Convergent evolution can occur only when two species

living matter is at least 60% water it makes sense then the cell membranes are made of phospholipids because

What is common to all contact forces

What are the similarites between igneous and sedimentary rocks physical appearance?

A plant with the dominant trait, wrinkled seeds, is crossed with a plant that has non-wrinkled seeds. All of the offspring are all wrinkled-seeded.

Oxygen dissociation curve is a. sigmoid b. parabolic c. hyperbolic d. straight line

What did the shift from hunting and gathering to gardening lead to?

In the human body, oxygen is absorbed by the lungs and nutrients are absorbed by the small intestine. In a single-celled organism, this absorption directly involves the 1. nucleus 2. chloroplasts 3. cell membrane 4. chromosomes

The big chunks of earth's crust (plates) slowly moved around. This is called?

N your own words, describe an interaction between the hydrosphere and the geosphere

what are three functions that are directly controlled by the cell membrane