3 The graphs show the reaction rate for an enzyme across a range of temperatures and pH.
Enzyme Reaction Rates
Rate of Reaction
inn
n
0
8
10
12
10 20 30 40
Temperature (°C)
Based on these data, this enzyme functions best at what temperature and pH?
A Temperature of 27°C and a pH of 4
B Temperature of 37°C and a pH of 6
C Temperature of 40°C and a pH of 8
D Temperature of 50°C and a pH of 10
which tissue provides support for rhubarb
Answer:
I think the answer is sclerenchyma tissue
A population of frogs in a pond began with 67 individuals. Over one year, the population changed to 53.
Which are two possible reasons for the change within the frog population?
emigration or increase in death rate
emigration or increase in birth rate
immigration or decrease in death rate
immigration or increase in birth rate
PLZ HURRYYYY 20 POINTS
Answer:
A. emigration or increase in death rate
Explanation:
i just took the test and got it rigt lol
The two possible reasons for the change within frog population is emigration or increase in the death rate. Thus, the correct option is A.
What factors affect the population?The major factors which affect the population of a species are birth rate, death rate, and migration of the species.
Birth rate is the number of individuals born in a population in a particular time period. Birth rate adds more individuals to a population.
Death rate is the number of individuals die in a population in a particular time period. Death rate decreases the population number.
Immigration is the number of individuals which enter a population.
Emigration is the number of individuals which migrate out of a population.
Therefore, the correct option is A.
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Every living thing is made up of one or more _____
Answer:
cells is the correct answer
Describe the differences and similarities between mitosis and binary fission.
Answer:
Binary fission is a method of asexual reproduction which single-celled organisms, usually prokaryotes, use to create a copy of themselves. Another term for the process is cellular cloning. Mitosis is cell division that results in two identical daughter cells and is primarily used for growth of an organism.
Explanation:
Binary fission has been known as method of asexual reproduction which single-celled organisms, usually prokaryotes, use to create a copy of themselves. Another term for the process is cellular cloning.
What is mitosis?Mitosis is cell division that results in two identical daughter cells and is primarily used for growth of an organism.Chromosomes are generally seen below a mild microscope best for the duration of the metaphase of molecular division.
The chromosomes are separated by a structure called the mitotic spindle. A chromosome is a lengthy DNA molecule with component or all of the genetic material of an organism. In maximum chromosomes the very lengthy skinny DNA fibers are lined with packaging proteins; in eukaryotic cells the maximum vital of those proteins are the histones.
These proteins, aided by chaperone proteins, bind to and condense the DNA molecule to keep its integrity. These chromosomes show a complicated third-dimensional structure, which performs a large position in transcriptional regulation. Chromosomes are generally seen below a mild microscope best for the duration of the metaphase of molecular division.
Therefore, Binary fission has been known as method of asexual reproduction which single-celled organisms, usually prokaryotes, use to create a copy of themselves. Another term for the process is cellular cloning.
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An ionic bond is formed as the result of a
Answer:
as a result of an atom, typically a metal, losing an electron, and becomes a positive ion or cation
Choose all the answers that apply.
The cell wall _____.
A.) is thick and rigid
B.) is made of cellulose
C.) does not allow the transport of chemicals
D.) is only present in animal cells
E.) supports and protects the cell
Answer:
The cell wall is thick and rigid, made of cellulose, and supports and protects the cell.
Which of the following correctly differentiates between the science in the time of Aristotle and science in the time of Galileo?
a) In Galileo's time, science was more like philosophy, whereas in Aristotle's time, it involved objective, empirical test.
b) In Aristotle's time, science was more like philosophy, whereas in Galileo's time, it involved objective, empirical test.
c) In Galileo's time, science was practiced only by great thinkers, whereas in Aristotle's time, it could be practiced by anyone.
d) In Aristotle's time, science was practiced only by great thinkers, whereas in Galileo's time, it could be practiced by anyone.
Answer:
the answer is b i believe:)
Explanation:
hope this helps love:))
A student is conducting an investigation to find out which food his dog likes best. Which is the dependent variable in his investigation
Answer:
the dependent vaiable would be the dog. the independent would be the type of food you are using. the independent vaiable is something you can change and you can not change the dog.
What type of mutation would result (nonsense, missense, silent,
Frame-Shift)
Answer:
Nonsense missense silent
Which of the following is a central idea of cell theory? (5 points)
All living things are made of at least two cells.
O Cells cannot live alone as single organisms.
O All living things have five or more types of cells.
Cells are the basic unit of structure and function in living things.
animals store most of their excess energy reserves as_____,and this is explained because______.
3. Which of the following parts of the human body is most complex?
A.
heart
B.
kidney
C.
white blood cell
D.
central nervous system
]
In these chemical compounds, C is for carbon, O is for oxygen, N is for nitrogen, and K is for potassium.
Which chemical compound is most likely inorganic?
O H₂O
OCH1
Answer:
the firt one.
Explanation:
it lacks the thing that makes organic things.
What are the three steps scientists take to evaluate a scientific explanation?
Make an observation.
Ask a question.
Form a hypothesis, or testable explanation.
Make a prediction based on the hypothesis.
Test the prediction.
Iterate: use the results to make new hypotheses or predictions.
Why are ion channels necessary to transport ions into or out of a cell?
Answer:
Ions carry electric charges and are not soluble in the lipid bilayer of the cell membrane.
Explanation:
I found it on google lol
Ions are too large molecules to diffuse through the cell membrane hence require some proteins to facilitate their transport. Ions channels helps in transporting the ions through the cell membrane and the flow of current through the membrane.
What are ion channels?
Ion channels are the type of transport proteins which are present in the cell membrane that facilitates the movement of ions through the membrane. Cell membrane is selectively permeable in nature and thus does not allow many molecules to transport through it.
Ion channels facilitates the passive movement of ions across the cell membrane and are essential for cell survival. Ion-channels helps in elucidating the structure-function mechanisms of the proteins present in the membrane. Ion channels help in creating ion gradient and moving charge through the membrane.
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What happens when self-determination mechanisms break down?
Answer:
When self-determination mechanisms break down it mistakes self-tissue as foreign agents and pathogens. This results is Auto-Immune disease.
HOPE THIS HELPS!
When the self-determination mechanisms break down, the body misinterprets its own tissues as foreign antigens, which activates the autoimmune mechanisms to destroy the body's own cells, mistaking them for foreign factors, this happens mainly in mantle autoimmune diseases.
Autoimmune diseases are a group of diseases in which tissue damage is caused by a humoral or cell-mediated immune response to a person's own antigens.
What are antigens ?In immunology, an antigen (Ag) is a molecule or molecular structure or any foreign particle or pollen grain that can bind to a specific antibody or T-cell receptor. The presence of antigens in the body can trigger an immune response. The term antigen originally referred to a substance that is a generator of antibodies. Antigens can be proteins, peptides (chains of amino acids), polysaccharides (chains of monosaccharides/simple sugars), lipids or nucleic acids. Antigens are recognized by antigen receptors, including antibodies and T-cell receptors.
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Consider the following events that take place when rip
currents occur.
Which list shows the order of events in the productie
rip currents?
A. Waves travel to the beach.
B. Waves are trapped by the sandbars.
C. Waves reach the shore and go back to the ocean.
D. Waves speed up and flow between the sandbars.
E. Waves are broken by the sandbars.
O A, B, C, D, E
O A, D, C, B, E
O A, E, C, B, D
O A, E, C, D,B
Answer:
Its C, I took the quiz.Explanation:
Sorry this is lateAnswer:
c
Explanation:
which one of the followin is not an organic compound
There is no option/choice to choose
Which of the following processes allows the cells of an
organism to use carbon from the environment?
A mitosis
B fertilization
C transpiration
D photosynthesis
Toddlers and preschoolers may nap:
On beds, mats, or cots.
On beds.
In cribs.
On nap mats.
On cots.
Answer: mats and cots well at least in school at home i would see them sleeping in beds
carbon has three naturally occurring isotopes: carbon 12, carbon 13, carbon-14 which of these statement are true about carbon and its isotopes
i honestly do not know but my guess is they are different types of carbon used for different things
Explanation:
What organelle would you not find in a plant cell? Chloroplasts,centrioles,central vacuole,or cell wall?
Answer:
Centrioles
Explanation:
If we look at ths other options Chloroplast and Cell Wall are both needed for a plant to survive and function. So we automatically know that it's going to be there so those aren't an option. We know that both animal and plant cells have a vacuole but plant cells have larger ones so we know that's not an answer. Leaving us with the only other possible answer left, Centrioles.
Answer:
Hey!
Your answer is CENTRIOLES
Explanation:
We know that Plants have a CELL WALL (shape), a CENTRAL VACUOLE (water storage etc) and CHLOROPLASTS (photosynthesis)
BUT Centrioles don't form parts of the "components" of the plant cell...
I HOPE THIS HELPED YOU!Carrie is conducting an experiment on a solution. The solution’s initial pH is 10. Then, as Carrie gradually adds Compound X into the solution, the pH decreases to 5. Which is the most likely identity of Compound X? *
Answer:
Compound X must be an acid
Explanation:
Acids have a lower pH than alkaline solutions. When you add an acid to a solution, the pH drops, as has happened here. If the pH did not change, we would assume compound X was neutral. If the pH increased, we would assume compound X was even more alkaline than pH 10.
help !!!!!!!!!!!!!!!! Ik the answer doe hehe
Help guys I need this ASAP
Answer:
Probably A
Explanation:
ahaha<3 still more questions luv
Answer:
organism, the leopard frog is an organism made up of other tissues and organs.
A potassium ion (K+) would most likely bond with
isolation occurs when two species occupy different habitats within the same geographical range.
Question:
_____ isolation occurs when two species occupy different habitats within the same geographical range.
Answer:
Habitat
Explanation:
Habitat isolation occurs when individuals in two populations are separated geographically. For example by a river or a mountain range. These organisms are much less likely to interact with each other and attempt to reproduce.
Habitat isolation is a barrier to gene flow (mixing of genes in two populations) and is a mechanism of speciation.
Fats,waxes, oils and steroids are all examples of which macromolecule
Answer:
Fats, waxes, oils and steroids are all examples of macromolecule " lipids "