Answer the following question given this paragraph: Vesicle transport into the cell is called endocytosis. The cell membrane engulfs the substance. Then a vesicle pinches off from the membrane and carries the substance into the cell. Q: What do you call vesicle transport into the cell? Choices: - passive transport - metastasis - dialysis - endocytosis A:
endocytosis
(Question)
Answer the following question given this paragraph: The first organisms were made of only one cell ( Figure below ). The earliest cells were prokaryotes . Prokaryotic cells are surrounded by a cell membrane. They do not have a nucleus. Their organelles are free in the cell. The cells get their nutrients directly from the water they live in. The cells need to use these nutrients to live and grow. Q: The earliest cells were prokaryotes, surrounded by a cell membrane but lacking which key structure? Choices: - mitochondria - ribosomes - lysosomes - nucleus A:
(Answer)
nucleus
Ques: Answer the following question given this paragraph: The rate at which a solute dissolves depends upon the size of the solute particles. Dissolving is a surface phenomenon since it depends on solvent molecules colliding with the outer surface of the solute. A given quantity of solute dissolves faster when it is ground into small particles than if it is in the form of a large chunk because more surface area is exposed. The packet of granulated sugar exposes far more surface area to the solvent and dissolves more quickly than the sugar cube. Q: The size of the solute particles determines the rate of what? Choices: - merging - extracting - solution - dissolving A:
Ans: dissolving
(Q).
Answer the following question given this paragraph: Evolution occurs in a population when its allele frequencies change over time. For example, the frequency of the A allele might change from 0.7 to 0.8. If that happens, evolution has occurred. What causes allele frequencies to change? The answer is forces of evolution. Q: What occurs in a population when its allele frequencies change over time? Choices: - variation - generation - extinction - evolution A:
(A).
evolution
Ques:Answer the following question given this paragraph: to within the alveoli. As a result, carbon dioxide dissociates readily from hemoglobin and diffuses across the respiratory membrane into the air. In addition to the partial pressure of carbon dioxide, the oxygen saturation of hemoglobin and the partial pressure of oxygen in the blood also influence the affinity of hemoglobin for carbon dioxide. The Haldane effect is a phenomenon that arises from the relationship between the partial pressure of oxygen and the affinity of hemoglobin for carbon dioxide. Hemoglobin that is saturated with oxygen does not readily bind carbon dioxide. However, when oxygen is not bound to heme and the partial pressure of oxygen is low, hemoglobin readily binds to carbon dioxide. Q: When oxygen is not bound to heme and the partial pressure of oxygen is low, hemoglobin readily binds to what? Choices: - iron - carbon - sulfur - carbon dioxide A:

Ans:carbon dioxide
Ques:Answer the following question given this paragraph: Insects spread disease and destroy crops. However, they are essential for pollinating flowering plants. Q: What are essential for pollination, but can spread disease and destroy crops? Choices: - fruits - spiders - mice - insects A:

Ans:
insects