Which of the following is a likely geographic barrier for speciation of finches?

a open field of grass

b mountain range or a canyon

c islands surrounded by ocean water

d forrest of trees

The term that means pertaining to within the skin is

The stage of meiosis in which chromosomes pair and cross over is: a. prophase i b. metaphase i c. prophase ii d. metaphase ii e. anaphase ii

If a parent cell has 48 chromosomes, how many chromosomes will each daughter cell have after mitosis and cytokinesis occurs? 12 chromosomes

Where is ATP synthase located in the mitochondrion? A. Cytosol B. Electron transport chain C. Outer membrane D. Inner membrane E. Mitochondrial matrix

A substance that contains two or more substances combined chemically is called

Animal lays eggs with a tough leathery watertight shell

Why is DNA antiparallel? It has double strands complementing each other. The bases in one strand pair with the other bases in the complementary strand. It has a ladder shape. Its double strands run in opposite directions.

Which of these is a solution, where the solute and solvent are in the gas phase? A) air B) ozone C) brass D) carbon dioxide

The roads in northern states (like Michigan) need to be repaired more often than roads in southern states (like South Carolina). Explain the effects mechanical weathering could have on this?

A substance that form hydrogen ions when dissolved in water is called a?