Answer:
The correct answer is - option A. short and less complex.
Explanation:
A food web is a network of many food chains. The food chain is one pathway that describes the path of the animals finds food, it is linear representation. Food web shows all the plants and animals in connection with each other in the food web.
In the Arctic, biodiversity is comparatively low with fewer species of flora and very less number of fauna that include caribou, hare, musk ox pika, and insects are the primary consumers.
Secondary consumer eats herbivores and these organisms are normally are top trophic levels in arctic include fish and polar bear. So the consumers, primary consumer and predators or secondary consumers form a short and less complex.
Thus, the correct answer is - option A. short and less complex.
There are four principles at work in evolution—variation, inheritance, selection and time. The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits.
Mutation. this happens when a cell copies its DNA to divide. its more common than you may think, a "typo" occurs every 100, 000 or so nucleotides, thats about 120, 000 "typos" every time a cell divides.
Bone marrow transplant i think. I hope this helps but im not 100% sure
