What changes would you observe in the fossil record that would indicate the occurrence of a mass extinction

What is the discharge of water moved by a river that has an area of 750m and is traveling 4 m/s?

Which of the following is true regarding extinction? A. If the rate of speciation in a clade is equal to or less than the rate of extinction, the clade will survive. B.

3. Members of this class of chordates have no true teeth or jaws, have a spinal cord, and multiple hearts. a. bony fish b. reptiles c. jawless fish d. amphibians

What is the difference between ligament and bone?

What organelle uses oxygen to burn glucose for energy?

Technology has allowed us to not only see detailed structure of organelles, but it has also allowed us to see molecular machines, carrying out highly sophisticated tasks. true false

Which ocean borders Africa on the western coast

When doing a geographical analysis of a population, it is important to only look at one scale. a. true b. false

Food manufacturers want to prevent small bits of metal from entering their product how might magnets be used

Describe at least three things you can learn about a fetus by taking a sample of the mother's blood.