The answer is letter A. evolution always improves organisms. Darwin did not state this idea because he observed that even if evolution happened to species, there were some species that failed to adopt on the new environment. The other choices are his ideas of natural selection which states that an organism can survive if it has heritable traits that can adopt with the environment.
Or they could have evolved to adapt to their environment. Because of these mutations, they’re more beneficial to their species and can survive.
Initiation is the first part of translation. the first thing that happens is an initiator tRNA molecule binds to a start codon in the mRNA, then more tRNA's with amino acids attach to the mRNA strand according to the codons on the strand then the process continues.
You didn't provide us with any statements regarding animal blubber but the reason why mammals that live in the arctic ocean have it is because it helps and keeps them 'warm' - it's a strong insulating factor.
Answer:
Explanation:
The greenhouse effect describes Earth's heat-reflective layer caused by atmospheric gases including carbon dioxide, methane and nitrous oxide. ... gases in the atmosphere absorb that heat, bouncing some back to the Earth's surface and ... (22,800 times the global warming potential of carbon dioxide), and water vapor.
