Which type of organisms do scientists think that all of life on Earth originated from?

stromatolites

single-cell eukaryotes

multicell animals

single-cell prokaryotes

F the body is hyperventilating, releasing more carbon dioxide from the body than being produced, h+ion concentration will decrease? a. True b. False

What causes the ocean waves that surface use for their sport? A. Sunlight heating water B. Wind blowing across water C. Destiny differences in water D. Salinity differences in water

What tool can be used to measure the mass of a package being mailed?

7. Where does translation take place?

True or false: within a species, reproduction is controlled so that it does not produce an excessive of offspring

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.

When blockages in the bloodstream read the Brian it can cause blank?