Which of the following statements is true?
the challenger deep was explored by picard and walsh.
data from jason-1 will scientists study deep sea life.
salinity refers to the amount of salt (nacl) in the ocean.
all of the above.
none of the above.

What are the three groups of atoms that make up amino acids called

Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat butterflies and moths, yet birds rarely eat the monarchs. likewise, the monarch caterpillars are brightly striped yellow and white and black, and they also are rarely eaten by birds, although some wasps will attack them and feed them to their young. what can be inferred from these observations? monarchs must threaten and attack birds, but not wasps. monarchs have a way of discouraging bird predation that does not involve hiding. monarchs’ wings are so colorful that most birds must find them difficult to eat. monarchs lay more eggs than other less conspicuous butterflies.

Lumps of iron and manganese ore called can be harvested from the seafloor near underwater volcanoes.