Explain why most scientists think the first cells were similar to today's archaea

Why is energy required for life

An atom that has 5 electrons 6 neutrons and 8 protons will have an atomic mass of

What effect does temperature have on enzyme activity

Both of Tim's parents have brown eyes, but Tim has blue eyes. How is this possible? A. Eye color is not a genetic trait. B. The characteristic (blue eyes) is carried in a recessive gene. C.

Which level of classification contains all the others? 60 kingdom domain genus class

The movement of water is able to transport minerals and nutrients. Which statement best explains why water is able to do this? A. Water is an excellent solvent. B. Water absorbs heat energy. C. Water has a density of one gram per milliliter. D.

Maintains a constant body temperature even when external temperature changes external temperature sets the internal temperature internal temperature constantly changes A. endotherm B. ectotherm C. poikilotherm

Which of the following statements regarding the control of C. botulinum in canned sauerkraut is not correct? a. salt in the sauerkraut inhibits the growth of C. botulinum bacteria b. an acidic pH (less than 4.

What are some careers involving animals? I want to become a vet, but are there other options?

Wind that blows from land to offshore causes