Of the following, where would we most likely find water in the form of a gas?

1. the atmosphere

2. the biosphere

3. the geosphere

4. the hydrosphere

If the chloroplast is the result of endosymbiosis, what membrane of the chloroplast represents the plasma membrane of the original prokaryote?

Why is the nucleus considered the controller of the cell?

Which period mammal first appeared with jaws

How long does a leopard gecko stay with it's mom?

Describe the characteristics of the six kingdoms of living things using the terms multicellular, unicellular, heterotroph, autotroph, eukaryote, and prokaryote.

Which two processes result in variations in sexually reproducing species? (1) mutation and genetic recombination (2) mitosis and natural selection (3) extinction and gene replacement (4) selective breeding and cloning

How was the amount of food caught by a heron related to change in biotic and abiotic factors?

Which ecosystem demonstrates the lesser biodiversity? Why?

A particular tissue was discovered to have cells that lie in small chambers, separated by a matrix that is solid yet flexible, and fibers that could be stretched while still being able to return to their original length. Name this tissue.

What does the lac operon in bacteria code for?