Answer:
An action that rewards a particular kind of behavior is a positive sanction. A negative sanction is a punishment or the threat of punishment used to enforce conformity.
Explanation:
Edge 2021 100%
A feedback system controls the menstrual cycle. How does a female resp
when the luteinizing hormone level drops sharply?
O A. Her progesterone level drops sharply.
B. She ovulates.
C. She menstruates.
D. Her estrogen level drops sharply.
Answer:
D
Explanation:
Her estrogen level drops sharply.
Answer:by ovulating
Explanation:bc I’m right
In an experiment there are two groups. which group is not changed in any way
Answer:
The Control Group
Explanation:
Explain the relationship between electricity and magnetism
Explanation: Ok so, Electricity and magnetism are two related phenomena produced by the electromagnetic force. And together, they form electromagnetism. A moving electric charge generates a magnetic field. A magnetic field induces electric charge movement, producing an electric current. ( Relationship of them ) Electric current produces a magnetic field. Electric currents and magnets exert force on each other, and this relationship has many uses. A temporary magnet, known as an electromagnet, can be made by passing electric current through a wire that is coiled around an iron core..
( hope this helped )
Choose the wrong statements from the following: ? * 1 point Plants can get rid of excess water by respiration Many plant waste products are stored in cellular vacuoles. Waste products may be stored in leaves that fall off. Other waste products are stored as resins and gums, especially in old Phloem
Answer:
Explanation:
Waste products may be stored in leaves that fall off.
Which cells are biconcave in shape and have no nucleus?
Answer:
It simply allows the red blood cell to have more hemoglobin. The more hemoglobin you have, the more oxygen molecules you can carry. Therefore, it allows RBC to transfer more oxygen. Lack of nucleus in RBC also allows the cell to have an unique bi concave shape that helps with diffusion.
Explanation:
found it on the internet:)
V. Long Answer Type Questions
(5 Marks)
4. Recently Delhi Government has imposed a ban on use of polythene bags. After this many
shopkeepers have started using paper/jute/cloth bags.
(a) Mention two reasons why polythene bags are not environment friendly.
(6) Is the decision of using paper bags correct? Comment.
(c) Mention the associated values.
answer in 1 sentence each please cutiess
Answer:
a) Two reasons why polythene bags are not environment friendly are as following:
Plastic bags are made up of non-renewable materials such as polypropylene and their manufacturing and disposal cause greenhouse gases to release in the environment and contribute to global climate change.Polythene bags or Plastic bags are non-degradable and break into small pieces in the environment which are then consumed by wildlife or run off into oceans.b) Yes, the decision of using paper bags is correct as it will minimize the use of plastic bags and also reduce the environmental pollution caused by plastic waste. Paper bags can be reused or recycled again and again and they are easily degradable in the environment causing very less or no pollution.
c) The values associated with the ban on use of polythene bags is to establish a sustainable environment for our present and future generation. It will reduce environmental pollution and will minimize the effect of global warming.
The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle. What is the common name of the group to which this organism belongs? bryozoans rotifers cnidarians mollusks there is a picture in the file below.
Answer:
cnidarians
Explanation:
bryozoan - "Bryozoa are a phylum of aquatic invertebrate animals. Typically about 0.5 millimetres long, they are filter feeders that sieve food particles out of the water using a retractable lophophore, a "crown" of tentacles lined with cilia." -Wikipedia
rotifers - "The rotifers, commonly called wheel animals or wheel animalcules, make up a phylum of microscopic and near-microscopic pseudocoelomate animals." -Wikipedia
cnidarians - "Cnidaria is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments: they are predominantly marine. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey. Their bodies consist of mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick.
" -Wikipedia
mollusks - "Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda. The members are known as molluscs or mollusks. Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high." -Wikipedia
(The Wikipedia entries are for describing.)
If you look at the pictures of all the answers, cnidarians look the most like the organism in the picture shown.
Answer:
Cnidarians
Explanation:
I took the test and got %100.
Why is water pollution a concern if water is continuously cycled through Earth’s systems?
Water pollution is still a concern, even though its cycled through the Earth's system continuously, for many reasons. Firstly, people still continue to dump toxic chemicals, and plastic/ garbage into the water. Plastic doesn't decompose, it continues to sit and pollute the ocean unless it is cleaned up. Then there are also the chemicals. Some of these chemicals don't dissipate, or clear out for many years. There is also oil that has been spilt into the ocean. Even though it was many years ago, it still lingers in the ocean, and is very difficult to clean up. Secondly, there are bacteria and algae that lives in the water, which makes it very harmful for us if not cleaned out. The Earth's system is unable to keep these organisms out of the water. Thirdly, there is constantly water, even though water goes through the cycle, there is still unfiltered polluted water that stays, and then pollutes the filtered water.
felt like this needed a better answer, so here you are. I got 100% on edgenuity 2020 with this.
Decide if each statement is a fact or a misconception about the theory of evolution by natural selection.
Answer:
No answer choices please provide some.
Explanation:
What is it called when bacteria take in DNA from their environment?
O A. Conjugation
O B. Transduction
O C. Transformation
O D. Transcription
SUBN
Answer:
I think it may be C Transformation...I might be wrong though....I'm sorry if I am
Explanation:
Answer:
I believe it's C. Transformation
Explanation:
How do the HOX genes in the paddlefish match the HOX genes in humans ?
Answer:
Hox genes are known as homeobox genes and they help in the morphological arrangement and development of different cells from the head to the toe of animals.
These genes are responsible in the patterns exhibited by our own hands and feet. The paddlefish Hox genes helps in the formation and arrangement of its skeletal bones which is more developed than other teleosts.
The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded proteins?
A.
preventing the phospholipid tails from binding together
B.
protecting the cell from physical harm
C.
allowing specific substances to flow into the cell
D.
defining the cell's structure and shape
Answer:
Answer:C.
Answer:C. Explanation:
Answer:C. Explanation:Allowing specific substances to flow into the cell. the embedded proteins of the plasma membrane specifically a selective proteins, which selects a substances that is needed to enter and out. it acts like a guard. It give orders if that substance will enter the cell or out the cell.
B. Fill in the blanks:
1. Deficiency diseases can be prevented by eating what
Answer:
Stopping behaviors that contribute to the deficiency, such as unhealthy eating, smoking, and heavy alcohol use, can help prevent vitamin deficiency anemia. Eating a healthy diet can lower your risk of developing the condition. Some people take a daily vitamin supplement to help prevent the condition.
Answer:
They can be prevented by eating healthy food or a daily vitamin supplement to help prevent it.
Explanation:
Stopping behaviors that contribute to the deficiency, such as unhealthy eating, smoking, and heavy alcohol use, can help prevent vitamin deficiency anemia. Eating a healthy diet can lower your risk of developing the condition. Some people take a daily vitamin supplement to help prevent the condition.
I would like to say that I did not copy from the previous answer but that I just googled deficency deises and used their explenation to help with my answer and that i didn't see their answer until after I had posted mine.
According to the cell theory, which describes cells?
Answer:
Living organisms are not created spontaneously
Explanation:
brainliest would be appreciated!
which statement best contrast food chains and food webs
Answer:
Food chains show a single path of energy in an ecosystem, and food webs show all the overlapping food chains in that ecosystem. Food webs show the path of energy in an ecosystem, and food chains show the path of nutrients in that ecosystem
Explanation:
How plant use osmosis
Answer:
Osmosis is responsible for the ability of roots to draw water from the soil. Plants concentrated solutes in their root cells by active transport and water enters the roots by OSMOSIS. Osmosis is also responsible for controlling the movement of guard cells
Was it beneficial or harmful for the Chthamalus barnacle to add the Balanus barnacle? Explain.
Answer:
It was it harmful for the Chthamalus barnacle to add the Balanus barnacle.
Explanation:
The principle of competitive exclusion says that two different species that share the same niche can not live in the same place. If these species have the same requirements, they can not coexist. Two species can not coexist indefinitely on the bases of the same limited resource.
When two competing species coexist, this is because of niche partitioning or niche differentiation. If there is not any differentiation between them, the dominant species displaces the weak species.
In the exposed example, Chthalamus can live in the upper intertidal zone, where Balanus can not live because they can not tolerate desiccation. Balanus live in the lower intertidal zone, where Chthalamus can not live because of its vulnerability to predation. But these two species compete for the middle intertidal zone, where they can both live. Balanus excludes Chthalamus because the first species is much bigger and grows faster than the second one. So the middle intertidal zone is only inhabited by Balanus.
The area occupied by Chthalamus is smaller in the presence of Balanus. In the absence of Balanus, Chthalamus can live in a bigger area, occupying the middle intertidal zone.
If you wanted to increase the rate of photosynthesis in a plant, you would develop a plant with which of the following characteristics
Answer:
Many broad leaves, which allows gathering more light.
Explanation:
5 ways that overfishing in the ocean is a problem are identified
Pls help me with this science question!!!!!!!!!!!!
THXS!!!!!!! Will be marked brainliest!
Answer: Glaze storm
Explanation:
A storm is a disturbed weather condition which is developed due to unstable wind currents. The center of wind currents are in low pressure whereas the surrounding are at high pressure. This condition forms clouds called cumulonimbus.
A glaze storm can be defined as a precipitation event in which the ice coating is formed on the exposed objects by the freezing of supercooled water deposited by the rain or fog on the surface.
4. Compare the two examples of changes in beetle populations. Which of the two scenarios is an example of evolution? Defend your answer with an explanation.
Answer:
The second scenario, "Beetles of a different color", is an example of evolution.
Explanation:
Since evolution is defined as a change in gene frequency overtime, over generations, it is in the second example that we see such a phenomenon taking place. Brown beetles have become more common as opposed to the green beetle population that were the ancestors in this case.
Hope that answers the question, have a great day!
Which cycle is represented in this image?
A. Nitrogen cycle
оо
O B. Water cycle
O C. Oxygen cycle
O D. Carbon cycle
SUBME
The given image represents the oxygen cycle. The correct option is C.
What is oxygen cycle?The biogeochemical cycle that describes the movement of oxygen within and between the Earth's atmosphere, biosphere, and lithosphere is known as the oxygen cycle.
Oxygen is constantly produced and consumed in various parts of the cycle, with photosynthesis, the process by which green plants and some bacteria convert carbon dioxide and water into organic compounds and oxygen, serving as the ultimate source of oxygen.
The oxygen produced during photosynthesis is released into the atmosphere and used by living organisms for respiration, which is the breakdown of organic compounds to release energy and carbon dioxide.
Human activities, such as the burning of fossil fuels and deforestation, can have an impact on the oxygen cycle by altering the balance of carbon dioxide and oxygen in the atmosphere.
Thus, the correct option is C.
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Your question seems incomplete, the probable complete question is:
Which cycle is represented in this image?
A. Nitrogen cycle
оо
O B. Water cycle
O C. Oxygen cycle
O D. Carbon cycle
why/how is biodiversity essential to the health of an ecosystem
Answer:
Biodiversity is the amount of variety of life on Earth.
Explanation:
Biodiversity boosts ecosystem productivity where each species, no matter how small, it has an important role to play.
For example,
a larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all forms of life.
Because it provides a wide variety of ecological services essential to both ecosystem function and human well-being, biodiversity is important to the health of an ecosystem.
What is Biodiversity?The term "biodiversity" describes the range of living things in an ecosystem, such as plants, animals, fungi, and microorganisms, as well as the genetic diversity found within each species.
Here are some justifications for why ecosystem health depends on biodiversity:
1. Nutrient Cycle: The ability of an ecosystem to cycle nutrients depends on biodiversity.
2. Temperature control: By absorbing carbon dioxide and generating oxygen through photosynthesis, biodiversity helps regulate temperature.
3. Soil health: Biodiversity is essential for the preservation of healthy soil.
4. Controlling pests and diseases in ecosystems: Biodiversity can help in managing pests and diseases.
5. Benefits to the Economy: Humans benefit economically from biodiversity in a number of ways, including access to food, medicine, and other natural resources.
Therefore, biodiversity is important for the health of ecosystems, and its loss can have serious detrimental effects on both ecosystem functioning and human well-being.
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Which of the following go through the process of photosynthesis?
Answer:
It's green plants and certain other organisms that transform light energy into chemical energy.
Explanation:
What does the breakdown and absorption of minerals look like step by step and which organs are involved?
Answer:
During the process of absorption, nutrients that come from the food (including carbohydrates, proteins, fats, vitamins, and minerals) pass through channels in the small intestine into the bloodstream. The blood works to distribute these nutrients to the rest of the body.
Explanation:
Can you write a two-page paragraph explaining invasive species please? Thank you.
Answer:
Invasive species, also called introduced species, alien species, or exotic species, any nonnative species that significantly modifies or disrupts the ecosystems it colonizes. Such species may arrive in new areas through natural migration, but they are often introduced by the activities of other species. Human activities, such as those involved in global commerce and the pet trade, are considered to be the most common ways invasive plants, animals, microbes, and other organisms are transported to new habitats.
Most introduced species do not survive extended periods in new habitats, because they do not possess the evolutionary adaptations to adjust to the challenges posed by their new surroundings. Some introduced species may become invasive when they possess a built-in competitive advantage over indigenous species in invaded areas. Under these circumstances, new arrivals can establish breeding populations and thrive, especially if the ecosystem lacks natural predators capable of keeping them in check. The ecological disruption that tends to follow such invasions often reduces the ecosystem’s biodiversity and causes economic harm to people who depend on the ecosystem’s biological resources. Invasive predators may be so adept at capturing prey that prey populations decline over time, and many prey species are eliminated from affected ecosystems. Other invasive species, in contrast, may prevent native species from obtaining food, living space, or other resources. Over time, invading species can effectively replace native ones, often forcing the localized extinction of many native species. Invasive plants and animals may also serve as disease vectors that spread parasites and pathogens that may further disrupt invaded areas.Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats. This can result in huge economic impacts and fundamental disruptions of coastal and Great Lakes ecosystems.
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Which of the following is the effect to contractile vacuole when Amoeba sp is placed in salt water?
A. Burst and die
B. Stop contracting
C. Contract at fast rate
D. Contract at slow rate
Where does the stench come from the is in your arms?
Answer:
The human armpit has a lot to offer bacteria. It's moist, it's warm, and it's usually dark. But when the bacteria show up, they can make a stink. That's because when some kinds of bacteria encounter sweat they produce smelly compounds, transforming the armpit from a neutral oasis to the mothership of body odor.
Explanation:
Body odor is caused by bacteria breaking down sweat and is largely linked to the apocrine glands. ... They are scent glands. The apocrine glands are mainly responsible for body odor because the sweat they produce is high in protein, which bacteria can break down easily.
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What might be some implications of Robert Hazen’s experiments and research?
Answer: Robert Hazen studied carbon cycle and mineralogy.
Explanation:
The following are the implications of Robert Hazen's research work.:
1. He explored that the hydrothermal system present in moons and in some plants are responsible for the development of organic molecules which are responsible for origin of life.
2. Chiral mineral surfaces are responsible for selection and concentration of molecules.
3. He discovered and complied the list of mineral species on the Hadean Earth.
The substance represented by the scissors shown cutting the DNA is
1. Enzyme
2. A starch molecule
3. A carbohydrates
4. A far molecule
Answer:
1
Explanation:
endonuclease are such enzymes that cut the DNA molecule
The substance represented by the scissors shown cutting the DNA is an enzyme.
What is a simple definition of an enzyme?An enzyme is a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell. The enzyme is not destroyed during the reaction and is used over and over.
What is an enzyme example?Amylase is found in saliva. Maltase – also found in saliva; breaks the sugar maltose into glucose. Maltose is found in foods such as potatoes, pasta, and beer. Trypsin – found in the small intestine, breaks proteins down into amino acids.
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