PRACTICE QUESTIONS-BIOLOGICAL DIVERSITY

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Use the following information to answer the next question.

When similar species coexist in an area, they have slightly different niches. They do not compete for resources; instead they divide the resources among them.

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The suckerfish, Echeneis, has a dorsal fin modified to form a sucker-like organ, which helps it attach to the underside of a shark. This interaction provides protection to the suckerfish, but it does not harm the shark.

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Use the following information to answer the next question.

Organism X lives in the body of organism Y. X feeds on nutrients from the body of Y without providing any benefit to Y. The nutrients that X takes from Y are needed by Y in order to survive.

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PRACTICE QUESTIONS-BIOLOGICAL DIVERSITY

Posljednje ažuriranje about 7 years ago

Napomena autora:

Key

Which of the following statements about variations within species is false?

Variations help species adapt to changing environments

Variations better equip species for survival

Variations produce new traits in species

Variations make species static

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Variations within a species are not caused by

fertilization

mutation

meiosis

cloning

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Variations within species are the result of

growth

nutrition

metabolism

sexual reproduction

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The term niche describes

a group of the same organisms in the same area

the role an organism plays in an ecosystem

where an organism lives

what an organism eats

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Several species of finches, each with a different beak shape, were discovered on the Galapagos Islands. The best explanation of why these finches evolved a variety of beak shapes is that they adapted to

obtain different types of food

defend against different enemies

gather different nesting materials

perform different courtship rituals

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Use the following information to answer the next question.

When similar species coexist in an area, they have slightly different niches. They do not compete for resources; instead they divide the resources among them.

The type of arrangement described is called

specialization

natural selection

artificial selection

resource partitioning

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Commensalism, parasitism, and mutualism are examples of a dependence relationship called

niches

predation

symbiosis

extirpation

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Use the following information to answer the next question.

What type of dependency does the given interaction suggest?

Parasitic

Mutualistic

Cooperative

Commensal

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Use the following information to answer the next question.

Organism X lives in the body of organism Y. X feeds on nutrients from the body of Y without providing any benefit to Y. The nutrients that X takes from Y are needed by Y in order to survive.

This situation describes a relationship that is

parasitic

mutualistic

cooperative

commensal

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The most likely reason a desert fox has larger ears than the other two species of foxes is to ensure that it can

regulate its body heat and temperature

detect impending danger

locate its potential prey

find running water

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All phenomena listed are examples of

selection

mutation

variation

competition

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Reproduction of this type is known as

budding

binary fission

sexual reproduction

asexual reproduction

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The union of the male sperm cell and the female egg cell is reffered to as

pollination

fertilization

parthenogenesis

asexual reproduction

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The difference in the neck amoung giraffes is referred to as

diversification

discrete variation

artificial selection

continuous variation

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An offspring having the same traits as both of its parents is a result of

crossbreeding

pure breeding

artificial breeding

random breeding

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A red flower and a white flower are crossed. If the offspring has all red flowers, then it can be concluded that:

red is a recessive triat and white is dominant

red is a dominant trait and white is recessive

red and white are both dominant traits

red and white are both recessive traits

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It can be concluded that eye colour is a

heritable characteristic

dominant characteristic

recessive characteristics

non-heritable characteristics

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The explanation for Charles's inability to play the piano is that playing the piano is a

heritable characteristic

recessive characteristic

dominant characteristic

non-heritable characteristic

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Which of the following statements summarizes the given information?

Genes exist in pairs.

The human cell contains 46 chromosomes.

Chromosomes are composed of DNA and protein.

Genes determine hereditary traits.

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Which of the following statements does not describe a major function of genetic material?

It replicates itself

It stores information

It transfers information

It catalyzes chemical reactions

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Which of the following statements about cell division is not correct?

Mitotic division produces eight cells at one time

Mitosis takes place in somatic body cells

The process of meiosis occurs only in sex cells

The process of meiosis produces a total of four cells, during two divisions

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Which of the following functions is not achieved through meiosis?

Sexual reproduction

Production of gametes

Growth and cellular repair

Recombination of genetic material

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Mitosis is a type of cell division that is responsible for all of the following functions except

reducing the number of chromosomes by half

maintaining the number of chromosomes

helping in growth and cellular repair

increasing the size of the organism

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An advantage of the jellyfish reproducing sexually is that sexual reproduction

produces identical offspring

allows for less crossing over of genetic material

requires less energy to complete

provides genetic variation in the offspring

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In terms of energy consumption and the number of offspring that can be produced, asexual reproduction generally requires

a lot of energy and produces a lot

of offspring

a lot of energy and produces a

few offspring

little energy and produces a lot

of offspring

little energy and produces a few offspring

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During the Industrial Revolution, natural selection affected the pepper moth population in that

lighter colouring became more common in the population

darker colouring became more common in the population

different predators consumed the

pepper moths

the population became extinct

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The scenario is an example of

artificial selection

natural selection

evolution

cloning

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Alberta farmers are raising high-quality cattle by using modern reproductive technologies such as

Cloning

natural selection

genetic engineering

artificial insemination

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Compared to temperate regions, equatorial regions have

a larger number and variety of species

a smaller number and variety of species

fewer species with more variety

roughly the same number and variety of species, but with different characteristics from those in temperate regions

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Which of the following categories has the highest species diversity on the planet?

Birds

Plants

Insects

Mammals

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How many species of organisms are currently known to scientists?

thousands

millions

billions

trillions

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A reasonable hypothesis to explain why no new Calvaria trees began growing is that

dodos are required to pollinate the Calvaria flowers

spice traders used Calvatia wood for buildings and fires

pollution made it impossible for young Calvaria trees to grow

the Calvaria nut had to pass through the digestive system of the dodo before it could begin to grow

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A species like the grizzly bear is best described as

a biological species

an impacted species

an extirpated species

a bioindicator species

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Which of the following reasons cannot be given as a cause of the decrease in worldwide biodiversity?

A greater dependence on wood for fuel

An increase in the demand for consumer goods

An increased need to clear land for agriculture

A decrease in human population growth in developing countries

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Canada has designated many areas as national parks. According to a wildlife conservationist, the best reason to develop national parks is

to save the natural biodiversity of the area by maintaining the interactions that naturally occur there

to maintain a pristine region of land to be admired by all citizens now and into the future

to bolster local and provincial economies by providing a setting ideal for tourism

to stop the over-hunting of animals from legal and illegal hunting

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Big, healthy corm cobs were developed by early aboriginal people through the use of

cloning

random chance

mutating genes

artificial selection

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