In your question that ask on which of the following observation led Darwin to start thinking about evolution. I think that the answer is A. The animals on the Galapagos Islands were recognizable as similar to their counterparts in other regions of the world, but had range of noticeable differences from those counterparts. Many animals also had small variations form island to island
The correct sentences are the following:
A) Antibiotic resistance in bacterial populations is caused by natural selection of bacteria that inherit mutations that make them resistant to the antibiotics.
C) Crossing-over causes a shuffling of allele combinations during meiosis as the alleles from each parent form new combinations on homologous chromosomes.
E) When two bacteria are linked during conjugation, the donor cell passes DNA to the recipient cell which causes genetic recombination.
Explanation:
These three options are associated with the generation and preservation of genetic diversity
The name for a huge sheet of ice covering many square miles is an Ice Cap.
Because it can affect their food chain. Food chain because if any other animal die or got less population so it will affect the animal who gets energy from it means eat it so that animal population get low and so on you know.
The word Current would suggest that weather would be the answer instead of Climate or atmosphere.