TRUE OR FALSE (each sentence) 1. t/f Macrophages and dendritic cells can both be antigen-presenting cells.

2. t/f Complement proteins are antibodies produced by skin cells.

3. t/f Dendritic cells are the histamine-producing cells of the immune system.

4. t/f Stomach acid is one of our natural defenses against bacteria in food.

5. t/f Cytokines are molecules that cut holes in bacterial membranes.

6. t/f There are different Toll-Like Receptors for bacteria and viruses.

6. in domesticated cats, the following are independently assorting: normal ears (t) is dominant to tufted ears (t); curved whiskers (c) is dominant to straight whiskers (c); the presence of six toes (s) is dominant to five toes (s); gene for hair length is an x-linked codominant. the three phenotypes for hair length are long (xhxh), medium (xhxh), and short (xhxh); medium is the heterozygous condition. given two parents: ttccssxhxh x ttccssxhy how many different gametes could be formed in the female cat with respect to these four traits? how many phenotypes are possible in the offspring from this mating?

The table below shows the elements that mainly comprise each of the four layers of earth: elements in layers layer main elements crust oxygen, silicon mantle iron, magnesium outer core iron, nickel inner core iron which of these elements make up the layer that is 0.2 to 1.1 percent of earth's total diameter?

Which force diagram accurately represents a satellite in orbit around earth? image for option 1 image for option 2 image for option 3 image for option 4