I think the correct answer from the choices listed above is option B. Keratin is the protein in mammals which shows only a primary and secondary structure. Keratin is a fibrous protein forming the structural constituent of hair, feathers, hoofs, claws and many others.
1. They combine to form electrons
2. it's a compound because it will be able to cure a disease
Answer:
1. Kingdom plantae
2. Through the process of photosynthesis. It gets sunlight. It absorb carbon dioxide through its leaves. It absorbs water and nutrients through its roots.
3. They reproduce in two ways. First, sexually through the fusion of male and female gametes in the flower. Second, Asexually through stems, roots and leaves.
Explanation:
Answer:
No of groups studied
As All other factors will effect the result ofvthe experiment.
But no matter how many groups you take to study they will show the same result
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