet additional patterns remain undetected. While the existence of these patterns may be obvious — and changes in the environment that are paired with these patterns may also be obvious — the mechanisms that cause the differences in biodiversity along environmental gradients are under still the subject of scientific debate. Because large-scale patterns are the emergent result of complex interactions at many spatial and temporal scales, no single answer is likely to ever emerge, but with continued research our understanding of the processes shaping these patterns increases.
Historical Processes Affecting Biogeography
Darwin's finches of the Galapagos Islands are a classic example of adaptive radiation.
Figure 2: Darwin's finches of the Galapagos Islands are a classic example of adaptive radiation.
All species occurring in at a given place and time either arrived from another place or originated in that location from ancestral species. This fact applies to extinct species that were ancestors of all extant species. Species richness in a given location is the result of three factors — the rate of speciation, the rate of extinction, and the dispersal of species from other locations. In principle, if biogeographers could understand how the current and past environment has shaped these three factors, we would then obtain a comprehensive understanding of what generates all biogeographic patterns of species richness. However, numerous environmental and organismal parameters can drive these historical factors, in both complex and interacting fashions.
Plant cells don't have mitochondria in their cytoplasm because of the presence of chloroplasts that convert light energy into chemical energy.
True
False
Answer:
true brainliest pls
Explanation:
which term refers to distention of the renal calyces and pelvis?
Answer:
Hydronephrosis refers to distention of the renal calyces and pelvis of one or both kidneys by urine. Hydronephrosis is not a disease but a physical result of urinary blockage that may occur at the level of the kidney, ureters, bladder, or urethra.
Explanation:
biology definitions i wrote down
How many chromosomes does a normal passeriformes have?
Answer:
In general, bird karyotypes have a high diploid number (2n) of typically around 80 chromosomes that are divided into macro- and microchromosomes
Suggest TWO different ways by which the deficiency disease caused by a lack
of iron in the diet could be treated.
Answer: hey i have that problem (anemia) causes passing out and excessive bleeding in the nose.
this could be treated by 1. iron supplements taken by mouth.
2. Foods high in iron and foods that help your body absorb iron (like foods with Vitamin C).
Explanation:
The world's human growth rate is dependent on
a the birth rate
b the death rate
C A and B
plz answer correctly. thank you.
Answer:
Mitosis and cytokinesis
Explanation:
Answer:
see below
Explanation:
1) A- Interphase and mitosis
2) Interphase
can you guys please help me. this is my last one
you guys can just do 3 sentences
please don't put any links or I will report you
Answer:
why don't you want people to send you links?
in a eukaryotic cell, where is most of the dna located?