Phototropism and geotropism are controlled by which type of plant growth chemical?

auxin

cytokinin

gibberellin

thigmotrope

What are renewable sources of energy better than nonrenewable sources? A. because we will not run out of them B. Because they are fossil fuels C. Because they are more expensive D. Because they release greenhouse gas

The structure of a body part is related to its function. How does the structure of a neuron reflect the function of transmitting messages, or electrical signals? A. Neurons have a cell body that contains a nucleus. B.

Explain the diffrence between a disacharide and a polysaccaride

Which cell organelle is most directly involved with the bonding of amino acids?

Mark's abuse of alcohol and other addictive drugs is influenced by genetic factors, by the ready availability of drugs in mark's neighborhood, and by mark's failure to accurately assess the risks associated with drug usage.

How are biomes related to ecosystems?

What is the term for the flexible material that forms the structure of the ear? A. Cartilage B. Obliques C. Spongy tissue D. Osteoblast

Suppose you remove your test cultures from the incubator and notice that one of them-a known fermenter-has a gas bubble in the Durham tube. Knowing that fermenters frequently produce gas, you ignore the bubble and proceed to the next step.

In peas, yellow seed color (y) is dominant to green seed color (y). which describes an organism that has nonidentical alleles for seed color? yy and has green seeds yy and has yellow seeds yy and has yellow seeds yy and has green seeds

What would you expect to happen if sea otters were removed from this food web? Check all that apply. The population of elephant seals would decrease. The population of kelp crabs would increase. The population of kelp would increase.