How do you tell if physicalchange has occurred?

a. it cannot be reversed.

b. a new substance appears.

c. no new substance is produced.

Why is ocean water more dense than fresh water at the same temp? A. circular winds B. less pressure C. deep currents D. higher salinity

Which of the following statements regarding human genetic disorders is accurate? a. Nondisjunction is responsible for causing Huntington's disease. b. Disorders in individual genes can cause disease or provide individuals with a genetic advantage. c.

The function of the coded instructions contained in the body cells of an organism is to

What carbohydrate can be used by the body as an immediate source

What biome is winona mn in

If a volcano were to erupt and release large amounts of ash into the air, how would this affect the climate on Earth? a. The ash would increase the greenhouse gases, thus increasing temperature. b.

What is the purpose of implantation pregnany?

Ivy starts to get into the hot tub, but the water feels extremely hot. She stands in the water for a few moments, then slowly eases the rest of her body down into the water.

The differences between hashimotos' thyroiditis and grave's disease include b. only hashimoto's is a type ii hypersensitivity a. only grave's disease is an autoimmune disease c.

How could natural selection lead to evolution?