<span>c. they secrete hormones that help control the ovarian cycle.
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Answer:
A. Those continents were once a part of one supercontinent.
Explanation:
This so called supercontinent is called Pangea, which existed during the late Paleozoic and early Mesozoic eras, and assembled approximately 335 million years ago, which began to break apart about 175 million years ago.
Answer: Synapse connects neurons and neurotransmitters are the chemicals that help in the communication of neurons.
The given statements can be completed as-
The synapse connects the axon of one neuron with the dendrite of another neuron to relay messages.
The cells release chemicals known as neurotransmitters ( such as acetylcholine) into the synaptic gaps to communicate with one another.
Neurotransmitter are the chemical messengers that carry chemical signal to the target neuron where it gets converted into electrical impulses. Synapse is a place or gap between the axon terminal of one neuron and the dendrite of another neuron.
Answer: A. False, it should read “If a point mutation occurs in a tumor suppressor gene it can become inactivated. This allows the rate of cell division to increase unregulated.”
Explanation: I already know this for a fact.
