41) which of the following statements regarding lymph is false? a) lymph derives from interstitial fluid. b) lymphatic vessels have valves to direct fluid flow. c) lymphatic capillaries have larger diameters than that of blood capillaries. d) lacteals are prominent lymphatic vessels in the cardiopulmonary system. e) lymphatic capillaries are more permeable than blood capillaries.

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer