What is 221,000,000,000,000,000,000 expressed in scientific notation?

Today there are now at least 13 species of finches in the galápagos islands and all of them evolved from one ancestral species which combined millions of years ago. What sreps lead to speciation and a diverse range of finch types

Which attribute disqualifies the object from being a planet?

Students who study perform better in school. What is the hypothesis

Which characteristics do glycogen and starch share?

What organ is always found at the core of all animal cells and plant cells

The main difference between deserts and steppes is the

What is the key element found in C02 and glucose

Nitrogen is made available in a useful form for animals in the A. fertilizers they absorb. B. plants they eat. C. air they breathe. D. rainwater they drink.

4. One advantage of biodiversity in an ecosystem is ... 1) guarantees that the largest organisms will dominate the area 2) ensures a large amount of identical genetic material 3) develops relationships between organisms that are always positive over

Which part of the brain consists of two hemispheres? what are some of the functions is controls?