In cells, the activity of enzymes is often regulated by other enzymes or molecules. Why

is this necessary?

The type of plankton that resemble plants are called?

Need answers fast A student observes that it is hard to hear music underwater in a pool. They state that the sound is always muffled. They conclude that the speed of sound in water must be slower than in air.

During the time of early ventricular filling, where is the lowest pressure in the cardiovascular system?

Discuss how meiosis relates to Mendel's law of segregation.

What is a population's distribution of individuals among various age groups called? a. reproductive structure b. genetic structure c. age structure d. reproductive composition e. age composition?

Which animal shares the most traits in common with humans a: lemur b: baboon c: chimpanzee

Early archaic homo sapiens have been found on all continents except - and both of

Describe the major developments during each trimester of human gestation.

What is the structural unit of compact bone?

A plasma membrane and a cell wall 1. Are two names for the same thing 2. Have the same structure and different functions 3. Have different structures and the same function 4. Have different structures and different functions Which one would it be?