Which statement accurately describes the relationship between the brain and addiction?

a. all drugs act on dopamine synapses in the same way.

b. the brain reacts to excessive dopamine levels by increasing the number of dopamine receptors.

c. a higher amount of addictive chemicals are needed to get the same high when fewer receptors are present.

d. normal activities produce heightened responses once receptors are reduced.

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.

The table above shows five different types of chromosomal abnormalities that can occur during meiosis. they result in either an individual having too many or too few chromosomes in their genome. what is the most likely cause of these chromosomal abnormalities?