Which of the following is a clue of a chemical change?

A. iron changes color when heated

B. gas bubbles form in boiling water

C. balls of wax form when melted wax is poured into ice water

D. a gas forms when vinegar and baking soda are mixed

When a natural disaster destroys a stable ecosystem, the area is temporarily less stable than before. This is most likely due to

Eggs produced by the ovaries are carried into the uterus by the fallopian tubes.

Science is a form of inquiry because scientists trying to understand the world around them start by a forming conclusions. b collecting data. c asking questions. d designing experiments.

Which of the following is the best definition of energy? A. the ability to generate electricity B. the ability to generate heat C. the ability to do work D. the ability to produce fusion

TRUE OR FALSE 1. Oxygen is absorbed into the bloodstream in the trachea? 2. The bronchial tubes branch off from the trachea like an upside-down letter Y.

The most recent blood work of a client with a diagnosis of heart failure indicates increased levels of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP). What is the most likely effect of these peptides on the client's physiology?

What two characteristics do all jovian planets have in common?

When the sea floor collides with the continental floor. dome mountains are formed both floors fold inward, forming a mountain range the sea foor ships below the continental foor the continental floor gets pushed into the mantie

Which structure secretary's hormones directly into the bloodstream without using a duct A) lacrimal gland B) adrenal gland C) oil gland D) salivary gland

Disorder affecting one or more nerves where they exit the spine