Diversity, Interdependance, & Variation
What is a species?
a group of organisms that have the same structure and can reproduce with one another.
What is a discrete variation and give an example.
An either/or characteristic. Examples may vary
What is the full name of DNA?
Deoxyribonucleic acid
What is the difference between extinction and extirpation?
Extinction means there are no more of an organism left. Extirpation is only a local extinction
What is the planet that is closest to the Sun?
Mercury
What are the 3 different kinds of symbiotic relationships? Explain each one.
Mutualism- both organisms benefit
Commensalism- one organism benefits, the other is neither harmed or benefiting
Parasitism- one organism benefits, the other is harmed
What is a continuous variation and give an example.
A characteristic that has a wide range of forms. Examples may vary
If a black bear has 38 chromosomes in a gamete, how many will it have in a zygote?
76
What is artificial selection?
Selecting and breeding individuals with desired traits
What is a producer?
An organism that makes its own food
What is the difference between a community and a population?
A population is when members of the same species live in a specific area and share the same resources
A community is populations of different species living in the same area
What is the first cell of a new individual called?
Zygote
What is incomplete dominance?
two different alleles are present on a gene but neither is dominant or recessive, resulting in an intermediate.
List 3 human causes of extinction and extirpation.
Answers may vary.
What is a material called that does not allow light through it?
Opaque
What process is meant by the phrase "survival of the fittest"?
Natural Selection
What are the 4 female reproductive structures on a plant called?
Stigma, style, ovary, ovule
If a homozygous recessive black cat is crossed with a hybrid white cat, what is percentage that an offspring will be black?
25%
What is in-situ conservation?
What is the measure of distance an object moves in a given time?
Speed
What is the full name of the person who came up with the theory of natural selection?
Charles Darwin
Give two advantages and one disadvantage of asexual reproduction
Advantages: doesn't require any gametes, can produce many individuals, quicker, less energy
Disadvantage: no variation = not well adapted to environmental changes
Explain the steps and processes involved in meiosis.
Parent cell duplicates DNA, splits into 2 daughter cells, each daughter divides again to create a total of 4 daughter cells
Are humans good or bad maintaining biodiversity on Earth? Defend your answer
Answers may vary
What does the Earth do in a 24 hour period?
Rotates 1 full turn about it's axis