In a forest community, the total population of the deer population is 1,200. The birth rate of the deer population is 14/100, and the death rate is 10/100. How many deer were added to the population in one year? a
14

b
48

c
86

d
168

b, 48

Explanation:

total population=1200

for every 100 deer, there are 14 births

so 14*12= 168

for every 100 deer there are 10 deaths

so 10*12= 120

168-120=48

answer; a male inherits only one allele of the x-linked gene controlling hair color;

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.