3 years ago

What do the circled arrows in the image indicate?

Biology

1 answer:

Fudgin [204]3 years ago

8 0

Answer:

CO2 released to the atmosphere

Explanation:

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What three criteria’s are needed for members of a group to be all part of the same species

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Morphospecies, phylogenetic, and biological species concepts are used by scientists for classification.

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Explain how a mutation causing resistance to pyrethrins and pyrethroids would spread through a population of bed bugs that are b

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What is often referred to as the control center of the cell. It contains DNA and controls many of the cell's

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The answer is A, the nucleus.

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The offspring resulting from a cross between two organisms differing in one or more genes

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In other cases, each parent provides a different allele of a given gene, and the offspring is referred to as heterozygous ("hetero" meaning "different") for that allele.

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3 years ago

Gametes (SEX CELLS) have ... A. half the number of chromosomes found in the body cells B. twice the number of chromosomes found

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Answer:

$\boxed {\boxed {\sf A. \ Half \ the \ number \ of \ chromosomes \ found \ in \ the \ body \ cells}}$

Explanation:

Gametes are sex cells, such as the egg and sperm. They are used in sexual reproduction to produce offspring.

The sex cells are produced during meiosis. The DNA or genetic material is replicated, then the cells divide twice. After this, four haploid cells are produced with half of the genetic material. For example, human body cells have 46 chromosomes but sex cells have 23 chromosomes.

They contain half the genetic material for an important reason. During fertilization, an egg and a sperm fuse. Each one contributes half of the genetic material from the mother or father to create one complete set for the offspring.

Gametes have half the number of chromosomes in body cells and choice A is correct.

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