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Galina-37 [17]
3 years ago
10

HELPPP

Biology
2 answers:
Alinara [238K]3 years ago
8 0
The answer to this is A
melomori [17]3 years ago
5 0
I believe the answer is <span>B) All living organisms consist of one or more cells.
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3. Paul's travels between the United States and Africa have been shocking because of the unexpected contrasts and similarities b
lana [24]

Answer:

In general, it is possible to affirm that in areas where there is malnutrition there are high deficits in all the essential vitamins for humans. A characteristic poor diet in these countries occasionally lacks vitamins and with this malnutrition. However, the reports mainly focus on deficits of vitamin A and D because there are more investigations. Vitamins are essential substances for the body and its function and cannot be synthesized by the same body but must be ingested from food. Vitamin deficiency is considered serious because it causes blindness and even death.

3 0
3 years ago
When NADH passes its electrons into the Electron Transport System, NADH is chemically:
erik [133]

Answer:

Option D, oxidized

Explanation:

The NADH gets oxidised when it passes its electrons into the Electron Transport System

Oxidization is a process in which one element or compound loses its electron to other chemical element or compound thereby itself getting oxidised and reducing the other one (the one who gains the electron).

Here in the electron transport system, the NADH loses or donates its electron to the Electron Transport System thus chemically it gets oxidized.

Hence, option D is correct

8 0
3 years ago
What is the role of bacteria in nitrogen fixation?
Phantasy [73]
I don’t know how to explain it but this might help
7 0
3 years ago
In sedimentary rock the oldest fossils would be expected to be found
eduard

Answer:

At the bottom of the sequence

Explanation:

According to the "principle of superposition of strata", the oldest rocks are formed at the bottom of sedimentary rock sequences.

The oldest rock layer would contain the the oldest fossil. Weathering, erosion, transportation and deposition would bring all sediments which includes rock materials and remains of living organisms to the basin where they would be lithified to form sedimentary rocks. This makes the oldest fossil to be at the bottom of the sequence. As time progresses, the fossil sequence would continue to accumulate and young upwards as the strata becomes relatively younger. Also, we know that fossils succeed one another in a definite manner.

This why relative dating of rocks can be possible.

3 0
3 years ago
Name the blood vessels that carry blood to and from the upper and lower parts of the body
bagirrra123 [75]
Superior vena cava- upper body inferior vena cava

lower body- bother drain into the right atrium
6 0
3 years ago
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