why is there variation new organisms formed from the joining of two reproductive cells?

Why do you feel the trachea expand when you're sitting upside down?

A species of protozoan-carrying mosquito lives in a meadow. The protozoan, if transmitted to mammal hosts through a bit, can be fatal to the host. Two species of rabbits, species I and II, both live in this meadow.

Which renewable energy is used quite frequently in the u. s. and canada

Describe the heat transfer cycle between the Sun, the Earth, and the Earth's atmosphere.

What is the role of membranes in DNA transcription?

Proteins attract water and hold it within blood vessels, preventing it from freely flowing into the spaces between the cells. this is an example of how protein is used for: a. maintaining fluid and electrolyte balance. b. building antibodies. c.

Identify the fuel that could be classified as a nonrenewable or renewable resource. A) biomass B) geothermal C) wind D) tidal

Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enable it to move from the roots to the leaves of plants? a:Water exhibits cohesive behavior.

Whats the process of Asexual Reproduction for Komodo Dragons?

As you add drops of water to the surface of the penny, each drop sticks to the other water droplet forming a large drop on top of the penny. This is caused by which water property? Question options: adhesion cohesion capillary action