Which of these true statements could contribute to a plausible hypothesis for why the alternation of generations evolved in the earliest land plants? select all that apply. o many gametophytes tolerate desiccation. gametophytes lack the ability to form rigid (lignified) vascular tissues. the biopolymer sporopollenin first evolved to protect the diploid stage of green algae. it allowed one generation to specialize in fertilization and the other in dispersal.

Which of the following is a difference between active transport and facilitated diffusion? view available hint(s)which of the following is a difference between active transport and facilitated diffusion? facilitated diffusion can move solutes against a concentration gradient, and active transport cannot. active transport involves transport proteins, and facilitated diffusion does not. facilitated diffusion involves transport proteins, and active transport does not. active transport requires the expenditure of cellular energy, and facilitated diffusion does not.

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?

3test questions with answers on incomplete dominance