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Damm [24]
3 years ago
7

Infer: In which part of Earth's core do convection currents occur?

Biology
1 answer:
malfutka [58]3 years ago
8 0

Answer:

mantle

Explanation:

Convection currents in the Earth occur in the mantle. The core of the Earth is extremely hot, and material in the mantle close to the core is heated..

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The plasmodesmata in plants are functionally most similar to which animal cell junction?
morpeh [17]

Answer:

B.) Gap junction

Explanation:

Plasmodesmata (singular form: plasmodesma) are intercellular organelles found only in plant and algal cells. (The animal cell "equivalent" is called the gap junction.)

5 0
2 years ago
Which would least likely result from a chromosomal change?
GalinKa [24]
I am pretty sure that <span>the result which would least likely occur from a chromosomal change is being shown in the second option represented above : </span>B) no effect on the cell or organism. I choose this one because <span>chromosomes always affect every part of the body. Do hope you still need the answer because this one will definitely help you!</span>
3 0
3 years ago
Read 2 more answers
A scientist thinks that a certain chemical is a mutagen. She exposes plant cells to a large amount of this chemical in the labor
bekas [8.4K]

Answer:

The cells change after being exposed to the chemical, and this change is passed to the next generation of cells.

Explanation:

A mutation is any change, whether big or small, that occurs to the nucleotide sequence of a gene in a cell as caused by mistake during replication or induced by a mutation causing substance. These mutation-causing substances are called MUTAGEN.

A MUTAGEN is any substance that causes genetic mutation in an organism's cell. These changes in the nucleotide sequence can affect one or more phenotypic characteristics of the affected organism, which is also passed to offsprings because it is a genetic change.

Hence, a plant cell exposed to this mutagen will be induced to mutate.

Hence, the cells changing after being exposed to the chemical, which is also passed to the next generation of cells best provides explanation that the chemical is a MUTAGEN.

4 0
3 years ago
Nonliving part of the environment is
devlian [24]

Abiotic factors.

Hope this helps! :D

8 0
3 years ago
Read 2 more answers
The systems of the body work together and are dependent upon one another. Explain how another system, besides the skeletal syste
Nimfa-mama [501]

Active muscles demand huge amounts of oxygen, and the circulatory system works hard to provide it. Blood carries oxygen to the muscles. When the body is at rest, blood carries nutrients to the muscles so that they can repair and rebuild themselves. Blood also carries away the waste products that hard-working muscles produce, back out through the lungs to be filtered.

so they Circulatory system xx muscular system :)

5 0
4 years ago
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