3rd Quarter Biodiversity

Question 1

Theory of use and disuse-

Answer 1

Organs not in use then it will disappear, while organs in use will develop.

Question 2

Theory of Acquired Characteristics-

Answer 2

Believed to be inherited by their offspring and passed by the next generation.

Question 3

Example of Lamarck’s Theory

Answer 3

Giraffe and their short necks:
From short neck to long neck by stretching to reach high leaves. Each generation stretched a little more and that longer neck was passed to their babies.

Snake and Limbs:
Older snakes had legs as they adapted to crawling, they used their limbs less. Over generations it disappeared.

Question 4

Theory of Evolution by Natural Selection- .

Answer 4

Living organisms adapt and change

Question 5

Darwin’s Finches-

Answer 5

Was able to see 13 varieties of finches, which varied in size and shape, from island to island.

Question 6

5 Mechanism of Natural Selection

Answer 6

Overpopulation- Over reproduce
Competition- Compete for food and space
Variation- Two individuals are not the same
Adaptation- Better suited to the environment
Speciation- Favorable=increase & Unfavorable=disappear

Question 7

Fossil Evidence-

Answer 7

Traces of organisms that lived in the past