the valence of aluminum is + 3 and the valence of chlorine is - 1 the formula for aluminum chloride is correctly written as

These are all the living organisms on earth

A gradual change in phenotype over a geographical area is called a?

In order to understand the stability of a community, ecologists want to be able to measure biodiversity in an ecological area. One method for measuring and calculating stability is to calculate a Simpson's index for diversity.

Describe the functions of the female reproductive system.

A deer is considered a heterotroph because it

Animals that take in oxygen from their environment, glucose is broken down into carbon dioxide and water in a process called

2 Apply Scientific Reasoning What are some possible reasons a cell might not be able to create and deliver all the protein it needs? Come up with at least four potential reasons and discuss specific cell structures and their functions

What is likely the greatest cause of species extinctions this century

What is an ecological system consisting of all of its biotic and abiotic factors? A) community B) ecosystem C) habitat D) pure culture

What will most likely happen if a species can no longer produce offspring?