Variation, Niche, & Survival
Reproduction
Genetics
Cell Division
Humans & Biodiversity
100
This type of niche is occupied by a species that only has one or two sources of food
What is "narrow niche"?
100
This is an example of sexual reproduction
What is "increased genetic diversity"?
100
This is the molecule that carries genetic information
What is DNA?
100
The division of somatic (body) cells during regular growth and development is called this.
What is mitosis?
100
This describes the widespread cutting down of trees in an area. It threatens biodiversity because the habitats of many species are destroyed in the process.
What is "deforestation"?
200
This type of symbiotic relationship occurs when one organism benefits and the other is unaffected
What is "commensalism"?
200
This is the male part of the flower (as a whole)
What is "stamen"?
200
Being able to roll or not roll your tongue is an example of this kind of heritable variation
What is discrete variation?
200
The division of cells to make egg and sperm is called this.
What is meiosis
200
This is a type of biotechnology where fertilization of an egg and sperm occurs in a Petri dish (outside the woman's body).
What is "In-Vitro Fertilization, or IVF"?
300
This is an example of variation within a single species
[Answers will vary]
300
These are the 4 types of asexual reproduction
What are:
1) budding
2) binary fission
3) spores
4) vegetative reproduction?
300
Using the letter "R", a homozygous dominant genotype would be written like this.
What is "RR"?
300
The process in which DNA replicates and divides twice to produce daughter cells with half the DNA as parent cells is called this.
What is meiosis?
300
The grizzly bear is said to be ___ from the prairies.
What is "extirpated"?
400
These groups of organisms can make fertile offspring
What are "species"?
400
This occurs when the pollen from one plant is carried by wind, water, or animals (like bees) to the ovule of another plant
What is "cross-fertilization"?
400
These are different versions of the same trait. For example: brown eyes, blue eyes, green eyes are all versions of the "eye color" trait.
What are "alleles"?
400
Organisms that reproduce asexually undergo this type of cell division
What is mitosis?
400
This is the term given to describe an organism with genes from more than one species. (Like the blue strawberry).
What is "transgenic"?
500
Foxes prey on ducks
Ducks consume algae
Algae reduce the amount of oxygen in a pond
Salmon require water with a high level of dissolved oxygen
Which of the following changes is most likely to occur as a result of decreased fox population?
A.) A decreased number of ducks
B.) A decreased number of salmon
C.) An increased volume of dissolved oxygen
D.) An increased number of predators of foxes
What is C.) An increased volume of dissolved oxygen
500
Most bacteria reproduce using this method
What is binary fission?
500
Brown eyes are dominant to blue eyes
If a heterozygous mom makes a baby with a homozygous dominant dad, the baby will have ___% chance of having brown eyes.
What is 100%?
500
If the cell shown undergoes mitosis, this is the number of chromosomes each daughter cell will have.
What is "10 chromosomes"?
Or, what is "5 pairs of chromosomes"?
500
A Christmas tree grower wants to breed Balsam Fir trees so that they shed fewer needles. The breeder believes this Balsam Fir trait will be in high demand because people won’t have to clean the needles off the floor around the tree as much. Breeding for a purpose is called this.
What is "artificial selection"? or "selective breeding"