As sunlight passes through water, only ________ wavelengths are able to penetrate into deeper water
Fill in the blank(s) with correct word
blue
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The alternate complement pathway plays an important role in
A. innate immunity. B. specific immunity. C. acquired immunity. D. both innate immunity and specific immunity.
Match the structures with their appropriate functions:
A. Roots allow plants to obtain water and nutrients, while shoots allow plants to obtain gases and sunlight. B. Roots allow plants to obtain water, nutrients and glucose, while shoots allow plants to obtain sunlight. C. Roots allow plants to obtain glucose, while shoots allow plants to obtain sunlight and water. D. Roots allow plants to obtain carbon dioxide and water, while shoots allow plants to obtain nutrients and oxygen.
Which of the following statements regarding plasmodesmata is false?
A) Plasmodesmata penetrate plant cell walls. B) Plasmodesmata carry chemical messages between plant cells. C) Plasmodesmata carry nutrients between plant cells. D) Plasmodesmata are found in plants and animals.
The cause of stomach ulcers appears to be
A. excess stomach acid. B. diets rich in meat products. C. drinking too much coffee. D. extreme stress. E. the bacterium Helicobacter pylori.