Lab Exercise nos. 1 and 2 (Continuation) Flashcards
Organisms
-no two organisms are identical (across Plants and Animals, Individuals of the same species, Macroscopic and Microscopic sizes)
Individuals of the same species
-have similar species characteristics but also possess individual characteristics
Variation
- includes both similarities and differences
- organism’s basic qualities; allow it to survive on its constant changing environment
- makes an organism unique
- can be brought about by either genetic, environmental, or a combination of both (nature vs. nurture or genetic vs. environmental)
Genotypic variance
-variation in phenotype due to differences in genetic make-up among individuals
Environmental variance
-variation in phenotype due to differences in environment among individuals
Causes of Variation
- Genotypic variance
2. Environmental variance
Classification of Variation
Morphological, Physiological, Behavioral, and Sexual
Can you find organisms that are exactly the same?
NO. Regardless of the Plants and Animals, Individuals of the Same Species, and Macroscopic and Microscopic Sizes, you cannot find two organisms that are exactly the same.
Species characteristics
Characteristics being shared by individuals belonging to that species (e.g. earthworms all have segmented bodies)
Individual characteristics
Behavioral or structural differences
In what sense is variation inclusive?
Variation is more inclusive in the sense that it includes both similarities and differences.
What is one referring to when one says, “variation in phenotype”?
You are referring to the allele that is present that makes it different from each other.
What can the environmental variance affect?
It can affect our phenotype or genes we possess.
