Plants get taller because they are stretching in search of sunlight. Sunlight is essential for photosynthesis; which energy, light, sunlight, water, carbon dioxide come together to produce sugar for the plants to survive.
Answer:
D
Explanation:
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The adaptive immune response is the second line of defense against non-self pathogens. Adaptive immunity, also known as acquired immunity or specific immunity, is found only in vertebrates.
<h3>What is second line of defense?</h3>
Nonspecific resistance, which destroys invaders without targeting specific individuals, is the second line of defense: phagocytic cells ingest and destroy all microbes that enter body tissues.
The adaptive immune response is the body's second line of defense against non-self pathogens. Adaptive immunity, also known as acquired immunity or specific immunity, is found only in vertebrates.
Thus, adaptive immune system is a natural, nonspecific immune response, but it is part of the body's second line of defense.
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Answer:
Before meiosis actually begins, the DNA that is packaged into chromosomes must be fully copied.
