What was the purpose of the vinegar in the third trial?

1. test the effect of raising pH on enzyme action

2. test the effect of lowering pH on enzyme action

3. serve as a control

4. served no purpose

Which phrase describes a volcano that is not expected to erupt again? O quiet volcano extinct volcano dormant volcano explosive volcano

The Asian long-horned beetle (ALB) hails from East Asia and is an extremely destructive pest of many species of trees. It was discovered in the US in 1996 and has established populations in NY, IL, NJ, and MA.

The venus fly trap is different from most other green plants because it

The students in Ms. Hill's science class were investigating the properties of water. Juan dipped a finger in a beaker of water; Sally dipped her finger in a beaker of alcohol.

Earth's tectonic plates A. are constantly in motion. B. move only once. C. move only up and down. D. do not move.

Which explanation describes an advantage of sexual reproduction? A. more offspring produced at a faster rate B. offspring that are identical to parents C. rapid growth of gametes D. genetic variation

What substance translates the genetic code?

How are young plants supported? a) the pressure of water inside the cells pressing outwards on the cell membrane b) the pressure of water inside the cells pressing outwards on the cell walls c) the pressure of water passing from the roots through

Why is meiosis split into meiosis one and two

Identify a chemical compound or element and explain how it acts as a water pollutant.