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zhannawk [14.2K]
3 years ago
15

4. Which of the following statements BEST explains why you can hear noises

Biology
2 answers:
Leya [2.2K]3 years ago
8 0
A: There are fewer other noises at night.
Please give brainliest :) Hope this helps
Rus_ich [418]3 years ago
3 0

i guess its answer is option D

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3. When oxygen in a person's blood decreases, the body will respond by...
Svetradugi [14.3K]
Decrease breathing rate hope it helps
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When comparing the hemoglobin genes, more than 100 amino acids are identical between all eight species. Why do you think this is
valentina_108 [34]
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3 0
2 years ago
A) Identify and describe the four levels of protein structure.
fgiga [73]
The four levels of protein structure are distinguished from one another by the degree of complexity in the polypeptide chain. A single protein molecule may contain one or more of the protein structure types: primary, secondary, tertiary, and quaternary structure. 1. Primary Structure: describes the unique order in which amino acids are linked together to form a protein.

2. Secondary Structure: refers to the coiling or folding of a polypeptide chain that gives the protein its 3-D shape. There are two types of secondary structures observed in proteins. One type is the alpha (α) helix structure. This structure resembles a coiled spring and is secured by hydrogen bonding in the polypeptide chain. The second type of secondary structure in proteins is the beta (β) pleated sheet. This structure appears to be folded or pleated and is held together by hydrogen bonding between polypeptide units of the folded chain that lie adjacent to one another

3. Tertiary Structure: refers to the comprehensive 3-D structure of the polypeptide chain of a protein.

4. Quaternary Structure: is the structure of a protein macromolecule formed by interactions between multiple polypeptide chains. Each polypeptide chain is referred to as a subunit. Proteins with quaternary structure may consist of more than one of the same type of protein subunit.
6 0
3 years ago
Warm-up: Describe an adaptation animals will have if they lived in the ocean.
ss7ja [257]

Answer:

some of them are gills, blowholes, fins, streamlined bodies, filter feeding, and camouflage

Explanation:

8 0
3 years ago
PLEASE HELP ME ON BOTH QUESTIONS ASAP!!!!! GIVING 13 POINTS AWAY!!!!!!
yawa3891 [41]

Answer:

the awnser for the first question i think is D because a funnel is used to clean water of contaminants.

Explanation:

the awnser for the second question is A.

3 0
3 years ago
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