Question 1

Match between columns
                        Premises: causes harm to aquatic organisms; burns tree leaves and drives loss of soil nutrients
Little Salmon River
China and India are the greatest emitters of sulfur dioxide
rising sea levels
poor agricultural practices
plastic pollution
logging of tropical rainforests
chlorofluorocarbons
a red-cockaded woodpecker found only in old-growth pines of the Gulf and Atlantic coastal plain
black rhinos, due to being hunted for their horns
carbon dioxide

Accepted Answer

The Answer of Great Pacific Garbage Patch and biodiversity hot is...

Question 2

Match between columns
                        Premises: primary producers are chemosynthetic bacteria and archaea
main producers are dinoflagellates
when newly formed, it is deep, clear, few nutrients, and low primary productivity
mixed salt and fresh water; high primary productivity
area of greatest species richness
organisms are adapted to the mechanical force of the waves and to tidal changes
the type of rock present, its depth, and temperature affect species composition along its length

Accepted Answer

The Answer of estuary and streams and ocean shores and is...

Question 3

Match between columns
                        Premises: the most structurally complex
youngest of all the biomes
perennial cacti and drought-resistant shrubs
trees shed their leaves and become dormant in winter
biome with the coldest temperatures
sometimes called the "lungs of the Earth"
the most species-rich biome
oldest of all the biomes
tropical grasslands with a few scattered shrubs and trees
shrub root systems may extend down to 60 meters
most extensive biome
dominant plants are drought-resistant shrubs adapted to fire

Accepted Answer

The Answer of chaparral and tropical rainforest and desert and is...

Question 4

For the monarch butterfly, farming has increased the use of ____ plants, which has further decreased the availability of nectar plants and ____.

Accepted Answer

Farming has increased the use of herbicide-resistant crops, which destroy milkweed plants, the primary food source for monarch butterfly larvae. As a result, the availability of milkweed plants has decreased, leading to a decline in monarch butterfly populations.

Question 5

Ultimately, what is the greatest threat to biodiversity?

Accepted Answer

While all of these factors can contribute to biodiversity loss, ultimately the biggest threat is the actions of humans who damage and destroy ecosystems through activities such as deforestation, overfishing, pollution, and climate change.

Question 6

The best way to reclaim an ecosystem that is extensively damaged is to ____.

Accepted Answer

Ecological restoration is the process of intentionally restoring an ecosystem to a more natural state, with a focus on restoring its structure, functions, and biodiversity. This approach involves assessing the damage to the ecosystem, identifying the causes of the damage, and taking steps to address those causes. It may involve removing invasive species and restoring native species, as well as implementing measures to improve soil health and water quality. Ecological restoration can be a long-term process, but it is often the most effective way to restore the health and functionality of an extensively damaged ecosystem.

Question 7

Although extinction is a natural process and is ongoing, it is likely we are in a time of ____, an event in which many different kinds of organisms become extinct in a relatively short period.

Accepted Answer

The text mentions that we are likely in a time of mass extinction, which is an event in which many different kinds of organisms become extinct in a relatively short period.

Question 8

Desertification is mainly caused by ____.

Accepted Answer

Poor agricultural practices such as overgrazing, overcultivation, and improper irrigation can lead to desertification by damaging the soil and reducing its ability to support plant growth. The other options (lack of rain, too much precipitation, deforestation, and erosion) can also contribute to desertification, but they are not the main cause.

Question 9

Very high concentrations of ____ accumulates in large predatory fishes such as swordfish, bluefin tuna, and albacore tuna, which may cause developmental abnormalities when consumed by pregnant women.

Accepted Answer

Methylmercury is a neurotoxin that can cause developmental abnormalities in fetuses when consumed by pregnant women. This toxin accumulates in large predatory fishes such as swordfish, bluefin tuna, and albacore tuna due to biomagnification in aquatic food chains.

Question 10

The Great Pacific Garbage Patch is a region of the north central Pacific where a high concentration of confetti-like plastic particles swirls slowly around an area as large as the state of ____.

Accepted Answer

The Great Pacific Garbage Patch is estimated to be between 700,000 and 15 million square kilometers, which is roughly the size of Texas or three times the size of France. Therefore, choice D, Texas, is the best answer.

Question 11

Pandas are an example of a(n) ____ species that is in danger of extinction because they are dependent on disappearing bamboo forests.

Accepted Answer

Pandas are considered an endemic species because they are native to specific regions in China and depend heavily on bamboo forests that are their primary habitat. The term "endemic" refers to species that are found only in a particular area and nowhere else in the wild.

Question 12

In a hydrothermal vent community pictured here, the typical consumer is a(n) ____.

Accepted Answer

The answer of In a hydrothermal vent community pictured here,...

Question 13

The photos of the Muir Glacier taken in 1941 (left) and 2004 (right) demonstrate the consequences of____.

Accepted Answer

The answer of The photos of the Muir Glacier taken...

Quiz 19: The Biosphere and Human Effects

Match each key concept with its correct description.

Match each description with the correct aquatic ecosystem.

Match each description with the appropriate biome. Some choices may be used more than once.

For the monarch butterfly, farming has increased the use of plants, which has further decreased the availability of nectar plants and .