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aleksandrvk [35]
3 years ago
6

Which of the following is the best definition of an atom?

Biology
2 answers:
netineya [11]3 years ago
7 0
The answer to this is D. ❤️
storchak [24]3 years ago
5 0

Answer: The basic unit of matter

Explanation:

An atom is the smallest unit of an element or any matter that can ever exist and still retain the properties of that matter. So, since matter could exist as gases, liquids or solids - atoms serves as the basic unit of matter.

Furthermore, an atom is neither a positively charged nor a negatively charged particle rather it is neutral (with no charge).

As well, it is a cell that is regarded as the basic unit of all living things, not an atom

Thus, an atom is best described as the basic unit of matter whether living or non-living.

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What blood vessel is a tributary of the hepatic portal vein?
inysia [295]

According to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.

<h3>What is the hepatic portal vein?</h3>

It is a blood vessel that carries deoxygenated blood from the digestive organs and the spleen to the liver.

The linear vein is one of the branches of the celiac trunk that supplies the spleen and gives off branches to the stomach and pancreas.

Therefore, we can conclude that according to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.

Learn more about the hepatic portal vein here: brainly.com/question/15511202

#SPJ12

7 0
1 year ago
What keeps the cell membrane from collapsing
maw [93]
According to science writer Clare Smith for SeattlePi, the cell membrane<span> is kept from</span>collapsing<span> by its phospholipid bilayer, maintenance of the correct temperature, a cytoskeleton and </span>cell<span> junctions. These are necessary because the </span>cell membrane<span> is one of the most crucial components of a </span>cell<span>. Hope it helped!</span>
4 0
3 years ago
Which chemical is LEAST persistent in
dalvyx [7]

Answer:

D. DDT

Explanation:

DDT is highly persistent in the environment means that it break down very slowly in the environment. The half-life for DDT is from 2 to 15 years. Half-life is the time needed for the degradation of half of the compound. Persistent bio-accumulative toxic substances (PBTs) are chemicals that break down slowly in the environment and its accumulation in living organisms are toxic. Some PBTs are dispersed through air currents while some uses other environmental pathways, resulting in contamination of regions far from their points of origin.

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Blood supply to an arm is cut off. Blood in the arm is sampled after
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Answer:

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Explanation:

6 0
2 years ago
Which of the following is a characteristic of the second stage with a demographic transition
Montano1993 [528]
My Answer: The death rate begins to fall, but birth rates remain high for a time.
Why?: Many of our countries are in Stage 2, that is why the government is concerned about our overpopulation.
Hope I helped! :D

5 0
3 years ago
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