Q: What is the nervous tissue in the brain and in the rest of the nervous system made up of? Choices: - electrons - plastic - ions - neurons A:
neurons

(Question)
Q: A reptile's what doesn't generate enough energy to keep their body temperature stable? Choices: - respiration - tissue - skin - metabolism A:
(Answer)
metabolism

Ques: Q: Food is broken into smaller particles by mastication, a process involving action by what structures? Choices: - cilia - proteins - tonsils - teeth A:
Ans: teeth

(Q).
Q: Cancer involves what changes that modify cell-cycle control and alter the growth rate or progression of the cell through the cell cycle? Choices: - deletions - enhancements - stabilization - mutations A:
(A).
mutations

Ques:Q: Some species of fish carry their fertilized eggs in their mouth until they hatch; this is called what? Choices: - internal reproduction - spawning - schooling - mouth brooding A:

Ans:mouth brooding

Ques:Q: Some 96% of the dry mass consists of organic compounds produced by what? Choices: - erosion - electrolysis - reproduction - photosynthesis A:

Ans:
photosynthesis