A neuron sends a signal toward another neuron along its _____.
A. dendrites
B. cell body
C. axon
D. ion channels
Ans: C. axon
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Insulin affects the ____
a. secretion of saliva b. storage of proteins c. secretion of pancreatic juices d. metabolism of sugar e. utilization of fat reserves
The biome with the fewest seasonal changes is the
A. temperate deciduous forest. B. grassland. C. tropical rain forest. D. boreal coniferous forest.
Scientists study microorganisms on Earth today to search for life forms elsewhere, as well as to explore the origins of life on Earth. These microorganisms that are studied are referred to as ________.
A. extirpated B. extant C. existing D. extinct
Imagine a diploid sexually reproducing organism, Diploidus sexualis, that contains three pairs of chromosomes. This organism is unusual in that no recombination between homologous chromosomes occurs during meiosis
A. Assuming that the chromosomes are distributed independently during meiosis, how many different types of sperm or egg cells can a single individual of this species produce? B. What is the likelihood that two siblings of this species will be genetically identical? You can assume that the homologous chromosomes of each parent are different from one another and from their counterparts in the other parent.