Wich make the pear troublesome?

A. Sclerenchyma

B. Collenchyma

C. Parenchyme

3 characteristics used to classify trees?

What do similarities in the early development of organisms suggest

During what set of reactions is oxygen released?

Practice 1: What is so important about DNA? Select all correct answers. A. DNA is found in all organisms and carries instructions to build those organisms B. DNA found in one organism probably shares similar instructions found in another species C.

Describe some of the similar features/traits of dogfish shark compared to other sharks.

Which gas supplies the energy for storms

Photosynthesis is an example of an exothermic reaction. an endothermic reaction. a reaction that gives off heat. a reaction that emits energy.

The position of a specific gene on a chromosome can be determined by:

What is An easy way to describe low and high air pressure

What type of animal do most scientists believe are the ancestors of the modern day whale