Explain how plant-growth-enhancing rhizobacteria act to enhance plant growth.

As sticklebacks have adapted to freshwater environments, what changes have taken place?

explain the difference between weathering and erosion? how is deposition also involved in this three step cycle?

Which step should be next in this procedure

How many covalent bonds can carbon make?

Why does the need for living space cause problems for some organisms?

Why the average yearly temperature at the north pole is - 18c while the average yearly temperature at the equator is 27c?

The separation of a group of individuals from the rest of the population is referred to as

The following are features of mitosis or meiosis. can you put them in groups. im so confused : allows for transmission of chromosomes to offspring, necessary for growth and regeneration, allows for regeneration of an organism, two identical diploid

What is the MAIN cause of increased erosion, especially for soil? A) strong winds B) flash floods C) human activity D) movement of glaciers

Why do most biologists consider RNA to be life's first coding system?