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Questions in biology

[Terjawab] Roundworms differ from flatworms in having: A. Circulatory system B. Pseudocoelom C. Bilateral symmetry D. Triploblasty

[Terjawab] What is the function of the lacrimal apparatus? A. to wash the surface of the eye B. to help focus the eye C. to conduct light into the eye D. to close the lens of the eye E. to secrete tears

[Terjawab] Sun is a ____ source of energy? a. natural b. artificial c. intelligent d. none

[Terjawab] 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.

[Terjawab] The blood filtering units of the kidney are called: villi ureters nephrons glomeruli

[Terjawab] 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

[Terjawab] 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

[Terjawab] 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?

[Terjawab] 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

[Terjawab] 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.