Wednesday, November 21, 2007

Theme 1: SCIENCE AS A PROCESS

SCIENCE AS A PROCESS
Description: Science is a way of knowing. It can involve a discovery process using inductive reasoning, or it can be a process of hypothesis testing.
Clarification: You would post here examples of how the scientific process has been used to develop our knowledge about how the biological world works.

5 comments:

Navneet said...

Homology of the bones of the forelimb of mammals. Although these structures show considerable differences in form and function, the same basic bones are present in the forelimbs of humans, cats, bats, porpoises, and horses. These are different in appearance and function but are derived from the same body part in a common ancestor. Show close evolutionary relationship.

Muskan said...

An example of science as a process is the endosymbiosis theory. This theory suggests that a critical stage in the evolution of eukaryotic cells involved endosymbiosis relationships with prokaryotic organisms. According to this theory, energy-producing bacteria may have come to reside with larger bacteria, eventually evolving into what we know as mitochondria

Navneet said...

Comparison of the DNA of different species provides strong evidence for evolution. Species deduced from the fossil record to be closely related are more similar in their DNA than are species thought to be more distantly related.

Navneet said...

Comparison of the DNA of different species provides strong evidence for evolution. Species deduced from the fossil record to be closely related are more similar in their DNA than are species thought to be more distantly related.

Muskan said...

The evolution of horses has been one of the best-studied cases in the fossil record. Examination of the fossils of the horses provide a particularly well-documented case of how evolution has proceeded through adaptation to changing environments.