Public Quiz: Unit 3 : Environments and Genetics (Science) - Preparatory 1 - Science

Question 1

What percentage of energy is typically transferred from one trophic level to the next in an energy pyramid?

50%

10%

90%

1%

Question 2

In the commensal relationship with the Nile crocodile, what does the Egyptian plover bird benefit from?

Access to the crocodile's prey.

Feeding on food remains between the crocodile's teeth.

A nesting site provided by the crocodile.

Protection from predators by the crocodile.

Question 3

What is the scientific field that studies the transmission of genetic traits from parents to offspring?

Genetics

Ecology

Anatomy

Physiology

Question 4

What is the role of producers in an ecosystem's energy flow?

They generate their own food and are the initial source of energy for other organisms.

They break down dead organic matter.

They consume other organisms for energy.

They regulate water cycles in the ecosystem.

Question 5

According to the one gene - one enzyme hypothesis, what is the role of a gene in expressing a hereditary trait?

Directly forming the protein itself.

Storing excess enzymes for later use.

Breaking down proteins into enzymes.

Producing a specific enzyme that leads to protein formation.

Question 6

Which of the following animals is an example of a carnivore?

Rabbit

Bear

Lion

Horse

Question 7

What is an example of a harmful mutation that specifically affects newborns?

Changes in skin color for adaptation

Severe muscular dystrophy

Lactose tolerance

Seedless fruits

Question 8

For what significant contribution is Gregor Mendel considered the founder of genetics?

Concluding that each hereditary trait is controlled by a pair of genetic factors.

Identifying the components of chromosomes.

Developing techniques for genetic engineering.

Discovering the double helix structure of DNA.

Question 9

What constitutes a biological community within an ecosystem?

Various populations of different species inhabiting the same environment.

All living organisms and non-living components in an area.

A single living organism belonging to a specific species.

A group of individuals of the same species in a specific place.

Question 10

What field of science has advanced significantly due to the foundational work of Gregor Mendel?

Genetic engineering.

Planetary science.

Thermodynamics.

Chemical synthesis.

Question 11

Which part connects the two chromatids of a chromosome?

The centromere

The gene

The nucleotide

The histone

Question 12

What is the direct outcome of a specific enzyme produced by a gene, leading to the expression of a hereditary trait?

Formation of a protein

Breakdown of nucleotides

Replication of DNA

Creation of a centromere

Question 13

What term describes the path of energy transfer in the form of food from one organism to another in an ecosystem?

Food chain

Energy pyramid

Trophic level

Food web

Question 14

What scientific hypothesis did Beadle and Tatum affirm regarding genes?

One gene - one enzyme

Theory of evolution by natural selection

Central dogma of molecular biology

Cell theory

Question 15

What percentage of energy is typically lost when moving from one trophic level to the next in an energy pyramid?

90%

1%

10%

50%

Calculating your results... almost there!

Public Quiz: Unit 3 : Environments and Genetics (Science) - Preparatory 1