What happens to the frequency heard when an observer begins moving toward the stationary source of a sound?

A. The frequency decreases

B. It depends on how fast the observer is moving

C. The frequency increases

D. Nothing happens

In dogs, gum coloration is co-dominant, with black coloration, black & pink spotted and pink. You have a lovely spotted gummed Labrador retriever who has just had 8 pups. Four of the pups have spotted like your dog. and 4 have pink gums.

Is it possible that two prokaryotic organisms show phenotypic similarities, but do not share close evolutionary relatedness?

In my BioChem. Class we were told to make a superhero, so I made mine with with powers of super strength and fruit, and don't know what I should name her, any ideas?

Which correctly identifies the composition of an oxygen atom?

How do scientists use modeling to study ecological changes?

In the scientific name of the gypsy moth, the word porthetrio refers to the insect's A.) Species B.) Genus C.) Phylum D.) Kingdom

A species with 12 protons and 10 electrons is A) Ne2+ B) Ti2+ C) Mg2+ D) Mg E) Ne2-

What is the first step in the scientific process

According to the induced fit hypothesis of enzyme catalysis, which if the following is correct? A. The binding of the substrate depends on the shape of the active site B. Some enzymes change their structure when activators bind to the enzyme C.

Both algae and amoeba are in the domain Eukarya. Which of the following characteristics do they most likely share? A. They both belong to the plant kingdom. B. They both have cells with no nucleus. C.