Question: Q: The ambrosia beetle bores holes in? Read this paragraph and choose the correct option from the provided answers: Ambrosia beetles bore holes in tree bark and "plant" fungal spores in the holes. The holes in the bark give the fungi an ideal place to grow. The beetles harvest fungi from their "garden. ". Choices: - flowers - dirt - leaves - tree bark A:
Answer: tree bark

Question: Q: Red bone marrow, tonsils, spleen, and thymus gland are considered organs of what system? Read this paragraph and choose the correct option from the provided answers: The lymph organs are the red bone marrow , tonsils , spleen , and thymus gland . They are described below ( Figure below ). Choices: - endocrine - nervous - circulatory - lymphatic A:
Answer: lymphatic

Question: Q: What type of species have a large effect on the balance of organisms in an ecosystem? Read this paragraph and choose the correct option from the provided answers: Predators play an important role in an ecosystem. For example, if they did not exist, then a single species could become dominant over others. Grazers on a grassland keep grass from growing out of control. Predators can be keystone species . These are species that can have a large effect on the balance of organisms in an ecosystem. For example, if all of the wolves are removed from a population, then the population of deer or rabbits may increase. If there are too many deer, then they may decrease the amount of plants or grasses in the ecosystem. Decreased levels of producers may then have a detrimental effect on the whole ecosystem. In this example, the wolves would be a keystone species. Choices: - decomposers - producers - secondary consumers - keystone A:
Answer:
keystone