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vfiekz [6]
3 years ago
12

In the United States, which is responsible for ensuring the safety of the country's drinking water?

Biology
2 answers:
REY [17]3 years ago
8 0

Answer:

b

Explanation:

it makes da most sense and imma smart boi duh

kkurt [141]3 years ago
6 0

Answer:

B. Food and Drug Administration (FDA)

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Which lipoprotein is made inside the small intestinal cells and transports dietary fats through the circulatory system to the li
wariber [46]

Answer:

Chylomicrons

Explanation:

These are big triglyceride-rich particles produced by the colon that help transport dietary triglycerides and cholesterol to peripheral tissues and the liver.

8 0
2 years ago
What are characteristics of allosteric enzymes? A. They tend to have a hyperbolic curve of vs. [S]. B. They may have binding sit
nika2105 [10]

Answer:

Option (B), (D) and (E).

Explanation:

Allosteric enzymes may be defined as the enzymes that an change their  conformation ensemble after binding to an effector molecule. They play important role in cell signalling and metabolic pathways.

Allosteric enzymes do not obey Michaelis- Menten kinetics. They have two binding sites regulatory site and active site. They contain multiple subunit and exist in more active and less active form depending on the type of substrate and regulatory molecule.

Thus, the correct answer is option (B), (D) and (E).

6 0
4 years ago
why do plant cells occasionally switch from noncyclic electron flow (nef) to cyclic electron flow (cef)?
Blizzard [7]

Creating a proton gradient across the thylakoid membrane in higher plants uses cyclic electron flow (CEF), which primarily serves two purposes: (1) producing ATP and balancing the ATP/NADPH energy budget; and (2) defending photosystems I and II from photoinhibition.

ATP and NADPH are produced by noncyclic electron transport. The single product of cyclic electron transport was ATP. Both steps are required by a plant to produce the required amount of ATP for the Calvin Cycle. The electrons are released by photosystem I and then brought back into the system during cyclic photophosphorylation. However, in non-cyclic photophosphorylation, the electrons that the photosystems emit do not come back.

learn more about photosystems here;

brainly.com/question/13034934

#SPJ4

6 0
2 years ago
Please help its due in 2 minutes
son4ous [18]

Answer:

B

Explanation:

8 0
3 years ago
Why is spotify still streaming when i have cell data off.
fgiga [73]
I really don’t know that’s really confusing... do you still have Internet or do you have self internet turned on?
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