Biology, 05.10.2019 22:00 angelteddy033
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: 1
Biology, 21.06.2019 16:40
Which of the following is a cause of a dna mutation? o a. the linking of amino acid subunits into a long chain o b. the transcription of dna into rna o c. an error in the repair of damaged dna d. the diffusion of molecules across the cell membrane submit
Answers: 1
Biology, 22.06.2019 04:50
How are proteins and nucleic acids related? they both provide energy. they both carry genetic information. the structure of proteins is determined by nucleic acids. the subunits of nucleic acids are also the subunits of proteins.
Answers: 3
Biology, 22.06.2019 15:30
Body temperature is tightly regulated in mammals for example when external temperatures drop too much the body of a mammal response by in order to it's core temperature.
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Biology, 22.06.2019 16:30
Urgent in guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?
Answers: 1
Orcas, or killer whales, are natural predators of sea otters. it has been observed that in regions w...
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