Biology, 24.05.2021 16:10 skylarbrown018
The three-spined stickleback is a species of fish. It lives in the ocean and in streams that flow into the ocean. Some scientists think that the ocean populations and stream populations may be evolving into separate species. Which of the following statements describes how speciation of these fish would most likely occur? A Fish from stream populations would sometimes swim into the ocean but fish from ocean populations would stop swimming into streams. B Ocean populations and stream populations would each mate fewer times per year and would have decreased birth rates over time. Ocean populations and stream populations would each adapt differently to their c environments and would accumulate enough differences over time to prevent interbreeding D Fish from stream populations would start to reach maturity at the same time as fish from ocean populations
Answers: 2
Biology, 21.06.2019 20:00, nisha87
Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle
Answers: 1
Biology, 21.06.2019 21:30, irishdreamer0689
List the advantages and disadavantages of the switch from persistent chlorinated hydrocarbon pesticides (such as ddt) to nonpersistent organophosphate pesicides. have the benefits of the switch outweighed the disadvantages? explain.
Answers: 3
Biology, 22.06.2019 14:00, jimmyjimjim
What is one reason why transpiration is important in plants? question 19 options: it produces food from the sugar in the plant cells. it enables the flow of water out of the plant. it produces carbon dioxide in the leaves of the plant.
Answers: 1
The three-spined stickleback is a species of fish. It lives in the ocean and in streams that flow in...
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