Prolonged periods of drought in an area cause decreases in plant population sizes. Which of the following statements describes how the decreases in plant population sizes then affect other populations in the area? *
Omnivore population sizes increase, and herbivore population sizes increase
Omnivore population sizes decrease, and carnivore population sizes increase
Herbivore population sizes increase, and carnivore population sizes decrease
Herbivore population sizes decrease, and carnivore population sizes decrease
Answers: 1
Biology, 21.06.2019 18:30, smelcher3900
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 3
Biology, 22.06.2019 09:00, werewolf4751
Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land
Answers: 3
Prolonged periods of drought in an area cause decreases in plant population sizes. Which of the foll...
English, 15.11.2019 23:31