Chapter 8: Living Systems and the Environment

Quiz
•
Science
•
6th - 8th Grade
•
Hard
+5
Standards-aligned
Mr. Baker
Used 1+ times
FREE Resource
46 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is an example of an effect an abiotic factor could have on a population in an ecosystem?
An insect invasion kills a population of trees.
An increase in rainfall causes an increase in the population of many plants.
A fungus infects a population of bats, and many of the bats die.
An increase in fruit flies leads to an increase in a population of spiders.
Answer explanation
Rainfall is an abiotic factor. TEKS 6.12A
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Examine the image.
Which hierarchical level of organization does the image represent?
organism
population
community
ecosystem
Answer explanation
The image has various populations of different species in the same area, which is a community. TEKS 6.12C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of relationship includes parasitism and commensalism?
symbiotic
predatory
competitive
cooperative
Answer explanation
Symbiotic relationships include parasitism, commensalism, and mutualism. TEKS 6.12B
Tags
NGSS.MS-LS2-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nutria are large semiaquatic rodents that were imported from South America to the United States by fur traders. In the late 1940s, a hurricane dispersed nutria throughout southeast Texas. They feed on native seedlings and saplings—native organisms that are naturally found in the ecosystem—and have cleared wide areas of floodplains and marshland along the Gulf Coast.
Which is most likely the effect of the introduction of nutria into southeast Texas ecosystems?
The nutria depend on native herbivores for food.
The nutria compete with native organisms for abiotic factors.
The nutria compete with native herbivores for food.
The nutria compete with native carnivores for food.
Answer explanation
Nutria are not native organisms. They were brought to the area by a hurricane. They will compete with native herbivores for the food in that area. TEKS 6.12B. 6.12A
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-2
NGSS.MS-LS2-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is a population?
all tigers in a refuge
all the types of fish in a lake
all the types of reptiles in a zoo
all the types of rodents on a prairie
Answer explanation
A population is all the organisms of the same species that live in the same area at the same time. TEKS 6.12C
Tags
NGSS.MS-LS4-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Predators capture weak members of a population as prey. How does this benefit the population of the prey?
The remaining members are motivated to fight back against the predator.
The predators take all of the prey population’s resources.
More resources become available for the remaining members.
Less resources become available for the remaining members.
Answer explanation
If predators remove the weak members of a population as prey, there will be more resources available for the remaining members. TEKS 6.12B
Tags
NGSS.MS-LS2-2
NGSS.MS-LS2-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pink salmon return to the same waters in which they were born to mate. Researchers collected data on the pink salmon returning to Auke Creek and the average water temperature. Table 1 shows the calendar dates of the highest percentage of pink salmon returning to Auke Creek in Juneau, Alaska, to mate in six years spanning from 1971–2010. Table 2 shows changes in the creek during the same time period.
The data in Table 1 and Table 2 show the relationship between salmon and which abiotic factor?
water availability
atmosphere
temperature range
light availability
Answer explanation
The data supports the statement that salmon depend on specific temperature ranges to reproduce. TEKS 6.12B, 6.12A
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
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