20. d
21. a
22. c
23. b
24. c
25. b
26. d
27. a
The answer is c. Phosphorus is not abundant in the atmosphere, it comes mostly from the land and ocean.Phosphorus cycle through the lithosphere, hydrosphere, and biosphere, but not the atmosphere. The reason for this is that phosphorus cannot be found in the gas state, unlike the carbon.
Answer:
How the sea serves us
> Many of the ecosystem services provided by the sea are threatened today by overexploitation, environmental pollution and greenhouse gases. Yet in many cases, how severely individual habitats are degraded and ecosystem services are impaired is just not known. Researchers are therefore attempting to assess the exact condition of marine ecosystems. Such analysis is important in order to plan concrete protection measures and to define critical limits and target values.
The bounty of the sea © Science Photo Library/Steve Gschmeissner/Getty Images
The bounty of the sea
> Since time immemorial we humans have been living with the seas and from their bounty. They provide us with food, mineral resources, transportation routes and other services. The climate-regulating effect of the oceans and the biochemical processes that take place in the sea are of fundamental importance. Today, some of these services are under threat, which i
Answer:
C.the fertile offspring of individuals that are well adapted to their environment will make up the greater proportions of the next generation.
H.individuals better suited to their environment are more likely to survive and reproduce.
Explanation:
The requirements for evolution by natural selection are;
C.the fertile offspring of individuals that are well adapted to their environment will make up the greater proportions of the next generation.
H.individuals better suited to their environment are more likely to survive and reproduce because
Natural selection refers to basic mechanism of evolution where by organisms develop traits or characters that will make them to adapt, survive and reproduce in their environments thereby transferring those traits or characters to their next generations.
It is survival and reproductive mechanism.
B, because a mutation is by no means a dominant trait. #markbrainlyest
