Answer:
E. Does photosynthesis performed by elodea remove CO2 from the water? F. Does cellular respiration occur at a higher rate than photosynthesis in the tube with only elodea?Explanation:
The tubes were placed under a growth light and as the elodea is growing, it would need photosynthesis to provide food. The color changes will therefore allow the students to see the effect photosynthesis has on the CO2 in the water by checking to see if the BTB turns blue which would mean that CO2 was removed by photosynthesis.
The students will also be able to see which process occurs faster in the tube with only elodea because the dominant color would show if cellular respiration occurs faster than photosynthesis or if the case is the reverse. For instance, if respiration is occurring faster, there will be more CO2 which would turn the BTB towards yellow, if photosynthesis is faster the BTB will turn towards blue and if the rates are similar, the BTB will remain green.
7. The function of the human excretory system is to
0
A. break food into small molecules that the body can absorb.
O
B. dispose of wastes and control body fluid composition.
C. move materials from the environment into the body.
D. produce enzymes the body needs to break down food.
Answer:
B
Explanation:
It removes other waste from our body and keeps our blood clean
Population density is calculated by
Answer:
C.
Explanation:
To calculate the population density, you will divide the population by the size of the area. Thus, Population Density = Number of People/Land Area. The unit of land area should be square miles or square kilometers. You can use square feet or meters if you are finding the density of a smallish space.
Answer:
a on edge
Explanation:
dont trust c i got it 100%
please help.
what happens to a monomer once it is used to create a polymer?
A. the monomer can be reused once the polymer is deconstructed
B. the monomer is destroyed
C. The monomer is permanently part of the polymer
The monomer can be reused once the polymer is deconstructed. So, the correct option is (A).
What is Monomer?A monomer is defined as a molecule which can react with other monomer molecules to form a larger polymer chain or three-dimensional network in a process called polymerization.
These are described as atoms or small molecules which bond together to form more complex structures known as polymers. There are four main types of monomer which include sugars, amino acids, fatty acids, and nucleotides.
Monomers can also be reused again when the polymer is deconstructed.
Thus, the monomer can be reused once the polymer is deconstructed. So, the correct option is (A).
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Which of the following makes up the top layer of a soil profile?
Oorganic material from plants and animals
Ominerals and organic material
O solid rock layer
O inorganic materials
Answer:
I think its organic material from plants and animals
Explanation
Edge 2020
Answer:
that guy is correct.. on edge-nuity it's organic material...
Explanation:
Which type of energy causes the equator to be hotter than the north pole?
Answer: solar energy
Explanation:The amount of solar energy in a given area is greater at the equator than in an equal area at the poles, which is why the equator temperature is warmer than the polar temperatures.
Answer: solar energy
Explanation: I took the test
The image below shows __, which is a result of cohesion.
a
surface tension
b
low density solid
c
capillary action
d
high heat capacity
Why is meiosis cell division called reductional division?
Answer:
Meiosis is called reductional division because number of chromosomes and amount of DNA in daughter cells is reduced to half than that of parent cell.It is called equational division because number of chromosomes and amount of DNA in daughter cells remain equal to parent cells.
Explanation:
Hope this helps
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Karin is reading the information that came with a new medicine she has to take. One of the ingredients is lactose (C12H22O11). What can Karin conclude about lactose based on the formula? * 1
The group of choices associated with the question was not given, however, the correct options are :
Some people may be allergic to lactose.
Lactose has a melting point of about 203 degrees Celsius.
Lactose is a key ingredient in many medicines.
A lactose molecule contains 12 atoms of carbon.
Answer:
The correct answer is -A lactose molecule contains 12 atoms of carbon.
Explanation:
It is clear from the chemical formula of lactose that it has three component that presents in a specific amount to form this compound. There are 11 atoms of oxygen, 22 atoms of hydrogen, and 12 atoms of carbon present in the lactose.
From the formula, it is also clear that it is one of the carbohydrates (disaccharide) as the basic formula of carbohydrate is Cx(H2O)y.
What happens to carbon in plants when the plants die?
1. The carbon is not released; it is lost.
2. The carbon is released into the air.
3. The carbon will be released into the soil for use by the next generation.
4. The carbon is released into the soil, but it is not used again.
Answer:
The carbon dioxide is released into the air after the plant dies
Explanation:
spraying insects with a pesticide ddt causes some pesticide resistance in insect populations.The changes that occur in the insect population are related to a pattern in genetic inheritance. Repeated spraying kills many insects; however, more frequent spraying and higher concentrations fail to kill insects. In this environment, the spaying of insects appears to act as
SELECT ONE:
A. BIOLOGICAL FACTOR
B.GROWTH INHIBITOR
C.AN AGENT OF SELECTIVE PRESSURE
D. AN AGENT TO ELIMINATE OLD WEAK INSECTS
Answer:
D. AN AGENT TO ELIMINATE OLD WEAK INSECTS
Explanation
Because when older bugs get poisoned they have a less of a chance to survive because their already old and crippled.
But using cinnamon is a more effective way of killing bugs and ants and it does not harm children or other house hold animals that you may have.
GIVING BRAINLIEST FOR CORRECT ANSWER PLZ HURRY TIMED!!!
Which statements explain the relationship between photosynthesis and cellular respiration? Check all that apply.
The glucose that plants use for energy is made by animals in cellular respiration.
Glucose is a reactant in both photosynthesis and cellular respiration.
The oxygen released by photosynthesis is breathed in by animals to break down glucose.
Carbon dioxide is a product of both photosynthesis and cellular respiration.
The carbon dioxide released by animals is used to build glucose in photosynthesis.
Answer:
Explanation:
Aerobic respiration is a set of metabolic reactions that take place in the presence of oxygen, occurring in a cell to convert chemical energy into ATPs. Anaerobic respiration is a process of cellular respiration where the high energy electron acceptor is neither oxygen nor pyruvate derivatives.
HELP PLSSSSS PLS PLS PLS
Answer:
1- The polar section of a phospholipid is the part with the phosphate group. This is sometimes called the polar head of the molecule.
2- The phosphate group is the negatively-charged polar head, which is hydrophilic. The fatty acid chains are the uncharged, nonpolar tails, which are hydrophobic.
Explanation:
By 40-60 years after farm fields had been abandoned, the amount of herbaceous plants decreased. Give one reason why the amount of herbaceous plants decreased as the amount of trees increased.
Answer:
Explanation:
Herbaceous plant are plants that lack woody stem, they include mostly annual crop and perennial crop.
The reduction in the population of herbaceous plant over the years is due to competition. The competition intensity is usually high due to limited supply of resource and the woody plant out compete the herbaceous plants leading to a gradual decline in the population.
Competition intensity is usually high during dry season when herbaceous biomass and soil water content were at the lowest level at this time the herbaceous plant finds it difficult to thrive well with the limited resource while the woody plant utilizes the little resource and keeps on thriving. All this reduce herbaceous population after several years of the field been abandoned.
What is a vascular plant
Vascular plants are basically the plants which have vascular tissues. Vascular tissues are the conductive tissues which consist the xylem and the phloem which conduct water/minerals, food respectively. Most of the plants can be categorised as a vascular plant. :D
Step 4: Conduct research to support your claim. A) For each part of your claim, conduct research to provide two examples of scientific information that supports it
Answer:
Research for species is done by microscopic view. The micro organism like fungi and bacteria are difficult to be observed by naked eye.
Explanation:
The research process includes the detailed view of the properties of micro organism. Their way of living separates them from each other. Parasites used to live in the body of their victim.
please help please help
Answer:
It allows passage of particles into and out of the cell.
Explanation:
Which of the following describes the secondary structure of amino acids? (4 points)
A chain sequence of amino acids
Hydrophobic interactions between side chains
Disulfide bridges between side chains
Alpha helix coil held together by hydrogen bonding
Answer:
Alpha helix coil held together by hydrogen bonding
Explanation:
The primary structure of a protein is the linear chain of amino acids that form the polypeptide.
The secondary structure of a protein is the arrangements of adjacent amino acid residues in the chain. These structures are maintained by hydrogen bonds, and the major structures adopted by proteins are α-helices and β-sheets.
The tertiary structure of a protein is the 3D shape of the protein, determined by interactions between amino acid side chains
Finally, the quaternary structure refers to the fact that most proteins are made up of more than one amino acid chain. They interact with one another to form the final structure of the protein.
Answer:
A
Explanation:
It is asking for the primary structure which is the first form of the proteins. So it is just a long chain of amino acids.
Which of the following are grouped together to form chromosomes?
A.Traits
B.Genes
C.Cells
D.All the above
Answer: D) ALL THE ABOVE
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what is a natural method to prevent the spread of weevil in food stock?
Answer:
Prevent Grain Weevils
Inspect all grains upon purchase.
Freeze grains for at least one week to kill any eggs.
Buy grains in small quantities and eat within a reasonable time.
Store grains in tightly sealed glass, metal, or sturdy plastic containers (not bags).
Explanation:
Which kind of environmental change would a tornado be?
short-term, because it occurs very quickly
long-term, because it lasts a long time
short-term, because it affects only a small area
long-term, because they have been happening for millions of years
Answer:
short-term, because it happens fast please tell me if its right or wrong i will edit it :D
Explanation:
species of bacteria can evolve more quickly than species of mammals because bacteria have--
Answer:
higher rates of reproduction
and no back bones
Explanation:
What is the primary function of the light dependent reaction of photosynthesis
Answer:
The overall purpose of the light-dependent reactions is to convert light energy into chemical energy.
Hope this helps :)
Explanation:
The light dependent reaction of photosynthesis is the stage that has the function of converting light energy into stable chemical energy.
Photosynthesis as a chemical process occurs in two different stages: the light stage and the dark stage, so called because only the first is directly involved in the presence of sunlight.
During this phase, bioluminal reactions take place inside the plant, that is, the plant captures solar energy through chlorophyll and uses it to produce ATP and NADPH.Therefore, we can conclude that the light dependent reaction of photosynthesis is this biochemical stage of harnessing sunlight to obtain organic materials.
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Need help with this
Answer:
her arms are puffy , red and swollen
Explanation:
that is literally a sign :/
Does mitosis or meiosis occur more frequently in your body? Explain your answer
Answer:
Mitosis
Explanation:
Meiosis is the splitting of sex cells which happens during reproduction. Mitosis is the splitting of body cells in order to make more body cells. Mitosis is how your body grows, therefore it occurs more frequently because the body is not constantly reproducing.
In the human body, mitosis occurs more frequently than meiosis. Mitosis is a type of cell division that happens in somatic cells, which are non-reproductive cells.
It is responsible for growth, repair, and maintenance of tissues in the body. On the other hand, meiosis occurs only in reproductive cells, such as sperm and egg cells, and is involved in the formation of gametes for sexual reproduction.
Here is a step-by-step explanation:
1. Mitosis: Mitosis is a process where a single cell divides into two identical daughter cells. It consists of several stages: interphase, prophase, metaphase, anaphase, and telophase. During interphase, the cell grows, replicates its DNA, and prepares for division.
Then, in prophase, the DNA condenses into chromosomes, and the nuclear membrane breaks down. In metaphase, the chromosomes align in the middle of the cell. Next, in anaphase, the chromosomes separate and move to opposite ends of the cell. Finally, in telophase, two nuclei form, and the cell divides into two daughter cells.
2. Meiosis: Meiosis is a specialized type of cell division that produces gametes with half the number of chromosomes as the parent cell. It involves two rounds of division, resulting in the formation of four haploid cells. Meiosis consists of two main stages: meiosis I and meiosis II.
In meiosis I, the homologous chromosomes pair up, exchange genetic material in a process called crossing over, and then separate, reducing the chromosome number by half. Meiosis II is similar to mitosis, as the sister chromatids separate and move to opposite ends of the cell. The end result is the formation of four genetically unique haploid cells.
Although both mitosis and meiosis are essential for different purposes, mitosis occurs more frequently in the body because it is involved in the growth, repair, and maintenance of tissues.
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HELP PLS AND THANK YOU IM GETTING TIMED BRAINLIEST!!!
ANSWER THIS AND GET 30 POINTS!!!
Do you think hand span is a simple Mendelian trait like pea plant flower color?
Answer:
yes
Explanation:
What are the products of the hydrolysis reaction?
Hydrolysis yields the breakdown of larger molecules into smaller one. For eg., Proteins upon hydrolysis produce amino acids.
What is hydrolysis?Hydrolysis is a type of chemical reaction in which water molecule is utilized to break the larger molecule into smaller component.
The chemical bonds (one or more) present between the molecule is cleaved through water in such a way one compound receives the H+ ion while the other receives the OH- ion.
In hydrolysis reaction water is the main reactant while in dehydrogenation reactions, water is formed as a by-product.
Hydrolysis is commonly exhibited by digestive enzymes. The complex food particles are broken into simple and absorbable units through hydrolysis.
The macromolecules such as carbohydrates, fats and proteins are broken into simple sugars, amino acids, fatty acid and glycerol by hydrolysis.
Hydrolysis is also an important event in biodegradation. It thus keeps the pollution in check.
Therefore, hydrolysis is an important reaction in biochemistry.
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How oxygen is obtained by cells and How cells obtain nutrients
Thanks.
Answer:
When you breathe your body cells uses oxygen from the environment to get energy and when you eat any food, your body cells use oxygen to break down food as nutrients.Describe how traits are inherited through traits sexual Reproductions
WILL MARK AND 5 STARS
Answer: sexual reproduction is the union of male and female gametes to form a fertilized egg, or zygote. The resulting offspring inherit one half of their traits from each parent. The process where haploid sex cells are created from diploid parents is called meiosis, and it occurs only in the reproductive organs.
Explanation:
i have advanced so this is what i got right
Answer: In sexually reproducing organisms, each parent contributes half of the genes acquired (at random) by the offspring. Individuals have two of each chromosome and hence two alleles of each gene, one acquired from each parent. These versions may be identical or may differ from each other.
11. Explain the importance of having a cell's digestive enzymes enclosed inside lysosomes?
Answer:
The low pH of the lysosome is maintained by membrane proteins that pump protons (H + ions ) from the cytosol into the lysosome. ... Although it may seem dangerous for cells to contain enzymes that can digest most biological molecules, the contents of the cell are doubly protected from the digestive enzymes of the lysosome.
let me know if this help
Explanation:
Membrane proteins that pump protons from the cytosol into the lysosome keep the pH of the lysosome at a low level. The contents of the cell are doubly shielded from the lysosome's digestive enzymes, despite the fact that it may seem unsafe for cells to possess enzymes that can break down the majority of biological components.
What are membrane proteins?A membrane protein is defined as a protein molecule that is joined to or connected to an organelle's or cell's membrane.
It reveal surfaces that are optimal for binding to or incorporating into membranes.
Membrane proteins can be categorized into three groups based on their functions: integral, peripheral, and lipid-anchored.
The functions of membrane proteins are:
Membrane proteins mediate actions that are essential for biological cells to thrive. Receptors facilitate communication between the cell and its surroundings, membrane-embedded enzymes catalyze chemical reactions, and transporters that are embedded in membranes carry ions and bigger solutes across membranes.Thus, membrane proteins that pump protons from the cytosol into the lysosome keep the pH of the lysosome at a low level. The contents of the cell are doubly shielded from the lysosome's digestive enzymes, despite the fact that it may seem unsafe for cells to possess enzymes that can break down the majority of biological components.
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