someone please check my answers please
Based on appearances, which group of animals likely has the greatest genetic diversity?(1 point)
bears
horses
birds
whales******
The crown-of-thorns starfish is a particularly successful invasive species. It has several traits that lead to its proliferation on the Great Barrier Reef except that(1 point)
it eats a wide variety of foods.
it has no predators.
it breeds rapidly.*****
it feeds on large quantities in a short time frame.
Aside from direct harm, what secondary issue do invasive species present?(1 point)
They might damage the habitat that other organisms rely on.
They may not have any predators.
They might introduce other organisms like viruses and bacteria.*******
They may be able to eat all kinds of native organisms.
What happens after coral is bleached?(1 point)
It releases algae into the ocean.
It produces peroxides.
It dies immediately.
It is susceptible to starvation.******
The most biodiverse ecosystem in the world is likely a(1 point)
tundra.
desert.***********
coral reef.
rainforest.
The Florissant Fossil Beds in Colorado are home to several massive redwood stumps that were subjected to a special kind of fossilization millions of years ago. What service could these fossilized stumps most likely provide?(1 point)
soil creation
lumber*********
shelter
tourism
Biodiversity Unit Test
8 of 14Items
Item 8
Marine biologist Dr. James Estes researched sea otters and their habitats in the Aleutian Islands of the North Pacific Ocean. Sea otters feed on animals such as crabs and urchins. Islands with sea otters contained a lot of kelp, a seaweed that is an important food source for fish and other sea animals. Islands without otters had large populations of urchins but no kelp. Given this information, what term best describes the otter in the Aleutian Islands ecosystem?(1 point)
keystone species
producer
apex predator
consumer************
Biodiversity Unit Test
8 of 14Items
Item 8
Marine biologist Dr. James Estes researched sea otters and their habitats in the Aleutian Islands of the North Pacific Ocean. Sea otters feed on animals such as crabs and urchins. Islands with sea otters contained a lot of kelp, a seaweed that is an important food source for fish and other sea animals. Islands without otters had large populations of urchins but no kelp. Given this information, what term best describes the otter in the Aleutian Islands ecosystem?(1 point)
keystone species*******
producer
apex predator
consumer
Your friend John is having trouble with his compost bin. The material in his compost pile doesn’t seem to be decomposing well. You take a sample of the pile and check for the presence of microorganisms under the microscope. You see that there are indeed microorganisms; however, they don’t appear to be growing very fast. John says that he regularly mixes his compost pile to expose it to oxygen. What is the most likely explanation for this problem?(1 point)
The temperature may be too high for microorganisms to tolerate.
Inorganic materials may have been included in the compost pile.
Inappropriate food waste may have been included in the compost pile. *
The temperature may not be high enough to encourage microorganism growth.
“Green” material has high amounts of (1 point)
phosphorus.
magnesium.*******
nitrogen.
carbon
Some students decide to plant their own garden. They want to eat a more plant-based diet. For meat, they will buy locally from a butcher. Any remaining scraps will be composted and used as fertilizer for their garden.
Which part of this plan represents recycling to reduce their waste?
(1 point)
eating a plant-based diet
planting a garden
buying locally****
composting scraps
1. Frog
2. Birds
3. It eats a wide variety of food
4. They might introduce other organisms like viruses and bacteria
5. It is susceptible to starvation
6. Coral reef
7. Tourism
8. Keystone species
9. The temperature might not be high enough to encourage microorganism growth
10. Nitrogen
11. Composting scraps
The rest you have to type out yourselves but I hope this helps! :)
1. Grasshopper
2. Birds
3. It breeds rapidly and has no predator in this environment
4. They might introduce other organisms like viruses and bacteria
5. It is susceptible to starvation
6. Coral reef
7. Tourism
8. Keystone species
9. The compost pile contain incorrect amount of green and brown
10. Nitrogen
11. Composting scraps
The rest you have to type out yourselves but I hope this helps! :)
I’ll be testing these answers, I really hope they’re right because i cant fail or my moms gonna be reaallyy mad 😅
Sloth is 100% correct thank you so much i literally love you now-
The answers are switched up, I cannot use these answers provided, please write the actual answers and not the letters! Thank you, i appreciate your effort!
I'm testing out sloths answers ill let yall know if there are correct in a minute
sloth is correct thank you!
Uh I'm confused are these answers for connects 7th grade
correct
Dontworryabtit - Which questions do you need help with? All 3 of them or just a few? What don't you understand if you don't understand any of them, I'll explain right here. In question number 12 it is talking about the foodchain, with plants, bison, elk, and wolves. The questions states that bison completely disappear. With this in mind, think about how the other animals respond to this environmental change. Know that if one of the wolves prey is gone, what might it look like, same thing with what the bison ate, what happens to them. As you should know resiliency means that something can recover quickly from something that happens. For example say you got the flu, and got over it quickly. Biodiversity is the variety of life in an ecosystem, think about all the different things you'd find in a specific area; that's biodiversity. Keep that in mind for Number 12. Sorry if you still need help with the others you might need to ask your learning coach, have a good rest of your day.
THANK YOU SLOTH OMG NOW I CAN GET PAST THIS AND GET ON WITH THIS MISERABLE SCHOOL YEAR AND ON TO THE REST OF MY LIFE
Autumn COULD be correct, BUT that's only IF they were the answer to OP's questions. Sloth! xx is much more accurate and easy to read.
Need2know is correct on all of their answers trust them. i got a 100% thanks to them.
What are the answers
Are you correct Need2know?
Can someone help me with the word problems number 12 13 and 14?
may autumn's effort rest in peace
the answer to 1. is actually grasshopper, if the question is about which one is a keystone species
I need help with the written problems, can someone please help me? I am genuinely confused.
BRO TYSM WALT
thx sloth
Based on the food web provided, the grasshopper is most likely to be a keystone species.
Here are the answers.
1:b
2:c
3:c
4:b
5:a
6:d
7:d
8:d
9:a
10:a
11:a
The rest are short answer.
Thank me later :)
Hey guys, I am about to take the test! I will be posting answers in a bit! x
no more Minecraft for you @Autumn
You're welcome! Do you need any more help?
You're welcome! If you need any more help, don't hesitate to ask.
Plants, bison, elk, and wolves are all members of an ecosystem. The bison and elk are both primary consumers in this ecosystem, while the wolves are a predator. Over time, the bison completely disappear. Give an example of how the ecosystem may respond to this change, and explain how this relates to both resiliency and biodiversity. (4 points)
When bison completely disappear from the ecosystem, the elk population may increase, leading to competition for food and higher vulnerability to predators. This may lead to the overgrazing of plants by the elk, causing a negative impact on the plant population. The wolves, being a predator, may also be impacted by the disappearance of their prey. This may lead to a domino effect on the entire ecosystem, affecting the biodiversity of the ecosystem.
With regards to resiliency, the ecosystem's ability to recover from the disappearance of bison depends on the complexity of the food web and the level of biodiversity. The higher the number of species present in the ecosystem, the greater the likelihood of one species disappearing without causing a ripple effect throughout the entire ecosystem. So, the greater the biodiversity, the greater the resiliency of the ecosystem.
You're welcome! Let me know if you need help with anything else.
Beavers, large members of the rodent family in North America, are often referred to as “ecosystem/keystone engineers” by wildlife managers. Ecosystem engineers are described as animals that create, alter, or destroy a habitat. Beavers contribute to river ecosystems by bringing down old and dead trees along riverbanks. They use these trees to make their dams. Although these dams are primarily used for protection and food storage, scientists report that these dams change the surrounding environment in different ways.
Given this information, in three to five sentences, describe a potential benefit that beavers contribute to the ecosystem as keystone engineers and describe a plausible impact that the removal of beavers could have on the surrounding ecosystem.
One potential benefit that beavers contribute to the ecosystem is that they create wetlands through their dams, which can provide habitat for various aquatic plants and animals. These wetlands also help regulate nutrient cycling, water quality, and flood control. The removal of beavers can have a negative impact on the surrounding ecosystem, as it can lead to a reduction in the creation of wetlands, reduced water retention capacity, and downstream flooding. Additionally, without beavers, the river ecosystem may undergo a significant change, impacting the biodiversity and resiliency of the ecosystem.
Which one of the following animals is most likely to be a keystone species, based on the food web provided?
grasshopper
frog
deer
Mouse
The Northern Pacific seastar is a particularly successful invasive species. Which of the following explains why it is so successful in the waters of southeastern Australia, outside of its native environment?
The Northern Pacific seastar is so successful as an invasive species in the waters of southeastern Australia because it has no natural predators there, allowing it to easily outcompete native species for food and space, and reproduce rapidly. Additionally, the seastar can tolerate a wide range of temperatures and salinity levels, making it adaptable to diverse environments.
The Northern Pacific seastar is a particularly successful invasive species. Which of the following explains why it is so successful in the waters of southeastern Australia, outside of its native environment?
It can cling to the bottom of ships and other vessels.
It consumes the eggs of the spotted handfish.
It is accustomed to a cold climate.
It breeds rapidly and has no predators in this environment.
It breeds rapidly and has no predators in this environment explains why the Northern Pacific seastar is so successful as an invasive species in the waters of southeastern Australia outside of its native environment.
Some students are trying to convince their parents to let them raise backyard chickens. They want to present a logical argument on how raising your own chickens reduces food waste. In three to five sentences, construct an argument for how raising livestock yourself can help you reduce, reuse, and recycle waste.
Raising your own chickens can help reduce food waste by feeding them food scraps that would otherwise be thrown away or composted. This can save money, as less chicken feed would be required. Additionally, chicken manure can be collected and composted, producing fertilizer for the garden. This way, the food waste is recycled and reused. By adopting this practice of raising livestock at home, individuals can actively reduce food waste and produce their own organic produce.
Biodiversity Unit Test
1. grasshopper
2. birds
3. it breeds rapidly and has no predators in this environment
4. they might introduce other organisms, like viruses and bacteria
5. the coral is susceptible to starvation
6. coral reef
7. tourism
8. keystone species
9. turning the pile
10. nitrogen
11. eliminating transportation and packaging pollution
It seems like you provided the answers to the Biodiversity Unit Test, rather than a question. If you need help with a specific question, please let me know.
Whats the largest bird species
The largest bird species in the world is the ostrich.
Hi
Hello! How can I assist you?
Dolphins are animals that live in water, but they do not have gills. What made this suggest about dolphins?
The fact that dolphins do not have gills, but are able to live in water suggests that they are mammals. Dolphins rely on air to breathe and must come up to the surface to breathe. As mammals, they also have hair at some point during their life cycle, have mammary glands for nursing their young, and are warm-blooded.
Which biome best supports animals that feed mostly by grazing on grasses and small shrubs?(1 point)
Responses
savanna
mixed forests
polar desert
tropics
The biome that best supports animals that feed mostly by grazing on grasses and small shrubs is the savanna.
Based on the data below, which group of animals are genetically diverse?
# of different type of species in the world
Birds 9,000+
Bears 8
Horses 350+
Whales 90
(1 point)
Responses
birds
horses
whales
bears
Based on the data provided, birds are the most genetically diverse, with over 9,000 different types of species.
Which describes a primary role of the pioneer species in an ecosystem?(1 point)
Responses
prevent fertile soil from washing away
break down rock into soil
provide food for small animals
protect other species from danger
The primary role of pioneer species in an ecosystem is to break down rock into soil and prepare the area for other species to grow. Thus, the correct option is "break down rock into soil".
What happens after coral is bleached?(1 point)
Responses
The coral dies immediately.
The coral produces peroxides.
The coral releases algae into the ocean.
The coral is susceptible to starvation.
After coral is bleached, the coral is susceptible to starvation. The algae that usually lives on coral to provide energy and its vibrant color is expelled, leaving the coral looking white or "bleached." Without the algae to produce energy through photosynthesis, the coral may starve and eventually die if the symbiotic relationship cannot be reestablished.
The most biodiverse ecosystem in the world is likely a(1 point)
Responses
tundra.
cold desert.
coral reef.
taiga.
The most biodiverse ecosystem in the world is likely a coral reef.
Marine biologist Dr. James Estes researched sea otters and their habitats in the Aleutian Islands of the North Pacific Ocean. Sea otters feed on animals such as crabs and urchins. Islands with sea otters contained a lot of kelp, a seaweed that is an important food source for fish and other sea animals. However, Islands without otters had large populations of urchins but no kelp since sea urchins feed on this seaweed. Since sea otters are able to control the population of urchins, this allows for kelp to freely grow in those areas. Given this information, what term best describes the otter in the Aleutian Islands ecosystem?(1 point)
Responses
keystone species
apex predator
producer
decomposer
The term that best describes the otter in the Aleutian Islands ecosystem is "keystone species". As the presence of sea otters influences the kelp forests in the ecosystem, allowing for the survival of kelp and other plant species as well as the animals that rely on them as a food source.
Dolphins are animals that live in water, but they do not have gills. What might this suggest about dolphins?(1 point)
Responses
They do not need to release carbon dioxide.
They do not need oxygen.
They have another structure to obtain oxygen.
They make their own food.
This suggests that dolphins have another structure to obtain oxygen, as they do not have gills to extract oxygen from the water like fish do. Dolphins must come to the surface periodically to breathe air, suggesting they have a modified respiratory system to extract oxygen from the air.
Which of the following is one response to higher temperatures in a habitat?(1 point)
Responses
more fat storage
thicker fur
more sweating
more movement
One response to higher temperatures in a habitat could be more sweating. As the body temperature of animals increases, they may produce more sweat to help cool down their bodies through evaporation. Other responses such as increased movement seeking shade, panting, or seeking evaporative cooling, may also occur.
Why is fever an effective response to pathogens?(1 point)
Responses
It can inactivate pathogens in the body.
It can signal the body to run
It can signal the body to fight.
It can remove pathogens from the body.
Fever is an effective response to pathogens because it can inactivate the pathogens in the body. When the body is exposed to a foreign substance
Beavers, large members of the rodent family in North America, are often referred to as “ecosystem/keystone engineers” by wildlife managers. Ecosystem engineers are described as animals that create, alter, or destroy a habitat. Beavers contribute to river ecosystems by bringing down old and dead trees along riverbanks. They use these trees to make their dams. Although these dams are primarily used for protection and food storage, scientists report that these dams change the surrounding environment in different ways.
Given this information, in three to five sentences, describe a potential benefit that beavers contribute to the ecosystem as keystone engineers and describe a plausible impact that the removal of beavers could have on the surrounding ecosystem.
(4 points)
Beavers, large members of the rodent family in North America, are often referred to as “ecosystem/keystone engineers” by wildlife managers. Ecosystem engineers are described as animals that create, alter, or destroy a habitat. Beavers contribute to river ecosystems by bringing down old and dead trees along riverbanks. They use these trees to make their dams. Although these dams are primarily used for protection and food storage, scientists report that these dams change the surrounding environment in different ways.
Given this information, in three to five sentences, describe a potential benefit that beavers contribute to the ecosystem as keystone engineers and describe a plausible impact that the removal of beavers could have on the surrounding ecosystem.
(4 points)
hello
bot
Beavers, large members of the rodent family in North America, are often referred to as “ecosystem/keystone engineers” by wildlife managers. Ecosystem engineers are described as animals that create, alter, or destroy a habitat. Beavers contribute to river ecosystems by bringing down old and dead trees along riverbanks. They use these trees to make their dams. Although these dams are primarily used for protection and food storage, scientists report that these dams change the surrounding environment in different ways.
Given this information, in three to five sentences, describe a potential benefit that beavers contribute to the ecosystem as keystone engineers and describe a plausible impact that the removal of beavers could have on the surrounding ecosystem.