Semester 2 Review

Semester 2 Review

and word wall Q3

Word Wall Words

• Lichen

• Estuary

• Symbiosis

• Biodiversity

• Carrying Capacity

Word Wall Words

• Lichen

• Estuary

• Symbiosis

• Biodiversity

• Carrying Capacity

Word Wall Words

• Lichen

• Estuary

• Symbiosis

• Biodiversity

• Carrying Capacity

Word Wall Words

• Lichen

• Estuary

• Symbiosis

• Biodiversity

• Carrying Capacity

Word Wall Words

• Lichen

• Estuary

• Symbiosis

• Biodiversity

• Carrying Capacity

6.ESS3.3 - Impact of Human Activity

Assess the impacts of human activities on the biosphere including conservation, habitat management, species endangerment, and extinction.

Multiple Choice

As the local wildlife biologist, it is your job to determine which of these would be most successful in increasing the number of bald eagles in your area. Which of the following would increase the bald eagle population?

• protection of natural habitat

• increased use of pesticides

• increased hunting

Multiple Choice

Why is deforestation a major problem in terms of its effect on global warming?

• Plants' root systems absorb many toxins from the soil which might contaminate the water supply.

• Plants remove significant amounts of carbon dioxide gas from the atmosphere through the process of photosynthesis.

• Plants' root systems hold the soil in place, and when they are gone, there is increased pollution from runoff.

Multiple Choice

What is one example of how humans impact global warming?

• Contour plowing by farmers increases the level of rainwater run-off.

• Burning coal and oil increases the level of carbon dioxide in the atmosphere.

• Copper wire in power transformers increases the speed of the electrical currents.

Multiple Choice

Scientists have invented biodegradable plastics by mixing natural materials with plastic. These biodegradable plastics require a special chemical treatment to help them decompose. The scientists are now attempting to reduce the plastic content in the biodegradable plastics. The improved plastic will decompose quickly without any chemical treatment. Which of these statements explains why this research is important?

• Biodegradable plastics are stronger and more durable than non-biodegradable plastics.

• The use of biodegradable plastics increases the production and use of plastic materials.

• The use of biodegradable plastics helps in the reduction of pollution caused by regular plastics.

Multiple Choice

A dam is built across a river to generate electricity. What is likely effect of the construction of a dam on the river?

• increase in the size of fish in the river

• increase in the water flow in the river

• decrease in the population of aquatic organisms in the river

6.LS2.7 - Auditory and visual methods of communication

Compare and contrast auditory and visual methods of communication among organisms in relation to survival strategies of a population.

Multiple Choice

Black rat snakes can produce a foul-smelling musk that they can spread using their tails. Which stimulus most likely causes this behavior?

• changes in living space

• availability of prey

• presence of predators

6.LS2.2 - Symbiosis

Determine the impact of competitive, symbiotic, and predatory interactions in an ecosystem.

Multiple Choice

You notice that cuckoo birds lay their eggs in a crow’s nest and displace the eggs laid by the crow. The crows raise the chicks, thinking of them as their own. What sort of impact does this relationship have on bird?

• Positive: crow. Negative: cuckoo​.

• Negative: crow. Positive: cuckoo​

• Positive: crow.​ Positive: cuckoo.

6.LS2.3 - Food webs and energy pyramids

Draw conclusions about the transfer of energy through a food web and energy pyramid in an ecosystem.

Multiple Choice

The image shows the model of four food chains created by a student. Which statement best describes the relationship among the primary consumers in the food chains?

• All primary consumers have parasitic relationships among one another.​

• All primary consumers form mutualistic relationships among one another.

• All primary consumers have competitive relationships among one another.​

6.LS2.4 - Biomes

Using evidence from climate data, draw conclusions about the patterns of abiotic and biotic factors in different biomes, specifically the tundra, taiga, deciduous forest, desert, grasslands, rainforest, marine, and freshwater ecosystems.

Multiple Choice

A student claims that both cactus and sand are biotic factors of the desert. Is the student correct and why?

• No; the sand is made up of small rock fragments

• No; 94% of the cactus is water.

• Yes; the cactus and sand don't move

We did not get to these standards before benchamrk:

• 6.LS2.5 - Invasive species in TN

• 6.LS2.1 - Impact of environmental variables on population

• 6.LS2.6 - Ecosystems change over time

• 6.LS4.1 - Change in biodiversity

• 6.LS4.2 - Maintaining biodiversity

• 6.ETS1.1 - Solutions for maintaining ecosystems and biodiversity