Question

Reproduction: Explain why asexually reproducing organisms are generally found in environments that do not change very much through time, while sexually reproducing organisms are very successful in environments that change dramatically through time.

Animal Behavior: How does an animal’s behavior aid survival and reproduction? Provide an example to illustrate your comments. In your response, be sure to include information from the reading to support your

Answer 1

The offspring of the organism is an exact copy of the parent in asexual reproduction. There is no chance of genetic diversity. If all organisms are nearly the same, then they are all suited to one type of environment. Sometimes there happen to be mutations in a species. If the environment only suits that mutated organism, the other non-mutated organisms will die off, leaving the mutated organism left, which will then reproduce and create more of that kind. Thus asexually reproducing organisms are generally found in environments that do not change very much through time, while sexually reproducing organisms there are genetic diversity which allow them very successful in environments that change dramatically through time

Sexual reproduction is advantageous in the natural world because it mixes two sets of genes, allowing for more possible outcomes in the next generation. Genetic diversity makes some individuals better adapted than others to handle illness, drought, or other factors of a changing environment. Therefore, the species as a whole is more likely to survive.

Behavior is an action carried out by muscles or glands under control of the nervous system in response to a stimulus. Animals shows different type of behaviors like muscles in throat to produce song, Releasing a scent to mark a territory, Carrying out a mating dance, Behaviors can and will be selected on by natural selection.

Communication through transmission and reception of signals Example: Fruit Fly Courtship Chemical odors that induce a response (Pheromones). Example: Queen Bee’s release a pheromone for reproduction

Survival animal also develop mating behaviors and choose the right mate to most efficiently reproduce. Mating behaviors include seeking or attracting mates, choosing potential mates, competing for mates, and caring for offspring. Different animals have different mating behaviors. Animals are promiscuous, monogamous, polygamous, polygyny, polyandry. Most animals also exhibit sexual dimorphism, which is when the male and females appear different within the same species. Animal is in a group and has mated with a female, he will protect that female from other males trying to mate with it

Mate choice will influence the evolution of the opposite sex, because certain traits will be chosen repeatedly. In many species of birds and mammals, and some species of other types of animals, males help raise the offspring. In these cases, females would benefit by choosing the male that can provide the best care the better the parent, the more offspring she is likely to rear.

In other species, males provide no care, but maintain territories that provide food, nesting sites, and predator refuges. In such species, females that choose males with the best territories will maximize their reproductive success.