Which of the following best describes a characteristic that distinguishes animals from protists?

a) most animals are eukaryotes, and most protists are prokaryotes.

b) most animals have bilateral symmetry, and most protists have radial symmetry.

c) most animals have cell walls containing proteins, and most protist cell walls contain chitin.

d) most animals are multicellular, and most protists are unicellular.

the sporophyte of an unknown plant species grows as a separate plant than the gametophyte. the plant produces both female and flagellated male gametes from the same gametophyte, and it releases spores into the environment. which of the following is the best conclusion about the life cycle of this plant?

a) the plant is a gymnosperm, and the gametophyte is its dominant phase.

b) the plant is an angiosperm, and the gametophyte is its dominant phase.

c) the plant is a moss, and the sporophyte is its dominant phase.

d) the plant is a fern, and sporophyte is its dominant phase.

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time

Bisphenol a (often called bpa) is a chemical found in products that people use every day, from water bottles to food containers to children's toys. unfortunately, bpa leaches out of its many products and makes its way into our bodies. what are the health effects of bpa exposure? ongoing research is finding that elevated exposure to bpa can affect a wide variety of developmental and physiological processes, but one of the first studies of bpa's health effects came about because of a simple mistake in the lab. at a laboratory at case western reserve university in 1998, geneticist patricia hunt was making a routine check of her female lab mice. as she extracted and examined developing eggs from the ovaries, she began to wonder what had gone wrong. she noticed that many of the eggs showed problems with their chromosomes, and some had irregular amounts of genetic material, which can lead to miscarriages and birth defects in mammals. she learned that a lab assistant had mistakenly washed the plastic mouse cages and water bottles with a harsh soap, releasing bpa from the plastic. knowing that bpa is an endocrine disruptor, a chemical that can enter organisms and mimic hormones, hunt set out to discover whether it had adversely affected her mice.

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale