Answer:
The cardiovascular system helps maintain homeostasis by continually supplying the central nervous system--the brain and spinal cord--with oxygen and glucose. Brain cells start dying after just one minute without oxygen. The brain is the control center for all of the body's homeostatic processes.
Answer:
single gene traits are generally not significantly influenced by the environment, whereas complex traits have a significant environmental component
Explanation:
Single gene traits that are controlled by a locus, that is two alleles of a trait controls the expression of a character. Single gene traits are said to be involved in Mendelian inheritance. These traits are not all significantly influenced by environmental factors. On the other hand, complex traits, such as height in humans, which is controlled by 10 or more allelic pairs, have been found to be significantly influenced by environmental components like diet. This explains why the expression of height in human population is widely varied, and when each individual’s height of a population is plotted on a graph, we would see a normal distribution curve with a bell curved shape.
B is correct since trees absorb CO2.
Answer:
because it reduces the number of chromosomes to half the normal number so that, when fusion of sperm and egg occurs, baby will have the correct number.
Explanation:
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Answer:
carbon dioxide and water (hydrogen dioxide)
Explanation:
the plant breaks both compounds down into their elements, puts the oxygen back into the atmosphere as waste, and uses the carbon and hydrogen to make glucose through phosynthesis through use of sunlight