When working with pea plants, Mendel found that purple flower color was dominant over white flower color. Mendel crossed a pure purple flower with a heterozygous purple flower. What percentage of the offspring
were white?
50%
100%
75%
0%

i won't lie i don't know so go online and ask google thats what i do

the growth of the plants is affected by the heat of the light. what is the student doing?

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.