I believe you mean legs. If you do, the answer you are looking for is: All spiders have eight legs. They also have two small appendages at the front that are modified legs; these are called pedipalps.
Answer: Catalyst. Any molecule that will increase the rate of a chemical reaction, does not participate directly in the reaction and therefore is reusable, and does not supply the energy for the reaction (heat or ATP does). Enzymes work on one reactant, called a. Substrate.
Explanation:
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Answer: True
Explanation:
It's true that a substrate binds to an enzyme's active site because of non-covalent interactions like the H-bond, ionic interactions, and hydrophobic bonds.
Answer:
The correct answer will be- variation
Explanation:
Natural selection is the process in which an organism becomes adaptable to its environment by changing the genotype which changes the phenotype of the organism. The phenotype trait is selected by the organisms and passed on to the generation to become permanent. Nature selects the fittest species to survive the environment.
Since the organism reproduces either through asexual or sexual mode in which sexual mode increases the chances of natural selection as sexual mode involves the mixing of genes from different parents which increases the chances of "variation" in the genotype thus phenotype.
Thus, variation is the correct answer.