Answer: D. Amylase
Explanation:
Amylase is a enzyme that breaks down protein present in food.
Answer:
A. Tapeworm in an intestinal tract.
Explanation:
This symbiotic relationship is parasitic because the tapeworm causes harm to the host. Tapeworms feed off the nutrients the host consumes, thus making the host sick.
Not parasitic:
Bees transport pollen from flowers back to the nest to feed the young bees, but pollinate female flowers as well which keeps the flower population alive.
Pilot fish swim under sharks to keep other prey from eating them, and the shark do not eat eat the pilot fish.
Birds eating the insect of the back of a hippopotamus keep the hippo clean and parasite-free as well as feeding the birds.
Answer:
The reason why cities tended to develop in the region of the fall line of rivers is because of the need to offload goods from the ships since navigation will be hindered at the zone.
Explanation:
Fall line is a region that separates the upland or mountainous zone from the lowland river bodies, where waterfall also occurs. The waterfall in this region tends to expose the beneath bedrock materials and stop the movement of riverboats and ships upstream. Therefore, the boats must offload their goods, which tends to induce the formation of ports and majorly settlement by commercially oriented people who are willing to utilize the opportunity to trade on the commodities offloaded. The emergence of cities along the river fall lines is owing to this reason.
Answer:
A. The mountain has less variety in the environment.
Explanation:
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