Explain how a pulley changes the amount of force needed to lift an object

Suppose that you have a solution of 5% sugar water in a bag. The bag is semipermeable: Water molecules can pass into and out of it, but sugar molecules cannot.

Imagine that twins are separated at birth. One is raised speaking only English, whereas the other is raised in a bilingual household and speaks both English and Spanish. Years later, the twins meet and decide to learn French together.

Is iron abiotic or biotic?

A limestone rock is found in an Arizona desert. The limestone is gray and has a fish fossil. What can scientists learn from the limestone?

Scientists find fossilized bones of a huge animal that doesnt exist today. What type of evidence is this?

Why do scientists study the formation of the earth to find other planets like ours?

In which stage of meiosis do homologous chromosomes separate?

Of these, which is a characteristic of cancer? a. uncontrolled cell growth c. is an infectious disease b. can be treated with vaccines d. none of the above

Which is not correctly paired concerning parasympathetic outflow? which is not correctly paired concerning parasympathetic outflow?

Explain what feeding behaviors shown make a food web a better choice for displaying this information than an energy pyramid