Orcas, or killer whales, are natural predators of sea otters. it has been observed that in regions where the sea otters are not present, sea urchins grow rapidly and destroy much of the natural kelp vegetation.
which of these statements is correct in this context?
a) kelp is the keystone species because their survival is key to the survival of the entire ecosystem.
b) sea otters cannot be considered the keystone species because they are not the top predators in the ecosystem.
c) sea urchins are the keystone species because they multiply rapidly in the absence of their natural predators.
d) sea otters are a keystone species as they prevent a herbivorous species from completely destroying a plant species.
Answers: 3
Biology, 22.06.2019 05:30, Will1119
Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.
Answers: 1
Biology, 22.06.2019 12:00, calebabaltimore
Why has two different alleles for the same trait?
Answers: 1
Biology, 23.06.2019 05:30, travawnward
Now that you have learned about indicator solutions, write a hypothesis to answer the lesson question, “what macromolecules are present in the mystery food sample? ” (keep in mind that your teacher strongly suspects zack, who ate tofu, is guilty.) hypothesis: if the mystery food is tofu, then .
Answers: 1
Orcas, or killer whales, are natural predators of sea otters. it has been observed that in regions w...
English, 30.08.2019 11:10
History, 30.08.2019 11:10
History, 30.08.2019 11:10