m1

Question 1

are group of populations
that can interbreed and as a
consequence, genes either actually
or potentially exchanged.

Answer 1

Species

Question 2

Components of natural selection

Answer 2

1.Variation
2. Competition
3.Adaptation
4.Selection

Question 3

refers to differences in traits or characteristics within a species.

Answer 3

variation

Question 4

• genetically controlled
• results from activity of genes
• cannot be altered
• e.g. hair and skin color, blood
  group, finger prints, and sex

Answer 4

Inherited Variation

Question 5

• result from an individual’s
  activities or nutrition
• environment plays a crucial role
• cannot be inherited
  e.g. language proficiency, athletic
  skills, body build, obesity, sun tan,
  etc.

Answer 5

Acquired Variation

Question 6

• entirely genetically controlled and
  cannot be altered by external
  conditions
• no intermediates
• e.g. ABO blood group, genetic
  defects (color blindness, albinism,
  sickle cell anemia, etc.)

Answer 6

Discontinuous variation

Question 7

• influenced by genes and
  environment
• there is a range of phenotypes
  between two extremes
• e.g. shade of hair color, height,
  weight, etc.

Answer 7

Continuous variation