Answer:
chromatin
Explanation:
its DNA and proteins that form chromosomes in the nucleus I'm pretty sure
Answer:
Chromatin
Explanation:
The nucleus has three parts the nuclear membrane, chromatin, and nucleolus.
Based on the graph which of the following could be used to increase the reaction rate beyond point C
Where is most of the water from your food absorbed?
Question 8 options:
esophagus
large intestine
small intestine
stomach
Explain why the blue color of starch-iodine complex disappears upon heating?
Answer: Starch is a long polymer molecule in one shape of a coil. The iodine molecules goes inside of the coil and this is what makes it turn blue/black. Iodine is a diatomic element with the formula, I2.
Explanation:
Answer:
This is because the compound of iodine and starch is unstable, but if you put the test tube in cold water, a dark blue sediment will form once more. When starch is heated to boiling point, it begins to break down, and the chains of amyloses break, thus, forming short chains of dextrins, so the colour starts to change.
Explanation:
Which of these statements is correct about material 1 and 2?
The half-lives of Material 1 and Material 2 are same.
The half-life of Material 2 is one-fourth of the half-life of Material 1.
The half-life of Material 2 is 5 years more than the half-life of Material 1.
The half-life of Material 1 is 5 years more than the half-life of Material 2.
Answer:
D. The half-life of Material 1 is 5 years more than the half-life of Material 2.
Explanation:
As you can see in the graphs for material 1 to get to 50% it takes 30 years. for material 2 it takes 25 years to get to 50%. Therefor the halflife of material 1 is 5 years more than material 2
Do both animal and plant cells have mitochondria? Why or why not?(1 point)
Yes; they both need mitochondria to convert radiant energy into chemical energy.
No; plants use chloroplasts the way animals use mitochondria.
No; plants don’t perform any processes for which mitochondria would be used.
Yes; they both need mitochondria for cellular respiration.
Both animal and plant cells have mitochondria - Yes; they both need mitochondria for cellular respiration.
Cellular respirationIt is a process in which respiratory substrates such as starch, glucose, fats, and proteins are broken down to release energy. This energy is then trapped for the synthesis of ATP to release carbon dioxide.
Cellular respiration takes place in mitochondria, a cell organelle present in all eukaryotic organisms including plants and animals. This organelle is called as powerhouse of the cell as it produces energy for the cell.
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Does the addition of either the salt solution or distilled water affect the cell wall of plant cells?
Answer:
hypotonic= cell grows
hypertonic=cell shrink
Explanation:
Which of the following statements best describes the replication of DNA?
a. The double helix unzips the hydrogen bonds between bases and like bases pair up (G with G, C with C, etc.)
b. The double helix unzips at the phosphate bonds and new nucleotides pair with the appropriate sugars.
c. The double helix unzips the hydrogen bonds between bases and new DNA nucleotides pair with the complementary bases in the old strands.
d. The double helix unzips and RNA forms base pairs with the complimentary strand of DNA.
Answer:
By hydrogen bonds between nucleotide bases
Explanation:
A DNA molecule is a double-stranded molecule that is informing one structure two strands of nucleotide are involved.
The double-stranded molecule backbone is composed of the phosphate and sugar group and the inside of the backbone are presents the nitrogenous bases. The nitrogenous bases are of four types which are: adenine, cytosine, guanine, and thymine.
These nitrogenous bases are attached according to the Chargaff rule that is adenine binds thymine and cytosine binds guanine. These bases bind with the help of the hydrogen bond as 2 hydrogens participate between adenine and thymine and 3 hydrogens participate between cytosine and guanine.
Thus, hydrogen bonds between nucleotide bases is correct.
What are the differences between the transport of materials in xylem and phloem ? I need long answer, pls help me guys.
Xylem tissue helps in the transport of water and minerals. Phloem tissue helps in the transport of food. Transport in xylem requires physical forces such as transpiration pull. Transport of food in phloem requires energy in the form of ATP.
what is the biological term of the Close Association between two organisms where one or both benefit
Answer:
Symbiosis is the biological term of the close association between two organisms where one or both benefit.
List and describe the 3 roles of DNA
Please it’s worth 40 points I promise I will follow you and mark brainleist. Explain how a mouse uses its senses to act when it is in danger. Describe how the mouse heart and lungs work together when it smells a predator. Explain how the model can show what happens to the mouths breathing when it smells a predator this is a test please help
When the twitching pink nose of a mouse detects danger, the animal has to act fast. Fortunately, a predator rapidly triggers the release of stress hormones in the mouse and prompts behaviors that reduce the risk of it becoming the predator’s latest snack. helping explain how the brain translates danger signals detected by the nose into a physiological response. The research offers clues to the larger puzzle of how animals, including humans, perceive and respond to fear.
A table showing examples of organisms from different groups is provide. According to this information, the house cat is most
A. Wolf
b. Mocking bird
c. Butterfly
D. Lynx
please help
I will give brain list and 5 stars and 10 points for the best answer
I see answer as a link I will report you
if you do this I know why you're just doing it just to get points
Answer:
Lynx
Explanation:
House cats and lynx are part of the same genus
In the image attached, the bottom of the pyramid is a more broad group, the top of the pyramid is a more specific group. In this case, cats are part of the kingdom of animalia, and cats are part of the species of domestica
Which of the following best illustrates evidence from comparative anatomy that
supports biological evolution?
A:Different Species that have body structures with multiple functions
B: Different Species that have similar bone patterns
C: Similar species that have body structures with different functions
D:Similar species that have different bone patterns
Answer:
The answer is Different Species that have similar bone patterns. I am pretty sure.
Explanation:
The biological evolution is evident from different species having similar bone structure. Thus, option B is correct.
The evolution is a process of inheritable changes in the organism over the time. The species develops from the ancestral have similar structures.
What is the evidence of Comparative anatomy?The comparative anatomy is the analysis of the pattern of evolution. The anatomy is dived with organisms belonging to same genus but have different species.
The organism of different species and same genus have similar structure, with the evolution of the functions. Thus, the evolution is evident with the organism of different species with same structure are belonged to same genus.
Hence, the biological evolution is evident from different species having similar bone structure. Thus, option B is correct.
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how many times does a child have to be vaccinated against tuberculosis
Answer:
It's one time or maybe ttwo
Answer: I believe one or twice, I don't really know though so sorry my friend.
Explanation:
Explain why the parents cell and both daughter cells must have the same number of chromosomes
Answer:
It's occur in mitosis.
Explanation:
This occur mainly in Mitosis.
In mitosis the parent cell divides into two daughter cells and its then replicates it chromosomes number or dna in the daughter cells. Therefore each daughter cells carries the same number of chromosome as the parent , therefore they are genetically identical as the parent cells.
Therefore, they most have the same number of chromosomes so that they can be genetically identical as the parent cell
Daughter mitotic cells must have the same genetic information as parent cells to carry out normal cellular functions. Moreover, mitosis also ensures the correct segregation of homologous chromosomes in successive cell divisions.
Mitosis is a type of cell division in which one cell divides to produce two daughter cells that are genetically identical to the parental cell. This type of division occurs in all types of cells in the body, with the exception of gametic cells located in the ovary (egg) and the testicles(spermatic cells). In diploid (2n) cells that have two sets of homologous chromosomes, mitosis results in the formation of two 2n cells with identical genetic content.Thus, mitosis ensures that the number of chromosomes in each cell division is constant, thereby daughter cells will have the same number of chromosomes as the parent cell. This maintenance of the chromosome number is fundamental to grow and self-maintain the body.Chromosome imbalance due to errors during mitosis (i.e., error in segregation of homologous chromosomes) may lead to the disruption of large numbers of dosage-sensitive, developmentally essential genes and therefore result in disease/lethal phenotypes.Conversely, meiosis is a reductional type of cell division that reduces the number of chromosomes in the parent cell by half in order to four gamete haploid (n) cells. During fertilization, male and female n gametes fuse to produce a diploid cell (i.e., the zygote) that develops into an adult, thereby perpetuating the correct number of pairs of chromosomes in the cells of any given species.
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30. The entire molecule shown in the diagram below is the building block for RNA and is called a(n)
Phosphate
group
Nitrogen
bose
Suga
O pyrimidine.
O amino acid.
O polysaccharide.
O nucleotide.
Answer:
Nitrogen Base/Nucleotide
Carbon monoxide (CO) is an odorless, colorless, and tasteless gas that is toxic in high enough concentrations. It can be a by-product of burning fossil fuels. CO binds irreversibly to the protein (hemoglobin) that transports O2 throughout your bloodstream. As you are exposed to high amounts of CO over a period of time your available hemoglobin becomes unable to bind to O2 because it is bound to CO. In your own words, explain what would happen to cellular respiration and what overall effect this would have on the organism.
Answer:
Carbon monoxide has much more affinity for the hemoglobin than the affinity of the oxygen to the hemoglobin almost 300 times more, which allows the Hb to bind with carbon monoxide irreversibly. Due to this, the small quantity of CO can also reduce the ability of oxygen transport of the hemoglobin.
Longer exposure of CO to the cHb will lead to reducing oxygen release by the Hb that is bound to oxygen in this T state which causes less oxygen availability. In aerobic oxidation mechanisms like oxidative phosphorylation will eventually stop. It will be shifted to anaerobic cellular respiration. The net production of ATP drastically reduced due to anaerobic glycolysis. Cells will eventually start to die causing the death of an organism.
What form of nitrogen is most abundant on earth?
Answer:
Dinitrogen is the most common form. It makes up 78 percent of the atmosphere but cannot be used by plants. It is taken into the soil by bacteria, some algae, lightning, and other means.
Explanation:
The barred owl has been moving into the habitat of the spotted owl. This could lead to a reduction in the spotted owl population if what?
Answer: If there is competition for food and nesting areas.
Explanation: Barred owls and spotted owls are well known as rivals. Barred owls are known to be aggressive towards spotted owls and are both bigger and more aggressive than them.
A(n) _______ is a well-tested concept that explains a wide range of observations.
Answer:
scientific theory is the answer
type of nutrition shown by all fungi
Fungi cannot produce their own food like plants can, nor can they consume it like animals can. Instead, fungi get their nutrition by absorbing it from their surroundings.
What is fungi ?Eukaryotic creatures known as fungi include yeasts, molds, and mushrooms as well as other microbes. These organisms fall under the category of fungus. The creatures that make up the Kingdom Fungi are pervasive and have a cell wall. They fall under the category of heterotrophs among living things.
Both varieties of fungi emit digestive enzymes into the nutrient surface they are growing on in order to feed. Proteins and carbohydrates are broken down by the enzymes and then absorbed through the walls of the hyphae.
All fungi are heterotrophic, which means they draw their energy from other living things. Like animals, fungi draw energy from live or dead organisms through the bonds of organic substances like sugar and protein.
Thus, Fungi cannot produce their own food like plants can, nor can they consume it like animals can.
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A marathon runner is running a race. During the race the marathon runners heart rate and breathing increases. Which of the following explains why the marathon runners' body is responding in this way?
Answer:
Warmer temperatures increase your heart rate. In addition to pumping more blood to the muscles, your heart also transports more blood to the skin in order to cool it. Increased demand causes your heart to beat faster -- anywhere from 20 to 40 beats per minute higher than normal.
Explanation:
Hope this helped. =)
The type of evolution that produced species P and H from species B:
A. divergent evolution
B. sequential evolution
C. phyletic gradualism
D. punctuated equilibrium
14 Select the correct answer from each drop-down menu. Hunting and poaching are responsible for the decline of many animal species. To control hunting and poaching, conservationists try to protect animals by_______
ralse endangered species in to protect them from these threats. Conservations also raise endangered species in _______
to protect them from these threats
(awnser 1)
introducing new species
passing laws
using water purification treatments
(awnser 2)
ecosystems with low diversity
natural habitats
protected wildlife sanctuaries
Answer:
first,, passing laws
second ,, protected wildlife sanctuaries
Explanation:
I passed my exam by choosing this Answers
SO I HOPE YOU CAN GET THE MARK
Answer:
Your question is worded a bit off but I tried my best to understand, let me know if this isn't right.
1.
answer for blank: passing laws
why?: conservationists try to protect animals from hunters and poachers by passing laws such as permitting hunting in certain areas, requiring a hunting license, limiting how much hunting you can do, protecting certain species (not allow them to be killed), and having specified hunting seasons.
2.answer for blank: protected wildlife sanctuaries
why?: conservationists raise endangered species in wildlife sanctuaries so the species can repopulate and is protected from different problems, hunting, environmental issues, etc.
hope this helps :)
Energy is the capacity to do work.
True
False
_________________________________
question 2.
Green plants use energy from sunlight in a process called respiration.
True
False
_______________________________
Question 3.
Animals and plants rely on each other in a process called the carbon cycle.
True
False
Answer:
All true (sorry if I'm wrong )
Answer:
Question 1: True
Question 2: False
Question 3: True
Explanation:
Question 1: Organism's use and consume energy (work energy) every single day to get through what they need to do.
Question 2: Green plant's using energy from sunlight is refered to as photosynthesis not respiration. Respiration is the need to get rid of carbon dioxide gas aka breathing.
Question 3: Carbon cycle is the process where carbon compounds are interchanged among the biosphere, geosphere, pedosphere, hydrosphere, and atmosphere of the earth.
1. Carbon & sunlight present in the atmosphere is absorbed by plants for photosynthesis.
2. These plants are then consumed by animals and carbon gets bioaccumulated into their bodies.
3. These animals and plants eventually die, and upon decomposing, carbon is released back into the atmosphere.
4. Some of the carbon that is not released back into the atmosphere eventually become fossil fuels.
5. These fossil fuels are then used for man-made activities, which pumps more carbon back into the atmosphere.
You see the relationship here? So yes, Animals and plants rely on eachother in the process refered to as the carbon cycle.
Which series orders organisms from those with the greatest amount of energy available to them to
those with the least amount of energy available to them?
secondary consumer, primary consumer, producer
producer, secondary consumer, primary consumer
primary consumer, secondary consumer, producer
producer, primary consumer, secondary consumer
Answer:
producer, primary consumer, secondary consumer
HELP I DONT UNDERSTAND
who is in charge in canada
Answer:
Justin Trudeau
Explanation:
Deputy Prime Minister of Canada
Explain 2 ways that humans are decreasing the carrying capacity of earth
Animals get their energy by eating plants an animals. A living thing that needs to eat to obtain energy is called a?
Animals get their energy by eating plants an animal. A living thing that needs to eat to obtain energy is called a heterotroph.
Energy is defined as the property of matter that allows it to perform work or function.
Heterotrophs are organisms that obtain their energy by consuming other living things, such as plants or animals. They play an important role in the food chain, as they consume other living things and transfer energy up the chain.
For example: A herbivore (an animal that eats plants) is a heterotroph that obtains energy from the plants it consumes.
Therefore, heterotroph is a living thing that needs to eat to obtain energy.
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