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Questions in biology

📝 Answered - Which statement best describes the amount of catalyst that remains at the end of a reaction? A. More catalyst is present at the end than at the beginning of the reaction. B. Less catalyst is present at the end than at the beginning of the reaction. C. The amount of catalyst is the same at the end as at the beginning of the reaction. D. The catalyst is consumed by the reaction, so none remains at the end of the reaction.

📝 Answered - The blood filtering units of the kidney are called: villi ureters nephrons glomeruli

📝 Answered - The energy used to produce ATP in the light reactions of photosynthesis comes from A. splitting water B. movement of H+ through a membrane C. the oxidation of sugar molecules D. carbon fixation E. fluorescence

📝 Answered - A close relationship between two organisms of different species that benefits both and harms neither is called A. Mutualism B. Parasitism C. Interaction D. Commensalism What are heterotrophs often called? A. Producers B. Consumers C. Scavengers D. Decomposers To determine an organism's niche, you need to identify A. what it eats, where it lives and how it interacts. B. where it lives, what it does during the day and its color. C. what it eats, where it lives and how it fights other animals. D. how it makes its food, how it finds its food and where it lives. Refer to the food chain below to answer Questions 8 and 9. Hibiscus -> Weevil -> Small bird -> Hawk Which organism is an autotroph? A. Hibiscus B. Weevil C. Small bird D. Hawk The third order consumer is the A. hawk B. weevil C. hibiscus D. small bird

📝 Answered - Write the answers to the following questions: Q1. Define reproduction? Q2. Identify and describe the functions of any two plant tissues. How many types of mesophyll tissues are there and what are their functions?

📝 Answered - Suppose you were preparing to visit a space station that uses photosynthesis to provide you with oxygen. What color lightbulbs should you take with you? A. red and blue B. red C. green D. blue E. green and blue

📝 Answered - 1. True or False: A virus must infect a living host cell to reproduce. 2. True or False: Viruses have a hard time entering the body due to their size. 3. True or False: The two types of viruses are "common" and "uncommon". 4. True or False: The two categories of antiviral drugs are "antiviral" and "antiretroviral". 5. True or False: Most nonretroviruses must invade the body in large numbers to cause disease. 6. True or False: A virus that is stronger than others and persists even when the body is trying to destroy it is said to have less virulence. 7. True or False: Antiviral drugs are virucidal and work by killing viruses. 8. True or False: Antiviral drugs work by either suppressing viral reproduction or preventing viruses from releasing their genetic material.

📝 Answered - This item is based on the following choices of feeding habit employed by organisms. I. Using nutrients dissolved in the surrounding medium II. Manufacturing own nutrients by photosynthesis III. Depending on other plants or animals for food Which method/s the protozoan used to get their nutrition? A. I, II and III B. II and III only C. I and II only D. I only

📝 Answered - Which best links photosynthesis and cellular respiration? a. chemiosmosis b. photosystems c. thylakoid membrane d. four carbon compounds

📝 Answered - Across 3. outermost cellular layer of the leaf 5. where most photosynthesis takes place in the leaf 8. carry food and water to the cells 10. food-making process occurring in leaves 11. gas necessary for photosynthesis 12. green pigment necessary for photosynthesis Down 1. control the size of the stoma opening 2. allow the exchange of gases between the environment and the air spaces inside the leaf 4. organelles that contain chlorophyll 6. beneath the palisade layer 7. end product of photosynthesis 9. waxy coat of the leaf