How is an inference related to observation

Coral reefs are faced with many threats. Some, like the crown-of-thorns starfish and sea urchins, are considered natural threats and some, like warming water temperatures and pollution, are considered man-made threats.

12. When a plant grows on the shade

The number of zebras in the zoo is considered a

Went two comparison groups within an experiment are identical except for one variable, the experiment is called a what? Control experiment, variable experiment, uncontrolled experiment

A certain atom has an atomic number of four. how many protons does it have? a. 0b. 4c. 8d. 2

In what regions of the world is habitat loss most rapid?

Describe the process of speciation in relation to change in gene frequency, change in environment, natural selection, and genetic drift.

Which substance acts as a buffer in natural water? A) minerals and salt B) distilled water C) sulfuric acid D) a pH indicator

How many electrons are in a full valence shell? 6 8 4

What are three significant differences between meiosis 1 and meiosis 2