The diagram below shows some relationships between ecosystems near the Sonoran and Chihuahuan Deserts. What happens as elevation increases?

Into which chamber does blood from the lungs flow

Seeds in pea plants can be yellow or green, this is controlled by one gene with two alleles, with yellow being dominant. two pea plants, each heterozygous for the trait of seed color are mated. what is the genotypic ratio of the offspring? 1:1

Which of the following resources is a nonrenewable resource? A.) Gold B.) Carbon C.) Tree D.) River

What is one way that creativity made up for limited technology for early biologists? Scientists created unique experiments for exploring living organisms without killing them.

Near-daily distress because of fatigue or loss of energy are most likely to be associated with

In the food chain which organism receives the least amount of energy from the sun?

A force is a ___ quantity. -scalar -victor -diagonal

What do we call temperature changes caused by changes in air pressure

What does the rotating movement produce?

What is true of experimental designs that are used in scientific research? (a) The designs use the same steps in every kind of research. (b) The designs follow a general method that is familiar to all scientists.