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Musya8 [376]
3 years ago
11

Please asnwer A and B

Biology
1 answer:
icang [17]3 years ago
8 0

Pulmonary artery carry deoxygenated blood while are there arteries carry oxygenated blood.

pulmonary vein carries oxygenated blood while the other veins carry deoxygenated blood

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The ocean absorbs carbon dioxide directly from the atmosphere. How does CO2 absorption affect the ocean?
Rudiy27
Ocean plants absorb co2 just like trees do. Any co2 that’s not fixed will mess up the chemistry of the waters
4 0
4 years ago
Why is scientific knowledge more reliable than other types of knowledge?
RUDIKE [14]

Answer:

D. Because science only uses facts that are proven 100% true through the use of  variables.

Explanation:

All the knowledge we read is science books are not merely some observed facts but the result of a systematic scientific methodology through which facts are tested. Science only gives us that knowledge as facts which is  proven 100% true through the use of  variables.For example: if a scientist has studied the effect of salt stress on the growth of plants and he got the results in form of graphs which show that growth of salt treated plants in very less than normal plants. Then he needs to draw conclusion after consulting relevant previous experiments and say that salt stress hinders growth and why? with reasonable logic.

Variables are the things hat he changes like environmental conditions in previous example to see that in changed conditions plant is showing changed behavior. This way a scientist strengthens his results. Therefore, we can say that whatever knowledge we get through science is proven 100% true through the use of  variables.

Hope it helps!

8 0
3 years ago
PLEASE PLEASE PLEASE HELP ME IF YOU CAN!!!!!1!!!!!!!!!!!!
tankabanditka [31]

Explanation:

Compare and contrast a frameshift mutation and a single nucleotide substitution mutation in a DNA sequence encoding a protein. How many nucleotides would be inserted or deleted in each? How many amino acids in the protein sequence would be altered in each?

5 0
3 years ago
What is the molar mass of Br2 in grams
Anni [7]

Answer:

159.808 g/mol

Explanation:

Br itself is 79.904 g/mol. So multiply it by two.

6 0
2 years ago
What is the basic concept used to justify the building of phylogenetic trees
Anna71 [15]
A phylogenetic tree,<span> or </span>evolutionary tree,<span> is a branching </span>diagram<span> or "</span>tree<span>" showing the inferred </span>evolutionary<span> relationships among various biological </span>species<span> or other entities </span>based upon similarities and differences in their physical or genetic characteristics. The taxa joined together in the tree are implied to have descended from a common ancestor<span>.</span><span />
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3 years ago
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