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castortr0y [4]
3 years ago
14

An earthquake causes the size of a deer population to drop rapidly over a short period. allele frequencies shift. what mechanism

of evolution does this situation illustrate? g
Biology
1 answer:
Maru [420]3 years ago
4 0
Genetic drift or bottleneck effect
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The city of Los Angeles wants to know if there is a connection between physical fitness and air pollution. Fifty volunteers from
zheka24 [161]

Answer:

Control group: volunteer stationary bike riders in a pollution-free chamber

Experimental group: volunteer stationary bike riders in a chamber filled with air pollutants common to Los Angeles

Independent variable: exposure to air pollution

Dependent variable: The heart rates (physical fitness) of the volunteer riders.

Explanation:

In a scientific experiment, data is compared between the control group and experimental group to ascertain the effect of the independent variable on the dependent variable. A control group is the group in an experiment that is not treated with the independent variable i.e. the independent variable is controlled while the experimental group is the group that is treated with an independent variable.

N.B: The independent variable is the variable controlled by the experimenter in order to influence the dependent variable (measurable outcome).

In this experiment, the independent variable is the AIR POLLUTION the volunteer riders are exposed to while the dependent variable is the PHYSICAL FITNESS/ HEART RATES of the volunteer riders, which is dependent on the exposure to air pollution (independent variable).

The control group in this experiment is the volunteer riders placed in a POLLUTION-FREE CHAMBER where the independent variable cannot influence or have any effect on the measurable variable (dependent). The experimental group is the volunteer riders placed in a CHAMBER FILLED WITH AIR POLLUTANTS. The independent variable (air pollution) has been changed in the experimental group.

4 0
3 years ago
The main function of this macromolecule include muscle development, catalyst activity and defense against disease
Liula [17]

The correct answer is protein.

Proteins are macromolecules composed of amino acids with the wide range of structures. Protein functions are diverse:  

• structural proteins-maintaining the cell shape, (for example, proteins are structural elements in connective tissues like cartilage and bone in vertebrates),  

• Enzymes - catalyze the biochemical reactions in cells-.

•  Monitors- changing their activity in response to metabolic signals

• Part of the extracellular matrix or involved in intercellular communication…


6 0
3 years ago
Water is warmed by the sun and
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And cooled by night...
7 0
3 years ago
bacteria that feed off of food in human gut and provide essential nutrients to their host are an example of
LUCKY_DIMON [66]

Answer:hmmm

Explanation:

4 0
3 years ago
Read 2 more answers
In eukaryotic cells, the mRNA is processed and migrates from the _________ to the _________.
HACTEHA [7]
The DNA replicates it’s information in a process involving many enzymes. The DNA code for production of messenger is RNA. I’m eukaryotic cells, the MRNA is processed and migrates from the nucleus to the cytoplasm.

Hope this helps!! ;))
Have a grat day!! <3
4 0
3 years ago
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