Explanation:provitamin A is preformed vitamin A .. The best source of these are animal sources than plant sources.. Best sources include diary foods,, meat and fish.

7 0

2 years ago

Select the correct answer. David wants to improve the food shortage situation in his country. Which of these fields of biology s

Mrrafil [7]

I think it is going to be agriculture

3 0

2 years ago

How is the energy in glucose extracted for use in the cell? summarize the four steps of cellular respiration, including the inpu

Vanyuwa [196]

Step 1
Glucose enters glycolysis pathway and glycolysis yields pyruvate, then pyruvate undergoes processing.
step 2
Pyruvate processing ;releases acetylCOA which joins the citric acid cycle.
Step 3
The citric acid cycle yields 2ATP and CO2 and also releases NADH and FADH2 to electron transport chain and chemiosmosis.
Step 4
Chemiosmosis and electron transport chain yields 25 ATP molecules and H2O Oxygen enters electron transport chain and osmosis.

6 0

1 year ago

What are the basic cell structures that impacts diffusion?

maria [59]

I only know one for the first one, don't be mad, please.

1. I'm pretty sure one of them is membrane

2. A cell can die through infection, poisoning, overheating, or even lack of oxygen.

3. I think it depends on how fragile the membrane of the cell is.

I'm so so so sorry if these didn't help, I'm trying my best, lol.

5 0

2 years ago