Approximately how many genes do humans have?

a. 10000

b. 20000

c. 50000

d. 100000

Which are responses to internal stumuli?

Describe how you use natural ecosystems

In which step is messenger RNA being made

The renal arteries supply blood to the kidneys. TrueFalse

A scientist, using a telescope, sees arcs of light around a galaxy. In 3-5 sentences, explain the cause of the arcs of light.

How does a cell transport materials across the cell membrane?

2. What is the name given to anything in the environment that keeps a population from growing out of control?

What is the life span of the Visayan deer

Which of the followijng is not type of bacteria that can cause illness a) aerobic bacteria b) anaerobic bacteria c) facultative anaerobic bacteria d) depilitative bacteria;

If a closed container contains a mouse as well as enough food, water, and oxygen for the mouse to live for three weeks, how much will the container weigh 1 and 2 weeks later after the mouse has eaten, drunk, and exercised (respiration is CO2CO2