An extraterrestrial life form is discovered. It has a genetic code much like that of organisms on Earth except that there are three different DNA bases instead of four. The base sequences are translated as triplet codons. What can we conclude about the biology of this extraterrestrial form

Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

What maintain homeostasis when a persons internal body temperature is 97.5°f