Which of the following is an effect of norepinephrine binding to beta 2 adrenergic receptors?

vasodilation

vasoconstriction

an increase in heart rate

lipolysis

Explain why there are relatively few fossils dating from before the cambrian period

Choose the statement that best describes the Moon's landscape. A. sparse vegetation, very little erosion, sandy soil B. riverbeds with boulders, dust storms, bad weather C. many craters, maria formed from volcanic eruptions D.

What is a characteristic shared by both predators and parasites

Stress at a divergent plate boundary

When one life form evolves from another does the original species continue to exist?

The Sun is the primary gravitational force in the solar system

What is function of the cell membrane?

Each tip (sp 1-4) represents a different species of ant. Species 1 is the outgroup. Of species 3 and 4 possessed a Thymine a nucleotide position 45, while species 1, and 2 possessed an Adenine, then what kind of character is the A nucleotide at

Mateo is 70 years old and had a stroke last year. He is now unable to remember how to get to and return from his new doctors office using a specific route. What brain structure was potentially damaged by Mateo's stroke?

Which is the correct sequence for levels of biological organization within a multicellular organism?