Could life as we know it exist if our air only contained oxygen?

What is used to direct protein synthesis in the cell? A. electron transport chains in the cell's mitochondria B. protein transport molecules in the cell's ribosomes C. sequences of nitrogenous bases in the cell's DNA D.

Identify two types of scientific evidence biologists use to classify living plants in the modern taxonomic systems

Do plants and animals get their nitrogen the same way explain?

1. Which organ produces bile? 2. Which organ stores bile? 3. In which organ, and what part of them at organ is bile released in?

What agreement has the goal of stopping the loss of biodiversity? the kiev resolution the kyoto protocol the montreal plan the soviet doctrine

In pea plants, tall [t] is dominant over dwarf [t] plants. a. can two tall pea plants crossed together produce any dwarf pea plants? b. can two dwarf plants crossed together produce any tall plants?

How many breedof dogs are there

What is the cause of Angelman Syndrome? a) A mutation that occurs randomly after birth or due to a viral infection in the mother during pregnancy. b) The shutting off of the paternal chromosome and the deletion on Chromosome 15 from the mother.

Which of these is a relationship shown in Carla's food web? about surface water is most useful for explaining this observa

Match each term to its scientific definition. 1.) natural world- 2.) theory- 3.) scientific method- A. everything that can be observed or explained scientifically. B. the procedure of scientific inquiry used to investigate natural phenomena. C.