Muscles can only cause bones to move by contracting. this means that a muscle can only move a bone in one direction so muscles work in antagonistic pairs - one muscle contracts while the other relaxes.

Which of the following is an example of this type of co-evolution

Three physical characteristics that all primates share?

Overall, four molecules of atp are produced by glycolysis. however, the products of glycolysis are two atp molecules, two pyruvate molecules, and two nadh molecules. the atp values do not match because select one: a.

Which of the following abiotic factors would likely affect humans directly? Question 2 options: water availability soil pH humidity climate change

Which statements describe carbon? Check all that apply. a. atomic mass of ~ 12 amu b. atomic number of 6 c. atomic number of 14 d. 4 protons, 8 neutrons e. 6 protons, 6 neutrons f. valence of 4 g. valence of 6

What is the main job of DNA?

Which process most likely forms rust on rocks? A. chemical weathering by oxidation B. mechanical weathering by ice wedging C. mechanical weathering by wind D. chemical weathering by acid rain Question Resources

11. What is the basis for classification of bacteria?

Organisms typically have only one copy of each allele. true false

N general terms, equilibrium means a state of balance. Genetic equilibrium can occur if the allele frequencies in a population do not change over time.