Consider the group of giraffes in the image below. Which statement about the giraffes explains their evolution based on Charles
Darwin’s main points? The closest fossil ancestor to these giraffes would have a very short neck. All three of the giraffes have an equal chance of reproducing regardless of the environment. As a giraffe reached for food, the giraffe could make its neck longer making it better adapted to the environment. Long necks were a random genetic change and resulted in the gradual increase of organisms with long necks.
Stick bugs are perhaps one of the better known examples of insect mimicry. Their twig-like appearance helps to defend them against predators that hunt by sight.
(TT) Is fully tall. (TS) Is medium. So it can be assumed that (SS) is short. When forming a cross, you cross TT and TS to generate a phenotypic ratio of 1x1 or a genotypic ratio of 1 TT, 1 TS. Making it exactly split in half in 50/100.
