Temperature and precipitation
Asexual reproduction is when you don't need another partner to reproduce like plants. Sexual reproduction is when you need another partner to reproduce like humans and animals.
A federal government is the type of government that combines aspects of both unitary and confederal government. The United States has a federal government.
The blood-brain barrier functions to regulate the movement of materials from the blood to the brain (option A).
<h3>What is the blood-brain barrier?</h3>
The blood-brain barrier is a structure in the central nervous system (CNS) that keeps various substances found in the bloodstream out of the brain while allowing in the substances essential to metabolic function, e.g. oxygen.
The blood-brain barrier serves as a protective barrier for the brain that prevents the entry of substances in the bloodstream that can cause brain damage.
Therefore, the blood-brain barrier functions to regulate the movement of materials from the blood to the brain.
Learn more about blood-brain barrier at: brainly.com/question/9643165
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Photosynthesis removes CO2 from the atmosphere and replaces it with O2.
