2) What describes the excretion of urea?
removal of
undigested
food
removal of
metabolic
wastes
removal of
substances
in excess
removal of
toxic products
А
X
X
✔
✔
B
X
✓
✔
✔
C
X
X
X
✔
D
✓
✔
✔
✔

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.