Answer:
Carbon enters the atmosphere as carbon dioxide from respiration and combustion. Carbon dioxide is absorbed by producers to make glucose in photosynthesis. ... Decomposers break down the dead organisms and return the carbon in their bodies to the atmosphere as carbon dioxide by respiration.
Explanation:
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Solution:
A basic amino acid which is a constituent of most proteins. It is an essential nutrient in the diet of vertebrates.
Proteins: the macromolecule and the monomer: Proteins are about 50% of the dry weight of most cells, and are the most complex of the macromolecules we will talk about, because there are 20 different monomers or building blocks, called amino acids.
Thus this is the required answer.
Non polar molecule move across a membrane through simple diffusion, when moving up their concentration gradient. Simple diffusion involves movement of molecules through a membrane without the help of integral membrane protein. These molecules are driven by the force of diffusion. This is different from facilitated diffusion where molecules only move with the aid of integral protein in the membrane.
Answer:
Fleeing crop failure, land and job shortages, rising taxes, and famine,are reasons people left their home counties. Many came to the U. S. because it was perceived as the land of economic opportunity.
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Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution.
