The number of trophies levels in an ecosystem pyramid

A) is limitless

B) is limited by the amount of energy that is lost at each trophies level

C) is impossible to count because energy is lost at each trophies level

D) never exceeds three

Which answer below correctly orders the tempo markings from slowest to fastest?

What is the largest north american bear?

A virus is a A. host B. producer C. consumer D. intracellular parasite

A student in your physiology lab is thirsty and decides to sneak a drink of deionized or distilled water. the student drinks a fairly large quantity of this water in a short period of time. what will happen to the student's cells?

7. Which kingdom includes the most eukaryotic unicellular organisms? A. Fungi B. Protista C. Archaebacteria D. Eubacteria

How has the discovery of DNA affected the classification of protists (check all that apply) 1) many scientists wants to get rid of the kingdom Protista 2) some organisms have been moved out of the kingdom Protista 3) classification is generally

Abnormal skin conditions such as abscesses, vesicles, and macules are described using what term

Place or object used for comparison to determine if something is in motion

A scientist on a field trip discovered a new organism. She examined its cells under a microscope and observed several different structures, including a nucleus, a cell wall, and some chloroplasts.

an experiment was done to determine if the rate at which an egg cooked depended on the temperature of water in which was boiled. what is the independent variable