Where does all energy in a food chain originata

Many organizations release indexes used to measure the development of the world's countries. As we learned in this lesson, these indexes measure many factors, from life expectancy to happiness.

This is a procedure that is performed not in a living organism but in a controlled environment, like a test tube or Petri dish.

Muscle cells make different proteins than nerve cells because they have different sequences of dna. True or False

Describe the general shape or plan of the frog's digestive system

Which of these is an example of the earth changing rapidly a. hurricane b. forest succession c. volcanic eruption d. flooding

If a plant is wilted that means it doesn't have enough

Which phase occurs directly after s phase

Which organ synthesizes more than 90 percent of plasma proteins?

In the alternation of generations life cycle the zygote undergoes mitosis to become a A. gametophyte. B. sporophyte. C. spore. D. gamete.

Why must cells be able to both transcribe and replicate their dna? the cell's dna must be transcribed before it can be replicated. new cells can only be created after transcription has taken place.