Answer the following question given this paragraph: Q: What distinguishing feature predates the branching of mammals from other vertebrates? Choices: - adaptation - eggs - teeth - backbone A:
backbone
(Question)
Answer the following question given this paragraph: Magma forms deep beneath the Earth's surface. Rock melts below the surface under tremendous pressure and high temperatures. Molten rock flows like taffy or hot wax. Most magmas are formed at temperatures between 600 o C and 1300 o C ( Figure below ). Q: What flows like taffy or hot wax? Choices: - gas - water - sand dunes - molten rock A:
(Answer)
molten rock
Ques: Answer the following question given this paragraph: Q: All seed plants and a few seedless vascular plants are what? Choices: - zygotes - protozoans - homosporous - heterosporous A:
Ans: heterosporous
(Q).
Answer the following question given this paragraph: The second major step is cytokinesis. As in prokaryotic cells, the cytoplasm must divide. Cytokinesis is the division of the cytoplasm in eukaryotic cells, resulting in two genetically identical daughter cells. Q: What is the name for the division of the cytoplasm in eukaryotic cells, resulting in two genetically identical daughter cells? Choices: - mitosis - vegetative division - metamorphosis - cytokinesis A:
(A).
cytokinesis
Ques:Answer the following question given this paragraph: 22.10 Protozoa As heterotrophs, protozoa scavenge materials from their surroundings. Others are predators which actively hunt or ambush small organisms such as bacteria and other protozoa for a source of nutrition. Protozoa can be parasitic as well; they may live inside larger organisms, like humans. Most protozoa live as single cells, although a few form colonies. Protozoa are generally difficult to identify due to their varied shape. They may appear as jelly-like blobs, spherical sunbursts, or a flattened leaf. Tiny blood parasites may be only 2 m long. On the other hand, shell-covered marine may be 5 cm or more in diameter. Furthermore, different protozoans have their own complex life cycles. The complexity has led certain organisms to be mistakenly classified for other species. Nevertheless, protozoa can move, and so, they are classified based on their methods of locomotion. Characteristics of Protozoa : About 30,000 species known About 10,000 species are pathogenic, including some of the worst human diseases heterotrophic highly variable in form and life cycle. Q: Protozoa are generally difficult to identify due to what? Choices: - their hidden shape - their resting shape - their formation shape - their varied shape A:

Ans:their varied shape
Answer the following question given this paragraph: Interaction of Hydrostatic and Osmotic Pressures The normal unit used to express pressures within the cardiovascular system is millimeters of mercury (mm Hg). When blood leaving an arteriole first enters a capillary bed, the CHP is quite highabout 35 mm Hg. Gradually, this initial CHP declines as the blood moves through the capillary so that by the time the blood has reached the venous end, the CHP has dropped to approximately 18 mm Hg. In comparison, the plasma proteins remain suspended in the blood, so the BCOP remains fairly constant at about 25 mm Hg throughout the length of the capillary and considerably below the osmotic pressure in the interstitial fluid. The net filtration pressure (NFP) represents the interaction of the hydrostatic and osmotic pressures, driving fluid out of the capillary. It is equal to the difference between the CHP and the BCOP. Since filtration is, by definition, the movement of fluid out of the capillary, when reabsorption is occurring, the NFP is a negative number. NFP changes at different points in a capillary bed (Figure 20.16). Close to the arterial end of the capillary, it is approximately 10 mm Hg, because the CHP of 35 mm Hg minus the BCOP of 25 mm Hg equals 10 mm Hg. Recall that the hydrostatic and osmotic pressures of the interstitial fluid are essentially negligible. Thus, the NFP of 10 mm Hg drives a net movement of fluid out of the capillary at the arterial end. At approximately the middle of the capillary, the CHP is about the same as the BCOP of 25 mm Hg, so the NFP drops to zero. At this point, there is no net change of volume: Fluid moves out of the capillary at the same rate as it moves into the capillary. Near the venous end of the capillary, the CHP has dwindled to about 18 mm Hg due to loss of fluid. Because the BCOP remains steady at 25 mm Hg, water is drawn into the capillary, that is, reabsorption occurs. Another way of expressing this is to say that at the venous end of the capillary, there is an NFP of 7 mm Hg. Q: In the cardiovascular system, net filtration pressure represents the interaction of osmotic pressures and what other pressures? Choices: - uptake - homeostatic - hydrophilic - hydrostatic A:
hydrostatic