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Selection and Variation

Authored by Baihaqi Ulma

Biology

10th Grade

NGSS covered

Used 2+ times

Selection and Variation
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40 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The graph shows the percentage of a population of plants with a given number of flowers. What type of variation is the number of flowers?

Continuous

Discontinuous

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A group of scientists want to investigate the effect of different soil conditions on plant growth. They cloned a plant to get a total of 7 plants and grew them in different nitrate concentrations for 14 days.They then repeated this with a different species of plant. The table given shows their results. The scientists cloned the plants so they were genetically identical. Which of the following best explains why this was important?

Because the plants would all grow the same amount

Because any changes in growth would be due to environmental variation alone

Because any changes in growth would be due to genetic variation alone

Because the plants all looked the same

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of the following conclusions is correct, based on the data given?

Plant growth is due to genetic and environmental factors.

Plant growth is due to environmental factors alone.

Plants of the same species will grow the same amount, no matter where they are grown.

Plant growth is due to genetic factors alone.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Give the correct key term for the differences in the characteristics of organisms.

Variation

Phenotypes

Genotypes

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Give the correct key term for the variation that is caused by differences in alleles that are inherited or caused by mutations.

Genetic variation

Generic variation

Mutagenic variation

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Variations in the stem length can be caused by mutations. Which of the following correctly defines mutations?

Changes in the phenotype

Changes in the DNA base sequence

A section of DNA that codes for a protein

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Horse breeding for specific desired traits is an example of which type of evolutionary evidence?

Artificial selection

Embryology

Fossils

Biochemical molecules

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