Answer:
A) dinosaurs, reptiles, and birds had a common ancestor
Explanation:
The dinosaurs have not evolved as a separate phylum that has not close relations with other animals, but instead they share a common ancestor with the likes of the reptiles and the birds. The reptilians have actually emerged before the dinosaurs, but the dinosaurs managed to take up the top niches in the food chain after they appeared never the less. The birds on the other hand are actually an evolutionary product of the diversification of the dinosaurs. the birds have actually evolved from small bipedal dinosaurs, that over time started to take up new way of life and appearance in order to conquer the skies.
The lipid portion of the cell membrane is responsible for the isolating functions of the membrane, while the protein portion regulates exchange and communication with the environment.
"75%" is the one probability of two parents heterozygous for a widowÍs peak (Ww) having an offspring with a widowÍs peak among the following choices given in the question. The correct option among all the options that are given in the question is the first option. I hope that this is the answer that has come to your help.
Position and movment are controlled and uncontrolled by climax or orgasms
Brain stem which consists of the pons, midbrain, and pons