Answer:
1. The process in which organisms find and colonize a near lifeless area.
2. They are different from each other because secondary supports life, as primary does not.
3. Pioneer species is a hardly classified species which establish themselves in a disrupted ecosystem and trigger the process of ecological succession.
4. Biotic factors support life and the aspects. Abiotic factors involve external life. They interact with each other when the abiotic provide for the biotic.
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Answer:
An air mass that is warm, moist, and usually unstable.
Explanation:
Answer:
The nucleus is a cell's central organelle, which contains the cell's DNA (Figure 3.6). The cytoplasm is composed of two parts, the cytosol and organelles. Cytosol, the jelly-like substance within the cell, provides the fluid medium necessary for biochemical reactions.
Explanation:
<span>The gland which signals other glands to secrete hormones is the pituitary gland.</span>
