What is smooth muscle tone?

a. can rapidly develop action potentials

b. shallow invaginations of cell membrane

c. relatively constant tension maintained for a period of time

d. intracellular cytoskeleton

e. enzyme that removes phosphate from myosin?

Why would an organism behave in a way that reduces its individual fitness?

Which of the following is not an example of organic matter? A dead animal Coffee bean shells Bagged fertilizers Seaweed

Which type of blood vessels contain thick muscular tissue within their walls to pump blood throughout the body?

Scientists describe a period called the Great Acceleration, in which human activities began significantly altering global systems.

What is a pycnocline?

What is the difference between a gene and an allele? a. a gene is a form of a trait, and alleles make up genes. b. a gene is a sequence of bases in a dna molecule, and an allele is an alternative version of a gene that codes for the same feature. c.

Microorganisms that catabolize sugars into ethanol and hydrogen gas would most likely be categorized as A) homolactic fermenters. B) anaerobic respirers. C) alcohol fermenters. D) heterolactic fermenters. E) aerobic respirers.

Which of the following sentences is the best example of a hypothesis a. UV radiation does not cause skin cancer. b. chickens lay more eggs when they are happy. c. why does the earth orbit around the sun? d. how many types of organisms are there?

What will most likely result when the jet stream moves south of North Carolina

Why is the hormone oxytocin important?