Q: Q: What are two nonliving things that all living things need for survival? A:

OPTIONS:
- sunlight
- calcium
- methane
- water and air

A: water and air

input: OPTIONS:
- deviation
- focal point
- regression
- estimation Now, answer this question: Q: A reference point is used in measurement to make what? A:
A:
output: estimation

Q: The fossil record shows that this type of event is followed by the evolution of new species to fill the habitats where old species lived? A:

OPTIONS:
- minor extinction
- moderate extinction
- formation extinction
- mass extinction

Answer: mass extinction

Problem: OPTIONS:
- controlling factor
- stumbling block
- variable
- limiting factor
Q: Q: What is the term for something that limits the growth or development of an organism, population, or process? A:
Answer: limiting factor

Problem:OPTIONS:
- chromosomes
- chloroplasts
- nuclei
- ribosomes

Q: What term is used to describe the cellular structures responsible for protein synthesis? A:
****
A: ribosomes

Problem:OPTIONS:
- the macula
- the iris
- the cornea
- the pupil

Q: What is the opening in the front of the eye? A:
****
A:
the pupil