Why is sperm different?

Which sedimentary rocks are made of sediments from dead organisms? detrital chemical biological crystal

Which muscle tissue moves food in the digestive tract? a. cardiac b. neurons c. smooth d. skeletal

These fossils can be formed when mud around the dead organism makes a mold of it. Trace Fossil Mold Fossil Resin Fossil Body Fossil

Squamous cell carcinoma and basal cell carcinoma are both cancers of cell tissue of the skin, lining of the blood vessels, respiratory, intestinal, urinary tracts, and other body systems. These carcinomas are found in what type of tissue?

Which gas makes up the largest amount of smog around cities? A. sulfur oxides B. carbon dioxide C. carbon monoxide D. nitrogen Oxides

What are the main organs of the CNS?

In the African savanna, more wildebeests are born than the environment can support. What is most likely the result over a period of years? A. The chances for survival of the population are reduced. B.

On the galapagos islands, darwin discovered birds with differently shaped beaks. what might this tell you about the eating habits of the birds on different islands

How are atoms and elements related? a. elements can be broken down but atoms cannot. b. all elements contain different types of atoms. c. every element contains one type of atom.

What happens when an essential amino acid is missing from the diet