Of the 30000000 species on earth, how many are lost each hour?

Gametes, or sex cells, are considered a. haploid. b. diploid. c. photosynthetic. d. prokaryotic.

Which of these could be part of a city's climate? A. partly cloudy B. a thunderstorm C. average rainfall of 24 inches per year D. a current temperature of 80°F

Which of the following may use RNA as its genome? a bacterium an archaeon a virus a eukaryote

Are you likley to find zooplanton in the aphotic, benthric zone of a ocean

Fossil fuel production definition

Plasma from a sick mouse is filtered across a membrane that has a 200 nm pore size. If the filtrate is still infectious when injected into a healthy mouse, then the pathogen is most likely a (n): -parasitic worm -fungus -virus -bacterium -archaean

Which factor is a population-limiting, density-dependent factor? select one: a. the rapid spread of tuberculosis in heavily populated areas b. a drought that limits food availability c. a heavy flood that destroys a large area around a river d.

What term is defined as the ability to do work?

How do the functions of the skeletal and muscular system differ? A. Muscles provide structure and support to the body, while bones move the muscles. B. Muscles send signals to the body, and bones are responsible for movement. C.

What structures form cytoplasmic channels that connect adjacent plant cells through the cell walls?