Explain to me in simple terms what causes stomach ulcers?

What technique is used to separate the different cell parts? Select one: a. all of the above b. microscopy c. cell fractionation d. cell culture

Identify what type of questions can be answered by science

A farmer was growing the peas seen here: round and yellow are dominant traits; green and wrinkled are recessive traits. The farmer's goal was to produce a crop of round, green peas.

The fossil record matches the geologic record.

What is the most likely explanation for Wes's observation?

How fossil fuels were formed?

The most commonly practiced and dangerous driving behavior is answer

What is the usual result when the ocean breaks pebbles into smaller and smaller peices

How does the hydronium ion form

Information flow in biological systems is necessary for negative (regulative) feedback to operate. Which of these examples does NOT involve flow of information providing feedback?