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Worksheets🌈 Quizizz #8 English 🌈 Africa Storyline
Total questions: 20
Worksheet time: 3600secs
What happens when two species have overlapping niches?
The two species will learn how to cooperate with each other.
Increase in population size for both species.
Competition for resources and potential decrease in population size or loss of one species in that ecosystem.
There is no effect or impact on the population size or survival of either species.
What are some strategies used by species to avoid competition?
Mutualism and symbiosis.
Predation and parasitism.
Territoriality and aggression.
Niche partitioning
This laboratory procedure is known as
CLONING
gel electrophoresis
chromatography
use of a dichotomous key
This technique used to analyze DNA involves the
synthesis of new DNA strands from subunits
separation of DNA fragments based on size
production of genetically engineered DNA molecules
removal of defective genes from DNA
Describe the trend shown in the graph.
As the volume decreases, the mass stays the same.
As the mass decreases, the volume increases.
As the volume increases, the mass increases.
As the mass increases, the volume stays the same.
What conclusions can you draw from this graph?
The deer population went down over time.
The deer population went up over time.
The deer population went up quickly, then down, but then stayed the same.
There are less deer because of hunters
The variable that is measured.
Controlled Variable
Dependent Variable
Independent Variable
What is the dependent variable shown in the graph?
Time (min)
Blood insulin levels (mg/ml)
Hunters killed elephants with tusks resulting in more tuskless elephants. The hunters were the ___ pressure changing the population
Selective
Unusual
Usual
exceptional
Why did the percentage of elephants that were tuskless increase over time?
More elephants decided to be tuskless
The tuskless elephants were able to reproduce and pass the trait down
More elephants had their tusks fall off
The tuskless elephants all died
The study of inheritance patterns and variation in organisms is called _________________.
gene
genetics
meiosis
hybrid
Characteristics that can be inherited are called ________.
Ex: Eye color, hair color, height, etc.
gene
chromosome
trait
karyotype
Coiled up DNA
A picture of the chromosomes in a cell
the alleles an individual inherited organized by function
A gene is:
a part or segment of DNA that codes for a heritable trait
traits inherited from the parents
the DNA in a cell organized by size and staining pattern
a threadlike structure of DNA packaged with proteins
allele
alternate forms of a gene/trait. Ex: blue eyes, brown eyes, green eyes.
the DNA in a cell organized by size and staining pattern
coiled up DNA
A genotype is
a sequence of DNA that codes for a heritable trait
the physical expression of the genes. What we see (red hair, blue eyes, etc)
the genetic traits that an individual inherited from their parents. (Ee, DD, Bb)
homozygous
having no alleles for a particular gene
having identical (the same) alleles for a particular gene
having different alleles for a particular gene
