Earths tropics have the most diverse ecosystems because they have

a. the most invasive species

b. very little competition

c. stable levels of moisture

d. many primary disturbances

A ten mile area of trees is removed from a tropical rainforest how will this effect the water and oxygen in the area

Which of these terms refers to rock material that has been weathered physically, chemically, and biologically? A. erg B. soil C. talus D. loess

What would happen if cyclin was injected into a cell that was in mitosis?

What is the correct order of a signal being transmitted across a neuromuscular junction? Arrival of end plate potential-acetylcholine release-action potential-binding of acetylcholinesterase to its substrate Arrival of action potential-acetylcholine

The planets were originally giant comets captured by the Sun.

1. If the sequence on a DNA molecule was CCTAG, the complementary sequence on the mRNA would be: GGAUC GGUTC GGATC UUATU

What is the chemical process for respiration A) releases APD B) releases energy C) releases oxygen D) releases glucose

Blood typing is an example of this where there is one gene but one gene can have several different characteristics

What did louis pasteur discovered by using a compound microscope?

What is transferred from one bacteria to the next