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Aneli [31]
3 years ago
9

What is a truebreeding plannt

Biology
1 answer:
Sergeeva-Olga [200]3 years ago
7 0
<span><span>A plant that, when self-fertilized, only produces offspring with the same traits.</span></span>
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What is the predominant mode of asexual reproduction in a sponge?
LenKa [72]
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4 0
3 years ago
Based on this video, the definition for an Invasive Species is a ...
irinina [24]

Answer:

Option 2

Explanation:

I did not see the video referenced, but an invasive species is not always brought by people. Furthermore generally there are no limiting factors because it has no natural predators in the environment and often uses up all the resources in that particular environment. Hope this helps!

8 0
3 years ago
What would occur if cells did not have enzymes?
romanna [79]
If we dont have enzymes then we would become malnourished as our body wouldnt be able to absorb the nutrients. Enzymes work in digestion to break down the food we eat

8 0
3 years ago
Igneous rock can ____ to form metamorphic rock A)melt B)harden C)heat up D)weather
alexandr402 [8]

Heat & Pressure ( So I guess in this answer choices it's " Heat up" )

The reason it's not " melt " because if melting were to take place then that would make Magma, and magma isn't metamorphic rock.

6 0
3 years ago
Which of the following characteristics are true for an action potential?
pickupchik [31]

Answer:

I, II, III

Explanation:

A threshold stimulus is a stimulus that is capable to produce a response in excitable tissues such as neurons and muscle fibers. At threshold potential, the outward movement of K+ and inward movement of Na+ become equal to each other. When the potential exceeds the threshold potential, more and more Na+ enter the cell to depolarize it and to allow the opening of Na+ channels. Therefore, to fire an action potential, the threshold must be exceeded.

Conduction of action potential is all or none phenomenon which means that either it occurs or it does not occur. As an impulse is passed by each successive part of an exon, it enters the refractory period during which there is no conduction of nerve impulse. It ensures the one-way conduction of impulse from the cell body to the axon terminal only.

6 0
3 years ago
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