Polar bears are capable of swimming over 40 miles in search of food. the population of polar bears is declining due to a shortage of available sea ice which can cause the polar bear to drown because it wasn’t able to reach its food before becoming too exhausted. the population continues to decline. identify which factor of climate change is causing this to happen to the polar bears.
a: shifting habitats
b: changing migration times
c: food shortages
d: warming of the ocean
Answers: 1
Another question on Biology
Biology, 21.06.2019 20:00
How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?
Answers: 1
Biology, 22.06.2019 13:20
Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.
Answers: 1
Biology, 22.06.2019 22:00
American scientist, linus pauling, was one of many scientists racing to discover the molecular structure of dna. pauling initially thought that the molecule was a triple helix. later, james watson and francis crick unveiled their double helix model, which turned out to be an accurate description of the molecule's shape. why did watson and crick succeed when pauling failed?
Answers: 1
You know the right answer?
Polar bears are capable of swimming over 40 miles in search of food. the population of polar bears i...
Questions
Physics, 15.11.2019 17:31
History, 15.11.2019 17:31
Social Studies, 15.11.2019 17:31
History, 15.11.2019 17:31
Biology, 15.11.2019 17:31
