Q: What do vectors possess that scalars do not? A:
OPTIONS:
- height and polarity
- direction and texture
- magnitude and weight
- magnitude and direction
magnitude and direction

Q: In humans, what period lasts from the ninth week of development until birth? A:
OPTIONS:
- third trimester
- plasma period
- development period
- fetal period

Answer: fetal period

Question: Q: A new species is said to have evolved if separated members of a species evolve genetic differences that prevent what from occurring with the original members?? A:
OPTIONS:
- extinction
- evolution
- re-population
- interbreeding
Answer: interbreeding

input with options: Q: In a model of an atom, the level with the least energy is the one closest to what? A:
OPTIONS:
- center
- surface
- protons
- nucleus
output: nucleus

Q: Q: What is the term for individuals of a species that live in a particular habitat? A:

OPTIONS:
- family
- ecosystem
- biosphere
- population

A: population

Q: Nitrogen and sulfur oxides form what type of rain? A:
OPTIONS:
- common rain
- toxic rain
- heavy rain
- acid rain
acid rain