Which of the following would be a likely characteristic of an ecosystem that has remained relatively unchanged for hundreds to thousands of years?

periodic logging

well-developed soils

old growth trees

mostly pioneer organisms

relatively stable climate

Identify the main functions of the nervous system

The process that occurs when physical forces break rock into smaller pieces without changing the rock's chemical composition is called ___.

What resource were the finches competing for in the galapagos?

A model organism is a species that researchers study to better understand certain biological processes. Mollusks and arthropods are commonly used as model organisms for studying mechanisms of learning and memory, while sponges and jellyfish are not.

What are two main sources of genetic material found in viruses?

1. The first choice on a dichotomous key is: "1A. Are wings covered by an exoskeleton? vs. 1B. Are wings not covered by an exoskeleton?" Which organism is separated from the others by this question?

b. Explaining A friend claims that pea plant grow faster than corn plants. Could you investigate this idea through scientific inquiry? Explain.

Why is a disease like osteoarthritis not considered an infectious disease?

What other word from this unit has a prefix homo and means to have two copies of the same allele

Kevin has been experiencing difficulty urinating now that he is over the age of 60. The doctor examines his prostate gland and finds no evidence of inflammation. Furthermore, Kevin's PSA test is normal. It is most likely that Kevin is suffering from