Gonads are sex organs that produce gametes. Male gonads are the testes, which produce sperm and male sex hormones. Female gonads are the ovaries, which produce eggs (ova) and female sex hormones.
Answer:
involve calcium voltage-gated channels
Explanation:
Passive transport is a movement ofbiochemicals and other atomic or molecularsubstances across cell membranes without need of energy input. Unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy. The rate of passive transport depends on thepermeability of the cell membrane, which, in turn, depends on the organization and characteristics of the membrane lipids andproteins. The four main kinds of passive transport are simple diffusion, facilitated diffusion, filtration and osmosis.
The formation of the Hawaiian Islands.
Explanation:
A modern process that is believed to be similar to the way crusts formed before the advent of plate tectonics about million of years ago is the formation of the Hawaiian Islands.
The Hawaiian Island is a series of volcanic Island which forms as result of volcanic activities on the oceanic plate.
- Hawaiian Islands forms from a hotspot that supplies the ocean floor with sufficient magma as it rides.
- This is similar to the volcanic activities that initially sculpted the surface of the earth.
- During the early history of the earth, our very hot and restless planet poured out lava to the surface through which the crust formed.
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Sea floor spreading brainly.com/question/9912731
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