What happens when ATP supplies energy for thin filaments in a muscle fiber to slide over the thick filaments?

A. The muscle contracts.

B. The muscle relaxes.

C. The muscle both contracts and relaxes.

D. The muscle neither contracts nor relaxes

Imagine a dihybrid cross. if there are 100 progeny (we are talking about flies here), approximately how many flies would you expect to be homozygous recessive for both traits?

Which of the following best describes a species? A. An interacting group of populations that occupy the same area B. All of the individuals of the same population that inhabit an area C.

Biology S1 Unit 1 Post-Test Study Guide • Understand the difference between a dependent and independent variable

The percentage of recombination between two genes a and b is 12.5%. the percentage of recombination between genes a and d is 28%. therefore:

How long does it take for the moon to revolve around the sun

Which of the following is an example of sensors working during homeostasis? a blood volume decreasing from lack of water b the pancreas failing to release insulin c acidic blood pH disrupting cell metabolism d energy demands triggering a release of

If two organisms evolve in response to each other which evolutionary pattern is demonstrated

If there is a possibility of four different genotypes in the offspring that result from a dominant-recessive inheritance, and if the couple has four children, would they definitely have children with one expressing each genotype?

The ovaries are located in the ___ cavity.

Transport of materials into a cell against a concentration gradient, from low to high, requires A) water. B) energy. Eliminate C) osmosis. D) a passageway.