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Q: Which part of a neuron contains the nucleus and most of the major organelles? Read this paragraph and choose the correct option from the provided answers: Parts of a Neuron As you learned in the first section, the main part of a neuron is the cell body, which is also known as the soma (soma = "body"). The cell body contains the nucleus and most of the major organelles. But what makes neurons special is that they have many extensions of their cell membranes, which are generally referred to as processes. Neurons are usually described as having one, and only one, axona fiber that emerges from the cell body and projects to target cells. That single axon can branch repeatedly to communicate with many target cells. It is the axon that propagates the nerve impulse, which is communicated to one or more cells. The other processes of the neuron are dendrites, which receive information from other neurons at specialized areas of contact called synapses. The dendrites are usually highly branched processes, providing locations for other neurons to communicate with the cell body. Information flows through a neuron from the dendrites, across the cell body, and down the axon. This gives the neuron a polaritymeaning that information flows in this one direction. Figure 12.8 shows the relationship of these parts to one another. Choices: - organ body - simple body - retinal body - cell body A:
(Answer)
cell body

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Q: All three axes are established before the zygote begins to undergo what? Read this paragraph and choose the correct option from the provided answers: Choices: - cloning - birth - twinning - cleavage A:
(Answer)
cleavage

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Q: Some gametophytes develop underground and form mycorrhizal associations with what? Read this paragraph and choose the correct option from the provided answers: Lycophytes follow the pattern of alternation of generations seen in the bryophytes, except that the sporophyte is the major stage of the lifecycle. The gametophytes do not depend on the sporophyte for nutrients. Some gametophytes develop underground and form mycorrhizal associations with fungi. In club mosses, the sporophyte gives rise to sporophylls arranged in strobili, cone-like structures that give the class its name. Lycophytes can be homosporous or heterosporous. Choices: - protists - plants - animals - fungi A:
(Answer)
fungi