Answer:
A blood donor is a person who donates blood and a blood recipient is a person who receives donated blood.
Explanation:
If differences exist within a population then when the environment changes certain organisms will have. A survival reproduction advantages over others And those will change the _ of the various genes
Benefits for a surviving reproduction over others And those will alter how various genes have evolved adaptively.
Describe a gene.The fundamental structural and physiological component of transmission is a gene. This same basic component of reproduction is thought to be the gene. Parents pass on their genes to their children, which include the data required to define their physical and biological features. The majority of genes produce distinct antibodies or portions of enzymes, each of which performs a different function throughout the body.
Is DNA a gene?Deoxyribonucleic acid (DNA) is a component of genes, which put out a specific molecular basis in one or perhaps several types of biological cells. The 23 genes structures seen in cells are where a child's genes are located. Sister chromatids, that have been a part of every cell, contain genes.
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How could the extinction of plants have caused the extinction of some animals?
What would be on the gag reel of your life? ...
Answer: everything
Explanation:
Answer:
Everytime i've had a total brain fart in public
Explanation:
what is the number one factor when descending to the bottom of the ocean floor ?
A large storm destroys the greenbelt of an island coastline. What are the consequences of this loss of habitat? A fast recovery of the coastline ecosystem Beach erosion to the unprotected coastline A quick redevelopment of the greenbelt An expansion of beach vegetation.
The consequences of the loss of habitat due to a large storm destroying the greenbelt of an island coastline are b. Beach erosion to the unprotected coastline.
What does the loss of habitat mean for a particular environment?The loss of habitat in a particular environment is a critical phenomenon that may occur due to unbalance homeostasis and or the state of equilibrium in the species that live in a given region and or as occurs in the case due to a climatic catastrophe that may lead to destroying the greenbelt of an island coastline.
Therefore, with this data, we can see that the loss of habitat is key in an ecosystem because it may lead to the unprotection of such an area and consequent outcomes derived from the loss of biodiversity of the species living in the region or habitat.
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Answer:
B!
Explanation:
What can fossils of teeth tell us about extinct animals?.
Answer:
To understand what extinct animals, such as dinosaurs, ate, we can compare their tooth types to the range of tooth types that we see with modern animals such as these carnivorous and omnivorous animals. ... These kinds of clues tell us that this animal was a meat eating animal. This fossil is the jaw of a Hadrosaur.
Explanation:
Teeth from more recent fossils reveal more because they have more isotopes preserved in them. For example, the nitrogen in the teeth of Neanderthals can reveal whether the protein they ate came from plants or animals.
An animal's teeth is literally shaped by its food. That's according to new research from the Department of Geology at the University of Leicester, published in the Royal Society journal Interface. Research shows that the roughness of tooth surfaces can reveal what an animal has been eating.
100 POINTS
a gene has the following nucleotide sequence TTCAGAGGT What amino acid sequence will the resulting protein have?
Answer:
im not gay
Explanation:
During the citric acid cycle, both NAD and FAD ________ a hydrogen atom and become ________.
A) lose; oxidized
B) gain; oxidized
C) lose; reduced
D) gain; reduced
E) gain; ATP
During the citric acid cycle, both NAD and FAD lose a hydrogen atom and become oxidized. So, the option A is correct.
The citric acid cycle, also known as the Krebs cycle or tricarboxylic acid (TCA) cycle, is a series of chemical reactions that occur in the mitochondria of cells. During this cycle, acetyl-CoA is broken down into carbon dioxide and energy in the form of ATP. The cycle also involves the transfer of electrons to electron carriers, including NAD and FAD. In the citric acid cycle, NAD and FAD act as electron acceptors, becoming reduced as they accept electrons. However, they also lose a hydrogen atom, which means they are being oxidized at the same time. Hence A is correct.
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O oxigênio é importante um gás na quebra de ligações entre os átomos que formam a glicose para a produção de energia. Por que a presença de ferro no nosso organismo é importante para este processo?
Answer:
It transport oxygen from lungs to the cells.
Explanation:
The presence of iron in our body is very important for this process because iron is responsible for the transportation of oxygen. Hemoglobin is made up of iron that takes oxygen from the lungs to each and every cell. Iron is an essential element for the formation of blood in human body. About 70 percent of body's iron is found in the red blood cells of our blood called hemoglobin and in the muscle cells called myoglobin. So we can say that iron is very important for the release of energy in the process of respiration.
someone help with this pls thank you .
Answer:
3a) The number of neutrons
b) protons and neutrons
Explanation:
Isotopes of the same element have the same number of protons but different number of neutrons
alpha particles consist of two protons and two neutrons
What are organic molecules? What are organic foods? How does
organic food address the health risks discussed in chapter 8? Are
you, and how, utilizing organic foods?
Carbon atoms are bound to other carbon atoms in organic molecules, which also frequently contain other elements like hydrogen, oxygen, etc.
Carbon atoms bound to other carbon atoms make up organic molecules, which also frequently contain other elements like hydrogen, oxygen, nitrogen, etc. These are the elements making up all living things, like plants, animals, and bacteria which are thus essential to biological processes. Agricultural items that are grown and processed without utilizing synthetic chemicals, like synthetic fertilizers, pesticides, and herbicides, are referred to as organic foods. Natural fertilisers, crop rotation, biological pest management, and other ecologically beneficial techniques are prioritised in organic agricultural practises.
Natural insecticides, herbicides, and fertilisers are not used in the production of organic foods, which may lower the danger of ingesting chemical residues. It is important to remember, though, that some pesticides with organically derived ingredients are permitted in organic cultivation. A food that is organic could have more of a few nutrients, like vitamin C, iron, and magnesium. However, nutrient content discrepancies between foods cultivated organically and conventionally can vary depending on a number of variables, including crop type, farming methods, and soil quality.
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Are Cnidarians a Representative organism?
Answer:
No
Explanation:
Cnidarians refer to organisms found in the phylum Cnidaria/coelenterata. They're metazoans.. A representative organism of this phylum is hydra
the gram stain is not suitable for identifying members of the archaea. group of answer choices true false
It is false to claim that the gram stain cannot be used to identify individuals who belong to an archaea.
What role does archaea play?By carrying out tasks related to nutrient cycle, stress reaction, and phytohormone production as well as by interacting with the both microbes and their hosts, Archaea support the health of the bog ecosystem and the function of the vegetation.
How does archaea affect humans?Most archaea have so far been found to be helpful rather than harmful to human health. They might be crucial for lowering skin pH or maintaining it there because a lower pH is linked to a reduced risk of infection.
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Which of the following is a characteristic of unicellular organisms?
Answer: They have asexual reproduction, so an organism can produce its descendants. They can be eukaryotes or prokaryotes. Their internal part is formed by a liquid different from their external environment that allows the realization of biological processes.
Explanation:
Which statement best supports the RNA world hypothesis? a. DNA molecules are a precursor to self-replicating RNA molecules, which are used to build proteins. b. Early RNA molecules were able to self-replicate, which helps to explain why all organisms share the same genetic code C. Simpler self-replicating organic molecules preceded RNA and contain genetic information. d. The absence of oxygen in Earth's early atmosphere allowed for proteins to catalyze the production of new RNA molecules.
Answer:
b. Early RNA molecules were able to self-replicate, which helps to explain why all organisms share the same genetic code
Explanation:
The RNA world hypothesis is an evolutionary theory that indicates the RNA-living forms were produced first before the appearance of DNA and proteins. This hypothesis is supported by the fact that RNA is capable of reproducing on its own (like DNA), and also is able to catalyze chemical reactions (like protein enzymes). The RNA world hypothesis states that this RNA world was then followed by the evolution of ribonucleoproteins.
Answer:
the correct answer is B
Explanation:
i took the test and got it right
what is the relationship between surface tension and cohesion
Answer:
The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. The molecules at the surface do not have other like molecules on all sides of them and consequently they cohere more strongly to those directly associated with them on the surface.
The relationship between surface tension and cohesion is that Cohesion is directly proportional to surface tension.
What are surface tension and cohesion?Cohesion is the attraction of same molecules and surface tension occurs due to the attraction of molecules .
Therefore as the cohesion becomes high, surface tension becomes here.
We can say that the Cohesion is directly proportional to surface tension.
means As cohesion increases, surface tension increases.
Hence, the relationship between surface tension and cohesion is that Cohesion is directly proportional to surface tension.
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Which process is needed to create metamorphic rock? Pressure Deposition Erosion Weathering
Answer:
Pressure
Explanation:
Which of the following is used by plants
to attract pollinators?
A. ovary size
B. stamen length
C. sweet-tasting fruit
D. cellulose
Answer:
C. sweet-tasting fruit
Explanation:
Carbon based molecules are known as ... compounds.
Answer:
Carbon based molecules are known as organic compounds.
Extra's : organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements
1 point The best evidence for evolution comes from 1. biochemical evidence 2. natural selection 3. the fossil record 4. comparative anatomy 5. genetics 6. comparative embryology O 2 03 4 5 ON The id
Evolution is a long process that takes place over a very long period. It is often said to be gradual because it can take hundreds of generations to produce any noticeable change.
Fossil evidence, biochemical evidence, and comparative anatomy are some of the most compelling pieces of evidence for evolution. Genetics, natural selection, and comparative embryology are some of the others.In this context, the best evidence for evolution comes from the fossil record.
The fossil record gives us a glimpse into the distant past and shows us the evolution of life over time. We can see how different organisms have evolved and how they have adapted to changing environments. The fossil record also shows us how life has changed over time and how new species have emerged from existing ones.
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In terms of gene, chromosome, and DNA were put in order of size. what would be the order from smallest to biggest?
Answer:
According to the order from smallest to largest, the order will be: Nucleotide, Gene, DNA, Chromatin, Chromatid, Chromosome
Precipitation falls to the ground and eventually ends up in the ocean. Which
of the following is the most direct way for the water to get from the soil to the
ocean?
O A. By entering an open watershed
O B. By refracting
O C. By evaporating
O D. By recharging a closed aquifer
Answer:A.By entering an open watershed
Explanation:
(APEX)
Help!! Please! How does food and nutrients get into the bloodstream by Osmosis?
Answer:
The chyme travels into the small intestine (where osmosis takes place). The chyme has a higher concentration than the epithelial cells that line your intestines. in order to reach homeostasis, water moves into these cells through their semipermeable membranes, taking small nutrients with it.
Could someone pls help with my bio homework?
What are the by-products of the three energy systems (Anaerobic Alactic
Anaerobic Lactic, Aerobic Energy System) ?
The alactic anaerobic system, also known as the phosphagen system or ATP-CP system, represents an immediate source of energy for active muscle.
What are the by-products of the three energy systems?
Anaerobic alactic, energetic substrate used: phosphate-creatine;Anaerobic lactic acid, energetic substrate used: glucose; 3- Oxidative System (Mitochondria) Anaerobic Glycolysis System (Cytosol) Aerobic, energetic substrates used: glucose, fatty acids.
With this information, we can conclude that the alactic anaerobic system, also known as the phosphagen system or ATP-CP system, represents an immediate source of energy for active muscle.
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2. in metabolism, atp hydrolysis typically involves a) simple hydrolysis in which the released inorganic phosphate is not a reactant b) formation of a phospho-substrate intermediate c) an input of energy d) production of light energy e) none of the above
The correct answer is A) simple hydrolysis in which the released inorganic phosphate is not a reactant.
ATP hydrolysis is an important process in metabolism that releases energy for various cellular processes. It involves breaking down the high-energy phosphate bond of ATP to form ADP and inorganic phosphate. Simple hydrolysis means that water is added to the ATP molecule to break the bond without the involvement of any other reactant or intermediate. In this process, the released inorganic phosphate is not a reactant but a product.
B, Formation of a phospho-substrate intermediate, refers to a different type of reaction in which the phosphate group of ATP is transferred to a substrate to form a high-energy intermediate. C, an input of energy, is incorrect as ATP hydrolysis releases energy. D, production of light energy, is not related to ATP hydrolysis. Option E, none of the above, is incorrect as option A is the correct answer.
In summary, ATP hydrolysis involves simple hydrolysis in which the released inorganic phosphate is not a reactant.
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What is the function of the cytoskeleton?
It is a protein structure that helps give structure to the cell
It helps with cell reproduction
It helps with storing nutrients for the cells
All of the above
The cytoskeleton helps a cell maintain its shape and helps keep its internal continents in place and organized. It is also responsible for the locomotion of the cell.
So the simple answer to this question is: it is a protein structure that helps give structure to the cell.
Hope this helps!
18. Which of the following would be able to pass through the membrane the easiest ?
a. Small, hydrophobic substances
b. Small, polar substance
c. Molecules like sucrose and glucose
d Small, hydrophilic molecules
The one that will be able to pass through the membrane the easiest is small, hydrophilic molecules. The correct option is d.
What is lipid bilayer?A lipid bilayer is a polar membrane composed of two layers of lipid molecules. These membranes are flat sheets that surround all cells in a continuous barrier.
The lipid bilayer acts as a barrier, keeping ions, proteins, and other molecules where they belong and preventing them from diffusing into areas where they should not be.
A bilayer is made up of two sheets of phospholipid molecules, each with all of its molecules aligned in the same direction.
Because small, nonpolar molecules are hydrophobic, they can easily cross the plasma membrane's phospholipid bilayer.
Because polar molecules and ions are hydrophilic, they cannot easily cross the plasma membrane's hydrophobic portion.
Thus, the correct option is d.
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Earth’s solid inner core is surrounded by the hot, molten metal of which layer?
its the outer core but if u meant the outer core then its the mantel
At what point during mitosis has the nuclear membrane reformed?
at Telophase 14
I hope it help.
Answer:
Telophase
Explanation:
After the genetic material(chromosomes) is separated in anaphase new nuclear membranes are formed around the chromosomes.
Select all the correct answers.
The oceanic crust of one plate is colliding with the continental crust of another plate. Which of these events are likely to take
place as the two plates collide?
When an oceanic plate converges with a continental plate, the oceanic crust will always subduct under the continental crust; this is because oceanic crust is naturally denser. Convergent boundaries are commonly associated with larger earthquakes and higher volcanic activity.