The answer is true hope this helps
Answer:
Because sperm production is sensitive to heat if they get too hot, cells in the tubules will not develop into sperm in temperature above 37. This is why testes are out side the body where they are cooler.
Answer:
1. Nerve impulse
2. Neurons
Explanation:
Neurotransmitters are compounds with low molecular weight. They are secreted by axon terminals of the neurons. The released neurotransmitters then bind to the receptors located on next neuron or on the surface of muscle cell.
The function of neurotransmitters is to carry the nerve impulse from presynaptic neuron to the postsynaptic neuron or from neurons to the effector organs such as muscles and glands.
For example, neurotransmitters are released into the synaptic cleft to transmit the nerve impulse between neurons.
Answer:
The given statement is false.
It is because the greenhouse effect is a natural process which takes place in the environment by its own.
The greenhouse gases trap the heat energy coming from the sun and the energy which is radiated from the earth and helps in keeping the earth warm.
Natural processes such as volcanic eruptions, cellular respiration, forest fires, transpiration, decomposition et cetera produce greenhouse gases such as carbon dioxide, water vapors, methane et cetera.
The activities of humans increase the effects of the greenhouse effect however, they are not the sole reasons for this natural effect.
