1. MUSCLE TISSUE : allows the heart to contract
2. CONNECTIVE TISSUE : insulates the body
3. EPITHELIAL TISSUE : forms the outer, most protective layer of the body
4. NERVOUS TISSUE : allows the brain to respond to stimuli. Others include sensory input, integration, control of muscles and gland, homeostasis, & mental activity.
(I answered another question just like this two minutes ago, not sure if it was the same person :)
The first one: A mutation may cause a change that codes for the same amino acid. It is not possible (or likely) that the transcription will skip over the mutation. Mutations, especially large frameshifts, are important. It does not matter how much proteins are replicated. A mutation in the DNA sequence will affect the mRNA.
Answer:
the answer is D. lack of genetic variation
Explanation:
The pay raise was a stimulus for production