The Candid Test On Science Chapter Test 15

32 Questions | By Itzelldestiny21 | Updated: Mar 20, 2022 | Attempts: 332

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If you are a big fan of science then every new chapter must bring a new revelation for you. The fifteenth candid test on science below covered most of the topics covered this year. Give it a shot and note down the topic you have difficulty tackling. All the best!

Questions and Answers

1.

1. Which did Charles Darwin personally observe while visiting the different Galápagos Islands?
- A.
  
  A. finches of the same specie
- B.
  
  B. fossils of closely related mollusk
- C.
  
  C. mockingbirds with different trait
- D.
  
  D. tortoises with varying shell sizes
2.

2. Which is true because of comparative embryology?
- A.
  
  A. A frog embryo resembles an adult frog
- B.
  
  B. Male and female eagle embryos have wing
- C.
  
  C. The embryos of all animals appear different
- D.
  
  D. Turtle and human embryos have a tail
3.

3. Which is an example of an adaptation?
- A.
  
  A. All African cheetahs have a similar DNA and genetic makeu
- B.
  
  B. Both a human and a gorilla have opposable thumbs for grasping objects.
- C.
  
  C. Polar bear fur is better camouflage on ice floes than brown bear fur
- D.
  
  D. Sparrow and finch wings allow for quick bursts of speed during flight
4.

Scientists believe human arms and whale flippers were inherited from a common ancestor
5.

The tailbone of a human is a structure that serves no practical purpose.
6.

Hawk wings and grasshopper wings allow for sustained flight, but these structures evolved separately
7.

Humans can have their appendixes removed with few, if any harmful effects.
8.

Constant allele frequencies in a population
9.

Reduction in number of alleles, resulting in a population that is genetically similar
10.

a small, separated population with a unique genetic makeup
11.

After returning from his voyage on the HMS Beagle, which did Darwin assume?
- A.
  
  A. Fossil evidence shows that species have changed over millions of years.
- B.
  
  B. Galapagos tortoises had reached a genetic equilibrium on the islands.
- C.
  
  C. South American finches changed after coming to the Galápagos Islands
- D.
  
  D. Tropical mockingbirds of the same species had different traits.
12.

Which is the definiton of evolution?
- A.
  
  A. genetic differences in a species
- B.
  
  B. parents passing traits to offspring
- C.
  
  C. the appearance of new life forms
- D.
  
  D. the change of species over time
13.

Which is an example of camouflage
- A.
  
  A. A group of macaws isolated on an island have uniquely shaped beaks.
- B.
  
  B. The leafy sea dragon looks more like a plant than an animal
- C.
  
  C. The thick feathers of the great horned owl make it a nearly silent flier.
- D.
  
  D. The viceroy butterfly’s colors match the monarch butterfly’s colors.
14.

African cheetahs, which suffered a dramatic drop in population, rebounded in number to create a population of unusually similar genetic animals. This is called
- A.
  
  A. a bottleneck
- B.
  
  B. genetic equilibrium
- C.
  
  C. speciation
- D.
  
  D. the founder effect.
15.

1. Scientists think human arms and whale flippers were inherited from a common ancestor.
16.

The tailbone of a human is a structure that serves no practical purpose
17.

Hawk wings and grasshopper wings allow sustained flgiht, but these structures evolved seperatley
18.

Humans can have their appendixes removed with few harmful effects
19.

Darwin referred to the selective breeding of domesticated animals as
20.

The evolution of an elongated beak by most woodpecker species is called an
21.

Comparing the three white furred offspring of one polar bear mother to the one white furred offspring of a second polar bear mother is called
22.

Peacocks developing large tails, as a result of a large tailed males being selected more frequently by females is called
23.

Which was the first conclusion Darwin made soon after returning from the Galápagos Islands?
- A.
  
  A. Natural selection was the evolutionary mechanism for species change.
- B.
  
  B. New species of finches could emerge through small ancestral changes.
- C.
  
  C. Variety among Galápagos birds resulted from evolutionary changes
- D.
  
  D. Wild finch diversity explained the breeding of domesticated animals.
24.

2. Which bird trait is an example of a derived trait?
- A.
  
  A. claw
- B.
  
  B. feather
- C.
  
  Tail
- D.
  
  Wing
25.

Which explains why cytochrome c provides a broad-ranged comparison of evolutionary relationships
- A.
  
  A. Amino acids prevent significant molecule change in the enzyme.
- B.
  
  B. ATP molecules steadily change cytochrome c structure over time.
- C.
  
  C. The compound evolves during times of accelerated evolution
- D.
  
  D. The molecule experienced little change over long periods of history