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Stella [2.4K]
3 years ago
5

How are the electrons in the PS II system replaced?

Biology
1 answer:
dimaraw [331]3 years ago
6 0

Answer: Photosystem I obtains replacement electrons from the electron transport chain. ATP provides the energy and NADPH provides the hydrogen atoms needed to drive the subsequent photosynthetic dark reaction, or Calvin cycle.

Explanation:

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Vaccines cure disease<br> O True<br> O False
anyanavicka [17]

Answer: False The vaccines help to prevent them and sometimes cure them.

3 0
3 years ago
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Which statement should be categorized only in the aerobic section of the Venn diagram?
Juliette [100K]
The statement that is true only for aerobic respiration is that aerobic respiration B. produces water<span>. The products of aerobic respiration are obtained after the complete breakdown of the substrate. This degree of substrate breakdown is not achieved in anaerobic respiration; therefore, it does not produce water.</span>
8 0
3 years ago
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In two or more complete sentences explain how to balance the chemical equation, KClO3 ⟶ KCl + O2 and include all steps.
Basile [38]
First of all you have to make both sides of the equation equal

KClO3 -------- KCL + O2

this is the way i would do it first

K - 1                K - 1
Cl - 1               Cl - 1
O - 3                O-2   From this we can see that the oxygen of both don't equal

So than from this we would need to find the common factor of the oxygen which is 6. So we would multiply 3 by 2 to get 6 as well as 2 by 3 to get 6.
The equation will now look like
K - 1                         K - 1
Cl - 1                        Cl - 1
O - 3 (2) = 6             O - 2 (3) = 6

so the final answere:

KCl2O3 --------- KCl + 3O2
5 0
4 years ago
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Imagine yourself walking from your car, bus stop, or dorm to your first class. Your ability to form such a picture in your mind
Natali [406]

The question is incomplete as it does not have the options which are:

a. the STM recency effect.

b. delayed response coding.

c. the phonological loop.

d. the visuospatial sketch pad.

Answer:

The visuospatial sketch pad.

Explanation:

Working memory is a part of short term memory which is related to the recall and use of the information in the middle of another activity.

visuospatial sketch pad was proposed by Graham Hitch and Alan Baddeley in 1974 and considered the pad as a component of Working memory.

The sketchpad is held the information which is collected during the initial processing and is later saved as long term memory. The pad collects the information related to calculation, physical environment, visualization and many other activities which are later recalled.

Thus, the selected option is the correct answer.

8 0
3 years ago
What are the differences between flatworms and sponges
Free_Kalibri [48]
First of, they are in two different phylum. Flat worms are in the planarian phylum while, Porifera is the sponges phylum. Sponge has no organs, and can reproduce asexually. Many flat worms are parasites while no sponges are. Another thing is sponges have no symmetry while flat worms have bilateral symmetry. Hmmm what else... on yes flat worms have one body opening while, i not 100% sure sponges have two.
7 0
3 years ago
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