Q: What kind of charge do electrons have? Choices: - effective - unusual - positive - negative A:
negative

Q: Bryophyta is the formal taxonomic name for the phylum that consists solely of what? Choices: - trees - grasses - lichens - mosses A:
mosses

Q: Q: What happens to the volume of a gas as the kelvin temperature increases? Choices: - it decreases - it drops - it continues - it increases A:
A: it increases

Question: Q: What are commonly used to control insect pests, but can have harmful effects on the environment? Choices: - toxins - fertilizers - Herbicides - insecticides A:
Answer: insecticides

*Question*
Q: Cells must also be able to separate their relatively stable interior from what? Choices: - their habitat - predators - competition and chaos - the external environment A:
**Answer**
the external environment

Q: Q: What happens to the density of air as the altitude decreases? Choices: - multiplies - remains the same - increases - decreases A:
A: decreases