A pheromone is:

A: A substance that only is used when an animal is in danger.

B: A type of equine.

C: A chemical that can alert other living things.

D: A brain wave

How did the gold that we are able to mine become part of Earth?

True or False: 1) Carbohydrates are joined together by peptide bonds 2) A disaccharide is an example of a carbohydrates 3) Monosaccharides are made of polysaccharides 4) Monosaccharides have to be broken down many times during digestion 4) Polymers

Which of the following is not associated with mechanical weathering a. frost wedging b. unloading c. biological activity d. reactions with oxygen

What is coronary ligament

A nurse is teaching a client how acupressure works to relieve pain. which explanation would the nurse most likely use?

How are the structures in prokaryotic cells different from the organelles that carry out similar functions in eukaryotic cells?

Word endings for plant taxa are the same as those for animal taxa ... True. False

What is the difference from center of disease control and world health organization?

What is homeostasis and why is it important in a cell

The figure looks at the three modes of selection in a mouse population with a range of fur color phenotypes.