Which of the following is NOT an effect of smoking? A. Constriction of blood vessels
B. Damage to the endothelial lining
C. Thickening of blood vessel walls
D. Reduced stickiness of blood platelets

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Drag each label to the correct location on the table. each label can be used more than once. decide whether each statement describes saturated fat, unsaturated fat, or both saturated and unsaturated fats.

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?