The graph below shows the population of mice in an ecosystem where the mice are not allowed to enter or leave.
Which best describes the population at point B?
A.The death rate is higher than the birthrate.
B.The birthrate is higher than the death rate
C.It has reached its carrying capacity
D.The population is decreasing
Answers
It’s birthrate is higher than its death rate
Natality, mortality, and growth in populations that exhibit a logistic growth model depend on the density. Option B.The birthrate is higher than the death rate
What is logistoc growth?
Populations exhibiting a logistic growth model depend on density.
Natality and mortality depend on the population size, meaning that there is no independence between population growth and population density.
When a population grows in a limited space, density rises gradually and eventually affects the multiplication rate. The population per capita growth rate decreases as population size increases. The population reaches a maximum point known as the carrying capacity, K.
The carrying capacity might be affected by different factors, known as limiting factors, which might be a result of the population density (for example, competition) or might be density-independent.
What is carrying capacity?Carrying capacity refers to the maximum point at which the environment can support a growing population.
K is a constant. It coincides with the population size when natality rate and mortality rate are equal to each other. This is the equilibrium point.
• If the population size, N, is inferior to K ⇒ the population still grows.
• When N approximates to K, the population's growth speed decreases.
• When N=K, the population reaches equilibrium,
• When N is superior to K (N>K), the population must decrease in size because there are not enough resources to maintain that size.
In the exposed example, option B best describes the population at point B. The birth rate is higher than the death rate. At this point the population is experiencing exponential increase in size.
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Related Questions
What proportion of tropical storms turn into hurricanes?
Answers
in the atlantic ocean, above the equator, there are typically 100 storms during hurricane season that begins this way. roughly 10% of these storms become tropical storms and only 6% produce winds that are strong enough to be classified as hurricanes.
Glaciers act as ___ in the water cycle, because they can store water for a long period of time
Answers
Glaciers act as reservoirs in the water cycle, storing water for a long period of time. They play a crucial role in regulating water supply, especially in regions that depend on glacier meltwaters. The retreat of glaciers due to global warming can have significant impacts on local ecosystems and water availability.
Explanation:Glaciers act as reservoirs in the water cycle because they can store water for a long period of time.
When water from precipitation or melting ice accumulates in glaciers, it gets stored as ice for hundreds or thousands of years. This stored water is released gradually over time, contributing to the overall water cycle. Glaciers play a crucial role in regulating water supply, especially during dry seasons or in regions that depend on glacier meltwaters.
An example of glaciers acting as reservoirs is the Grinnell Glacier in Glacier National Park. The retreat of the glacier due to global warming has led to a loss of summer meltwaters, affecting local ecosystems and water supplies.
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Which is a possible negative result of using renewable resources?
Answers
Answer:
Explanation:
h
The
cycle is not a nutrient cycle
Answers
Answer:water cycle
Explanation:
Biogeochemical cycles, such as the carbon, nitrogen, and phosphorus cycles, play a crucial role in ensuring the continuous availability of essential nutrients for all living organisms, including their recycling through the ecosystem and non-living world.
Explanation:Biogeochemical Cycles
Biogeochemical cycles refer to the processes responsible for the cycling of mineral nutrients through ecosystems and the non-living world. These cycles ensure that essential nutrients, which are vital for the growth and survival of all organisms, are reused and recycled within the environment. Among the significant nutrient cycles are the carbon cycle, nitrogen cycle, and phosphorus cycle. Every living organism relies on these cycles for nutrients that are crucial for their growth and development.
For instance, the carbon cycle involves plants taking in carbon dioxide during photosynthesis and releasing oxygen. The nitrogen and phosphorus cycles are critical in providing mineral nutrients to plants from the soil. These nutrients then flow through the ecosystem, supporting various forms of life, and are eventually returned to the soil and atmosphere where the cycle begins again.
Disruptions in nutrient cycles can lead to environmental issues such as nutrient leaching and a decline in soil fertility, impacting both plant and animal life. The condition of natural vegetation cover is essential in maintaining these cycles, as plants play a significant role in the absorption and release of nutrients.
How are rocks that contain oil
similar to a sponge?
Answers
What does Darwin’s theory of evolution explain about the natural world
Answers
Answer:
1). All living organisms are constantly involved in 'a struggle for existence'.
2). In a population, those that tend to survive and reproduce are the individuals whose variations gives them competitive advantage over the rest.
Explanation:
Darwin, thus, identified environmental pressures as the main cause of natural selection. They cause favourable variations to accumulate and unfavourable ones to be weeded out. Over thousands of generations, favourable variations, naturally selected by he environment, accumulate sufficiently to give rise to new species from ancestral species. Therefore, according to Darwin, natural selection, acting through environmental pressure, is the driving force behind evolutionary change in the natural world.
Darwin's theory of evolution explains that all life has evolved from a common ancestor through a process called natural selection. Natural selection involves individuals with advantageous traits being more successful at survival and reproduction, leading to these traits being more prevalent in subsequent generations. This theory is a fundamental part of understanding biological diversity and species change over time.
Explanation:Darwin's theory of evolution explains that all life has evolved and diversified from a common ancestor, primarily through a process he called natural selection. This process involves certain individuals within a population possessing more favorable adaptive characteristics, allowing them to survive, reproduce, and pass these characteristics onto the next generation. Over time, through natural selection, organisms evolve in response to their changing environment, leading to both the unity and diversity of life.
The theory of evolution by natural selection describes a mechanism for species change over periods of time. This was a groundbreaking concept that challenged the then-dominant belief that species were static and unchanging, as it proposed that species adapt and change in response to environmental pressures over generations. This concept was advanced by both Charles Darwin and Alfred Russel Wallace, who independently observed similar patterns across species and ecosystems.
Natural selection, according to Darwin, was an inevitable outcome of three principles that operated in nature. Firstly, characteristics of organisms are inherited. Secondly, more offspring are produced than can survive due to limited resources, leading to competition within each generation. Thirdly, offspring vary in their inherited characteristics. Individuals with characteristic variations that best equip them to compete for resources will therefore have a survival advantage and reproduce more successfully, leading to these traits being more prevalent in subsequent generations.
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After a long soccer practice, Jack felt his pulse increase. As he cooled down, his pulse began to slow. Since he'd been studying the circulatory
system in science class, he knew why his pulse slowed.
What is the main structure of the circulatory system that makes the blood move through the body?
O
A. artery
O
•
B. lymph vessels
C. heart
D. lungs
Answers
Answer:
heart
Explanation:
The heart is the main structure of the circulatory system that makes the blood move through the body, hence option C is correct.
What is the structure of the heart?A fist-sized organ, the heart circulates blood throughout your body. It serves as your circulatory system's main organ. Four major muscle-driven chambers make up your heart, they are each powered by electrical impulses.
Your nervous system and brain control how your heart beats. To obtain oxygen into the blood, the circulatory system (cardiovascular system) pumps blood from the heart to the lungs.
The remainder of the body receives oxygenated blood from the heart via arteries. Oxygen-depleted blood is returned to the heart by veins to restart circulation.
Therefore, the heart is the main structure of the circulatory system.
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What would be the most likely effect of adding wolves to the park?
O
A. Increased snowshoe hare population
O
B. Decreased balsam fir population
O
C. Increased maple population
O
D. Increased beaver population
SOMEBODY HELP!!! Other people said the increase of balsam fir but mine says a decrease in a balsam fir
Answers
The most likely effect of adding wolves to the park would be an increased maple population (Option C).
What is a food web?A food web is a graphic diagram indicating the relationships between different trophic levels of organisms.
In this case, the wolves eat primary consumers, thereby increasing the population of producer plants.In conclusion, the most likely effect of adding wolves to the park would be an increased maple population (Option C).
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The addition of wolves to a park is likely to result in a decreased balsam fir population, as wolves would reduce the number of herbivores that feed on these plants.
Explanation:When considering the addition of wolves to a park, one can look at the example of predator-prey dynamics, such as the relationship between lynxes and snowshoe hares. Wolves, being apex predators and keystone species, are likely to influence the ecosystem in several ways. Large predators typically control the population of herbivores, which in turn affects the vegetation.
In this context, adding wolves to the park would most likely lead to a decreased population of herbivores which the wolves prey upon. If snowshoe hares are among those herbivores, this would result in a decrease in their numbers. As a result, any vegetation that the hares preferentially feed upon, such as the balsam fir, could potentially see an increase in population due to reduced feeding pressure.
Therefore, the most likely effect of adding wolves to the park would be option B. Decreased balsam fir population. This is because the wolves would reduce the population of herbivores that would otherwise feed on the balsam fir, giving the plant population a chance to recover and thrive without as much grazing pressure.
Deforestation is a process in which trees and other vegetation are removed from a section of land. What statement best describes the long-term consequences of deforestation on the carbon cycle?
A.
More carbon will be released by carbon sources, so the level of atmospheric carbon may decrease.
B.
Less carbon will be stored in carbon sinks, so the level of atmospheric carbon may increase.
C.
Less carbon will be released by carbon sources, so the level of atmospheric carbon may increase.
D.
More carbon will be stored in carbon sinks, so the level of atmospheric carbon may decrease.
Answers
hope this helps you good luck
Is a swan a type of duck?
Answers
"The answer is no, a swan is not a type of duck.
Swans and ducks are both members of the Anatidae family, which also includes geese. However, they belong to different genera within this family. Swans are typically placed in the genus Cygnus, while ducks are placed in the genus Anas, among others. Swans are generally larger than ducks and have distinct physical characteristics, such as a longer neck and a different shape of the bill. Additionally, swans and ducks exhibit different behaviors and have different habitats and diets. Therefore, while they are related, a swan is not classified as a type of duck."
This is the result of fertilization, in the early stages of growth and development
Answers
Answer:
Cell or zygote is the product of the fertilization process.
Explanation:
Zygote is formed by the fusion of sperm cells of male and egg cells of female in the process of fertilization. Zygote is diploid cell i. e. double number of chromosomes while male sperm cell and female egg cell are haploid i. e. half number of chromosome. Zygote contains half genes from father and half from mother cell.
What do solid and hazardous wastes have in common?
Answers
Answer:
Hazardous and solid wastes can be solid, liquid and gaseous form.
Explanation:
Hazardous wastes are wastes that are composed of harmful or toxic substances which is generated from industries, households, hospital e.t.c that are threat to humans and their environment.
Solid wastes are discharged or absconded materials such as refuse, sludge, gabbage, from water treatments, air pollution, household, industries e.t.c.
2)Through the action of osteoclasts,
Answers
Answer:
Osteoclasts are the type of cells which are responsible for the absorption of calcium from bones.
Explanation:
Osteoclasts is special type of cells which is released by parathyroid gland when the blood have low levels of calcium. Osteoclasts absorb calcium from the bones and add this calcium into the blood to increase the calcium level. If calcium is present in very high amount so this calcium is stored in the bones of the body and extracted when needed by the body.
Which molecules are products of photosynthesis
Answers
Answer:
glucose and oxygen is produced from photosynthesis
Which DNA or RNA consists of a single copy of a gene
Answers
Individuals with characteristics that are poorly suited to the environment are _______ likely to survive and reproduce. *
Answers
Answer:
less
Explanation:
not, less,
anything that means the same as that. bc if they're less suited. they die.
If a product is made from FSC certified wood, which of the following is probably true about where the wood came from? (Select the THREE best answers.)
Question 2 options:
Habitats of animals were respected as much as possible.
The area is becoming deforested.
The forest is managed sustainably.
The workers that cut down the trees were not paid.
The working conditions in the forest are safe.
The indigenous people of the forest were moved to a safe location.
Answers
Answer:
Habitats of animals were respected as much as possible.
The forest is managed sustainably.
The working conditions in the forest are safe.
Explanation:
The Forest Stewardship Council (FSC) is a non-profit organization that tends to promote sustainability of forests and protects the forest species by ensuring forest resources that are of social and economic values are explored in an environmental-friendly manner. So if a wood is FSC certified it means it came from a forest that is well preserved and where sustainable practices are being observed strictly.
Therefore, we can infer that an FSC certified wood most probably came from the following areas which connotes sustainability and preservation of the forest resources is pursued strictly to maximize its social and economic benefits and prevent deforestation and loss of habitats of animals:
Habitats of animals were respected as much as possible.The forest is managed sustainably.The working conditions in the forest are safeWhy is surface tension important
Answers
Answer:
Surface tension determines the efficiency of detergent formulation. The high surface tension of water makes it a relatively poor cleaning detergent. By increasing the temperature of water, the cleaning efficiency increases slightly as surface tension decreases.
Explanation:
It is likely that a member of the
Lepidoptera family seen flying durin
the day is
a. a butterfly
b. a moth.
a c. another kind of winged inscot
Answers
A member of the Lepidoptera family seen flying during the day is likely a butterfly.
Lepidoptera, which includes butterflies and moths, are easily identified by their two pairs of scaled wings, with the forewings larger than the hind wings. The general difference in behavior between the two is that moths are usually night-flying insects that are more cryptic or camouflaged within their habitats, whereas butterflies frequently fly during daylight hours and rely less on camouflage.
Butterflies are more visible than moths during the day because many butterflies pollinate flowers which are brightly colored, open during the day, and produce nectar specifically to attract daytime pollinators.
Moths, such as the Noctuidae family member like the corn earworm, tend to be active at night and are important pollinators for night-blooming plants, forming symbiotic relationships where the plant is pollinated while the moth feeds.
Use the image to answer the questions.
is a producer.
is a consumer.
Answers
Answer:
B is a producer
C is a consumer
If the grass contains 100,000 kcal of energy, how much energy will the zebra receive?
10,000 kcal
Explanation:
Which of the following is NOT a type of tissue found in plants?
O Dermal
O Non-living
O Vascular
O Ground
Answers
Plants have three main types of tissue - dermal, vascular, and ground. 'Non-living' is not considered a type of tissue in plants as plant tissues are primarily formed of living cells.
Explanation:Plants consist of three main types of tissues, namely: dermal, vascular, and ground tissue. Dermal tissue, which comprises the plant's outer protective coating, vascular tissue, responsible for transporting water, nutrients, and sugars between different parts of the plant, and ground tissue, which includes all tissues not part of the dermal or vascular systems and typically serves a metabolic function. However, 'Non-living' is NOT a type of tissue found in plants. In a physiological sense, it's typically the living cells that form the various plant tissues.
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Using the genotypes and phenotypes provided from the iguana gene pool, which statement is NOT correct?
A.Webbed feet is the recessive trait
B.WW x ww produces offspring with no webbing.
C.2 iguanas with no webbing could have an offspring with webbing,
D.Crossing an iguana with webbed feet with one with no webbing would
produce iguanas ALL with no webbing because this is the dominant trait.
Answers
Answer:
Crossing an iguana with webbed feet with one with no webbing would produce iguanas ALL with no webbing because this is the dominant trait.
Explanation:
If an iguana heterozygous for no webbing (Ww) is crossed with an iguana with webbed feet (ww), they have a 50% chance of having an offspring with the recessive trait, webbed feet.
Why blood from the small intestines goes to the liver before it goes to other organs
Answers
Answer:
Blood goes from small intestine to the liver in order to remove toxic substances and store the nutrients. After that, the blood is sent to all parts of the body.
Explanation:
Liver is an important organ of the body which is responsible for the purification of blood coming from the small intestine and then it send to all organs of the body. This blood contains nutrients which is absorbed in the small intestines and some toxic substances which is purify by liver.
A plant takes in carbon dioxide (CO2) from the atmosphere and uses it to make glucose (C6H12O6) through photosynthesis. Later a deer eats the leaves of the plant obtaining the plant’s glucose. After respiration, the deer exhales carbon dioxide (CO2) back into the atmosphere. This is an example of _________________.
Answers
Final answer:
The process described is the carbon cycle, which involves the movement of carbon between different parts of the ecosystem through the processes of photosynthesis and respiration.
Explanation:
A plant takes in carbon dioxide ([tex]CO_{2}[/tex]) from the atmosphere and uses it to make glucose ([tex]C_{6}H_{12}O_{6}[/tex]) through photosynthesis. Later a deer eats the leaves of the plant obtaining the plant's glucose. After respiration, the deer exhales carbon dioxide ([tex]CO_{2}[/tex]) back into the atmosphere. This is an example of the carbon cycle.
The carbon cycle is a fundamental biogeochemical cycle, which involves the movement of carbon between the atmosphere, biosphere, oceans, and geosphere. During photosynthesis, plants use sunlight to convert atmospheric [tex]CO_{2}[/tex] and water into glucose ([tex]C_{6}H_{12}O_{6}[/tex]) and oxygen ([tex]O_{2}[/tex]). This glucose is then used by the plant for growth and energy. When a heterotroph, such as a deer, eats the plant, it obtains energy by breaking down the glucose during respiration. The respiration equation is: [tex]C_{6}H_{12}O_{6}[/tex] + 6 [tex]O_{2}[/tex] → 6 [tex]CO_{2}[/tex] + 6 [tex]H_{2}O[/tex] + Energy released.
In this process, as glucose is broken down, carbon is returned to the atmosphere in the form of [tex]CO_{2}[/tex], thus completing the cycle. This illustrates how carbon is continuously cycled within the ecosystem through the processes of photosynthesis and respiration.
A/An is a group of organs that work together to perform a common function. A/An is a group of tissues that work together to perform a common function. A/An is a group of organ systems that work together to perform a common function. A/An is a basic unit of structure and function of all living things. A/An is a group of cells that work together to perform a common function.
Answers
Answer:
1. Organ system
2.organ
3.Organism
4.Cell
5.Tissue
Explanation:
An organ device is an aggregate of organs (e.g., heart, lungs, eyes, kidneys, and many others that work collectively for a particular function. The human body includes eleven interrelated organ systems that manipulate all crucial frame capabilities.
what is an instance of an organism?The definition of an organism is a creature consisting of a plant, animal, or a single-celled existence form, or something that has interdependent elements and that is being compared to a living creature. An example of an organism is a dog, person, or bacteria.
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. In which phylum do organs and organ systems first appear?
a. Annelida
b. Hemichordata
c. Nematoda
d. Platyhelminthes
Answers
Answer:
The answer is d. Platyhelminthes
A red flower is crossed with a pink flower, how many offspring are:
Red?
White?
Pink?
Answers
White=25 percent
Pink= 50 percent
When looking into a shop window on a bright sunny day you see an image that is a mixture of your image and the items on display. The principles of light involved are
reflection and absorption
refraction and absorption
refraction and transmission
reflection and transmission
Answers
Answer:
D
Explanation:
because it is reflecting off the window and traveling through.
Answer:
D
Explanation:
light reflects or bounces off the window because the material of the window (in this case glass) reflects the light back to the sun and glass makes white light .White light can't be absorbed , but can be reflected. And the sun shines light through the window which is called transmission because its going in a direction(through the window).
Llamas have sexual reproduction. Some types of llamas have 74 chromosomes. That is how many chromosomes are in their somatic (body) cells. How many chromosomes would be found in their gametes?
Answers
Answer: 37 chromosomes.
Explanation: As is typical of mammals, llamas are diploid organisms, meaning that the number of chromosomes in each of their somatic cells is exactly twice of that found in the gametes (the so-called haploid number, referred to as "n"). If a particular species has 74 chromosomes in its somatic cells, we should expect to find 74/2=37 chromosomes in each gamete.
Sexual reproduction occurs as a result of the fertilization of the gametic counterparts of two different sexes (males and females).
Some types of llamas have 74 chromosomes (diploid). The number of chromosomes that would be found in their body cells would be 32 single chromosomes (haploid cells).
Organisms undergo growth division process of mitosis and meiosis.Mitosis occurs in the body cells producing the exact number of diploid cells from parent cell. Meiosis is a reductional division that reduces the number of chromosomes in the gamete cells by half.This is to ensure that the fertilization of the egg gamete (haploid) and the sperm cell (haploid) yields a diploid zygote.Learn more: https://brainly.com/question/17179690
What is an important requirement for a manned spacecraft traveling through space?
Answers
Answer: The presence of breathable oxygen in addition to a sustainable state of pressure.
Explanation:
Final answer:
Manned spacecraft require sophisticated life support, radiation protection, autonomous navigation, communication systems, sustainable power sources, and sufficient fuel capacity to safely travel through space and manage the challenges of the environment and distance from Earth.
Explanation:
An important requirement for a manned spacecraft traveling through space is the ability to provide life support systems that maintain a stable environment suitable for human life. This includes regulating the spacecraft’s internal temperature, ensuring the crew receive adequate oxygen, and managing waste and water. Additionally, radiation protection is crucial, as astronauts are exposed to elevated levels of cosmic and solar radiation. Spacecraft must also be equipped with autonomous navigation systems and communication systems that can operate despite the significant time delay in signals to and from Earth, especially when traveling to distant planets like Mars or the outer solar system. Adequate power sources, such as solar arrays or nuclear batteries to provide energy for the duration of the mission, are also essential. Lastly, the spacecraft must contain enough fuel to not only escape Earth’s gravity but also to allow for mid-course corrections, orbit insertion, and a potential return journey to Earth.