Based on their respective levels in the food chain, the change in the number of beavers when wolves returned to Yellowstone Park will be a decrease in their numbers.
What is a feeding relationship in an ecosystem?A feeding relationship in an ecosystem is a relationship that shows the interaction between organisms present in an ecosystem.
A feeding relationship usually depends on the primary producer, and then the primary consumers, secondary consumers, and tertiary consumers.
The tertiary consumers occupy the highest level in a feeding relarionship.
A feeding relationship is also known as a food chain.
In a food chain, the primary consumer depends on the primary producer; the secondary consumer depends on the primary consumer, and the tertiary consumer depends on the secondary consumer.
Therefore, an increase in the number of organisms in a higher level in the food chain will result in a decrease in the number of organisms at a lower level.
Between a beaver and a wolf, the wolf eats the beaver and thus, occupies a higher level in the food chain.
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During summer in the northern
hemisphere, the northern hemisphere is
A. gets the warm air from the southern hemisphere.
B. tilted closer to the sun.
C. directed away from the sun.
D. closer to the equator.
During summer in the northern hemisphere, the northern hemisphere is
B. tilted closer to the sun.
In the summer, is the Northern Hemisphere inclined toward the sun?The Northern Hemisphere is tilted toward the Sun for half of the year due to the Earth's eccentric orbit; this is summer in the Northern Hemisphere and winter in the Southern Hemisphere. The Northern Hemisphere is tilted away from the Sun during the other half of the year, generating winter in the north and summer in the south.
The southern hemisphere of the planet is the exact opposite of the northern hemisphere in every way. In the southern hemisphere, it is winter while it is summer in the northern hemisphere.
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1. Name the clade of the photosynthetic bacteria that are a main producer in aquatic communities2. Name three Multicellular/Large protist producers in aquatic communities
1. The clade of the photosynthetic bacteria that are a main producer in aquatic communities are referred to as Cyanobacteria. These are clade of photosynthetic bacteria that control their energy coming from organic acids or carbon monoxide. They advanced evolutionary in habitat with decrease presence of oxygen levels. These organisms are considered as aquatic and photocynthetic and has the ability to produce their own food or energy.
Viruses are not living organisms. Which of the following criteria is most
important in determining whether a virus is living or not living?
A) Viruses do not have chlorophyll.
B) Viruses cannot reproduce themselves.
C) Viruses are not made up of many specialized cells.
D) Viruses contain genetic material,
Viruses are not living organisms because they are not made up of many specialized cells.
Why are viruses not considered as living organisms?Because they are not formed of cells, viruses cannot maintain a steady state, develop, or generate their own energy. Viruses are more like robots than actual living things, even though they do replicate and adapt to their surroundings. They are not cells, lack cytoplasm or cellular organelles, do not have their own metabolism, and must therefore replicate via the metabolic machinery of the host cell. These traits make them nonliving. Most significantly, viruses cannot produce ATP, which is how they differ from biological things. Additionally, viruses lack the tools required for translation.
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in which order does water moves in a root hair cell from the soil to the vocuole
Answer:
The movement of water from the soil into the cell vacuole of a root hair cell.
Explanation:
What is one criticism of the drive-reduction theory?
Question 12 options:
It doesn’t account for a person’s need for love and acceptance.
It explains too little about a person’s spiritual needs.
It doesn’t explain why a person’s behavior increases discomfort.
It doesn’t put enough emphasis on mental images.
The one criticism of the drive-reduction theory is option C: It doesn’t explain why a person’s behavior increases discomfort.
What kind of behaviors cannot be explained by the drive-reduction theory?The theory of drive reduction are those behaviors are driven by the biological need to preserve homeostasis, or the internal state of equilibrium of the body's systems.
Risky, harmful, or any thrill-seeking behaviors that add to discomfort are not taken into account by theory. Despite the fact that the drive-reduction theory explains why biological behaviors are motivated, Hull believed it might be used to explain "non-biological" behavior (eating, also drinking, and looking for shelter).
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Look at the image. Which two
bases bond together in DNA?
A. Cytosine-Uracil
B. Cytosine-Guanine
C. Cytosine-Adenine
D. Cytosine-Thymine
Using the data below, determine which type of moth is best adapted to its environment.
a.
Light moths on light trees.
b.
Light moths on dark trees.
c.
Dark moths on light trees.
d.
Dark moths on dark trees.
Lab Habitats - Lab Assessment; Edgen2020
The best type of moth is best adapted to its environment is dark moths on light trees. Thus, option C is correct.
What is environmental change?
Environmental change has a change or the disturbance of the climate which has most often causes due to the human behavior, the human activity or the natural ecological processes.
Environmental change has been consists many factors, such as the natural disaster, human interferences, or the animal interactions. It has been also included the physical change.
In the environmental change natural systems transform the sun's energy into the living matter and cause changes by cycling material through geological, biological, oceanic and atmospheric processes.
Therefore, The best type of moth is best adapted to its environment is dark moths on light trees. Thus, option C is correct.
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How much has the average global temperature increased since 1860?I need help with this practice * ^
The average increase in global temperature since 1860 was 1.4 degrees Celsius. The warming that has been seen is caused by greenhouse gas emissions from human activity.
The correct answer is D
What a greenhouse gas is in simple terms.Gases in the earth's atmosphere called greenhouse gases (GHGs) trap heat. The earth's surface is warmed during the day by the sun's rays passing through the atmosphere. The earth's surface cools at night, releasing heat into the atmosphere once more. The atmosphere's greenhouse gases do, however, trap some of the heat.
What causes greenhouse gases to be produced most often?Almost majority of the rise in atmospheric greenhouse gases over the past 150 years can be attributed to human activity. Fossil fuel combustion for transportation, heating, and electricity generation accounts for the majority of greenhouse gas emissions caused by human activity in the United States.
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Help please thank you!! Match the answers with the questions
Answer: Type of magnet -> Controllable, Temperature -> Independent, Pins -> Dependable
Explanation:
This is easier to understand if you think how an experiment is crafted:
- You need to make sure the elements are somehow the same so you can't have results because of an external variable you were not controlling. In this case, what you are clearly controlling before the experiment is the type of magnet, making sure they are all identical and they don't catch more or less pins because they are big or small.
- Then there is the experiment itself - does temperature affect magnets capabilities? In every experiment there is one thing that you control but change - independent variable. Its not something that the results can change, its something you do. In this case, you put magnets through different temperatures.
- And last, there is the outcome of all this: how many pins they catch. This is the dependable variable, the one that is going to change because of the changes on the independent variable and that you want to observe and note. Sometimes you may already have suspicions (hypothesis) but either way the final result is not something you change yourself.
I hope this was useful!
According to social-cognitive theory, if a woman sees that her friend improved her job performance by taking classes at a local college, she’s likely to try to take some classes to elevate her job skills too. What is this behavior called?
Question 11 options:
Learned cognition
Observational learning
Cognitive dissonance
Personal variables
The behavior is called observational learning.
What is observational learning?Observational learning can be described as the process of learning by watching the behaviors of others. The targeted behavior to which an individual want to emulate is watched, memorized, and then mimicked.
Social-cognitive theory is a theoretical perspective in which learning by observing others is the focus or the main point of study.
If a woman sees that her friend improved her job performance by taking classes at a local college, she’s likely to try to take some classes to elevate her job skills too. This behavior can be likened as observational learning.
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Which term refers to a cell that is small?
Select one:
a.
macrocyte
O b. microcyte
O c. neocyte
d. normocyte
Answer:
The term that refers to a cell that is small is b) microcyte.
Explanation:
A microcyte is an unusually small red blood cell, associated with certain anemias. A most common cause is iron deficiency in the blood. Hope this helps :)
Help please thank you!! Match the answers with the questions
Answer:
Isotopes: Atoms have the same number of protons but a different number of neutrons.
Ion: Atoms that have a positive or negative charge because they have unequal numbers of protons and electrons.
Element: The identity is determined by the number of protons. The simplest form is an atom.
Which is the correct order of smallest to largest?
a. Organ, tissue, system, cell
b. Cell, tissue, organ, system
c. System, tissue, cell, organ
d. Cell, organ, tissue, system
please help I will give you 100 points
Which era saw the emergence of major geologic faults and subduction zones?
A. Cenozoic
B. Mesozoic
C. Cretaceous
D. Cambrian
The Mesozoic era saw the emergence of major geologic faults and subduction zones.
What is the Mesozoic era?The Mesozoic Era also known as the Age of Reptiles and the Age of Conifers, is the second-to-last era of Earth's geological history, lasting from about 252 to 66 million years ago and comprising the Triassic, Jurassic and Cretaceous Periods.
During the Mesozoic era or life form diversified rapidly and giant reptiles, dinosaurs and other monstrous beasts roamed the Earth.
The Mesozoic era is divided up into the Triassic, Jurassic, and Cretaceous periods.
In conclusion, the Mesozoic era was known as the era that marked the extinction of dinosaur.
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A trotter, flaxen horse (Tt ff) is crossed with one that is a pacer and has a dark mane. How many offspring will have a flaxen and be a trotter. Help please
Assuming complete dominance for both genes, 1/4 = 25% of the progeny is expected to have flax. and be a trot.
What is complete dominance?Complete dominance refers to the inheritance pattern in which the dominant allele completely masks the recessive allele expression in heterozygous individuals.
These individuals can only express the dominant trait.
Available data,
Two traits coded by two independent genesTrotter (T) is dominant over pacer (t). Flaxen manes (f) are recessive, with dominant manes having a darker color (F)1/4 = 25% of the progeny is expected to have flaxen and be a trotter.
Note: Due to technical problems, you will find the complete question, the answer and explanation in the attached files.
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Given the recent evidence suggesting that species change due to certain genetic variations, which of these is true.
Answer:
Genetic variation is the change in the genetic composition of an individual or between a population. It is caused due natural selection and mutation.
Explanation:
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An animal cell (left) and a plant cell (right) are shown.
Which two cell parts are most likely found in both types of cell?
vacuole and centriole lysosome
What is something that you have changed your mind about in biology? Make your own answer:
Students' biology experiences also aid in the development of their environmental literacy is something that has changed my mind about biology.
The significance of biology can be seen from a variety of angles. The study of life lies at the heart of biology, first and foremost.The interaction between all living and nonliving entities is also thoroughly explained scientifically. Third, it illuminates the diversity of life forms.
In addition, biology covers a variety of other scientific disciplines that are concerned with the viability of life, such as those that investigate the environment, the ecosystem, the quality of food, the origins of disease, the creation of pharmaceuticals, and the human body, to mention a few.
Homeostasis, energy transfer and utilization, the connection between structure and function, and change over time are key biological principles on which students should concentrate.
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What is a source of air pollution?Choose all correct answers.factoriesburning fossil fuelscarsbicycles
From the listed options the ones that are sources of air polluation are:
Factories, Cars and burning fuels because of the chemicals compounds that they emit in the air burning fossil fuels.
In living cells, the term osmosis is used to describe the movement of water from high to low concentration across the plasma membrane. Predict the result if a plant cell is placed in a solution that has the same solute concentration as the cell.
a. Water movement in and out is balanced.
b. Water is at equilibrium and therefore stops moving in and out of the cell.
c. All solutes will be gathered into a central vacuole, reducing the solute concentration of the cytoplasm.
d. All solutes leave the cell, but the water molecules are retained by the central vacuole.
Option A is correct because water movement in and out is balanced. Because osmosis occurs in both directions equally, the cell size will be the same.
What is osmosis?Osmosis is the naturally occurring transfer of solvent molecules from a lower concentration solution to a higher concentration solution over a semi-permeable membrane. Examples of osmosis in everyday life include: becoming thirsty after eating salty food. Kidney dialysis in the excretory system. Resins and other seeds swell when they are submerged in water.
The following is the definition of osmosis that you will find in most textbooks: Osmosis is the movement of water molecules through a cell's partially permeable membrane from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules.
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What is species diversity?
The species diversity has to do with the existence of many organisms in a given habitat.
What is species diversity?The term species diversity has to do with the different species that can be found in a habitat. We know that a habitat refers to a place where living organisms could be found. There is always diversity in a habitat because they various organisms do make up the food web of the habitat which is the complex feeding relationships that we have in the habitat.
Diversity is the key that sustains the interaction of species in a habitat. The organisms that are found in a habitat can be found in communities and each of the communities in the ecosystem do have individuals that make it up in populations.
Thus, we can see that the diversity is the key to the sustenance of any ecosystem habitat as the organisms in the habitat must be interdependent.
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Which explanations for why we dream makes the most sense to you? How well does it explain your own dreams?
Explanations for why we dream make the most sense to you are dreams are frequently advanced as a storage mechanism for significant memories and lessons learned, a way to purge unimportant memories, and a way to organize jumbled feelings and complex thoughts.
According to the activation-synthesis theory, dreams consist of a collection of random events that come to the sleeping mind and are put together in a meaningful fashion when we wake. In this way, dreams might spur fresh insights, practical suggestions, or inspirational epiphanies in the dreamer's waking life. Most specialists agree that dreams help us relax, mend, and rejuvenate our bodies. Others argue that humans dream for psychological purposes, including stress relief, reevaluating the day's events, and giving pent-up emotions a release.
According to the continuity theory, a person's conscious experiences are reflected in their dreams, which serve as a reflection of their real life. 8 Dreams manifest as a patchwork of memory snippets rather than a simple replica of waking reality.
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QUESTION 7From the list provided, select all that are needed in the process of genome editing. (Check all that apply.)The target DNA sequenceThe ability to replace the mutated gene sequence with the correct gene sequenceThe ability to remove the mutated gene sequenceThe correctly folded protein encoded by the gene
To answer this we need to remember how gene editing work, for this we need our target sequence, restriction enzymes, and our new sequence, so we can say that the correct options are: 1,2 and 3
Describe what advice you would give a friend who is concerned about their school-aged child that would help the child develop a sense of industry, according to Erikson's theory. Why is this important and how would your recommendations help your friend?
The best advice I would give a friend to help develop a sense of industry according to Erikson theory is to show unconditional love and support to their children while avoiding overpraising of the child.
What is Erikson's Theory?The Erikson's Theory is the psychosocial development theory that was proposed by the scientist Erik Erikson.
In this theory, Erikson believed that as an individual develops from childhood to adulthood that there are eight universal stages that they must pass through.
The school-age child is the fourth stage of Erik Erikson's theory during childhood between the ages of approximately six and eleven.
At this fourth stage children learn how to develop self-confidence through school and social activities.
One of the best advice to help the child build their self confidence is to encourage them and avoid excessive praise so as not to encourage the development of sense of arrogance in the child.
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when is a substance most likely to diffuse into a cell?
When a chemical's concentration is higher outside a cell than inside one, a material is more likely to diffuse into that cell.
What is cell?Cell are defined as the fundamental membrane-bound entity that houses the essential molecules of life and is the building block of all living things.
It can also be defined as the smallest unit of life, a cell has a clear structure and serves a particular purpose.
There are basically two types of cells.
Prokaryotic cells - It is defined as a unicellular, simple organism without a nucleus or any other membrane-bound organelle.Eukaryotic cells - It is defined as the cells with a nucleus that is structured and organelles that are encased in membranes.Thus, when a chemical's concentration is higher outside a cell than inside one, a material is more likely to diffuse into that cell.
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(1) Many organisms of the same species living in an area make up a population. (2) Populations in an area make up a community. (3) An ecosystem is all living and
nonliving things in an area. (4) The living things depend on each other to survive.
If this sentence were added to the paragraph, what transition would best indicate that a pond is an example of a community?
The semicircular canals of the inner ear detect rotational and/or angular movement of the head, or ____________ equilibrium.
The semicircular canals of the inner ear detect rotational and/or angular movement of the head, or rotational equilibrium.
Any kind of head movements, rotational or angular movements, are determined by semi-circular canals of the inner ear. This rotational or angular movements of the head to maintain balance are termed as rotational equilibrium.
The inner ear is in charge of encoding information concerning equilibrium, or the feeling of balance, along with audition. Mechanoreceptors, which are hair cells with stereocilia, sense our bodies' motion as well as the position and movement of our heads. The vestibule of the inner ear is where these cells are situated. The utricle and saccule detect head position, while the semicircular canals detect head movement.
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in a DNA molecule having 1400 bases has 400 adenine bases ,so what will be the number of T,C,and Gbases?
Answer:
A: 400
T: 400
C: 300
G: 300
Explanation:
#A = #T
#C = #G
The electrical gradient across a muscle cell membrane at rest would drive the movement of Na ions
Answer: The resting potential is determined by concentration gradients of ions across the membrane and by membrane permeability to each type of ion.
Explanation: