Why do scientists believe that life first emerged from the ocean and onto land well after the ancestors of modern day cyanobacteria populated the earth

The size of the iris and pupil can change size. If you walked from a bright room into a dark room, what would happen to the size of the iris and pupil?

What is the function of an exoskeleton? A.) To enclose the body from the inside. B.) To enclose the body from the outside. C.) To enclose the internal skeleton.

Copper wires used to connect circuits in microprocessors (computer chips) are deposited by passing electrical current through a solution containing copper ions. this is an example of 1. a fuel cell. 2. an electrolytic cell. 3. a voltaic cell. 4.

What is a correct statement about mutation

Is butter rich in lipids?

When are the homologous pairs of chromosomes separated? 1. Telephase ll. 2. Metaphase l 3. Anaphase l. 4. Fertilization

In what form does the sun's energy arrive on Earth?

Some lizards have an adaptation that allows their tails to break off with minimal damage to bones, nerves, blood vessels, and muscles. This type of lizard can then regrow the missing portion of the tail.

1. A source of simple carbohydrates is a. seeds c. fruits b. brownrice d. potatoes

What does the Magnuson Stevens Act deal with? A. setting up of marine sanctuaries B. prevention of overfishing C. regulating disposal of materials into the ocean D. protection of marine mammals