Can someone check my answers, please? (My answer is ***)
1. Which of the following species would have the greatest chance of going extinct?
a species with a slow reproduction rate and very little genetic variation living in a changing environment***
a species with a fast reproduction rate and lots of genetic variation living in a changing environment
a species with a fast reproduction rate and lots of genetic variation living in a stable environment
a species with a slow reproduction rate and very little genetic variation living in a stable environment
2. Which of the following is believed to be common among all mass extinction events?
the type of species that went extinct
the number of species that went extinct
the type of event that causes the extinction
a significant change in the global climate***
3. Imagine two populations of penguins living in the same ecosystem. One population begins to exchange stones as a mating ritual while the other begins to dance by shifting from one foot to another. Individuals from each population will only mate with individuals that display the appropriate mating ritual. Which type of reproductive isolation mechanism does this scenario describe?
Behavioral Isolation***
Geographic Isolation
Habitat Isolation
Temporal Isolation
4. Human-created climate change is caused by
increased carbon dioxide in the air.***
decreased burning of fossil fuels.
increased use of green energy sources.
increased oxygen in the air.
5. Imagine the environment of an ecosystem changes such that it floods more often. Which species would most likely increase in numbers in this new environment?
an insect species that lives on the leaves of short bushes
a flightless bird species that makes its nest on the ground
a tree species that are tolerant of excess water***
a mammal species that burrows underground
Nvm, I just turned it in and all of it is correct.
Your answers are correct:
1. Which of the following species would have the greatest chance of going extinct?
- a species with a slow reproduction rate and very little genetic variation living in a changing environment
2. Which of the following is believed to be common among all mass extinction events?
- a significant change in the global climate
3. Which type of reproductive isolation mechanism does this scenario describe?
- Behavioral Isolation
4. Human-created climate change is caused by:
- increased carbon dioxide in the air.
5. Which species would most likely increase in numbers in this new environment?
- a tree species that are tolerant of excess water
To check your answers, I will go through each question and provide the correct answer along with an explanation of how to arrive at that answer.
1. Which of the following species would have the greatest chance of going extinct?
The correct answer is "a species with a slow reproduction rate and very little genetic variation living in a changing environment." To determine this answer, we need to consider two factors that contribute to a species' likelihood of extinction: reproduction rate and genetic variation. A slow reproduction rate makes it difficult for a species to recover and adapt to changing conditions. Additionally, very little genetic variation limits the ability of a species to adapt to new challenges. When combined with a changing environment, these factors increase the likelihood of extinction.
2. Which of the following is believed to be common among all mass extinction events?
The correct answer is "a significant change in the global climate." Mass extinction events are often associated with major shifts in the Earth's climate, such as ice ages, volcanic eruptions, or asteroid impacts. These events cause widespread environmental changes that disrupt ecosystems and lead to the extinction of numerous species.
3. What type of reproductive isolation mechanism is described in the scenario?
The correct answer is "Behavioral Isolation." Reproductive isolation mechanisms prevent individuals of different species, or even the same species, from successfully mating and producing offspring. In the given scenario, two populations of penguins have developed different mating rituals involving stone exchange and dancing. These behaviors establish a barrier to reproduction between the two populations and demonstrate behavioral isolation.
4. What causes human-created climate change?
The correct answer is "increased carbon dioxide in the air." Human activities, such as burning fossil fuels for energy, release large amounts of carbon dioxide into the atmosphere. This excess carbon dioxide traps heat from the sun, leading to a rise in global temperatures and climate change.
5. Which species would most likely increase in numbers with increased flooding in the environment?
The correct answer is "a tree species that are tolerant of excess water." Increased flooding would represent a new environmental condition favoring species that can tolerate excess water. While the other options may have their own advantages and adaptations, the tree species would likely benefit the most from increased water availability, leading to an increase in their numbers in the new environment.
Remember, it's always important to provide explanations and justifications for your answers to ensure a thorough understanding of the topic.