Two students are pushing a sofa across a room what is the net force applied to the sofa by the students?
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Answer:
400N
Explanation:
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Related Questions
Crossing over occurs during Prophase II.
A. True
B. False
Answers
crossing over occurs in prophase 1 of meiosis 1. The significance of this crossing over is to ensure cell differentiation. If this occurred in prophase two it means the cells in meiosis 1 will be identical.
Answer:
B. False
Explanation:
Crossing over not occurs in prophase II. It occurs only during prophase I.
5. Our nervous system and our skeletomuscular system help us react to stimuli. Give one example on how this helps us maintain homeostasis.
Answers
Answer
The nervous and skeletomuscular systems help maintain homostasis by regulating respiration.
Explanation:
The brain stem, consisting of the pons and medulla, represent the main respiratory center. According to Wikipedia, "an increased level of carbon dioxide in the blood, or a decreased level of oxygen, will result in a deeper breathing pattern and increased respiratory rate to bring the blood gases back to equilibrium."
This is an example of a homostastic response controlled by both of the organ systems referenced above.
Source: https://en.wikipedia.org/wiki/Homeostasis
Can someone help me?
Answers
Answer:
1. lytic/losigenic cycle
2. Restriction enzymes (breaks) and DNA ligase (joins)
3.mitosis (creation of twin daughter cells)
4. mitosis had helped humans with cell growth and repais (and keeps a steady supply of new cells)
Explanation:
it first goes through the lytic cycle where one bacterium inserts it's own dna into a host (human cell) and into the human DNA and it starts multiplying inside human cells in the lysogenic cycle
When and where would you expect to find the highest rate of primary productivity
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Answer: Net primary productivity is the amount of gross primary productivity remaining after respiration, which is about 40 and 85 percent. Sloughs and marshes, as well as tropical rain forests, possess the highest rates of net primary productivity; deserts have the lowest.
Explanation:
I explained on the top-
The highest rate of primary productivity in terrestrial environments takes place in swamps and marshes and in tropical rainforests, and in aquatic environments it takes place in algal beds, estuaries, and reefs.
• In ecology, primary productivity refers to the rate at which conversion of energy to organic substances takes place by the photosynthetic producers that attain energy and nutrients from the sunlight, and chemosynthetic producers that attain chemical energy via oxidation.
• The majority of the energy assimilated by plants via the process of photosynthesis is not stored as organic substance, however, is utilized at the time of cellular respiration.
• In the process, the organic components like proteins, carbs, and fats are dissociated to provide energy in the form of ATP for the metabolic needs of the cells.
• The energy not utilized is stored in the tissues of the plants for future use and is known as the net primary productivity.
• The highest net primary productivity in terrestrial environments takes place in marshes and swamps and in tropical rainforests, and in aquatic environments it takes place algal beds, estuaries, and reefs.
These environments are mainly critical for the sustenance of global biological productivity.
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https://brainly.com/question/14017102
Please help me with this
Answers
Answer:
bro ineed help to
Explanation:
Answer:
option 1 is the crt answer
Explanation:
B and j show more dna similarity as B is the direct ancestor of j
assume that cody used a weak magnet and the flake of cereal was not attracted to it what conclusion might he have drawn?
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Answer: he might have concluded that the flake of cereal was not magnetic
Explanation:
which value most closely represents the amount of freshwater on earth,as a percentage of the total water on earth
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The fresh water is only present in the form of glaciers and the water flowing in the lakes and the rivers. The fresh water source occupies approximately 3% of the total water present on the earth. Hence, the value closely related to the amount of the fresh on the earth is 2 percent.
2%
that is the answer
How is gene cloning helpful in biological research??
Answers
Answer:
Biologists frequently utilize DNA cloning in basic research labs to create fake, recombinant versions of genes to better understand how normal genes in an organism function.
Explanation:
Took the lesson on Khan Acdemdy, its from my notes i took
Which structures do plant cells have for making food that animal cells do not?
Answers
Answer:
chlorophyll is the answer
Only forager bees leave the nest for their jobs
A
True
B
False
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What is respiration and the types of respiration
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Answer:
Hey mate......
Explanation:
This is ur answer.....
Respiration is the process by taking in oxygen and liberating carbon dioxide from the oxidation of complex organic substances.
Three types of respiration include internal, external, and cellular respiration. External respiration is the breathing process. It involves inhalation and exhalation of gases. Internal respiration involves gas exchange between the blood and body cells....
Hope it helps!
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I’m confused help me pls
Answers
Claim: This process uses expensive fertilizers and pesticides to grow pest free crops which may be produced in excess. Explain the reasons why people would go against growing wheat this way.
Your answer: Here are 3 reasons that go against growing wheat this way.
1. The fertilizers and pesticides are expensive and cost farmers a lot which takes away from the revenue that farmers make from growing the crops in the first place.
2. Other then fertilizers and Pesticides its a lot of work as you can see on the chart throughout the year there are many things you must do too keep crops bug free and pest free this reason I'm explaining says that taking and doing all of this work for not pests/bugs is too much and not needed.
3. Fungicide Is needed a lot and incredibly expensive when you used/spray it on crops that much and point goes a lot more for large crops too.
If these reasons don't work, find factors that or counterclaims that go against this method of harvesting wheat. (This is what your supposed too do)
Elizabeth has always believed that people’s thoughts can help heal them. She wants to help people use positive thinking to positively affect their illnesses. What type of psychology would be MOST appropriate for Elizabeth to study? A. human factors psychology B. industrial psychology C. health psychology D. sports psychology
Answers
Answer:
health psychology
hope it is helpful to you
Mitosis makes.....
A. cell phones
B. identical body cells
C. sperm and egg cells
Answers
B. identical body cells
hope it is helpful to you
Answer:
B. identical body cells
Explanation:
Mitosis produces new cells, and replaces cells that are old, lost or damaged. In mitosis a cell divides to form two identical daughter cells. ... Mitosis separates these chromatids, so that each new cell has a copy of every chromosome.
Question 5 of 10
Which is caused by the uneven heating of air?
A. Altitude
B. Wind
C. Humidity
D. Rain
SUBMIT
Need help ASAP
Answers
Answer:
B. Wind
Explanation:
Wind is the movement of air, caused by the uneven heating of the Earth by the sun and the Earth's own rotation. Winds range from light breezes to natural hazards such as hurricanes and tornadoes.
What is phylogeny?
A. How species interact with each another
B. The study of cells.
C. How organisms are related through evolution.
Answers
Answer:
Hey mate......
Explanation:
This is ur answer......
C. How organisms are related through evolution...Hope it helps!
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Answer:
C. How organisms are related through evolution.
Explanation:
Phylogeny is the organisms that are related through evolution.
Which is not a major reservoir of carbon?
O rivers and lakes
O oceans
O living things
O fossil fuels
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Answer:
i think its fossil fuels but dont dont quote me on that
How does bacteria cause disease?
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Answer:
Bacteria cause disease by secreting or excreting toxins (as in botulism), by producing toxins internally, which are released when the bacteria disintegrate (as in typhoid), or by inducing sensitivity to their antigenic properties (as in tuberculosis).
btw :
stay safe! :3
HELP! What evidence indicates that many psychological disorders, such as schizophrenia and developmental
disorders, are biologically and not environmentally based?
Answers
Answer:
Schizophrenia and developmental disorders are traced genetically, and the gene will be found in the biological parents of the person with either schizophrenia or developmental disorders.
Explanation:
Although Schizophrenia can be triggered by environmental factors, or the 'nurture' of childhood development, a person who is not predisposed genetically to schizophrenia will not get the psychological disorder. The same is to be said about developmental disorders such as Autism and ADHD, it is hereditary.
For citation of evidence, I recommend talking about prenatal development, and how toxic substances can alter the development of a fetus, which is proven to lead to some developmental disorders, such as Fetal Alcohol Syndrome.
Answer:
Schizophrenia and developmental disorders are genetically connected, and the gene will be found in either the individual's biological parents or the person suffering from schizophrenia or developmental abnormalities.
Explanation:
Once mRNA is made it travels
A. out of the cytoplasm, into the nucleus where a ribosome will attach to it.
B. out of the nucleus, into the cytoplasm where a ribosome will attach to it.
Answers
Answer:
B. out of the nucleus, into the cytoplasm where a ribosome will attach to it.
Explanation:
Once mRNA is made, it travels out of the nucleus, into the cytoplasm where a ribosome will attach to it.
Adults produce gametes through a type of cellular reproduction called mitosis. The process of a sperm cell and an egg cell fusing together is called fertilizationand produces a zygote. As a zygote undergoes rapid cell division to develop into an embryo, fetus, and eventually baby, the type of cellular reproduction being used is . As a baby grows into an adult, the type of cellular reproduction used is mitosis.
Answers
Answer:
Mitosis.
Explanation:
Mitosis is the type of cellular reproduction which is used in order to develop an embryo, fetus, and eventually baby. In mitosis type of cell division, the parent and mature cells divides into two daughter cell. This type of cell division occurs in somatic or body cells whereas meiosis type of cell division occurs in the sex cells which produces four daughter cells from a single parent cell.
Which of the following processes transfers carbon directly from sea water to sea plants
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Human sperm and egg cells have ____ chromosomes.
A. 42
B. 21
C. 23
Answers
Answer:
They each have 23 chromosomes
Explanation:
Answer:
C. 23
Explanation:
Human sperm and egg cells have 23 chromosomes.
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Fill in the correct answers in the boxes below.
Answers
Answer:
The answers are as followed:
Explanation:
9: Non renewable
10: Organisms
11: Millions
Answer:
9. nonrenewable
10. I think it's plants?
11. millions of years
Explanation:
Gene expression establishes that genes will be turned on to build a protein.
A. TRUE
B. FALSE
Answers
Answer:
A. TRUE
Explanation:
Gene expression establishes that genes will be turned on to build a protein.
Would you predict more earthquakes in areas where tectonic plates are colliding or where they are moving apart?
PLSS HELPP MEEE
Answers
Answer:
Maybe where they are colliding because when they collide there is going to be a wave of impact that will go to the surface
Explanation:
What is the role of transport proteins in
active transport?
A. They move molecules against the gradient.
B. They collect molecules of water to assist in the process.
C. They store the ATP needed to power the process.
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Which of these is an abiotic factor in a rainforest ecosystem?
Tree cover
Biodiversity
Trophic levels
Precipitation
Answers
A utility company has proposed building a natural gas power plant next to a lake. The picture below shows the proposed power plant.
The company claims burning natural gas will release only harmless gases such as water vapor (H2O) and carbon dioxide (CO2). Why would environmental scientists disagree with this claim?
A
The emission of carbon dioxide leads to rapid cooling of the Earth’s lakes and oceans.
B
The emission of carbon dioxide leads to an increase in the temperature of the atmosphere.
C
The emission of water vapor leads to a decrease in the humidity of Earth’s atmosphere.
D
The emission of water vapor pollutes the atmosphere, causing harm to plants and animals.
Answers
Answer: B is right
Explanation: Carbon dioxide is a greenhouse gas which is involved
with increasing temperature of atmosphere
Which of the following can cause evolution to occur? (Select all that apply)
Mutation
If organisms choose a mate for a specific reason
People moving into or out of an area
If the population shrinks
Answers
Answer:
MutationIf organisms choose a mate for a specific reasonPeople moving into or out of an areaIf the population shrinksExplanation:
These factors are the "forces of evolution." There are four such forces: mutation, gene flow, genetic drift, and natural selection.
These are the factors that can cause evolution to occur:
MutationIf organisms choose a mate for a specific reasonPeople moving into or out of an areaIf the population shrinks