Lesson 20: Evolution Unit Test Biology B Unit 1: Evolution

Evolution can be described as the changes which arise in the characteristics of a particular species over time. Evolution is favoured by natural selection. With time, those species which are better adapted to live in an environment are able to survive and pass on their characteristics to their offsprings. The theory of evolution by the means of natural selection was proposed by Charles Darwin which is generally accepted by the world.

1. a) derived character

2. adaptation

3. could be generalized to any population of organisms.

4. Mutations have arisen that may have altered allele frequencies.

5. a description of a trait or habitat.

6. c) birds and reptiles share a number of inherited characteristics

7. phenotype

8. Prokaryotes.

9. many possible genotypes, producing many possible phenotypes.

10. b) whether the mutation makes some lizards more fit for the environment that other lizards

11. genetic equilibrium

12. Geographic barriers

13. common ancestry.

14. radioactive dating

15. 1 nonrandommating;

 (2) small population size;

  (3) immigration or emigration;

  (4) Mutations;

  (5) Natural Select

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy

answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus