Answer: Racial classification
Explanation: Racial classification can be defined as the way humans are classified based on their physical and social traits which they have such as how they look, their skin color, hair texture, the native languages they speak.
Scientists used racial classification to learn how unique and different humans are.
A. knowledge of the enviroment.
if we cross XNXN(normal, non-carrier female) with XnY(color-blind male)
we get XNXn XNY XNXn and XNY
genotype ratio: XNXn:2 XNY:2
phenotype ratio:2 carrier females and 2 healthy males
The opportunistic has a longer lifespan than the equilibrium populations
When consumers breathe, carbon dioxide is released back into the environment. This breakdown of glucose and other complex organic molecules releases carbon dioxide, which is then recycled by producers.
<h3>How does carbon get moved across an ecosystem?</h3>
In the food chain, for instance, plants use photosynthesis to transfer carbon from the atmosphere into the biosphere. They make sugar molecules by chemically combining water's hydrogen and oxygen with carbon dioxide using energy from the sun.
Energy travels from one trophic level to the next when primary producers absorb energy from the sun to generate glucose, which is then consumed by primary consumers, who are then consumed by secondary consumers, and so on.
learn more about teritary consumers refer
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