Question

4. What does "scientific adaptation" mean? How is it different from the way we use the term "adaptation" in everyday language? 5. What two processes are necessary for adaptation to occur? 6. Genetic variation occurs randomly and increases the diversity of a population. Natural selection is nonrandom and decreases the diversity of a population. How do these two processes work together to produce adaptations in populations over time? 7. What are two possible outcomes of adaptations in lineages over time? How can both outcomes represent adaptation when they are so different? 8. Go online, in your backyard or in your neighborhood and find an example of a species adaptation and describe it here. Make sure to describe how this adaptation conveys an advantage to the individuals that have it.

Answer 1

Answer :

4)

Scientifically adaptation means any change in the structure or behavior of a species which helps it to become better fitted to survive and reproduce in its environment.

In daily usage we use adaptation in the meaning of taken from or inspired from. Example this program is adapted from that book. Where as scientifically its the positive changes for better fitting.

5)

Physical and behavioral changes are two important or essential roads to adaptation. Genetic changes and natural selection are the base factors causing physical or behavioral change.

6)

Genetic variation brings diversity in individuals of a population. As a result there will be changes in disease resistance, food habits, anatomy etc. When there are adverse natural events, natural selection comes into play. Natural selection selects individuals with better adaptability to the new environment. Thus natural selection selects the most fit from the genetically diverse and makes it more unique.

7)

By adaptation either longevity of lineage is increased or reproductive success. If there is a disease resistant gene in a population it will be selected by natural selection and it will tide over adverse events, getting more longevity and it has nothing to do with reproductive success.

Where as another adaptation helps population for better reproduction either in chance or success or number of offspring. This eventually lead to better adaptation.

8)

Ferns are seen near the small pond of the garden. This is because they need water for fertilization. For the gametophyte. This is an adaptation for survival and alteration of generations.