Aphids pierce the tissues of plants with their tubular mouthparts and suck out the phloem juices
Because this food is mostly sugar water with a low concentration of protein, the aphids have to process large volumes of it to obtain sufficient protein. Most of the excess sugar and water passes right through the aphids' digestive tracts and is defecated as "honeydew," which is actively sought out and eaten by some ants. The ants will even "milk" honeydew by stroking the aphids. In return, ants protect their aphids from predators, even going so far as taking them inside overnight. The relationship between the aphids and ants is called
A) predation. B) parasitism. C) competition. D) mutualism.
D
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Gingko trees are known to lose their leaves at a certain time each year throughout the United States. Based on this information, Gingko trees in China must behave the same way. These statements are an example of:
A. inductive reasoning B. deductive reasoning C. a theory D. an experiment
Microinsertions and microdeletions often result in ________ mutations
A) auxotrophic B) advantageous C) silent D) frameshift
Most nitrogen-fixing bacteria symbiotically associated with plants are called
A) bacteroids. B) mycorrhizae. C) rhizobia. D) symbiodinia.
Mitochondria probably developed before the atmosphere was oxygen rich
Indicate whether the statement is true or false.