Select the events that are a consequence of activating mutations in the ras gene. The ras proto-oncogene is converted into an oncogene. Malignant transformation of normal cells is inhibited. Specific transcription factors are activated by phosphorylation. The MAP kinase signalling pathway is inhibited. Abnormally rapid cell growth and proliferation is induced.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

a. by using fur or clothes to trap heat energy near the body