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-BARSIC- [3]
3 years ago
13

When the biceps brachii contracts, the lower arm extends. a. True b. False?

Biology
1 answer:
Rama09 [41]3 years ago
4 0

The answer is FALSE. The biceps muscle is located in the inner portion of the upper arm while the triceps muscle is located at the outer portion of the arm. To straighten your arm again, you relax the biceps brachii and contract the triceps brachii. Contracting the biceps makes the elbows bend







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An excess of greenhouse gases is warming the oceans. Which of the following describes an effect of excess greenhouse gases?
Feliz [49]

Answer:

Melting of glaciers and ice sheets will cause coastlines to shrink and increase flooding.

5 0
2 years ago
An mRNA sequence reads: GAA/GCU/AUA/CUA/UGU. What would the effect on the amino acid be if the second codon read GCA instead, an
Murrr4er [49]

Answer:

D) Silent mutation on second codon, third amino acid changed from ILE to ASN.

Explanation:

Silent mutations are usually point mutation where you change one nucleotide. Since, the nucleotide changed is the third position, it does not affect the protein being manufactured (it will still put the amino acid Ala) [look up the codon redundancy on youtub.e to understand how awesome nature is!]

On the other hand, the other mutation introduced is Missense mutation where a different Amino acid is added due to change in codon (goes from ILE to ASN).

6 0
3 years ago
What chemical involved in the processes of photosynthesis has the greatest number of atoms per molecule? F carbon dioxide G gluc
SOVA2 [1]

Answer: The correct answer is Glucose.

The chemical formula of the given molecules are-

Carbon dioxide is CO₂, which means that it contains 2 oxygen and 1 carbon atom and therefore 3 atoms per molecule.

Glucose- C₆H₁₂O₆, which means that it contains 6 carbon, 12 hydrogen, and 6 oxygen atoms. Thus, total atoms are 24 per molecule.

Oxygen- O₂, which means that it contains 2 atoms of oxygen.

Water- H₂O, which means that it contains 2 hydrogen and 1 oxygen atom and therefore 3 atoms per molecule.

Thus, glucose has greatest number of atoms per molecule.

5 0
3 years ago
A researcher examined the response of dandelions to herbivory by rabbits. She finds that in a greenhouse with no rabbits, there
vazorg [7]

Answer:

b.

Explanation:

Based on the information provided within the question it can be said that from this info the researcher can conclude that Dandelion seed number is a constitutive defensive response to rabbit herbivory. This is mainly due to the fact that Dandelions that have been eaten by the rabbits have produced more seeds, meaning that the Dandelions defense mechanism produces more seeds when attacked in order to prevent the flower's extinction.

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How does a horn form?
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A horn results when glaciers erode three or more aretes, usually forming a sharp edged peak
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3 years ago
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