A species of dark-green trees is spread over a very large terrain. Over a long period of time,
mountains form in this area and the trees
become split by the new formation. Later, the
trees on the east side of the mountain are all
light-green.
Over time, the light-green and dark-green trees
spread to a new field that is not separated by the
mountains. Both types of trees are seen in the
same field. However, the trees cannot produce
any fertile offspring together. Which of the
following provides the BEST explanation as to
why the two populations of trees cannot produce
fertile offspring?
A. The trees on the west side of the mountain
retained their original phenotype that became
unique to their population.
B. The trees on the east side of the mountain
developed a new phenotype, which made them
unable to produce fertile offspring.
C. The trees on the east side of the mountain
experienced many genetic mutations and
recombinations unique to their population.
D. The trees on the west side of the mountain
could not adapt to the new barrier, which made
them unable to produce fertile offspring.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

plato users

given bodies of water

pacific / arctic / indian / southern

[ a ] the caribbean sea

[ b ] the northern ocean

[ c ] the atlantic ocean

[ d ] the barents sea

with this being the given answers

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.