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dmitriy555 [2]
3 years ago
9

Can someone please help me on # 4?

Biology
1 answer:
Natali [406]3 years ago
8 0

Answer:

the answer is B

Explanation:

i took this class last year

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How does interphase prepare a cell to divivde?
Ira Lisetskai [31]
The interphase prepares the cell to divide by enlarging the cell so that when it does divide, there will be space for the nucleus (if it applies to the cell) and the organelles. It will allow the cell to be able to function and later divide on its own. It replicates DNA so that the two future daughter cells will have an even number of chromosomes to remain the cell type that it's parent was.

Hope this helped!
5 0
3 years ago
When a species is made up of different smaller groups, each of those smaller groups is known as a _____.
Lemur [1.5K]
The correct answer is that when a species is made up of different smaller groups, each of those smaller groups is known as a variety.
7 0
3 years ago
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What is the effect on the O2 affinity of hemoglobin? An increase in CO from 1.0 parts per million(ppm) in a normal indoor atmosp
grin007 [14]

Answer:

It increases haemoglobin's affinity.

Explanation:

When CO binds to one heme molecule, the haemoglobin molecule becomes in a relaxed state and oxygen can bind so very easily.

The problem is not in the uptake of oxygen, it's with its delivery. The affinity for oxygen increases so much such that it becomes impossible to release and deliver the oxygen to tissues.

5 0
3 years ago
Help me yall im failing :)
olasank [31]

Sequence for the movement of electrons during the light dependent reaction

Explanation:

1.These reactions occur within specialised membrane discs within the chloroplast called thylakoids and involve three steps: Excitation of photosystems by light energy. Production of ATP via an electron transport chain. Reduction of NADP+ and the photolysis of water.

2.The cyclic light-dependent reactions occur only when the sole photosystem being used is photosystem I. Photosystem I excites electrons which then cycle from the transport protein, ferredoxin (Fd), to the cytochrome complex, b6f, to another transport protein, plastocyanin (Pc), and back to photosystem

3.Light-dependent reaction. In photosynthesis, the light-dependent reaction uses light energy from the sun to split water (photolysis). ... Water, when broken, makes oxygen, hydrogen, and electrons. These electrons move through structures in chloroplasts and by chemiosmosis, make ATP

4.The two products of the light-dependent reactions of photosystem are ATP and NADPH. The movement of high energy electrons releases the free energy that is needed to produce these molecules. The ATP and NADPH are used in the light-independent reactions to make sugar.

8 0
4 years ago
2. Give ONE possible reason, biotic or abiotic, why the population decreased in 1990
klemol [59]

Answer:

availability of resources.

Explanation:

Availability of resources is abiotic factor which is responsible for the decrease in population in 1990 because when the population reaches its carrying capacity so the organisms compete with each other and due to limited resources such as food etc the decrease occurs in population. Infection is also occurs when there is high population due to which death occurs and population of organism decreases.

3 0
3 years ago
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