Question 13 Species that are purposely or accidentally introduced to a new geogr
ID: 94025 • Letter: Q
Question
Question 13
Species that are purposely or accidentally introduced to a new geographical region
frequently form hybrids with native species
die out quickly
can become serious pests by killing the native species
experience increased mutation rates that help them adapt to the new ecosystem
______________
20
Match the following terms with correct definition.
biome
population
ecosystem
community
all of the individuals of a species in a specific area
comprises all of the biotic and abiotic factors in a particular area
interacting species occupying a given habitat
large scale interactions of species defined on land by the type primary type of vegetation
_______________
Question 24
Which of the following is an example of a species distributed in a random distribution?
oak trees that drop their seeds to the ground
a herd of elephants traveling to the watering hole
dandelion seeds that are blowing in the wind
nesting penguins
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Question 33
________
Which of the following is a threat to biodiversity?
habitat loss
overharvesting
climate change
all of the above
_____________
Some theories around why more diversity in species or areas known as [a___________] are found near the [b_______] are: more energy or greater [c_____] of the ecosystems, giving the opportunity for more [d________].
age
speciation
equator
size
hotspots
evolution
Species that are purposely or accidentally introduced to a new geographical region
Answers:frequently form hybrids with native species
die out quickly
can become serious pests by killing the native species
experience increased mutation rates that help them adapt to the new ecosystem
Explanation / Answer
answer 13: species introduced accidently can create havoc since they compete with native species for for food and space and out compete native species.
answer 20:
biome- (d) - a vast organisation of plants and animals resent over distinct region.
population- (a)- a group of same species for example only human, or only elephants.
ecosystem- ( b) - it is a combination of biotic and abiotic factors like plants, human, rocks, rivers, climate, etc.
community- (c) - a population of different species interacting with each other in a particular area. which includes human dog, plants, fishes, etc.
answer 24:- dandlion seed - danlion seeds get blowed away to germinate at distinct area thus starting a new population else where. this gives a same population in small-small patches.
answer 33: habitat loss, the first most important reason for diversity loss - due to loss of habitat species are not able to lay eggs or raise their offspring. now if offspring are not reaching to maturity and dieng due to habitat loss then automatically species diversity will be affected.
a)- hotspot - an area having richness of species or diversity.
b)- equator - equator provide a climate which is suitable for reproduction as well as development of biotic factor, hence species richness is abundant here.
c)- age - the older the ecosystem the richer is the biodiversity there, since this ecosystem harbours aundance of species.
d)- evolution - due to interaction of species species will evolve much by breeding together.
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