What most directly causes hypertension?

lack of blood flow to the heart

a weakening of a blood vessel wall

excessive force of blood pumping

injury to heart muscle

What is the main cause of any change of state

Banking stem cells is a very popular practice in science. This is when stem cells, located in the umbilical cord of a birthed infant, are saved and frozen.

Does anybody have the answers to the whole test?

Describe the two traits that all mammals have. Use a specific animal as an example of each.

A cook adds oil to vinegar and then mixes it to make a sald dressing. Is this a physical change? Why or why not?

Why did Mindel prevent his plants from self pollinating

Which term best describes clusters of light-absorbing pigments? Photosystems Grana Thylakoids Chlorophylls

Plants can reproduce A. only by cutting or budding. B. only using pollination. C. sexually and asexually. D. constantly.

Phasic receptors: a. are quick to adapt to a particular stimulus intensity. b. slowly decrease the frequency of action potentials generated to a constant stimulus. c. are attune to parameters that the body must continuously assess. d.

The automobile engine is the largest source of (blank) gas. a. Carbon Monoxide b. Carbon dioxide c. Sulfur dioxide d. Nitrogen dioxide