BIOLOGY HIGH SCHOOL

Your three blood cell types have different sizes, shapes, and functions. Yet they all started out alike. Within each cell of your body there are ___________, which give the instructions for cell processes. These instructions include the differentiation of your blood cells. A). centromeres B). chromosomes C). karyotypes D). mitochondria

Answers

Answer 1
Answer: I think the correct answer from the choices listed above is option B.  Within each cell of your body there are chromosomes which give the instructions for cell processes. These instructions include the differentiation of your blood cells. Hope this answers the question. Have a nice day.
Answer 2
Answer:

b is     the corecct answer    

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Convergent evolution suggests different organisms evolved _____ due to _____. similarly; different environments differently; different environments differently; similar environments similarly; similar environments
Can the negative transcription factor be used more than once?

Why is it difficult to reduce human population growth

Answers

because people are always growing and being born.
because a lot of people fall in love and so forth

The characteristics of an organism that help it to survive in a given environment are called adaptations, is this true or false?

Answers

Answer:

Answer is Below

Explanation:

To scientists, an adaptation is any characteristic that helps an organism survive or reproduce. Adaptations can be physical as well as behavioral. Most adaptations happen slowly—they are traits that are inherited over many generations. Examples of traits include the size and shape of a bird's beak.

Which statement concerning osmosis and active transport is NOT correct?A: Both endocytosis and active transport require cell energy.
B: Osmosis requires cell energy while active transport does not.
C: is crossed out
D: Diffusion of gases and other small molecules requires no energy on part of the cell.

Answers

The correct answer for the question that is being presented above is this one: "B: Osmosis requires cell energy while active transport does not." The statement concerning osmosis and active transport that is NOT correct is that osmosis requires cell energy while active transport does not.

Which animal uses its skin for respiration? A. pelican B. lion C. toad D. mackerel

Answers


I think it's C. toad
It's definitely a toad they have interesting lungs

A scientific argument will be considered invalid if the evidence supporting that argument is based ona. inconsistent data.
b. independent data.
c. unlimited results.
d. controlled results.

Answers

I believe the answer to this is (B) independent data. Independent data can be obtained in an uncontrolled environment and can also be biased. Scientists depend upon each other to test each others data and results, but this isn't always the case with independent data and therefor the credibility is reduced. 

The reason the other answers are incorrect is that unlimited and controlled results do not affect the validity of research, and inconsistent data means just that....that it is inconsistent and most likely requires more research or testing, but isn't necessarily wrong or invalid.

Answer:

B

Explanation:

A researcher uses several procedures to separate a rock sample into different chemicals. A mass of 50 grams of one chemical is produced. If this chemical cannot be separated into other chemicals, then it is BEST described as Select one:
a. a compound.
b. a mixture.
c. a solution.
d. an element.

Answers

If a chemical can no longer be separated into other chemicals, it can be said that it is d. an element. This is because elements are the purest substances out there. Rocks are mixtures that are made of inerts and various minerals which are compounds. Compounds are then composed of elements. 
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