What are the main components needed to insure ecosystem stability?
a.
estuary, savanna, and t...
Biology, 15.10.2020 05:01 karrathomas
What are the main components needed to insure ecosystem stability?
a.
estuary, savanna, and tundra
b.
primary and secondary succession
c.
food, water, shelter and biodiversity
d.
moderate climate, sufficient space, and adequate sunli
Answers: 3
Biology, 21.06.2019 20:00
Read the following scenario to answer the following question. over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that a. the founder effect becomes increasingly important b. microevolution no longer occurs c. gene flow between populations is reduced d. artificial selection becomes a greater factor in microevolution
Answers: 2
Biology, 22.06.2019 03:00
Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.
Answers: 1
Biology, 22.06.2019 09:30
What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent
Answers: 2
Biology, 22.06.2019 09:40
What molecule contains an organisms genetic material, passed down from parents to their offspring
Answers: 1
Mathematics, 06.06.2021 05:00
Mathematics, 06.06.2021 05:00
Mathematics, 06.06.2021 05:00
English, 06.06.2021 05:00
Chemistry, 06.06.2021 05:00
Business, 06.06.2021 05:00
History, 06.06.2021 05:00
Mathematics, 06.06.2021 05:00
Chemistry, 06.06.2021 05:00
Mathematics, 06.06.2021 05:00
Spanish, 06.06.2021 05:00
Spanish, 06.06.2021 05:10