When the Cells Need More Oxygen, the Rate and Depth

question 83

True/False

When the cells need more oxygen, the rate and depth of breathing increase and the heart rate increases.

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Definitions:

Vascular

Refers to the tissues in plants and animals that are involved in the transport of fluids, such as blood in animals and sap in plants.

Meiosis

Type of nuclear division that reduces the chromosome number from 2n to n; daughter cells receive the haploid number of chromosomes in varied combinations; also called reduction division.

Spores

Reproductive cells produced by fungi, plants (such as ferns), and some microorganisms, capable of developing into a new individual without sexual fusion.

Gametophyte

A stage in the life cycle of plants and algae that is haploid and produces gametes for sexual reproduction.