At the end of which period did nearly three quarters of all species of life on earth go extinct in a very short time interval

Cambrian

jurassic

triassic

cretaceous

Which of the following can be accurate said about climax communities

What type of drug test measures the amount of a drug in the specimen? quantitative qualitative confirmatory immunoassay

Candace is receiving chemotherapy for cancer. she is visibly undernourished, and yet she has no appetite. the clinical term for what candace is experiencing is

Collecting data is part of

Do organisms always stay in the same level

Why do our classification systems change?

Potato plant, which organ is used primarily for food storage rather than food production? A) flower, B) root, C) stem, D) left

Which of the following is an example of an extended product responsibility? Select one: a. ecotourism b. soft loans for business planning to implement environmental products c. the use of recycled wood products in the manufacture of new products d.

What is an organism that lives on or in another organism and uses the other organism for nourishment to the detriment of the host organism?

If I turn my computer off at least once a week, it will run faster. What is the independent variable? What is the dependent variable? What are some controlled variables?