Blog

Living things are composed only of organic elements. Inorganic elements such as sodium chloride are only found outside living organisms. 

Substances that are polar are ___.

Which of the following is a steroid?

The pH scale ranges from 1 to 16.

Which of the following binomial names is correctly written?

Discuss the Rio Grande Valley in ancient times. What was the area like geographically and geologically? How did ancient Texans survive in this environment? Describe the lifestyle of the inhabitants of the Rio Grande Valley.

Clusters of atoms with a certain pattern that always behave a certain way.

Which of the following proteins is not correctly matched with its function?

All living things react to biotic stimuli but very few react to abiotic stimuli.

Proteins can be denatured by changing the temperature or pH.