Answer: a. Secondary
Explanation:
Once soil is already present all you need are animals to re establish the ecosystem
In a homogeneous mixture .....<span>b. all parts are evenly mixed..
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Answer:
The correct answer will be -they lay eggs
Explanation:
Monotremes are the animals which belong to the group of mammals. There are only five species of monotremes known today which are found in New Guinea and Australia.
The monotremes differ from other mammals which is that they lay eggs instead of giving birth to the young ones. This shows that these mammals are closely related to the reptiles and amphibians and are thus the primitive mammals.
Thus, they lay eggs is the correct answer.
Why are enzymes necessary for all biochemical reactions?<span>Therefore, the rate of most biochemical reactions must be increased by a catalyst. A catalyst is a chemical that speeds up chemical reactions. In organisms, catalysts are called enzymes. Like other catalysts, enzymes are not reactants in the reactions they control.
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