Ques: Q: What is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane? Read this paragraph and choose the correct option from the provided answers: Endocytosis is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane. The membrane folds over the substance and it becomes completely enclosed by the membrane. At this point a membrane-bound sac, or vesicle pinches off and moves the substance into the cytosol. There are two main kinds of endocytosis:. Choices: - metastasis - autolysis - ectocytosis - endocytosis A:
Ans: endocytosis

Ques: Q: What do you call an abnormal mass of cells that is dividing improperly? Read this paragraph and choose the correct option from the provided answers: Cells that divide uncontrollably may form a tumor , or abnormal mass of cells. Tumors may be benign or malignant. Benign tumors remain localized and generally do not harm health. Malignant tumors are cancerous. There are no limits to their growth, so they can invade and damage neighboring tissues. Cells from malignant tumors may also break away from the tumor and enter the bloodstream. They are carried to other parts of the body, where new tumors may form. The most common and the most deadly cancers for U. S. adults are listed in Table below . Choices: - bumps - appendages - molars - tumor A:
Ans: tumor

Ques: Q: The name carbon tetrachloride implies one carbon atom and four of which other atoms? Read this paragraph and choose the correct option from the provided answers: The name carbon tetrachloride implies one carbon atom and four chlorine atoms, so the formula is CCl4. Saylor URL: http://www. saylor. org/books. Choices: - calcium - nitrogen - iodine - chlorine A:
Ans: chlorine

Ques: Q: In adaptive radiation, what is the name of the initial species that then subsequently becomes multiple other ones? Read this paragraph and choose the correct option from the provided answers: In some cases, a population of one species disperses throughout an area, and each finds a distinct niche or isolated habitat. Over time, the varied demands of their new lifestyles lead to multiple speciation events originating from a single species, which is called adaptive radiation. From one point of origin, many adaptations evolve causing the species to radiate into several new ones. Island archipelagos like the Hawaiian Islands provide an ideal context for adaptive radiation events because water surrounds each island, which leads to geographical isolation for many organisms (Figure 11.16). The Hawaiian honeycreeper illustrates one example of adaptive radiation. From a single species, called the founder species, numerous species have evolved, including the eight shown in Figure 11.16. Choices: - pioneer - father - Mother - founder A:
Ans:
founder