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Questions in biology

📝 Answered - The fluid mosaic model explains: Select one: A. why active transport occurs across a cell membrane. B. the arrangement of cell membrane components. C. the movement of sodium ions across the cell membrane. D. why fluids collect in a cell under hypotonic conditions.

📝 Answered - Why does photosynthesis require water? A. Because water provides oxygen atoms B. Because water provides electrons C. Because water accepts electrons D. Because water acts as a catalyst

📝 Answered - What statement is not true about photosynthesis? Select one: A. ATP and NADH are produced during the light-dependent reactions. B. Carbon dioxide is an input in the light-dependent reactions. C. Oxygen is a limiting factor in the rate of photosynthesis. D. The sun's energy is harnessed and converted into chemical energy.

📝 Answered - Compared to the cnidaria, platyhelminthes has a ______. Select one: A. more complex nervous system B. more complex coelom C. less complex nervous system D. less complex coelom

📝 Answered - A scientist finds a new life form and determines that it contains no nuclei. Which of the 6 kingdoms could it belong to? Select the list that contains all the possible kingdoms. A. Protista and Plantae B. Eubacteria and Archaebacteria C. Eubacteria, Archaebacteria, and Plantae D. Eubacteria, Archaebacteria, and Fungi

📝 Answered - Which organelles are found in both plant and animal cells? A. Ribosomes and mitochondria B. A nucleoid and cell membrane C. Cell wall and genetic material D. A nucleus and a cell wall

📝 Answered - Which terms are used for gametes that are needed for reproduction in vertebrate animals? A. sperm and eggs B. antibodies and pathogens C. seeds and spores D. buds and offspring

📝 Answered - Why are glass cylinders preferred over plastic cylinders for conducting lab experiments? A. They are attractive and light. B. They are cheap and abundant. C. They are heat and chemical resistant.

📝 Answered - All living things need food and a place to live. Which of the following is also something all living things need to live? A. A family B. Water C. Some means of movement D. A nest

📝 Answered - If a brown-eyed man marries a blue-eyed woman and they have seven children, all of whom are brown-eyed, what is the father's genotype? What are the genotypes of the children?