Q: A desmosome is a cell structure that anchors the ends of what fibers together? Choices: - skeletal muscle - controllable muscle - smooth muscle - cardiac muscle A:
cardiac muscle

(Question)
Q: Dna encodes instructions for what kind of molecules? Choices: - acids - cells - fats - proteins A:
(Answer)
proteins

Ques: Q: Water pollution occurs when chemicals, sewage, trash, or heat enter what? Choices: - renewable resources - air resources - natural resources - water resources A:
Ans: water resources

(Q).
Q: Initial substances are called reactants, and the final substances are called what? Choices: - exports - imports - reactors - products A:
(A).
products

Ques:Q: Density and pressure of air decreases with what? Choices: - temperature - humidity - horizontal distance - altitude A:

Ans:altitude

Question: Q: What is the first step of the calvin cycle called? Choices: - dioxide fixation - carbon maturation - breath fixation - carbon fixation A:
Answer:
carbon fixation