Evolution Test

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Evolution Test - 40

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Question 1
1 / -0

Darwins finches are an excellent example of

A
Adaptive radiation

B
Seasonal migration

C
Brood parasitism

D
Connecting links

Solution

Divergent evolution also known as adaptive radiation is the process whereby one species radiates out into different environments and as a result produces organisms that look different from each other, and may have many other differences.
Darwin found that the finches found on different islands of galapagos islands differ one another mainly in size and bill shape due to different feeding habit but were closely related to one another. They evolved from a common ancestral seed- eating ground finches and living in a geographical area of south american mainland. Hence, its an example of adaptive radiation.
Question 2
1 / -0

_________ muscles are found attached to the tail bone of humans.

A
Cardiac

B
Smooth

C
Striped

D
Rudimentary

Solution

Tail bone is a vestigial organ found in human body. There are certain rudimentary muscles found attached to tail bones which are similar to that of monkey.
Question 3
1 / -0

Ancestor of man who first stood erect was

A
Australopithecus

B
Cro-magnon

C
Java-ape man

D
Peking man

Solution

Ancestor of man who first stood erect was australopithecus. The various species of Australopithecus lived during the Pliocene (5.3 to 2.6 million years ago) and Pleistocene (2.6 million to 11,700 years ago) epochs. Like humans, they were bipedal and they had small brains. Hence, option A is correct.
Question 4
1 / -0

Which of the following is the most primitive ancestor of man?

A
Homo habilis

B
Homo neanderthalensis

C
Australopithecus

D
Ramapithecus
Solution
Correct Answer- D
Explanation-
Ramapithecus was the most primitive hominid; known from India and East Africa in Late Miocene or Early Pliocene time (about 14 million years ago).
Ramapithecus was the earliest known hominid, some 5 or 6 times older than the oldest Pleistocene hominids.
The remains of Ramapithecus resemble closely the equivalent parts of the later Hominidae suggesting that they were the beginning of the lineage leading to humans.
Question 5
1 / -0

Which of the following process takes place in the petri dish?

A
Macroevolution

B
Microevolution

C
Adaptive radiation

D
Divergent evolution

E
Speciation

Solution
Question 6
1 / -0

The process in which organisms diversify from a common ancestor is known as ___________.

A
Natural selection

B
Adaptive radiation

C
Vestigial structure

D
Migration

E
Parallel evolution
Question 7
1 / -0

The scientific name of Java man is

A
Homo habilis

B
Homosapiens neandarthalensis

C
Homo erectus erectus

D
Australopithecus boisei

Solution

Scientific name of Java man is Homo erectus erectus. It is known from fossil remains found on the island of Java, Indonesia. A skullcap and thighbone discovered by the Dutch anatomist and geologist Eugene Dubois in the early 1890s. Java man was characterized by a cranial capacity averaging 900 cubic cm., a skull flat in profile with little forehead, a crest along the top of the head for attachment of powerful jaw muscles, very thick skull bones, heavy brow ridges, and a massive jaw with no chin.
Therefore, the correct answer is option C.
Question 8
1 / -0

Structures used for grasping is

A
1

B
2

C
3

D
4

E
5

Solution

Structure #1 is a human arm and hand, which can be used for grasping.
This had happened as a part of divergent evolution. It was explained by Darwin.
Divergent evolution occurs when two different species share a common ancestor but have different characteristics from one another. This is probably the type of evolution that first comes to mind when the topic of evolution comes up. After all, evolutionary theory teaches us that every form of life on Earth today developed from the first living cells! Over time, the original cells took vastly different paths of development and ultimately created the diversity of life on Earth—from trees to humans.
Divergent evolution occurs when a group from a specific population develops into a new species. In order to adapt to various environmental conditions, the two groups develop into distinct species due to differences in the demands driven by the environmental circumstances.
Darwin's finches are a good example of this. Darwin's finches are a group of about 15 different species of finches that live on the Galapagos Islands. Each separate species of finch adapted to a different diet, causing variation in their beak shape and/or size. All of them evolved from one species of finch that was a common ancestor.
Question 9
1 / -0

Red streaks are made up of iron oxides on some rocks, formed when iron in ocean reacts with oxygen and settled to the ocean bottom. This chemical and physical process occurs due to

A
Early reducing atmosphere of Earth

B
Evolution of cyanobacteria

C
Symbiosis of photosynthetic bacteria and protists

D
Adaptation of plants to terrestrial environments

E
Metabolic activity of the first heterotrophs
Question 10
1 / -0

According to Hardy-Weinberg theory, heterozygous individual is

A
$$\displaystyle p$$

B
$$\displaystyle { p }^{ 2 }$$

C
$$\displaystyle 2pq$$

D
$$\displaystyle { q }^{ 2 }$$

E
$$\displaystyle q$$

Solution

The Hardy–Weinberg principle, also known as the Hardy–Weinberg equilibrium states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences.
The Hardy-Weinberg equation is expressed as:
p² + 2pq + q² = 1
where p is the frequency of the "A" allele and q is the frequency of the "a" allele in the population.
In the equation, p² represents the frequency of the homozygous genotype AA, q²represents the frequency of the homozygous genotype aa, and 2pq represents the frequency of the heterozygous genotype Aa.
Therefore, the correct answer is option C.

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Evolution Test - 40

Result

Evolution Test - 40

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Rank

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SHARING IS CARING

Question 1

Adaptive radiation

Seasonal migration

Brood parasitism

Connecting links

Solution

Question 2

Cardiac

Smooth

Striped

Rudimentary

Solution

Question 3

Australopithecus

Cro-magnon

Java-ape man

Peking man

Solution

Question 4

Homo habilis

Homo neanderthalensis

Australopithecus

Ramapithecus

Solution

Question 5

Macroevolution

Microevolution

Adaptive radiation

Divergent evolution

Speciation

Solution

Question 6

Natural selection

Adaptive radiation

Vestigial structure

Migration

Parallel evolution

Question 7

Homo habilis

Homosapiens neandarthalensis

Homo erectus erectus

Australopithecus boisei

Solution

Question 8

1

2

3

4

5

Solution

Question 9

Early reducing atmosphere of Earth

Evolution of cyanobacteria

Symbiosis of photosynthetic bacteria and protists

Adaptation of plants to terrestrial environments

Metabolic activity of the first heterotrophs

Question 10

$$\displaystyle p$$

$$\displaystyle { p }^{ 2 }$$

$$\displaystyle 2pq$$

$$\displaystyle { q }^{ 2 }$$

$$\displaystyle q$$

Solution

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