What is the largest, and most sparsely populated, marine community? What are the feeding and breeding habits of organisms that live in this community?
?The largest marine community-also the most sparsely populated-lies within the uniform mass of permanently dark water between the sunlit surface and the deep bottom. Few animals live there because so little food is available, but those organisms that survive are among the strangest in the ocean. Opportunities for feeding in the deep open-ocean are few and far between, and some animals are able to consume prey larger than themselves should the occasion arise. Because so few animals are present, mating is also a rare event; in a few species, males and females become permanently bonded during their first encounter the male burrowing into the female's body for a lifelong free ride.
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Ancient Greek investigators discovered
A. that Earth rotates daily. B. Earth's circumference. C. why things float. D. all of the above
Most of Earth's land area is currently being used for agriculture
Indicate whether the statement is true or false.
The "ide" ending is usually, but not always, associated with monatomic anions. Which of the following polyatomic ions has a name which ends in "ide"?
A) C2H3O2- B) HPO42- C) OH- D) SO42-
Sediments derived primarily from the products of weathering on the continents are called ________
A) terrigenous sediment B) hydrogenous sediment C) biogenous sediment D) both terrigenous and biogenous sediment