What is the rigid material in plant cell walls?

The concentrations of a reaction are measured to determine reaction rates. If the concentration of the reaction's product increases from 0.0250M to 0.484M in 3.00mins, determine the average reaction rate during this time period? 1.

Which of the following correctly describes the size of the Milky Way galaxy? A. The Milky Way galaxy is smaller than most galaxies. B. The Milky Way galaxy is the largest known galaxy. C. The Milky Way galaxy is larger than most galaxies. D.

Think about water and how it rolls up on a beach. think of all it's qualities. is it alive according to the characteristics of life? why or why not?

As a submarine gets closer to the bottom of the ocean. which of these is it likely to encounter? select the two correct answers. A. a bioluminescent fish B. a V-shaped trench C. a coral reef D. a continental shelf

The delicate balance of life within a biome cannot be disturbed by people. true of false

Match each description with the correct division of the peripheral nervous system. somatic nervous system regulates voluntary activities parasympathetic nervous system regulates involuntary activities sympathetic nervous system called the rest and

Which of the following diseases is caused by a spirochete? tularemia relapsing fever rheumatic fever Rocky Mountain spotted fever

The brain of the nervous system and the endocrine glands of the endocrine system are similar to one another in certain ways. Both act to send messages to distant body parts. What is a significant difference of the activity of endocrine glands? A.

After reviewing the process of meiosis describe how an error during meiosis could lead to polyploidy

The requency of the red eyes (p ellele) in fruit flies is 63% what is the frequncy of the white eyes allele q allele