List and describe 2 advantages of sexual reproduction?

1). It creates genetic diversity within a species

2). There is a natural level of disease resistance throughout the species

Explanation:

1. It can encourage the growth of brain cells. = Sexual activity increases the production of brain cells within the hippocampus. This is the area of the brain that manages memory. Larger cells and more connections form with a greater frequency of mating.

2. It improves health. = Sexual activity can also promote a stronger immune system, stronger muscles, and may even lower certain cancer risks.
One unique benefit of sexual reproduction is that it increases levels of oxytocin, which is often called the “love hormone.” Sexual activity increases the generosity people have when they are emotionally engaged with a mate.

Their thick layers of fur, and high percentage of body fat

Explanations:

Organisms typically have specialized traits, which enable their survival in certain harsh climates. Polar bears are distinctive for their white fur, and fatty layers.

Their fur, which allows them to camouflage in snowy white tundras and swaths of sea ice, is actually made up of two layers; these are soft, shorter dense hairs, along with guard hairs which are longer and thicker. These trap warm air, keeping the bears warm and insulated.Thick layers of body fat called blubber, insulate the bears against gusty cold winds and icy water; temperatures at the arctic average well below freezing. Additionally, the fat keeps them buoyant as they swim, apart from acting as a food store (fat stores energy) when their food source becomes more scarce.