Answer:
Plate Tectonics
Explanation:
The theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle.
Essay
In a food web, energy is transferred from one level to the next. Describe what might happen in an ecosystem if the number of primary producers was dramatically reduced.
Answer:
from food web their are many eaters and subeaters so we can easily say energy will decrease when th e first one eat the other
Answer:
the primary consumers or herbivores which feed on the producers would die.
Explanation:
herbivores eat plants and if the plants reduce they will die
which type of objective lens are there in compound microscope. in one line
Homer Simpson goes to his job every day at the Springfield nuclear
power plant. His job as a safety inspector helps keep people and the
environment safe from the possible hazards of nuclear power. Most of the
hazards from his job involve monitoring which of the following?*
A.Uranium-235 and waste containment
B.Water levels and temperature in local lakes
C. Carbon dioxide and other greenhouse gas emissions
Answer: I've never watched Simpsons, but I saw half an episode once on tv where he totally blew up the entire company or something. But I think they said his job was as a technical guy, but he kept falling asleep, and didn't know how to do anything, and that's why he couldn't stop the explosion, or something.
I hope this helps. I'm thinking it doesn't, though.
why the replication in the lagging strand, happened discontinuously?
help ASAP! Please! Ill mark brainliest
Answer:
I think this is right
Explanation:
ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide
ocean acidification evidence - growing difficulty in absorbing carbon dioxide,
large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells
Answer:
I think this is right
Explanation:
ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide
ocean acidification evidence - growing difficulty in absorbing carbon dioxide,
large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells
Explanation:
b
Please help me with science!
The diagram below shows a type of virus called a bacteriophage. Select the name of the structure that the virus can use inside a host cell to produce new virus particles.
Answer:
It's the DNA..........
The structure that the virus can use inside a host cell to produce new virus particles is the DNA.
Bacteriophage which literally means bacteria eater is a type of virus that has the ability to infect bacteria.
Basically all bacteriophages consist of nucleic acid molecule (DNA) which is surrounded by a protein coat( the capsid head).
It also possess a tail sheath through which it transfers it's DNA into host cell.
Eventually, new bacteriophages assemble and burst out of the bacterium in a process called lysis.
Therefore, the structure that the virus can use inside a host cell to produce new virus particles is the DNA.
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how are fish adapted in water? write in points
Explanation:
. there gills help them to breath oxygen in water.
. there fins help them to move in water
What is the next step after a hypothesis
Answer:
test hypothesis..........
what is the difference between DNA of a stomach cell and the DNA of a brain cell?
Answer:
they have different functions
Explanation:
the stomach cells breakdown food and make up a certain tissue and take nutrients from the food you eat while the brain cell makes up your neurons and receptors
Since they both have the same genetic information stored in the same sequence of nucleotides, the DNA of a stomach cell and the DNA of a brain cell is practically identical. However, there may be functional distinctions between both kinds of cells depending on how some genes are expressed.
What happens during development?Cells specialize during development and differentiate into various cell types with distinct functions. According to the requirements of the cell, specific genes are turned on or off as part of the differentiation process.
For instance, a brain cell may express genes that enable it to relay messages and make connections with other cells in the nervous system, whereas a stomach cell may express genes that allow it to produce digestive enzymes and absorb nutrients.
Therefore, the DNA of a stomach cell and the DNA of a brain cell is nearly identical since they both have the same genetic information stored in the same sequence of nucleotides.
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What type of what type of weathering is when humans use excavating
machines to break up rocks?
Answer:
Mechanical weathering
Explanation:
Which statement is not an example of how the use of resources has changed?
A. More products are made from recycled materials.
B. Cars still largely rely on oil.
C. Car companies have developed hybrid cars.
D. More wind farms are present in the United States.
Answer:
B. Cars still largely rely on oil.
Explanation:
Nowadays, most countries still use transportation systems that burn fossil fuels. An example of this may be private cars that consume gasoline, which derives from fossil fuels (oil). The use of fossil fuel transportation systems increases the emission of carbon dioxide (CO2), a major greenhouse gas involved in global warming. In the near future, it is expected that fossil fuel-based vehicles can be replaced by electric cars that use energy obtained from renewable sources (e.g., solar energy, wind energy, etc).
Answer:
B is not correct. I know cause I took the test here are the correct answers!
Car companies have developed hybrid cars.
More wind farms are present in the United States.
More products are made from recycled materials.
Explanation:
I just want you to get it right and get an A
A tissue is a group of cells which perform essentially the same function. true or false
Answer:
True
Explanation:
A tissue is a group of cells that does the same function.
How does Klinefelter syndrome caused by nondisjunction might have occurred??
Answer:
Cause. Klinefelter syndrome usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in a reproductive cell with an abnormal number of chromosomes.
Explanation:
Which of the following is NOT true about living things
(5 Points)
Some living things are made of only one cell
All living things are made of cells
Some living things have no organization
Multicellular organisms have different types of cells
Answer: Some living things have no organization.
Explanation:
A is true because there are unicellular organisms.
B is true because all living things are composed of cells.
D is true because multicellular organisms do have different types of cells (skin, muscle, liver, heart, brain, gamete, etc, etc).
This leaves C.
any good hypothesis idea?
Answer:
is plant growth affected by temperature
Explanation:
How can you explain the difference in number of mitochondria in these types of cells?
Answer:
Organs which need alot of energy to function properly have a greater number of mitochondria
Explanation:
Mitochondria are sites for respiratory enzymes which yield energy for the cells thus skeletal muscles which need alot of energy have more mitochondria than liver and liver due to doing more activities than skin has more mitochondria than the skin.
Answer:
Skeletal muscle cells have a very high amount of mitochondria as well as liver cells because they need high amounts of energy to carry out their functions, whereas skin cells don't need high amounts of energy to function.
What phase of mitosis is shown in the picture above?
A. Metaphase
B. Anaphase
C. Telephase
D. Prophase
The phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.
What is Mitosis?Mitosis may be defined as the type of cell division in which two daughter cells are formed from a parental cell with the exact number of chromosomes.
In metaphase, the chromosome usually lines up in one plane and forms an equatorial plate in which they are attached to the spindle fiber through their centromere.
Therefore, the phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.
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A student made a model of an ecosystem inside a sealed plastic bottle. She
placed soil, rocks, water, plants, and animals inside the bottle. How is the
model unlike a natural ecosystem?
A. The model has more consumers than a natural ecosystem.
B. The model lacks the producers found in a natural ecosystem.
C. The model has more predators than a natural ecosystem.
D. The model lacks the diversity found in a natural ecosystem.
The model lacks the diversity found in a natural ecosystem.
What is a natural ecosystem?A natural ecosystem is made up of living and non living parts. Energy is cycled in the system along the food chain from one organism to another.
Thus the model that is made by the student is unlike a natural ecosystem in the sense that the model lacks the diversity found in a natural ecosystem.
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Answer:
D. The model lacks the diversity found in a natural ecosystem.
Explanation:
a boys pushes on a heavy box, but it does not move. what force is resisting the boy's push?
Answer:
Friction! :)
Explanation:
Friction is resisting the push. You will learn that newtons are also working against the boys push. The simplest answer is friction.I hope this is helpful!
Answer:
The Answer is Friction
Explanation:
Friction is resisting the boy's push, more informativlly, the type of friction here is Static Friction, which is the frictional force that resists force that is applied to an object.
Mark me as Brainliest if this answer helped :)
The physical appearance or the way a gene looks is known as its.... A. Gene B.Allele C.Phenotype D.genotype
Why can’t we send cactuses to Mars a plant that doesn’t need much water in a dessert environment
Answer:
Sunlight levels
Explanation:
the cacti would not get enough sunlight, as it is not close enough. Also, it does need water every month or so.
Answer:
because there's no oxygen
One open container and three insulated, closed containers are filled with 1000 mL of ice cream. Each container is placed in the same location for one hour and the ice cream is checked for melting. The data are recorded in the graph.
According to the graph, which container is most effective in keeping the ice cream from melting?
Question 3 options:
the open container
the rubber-lined container
the aluminum-lined container
the fiberglass-lined container
Answer:
the aluminum-lined container
Explanation:
Answer:
fiber lined,,
Explanation:
Which of these is NOT a reason to take photographs of a crime scene?
A to document the relative locations and positions of evidence
B some evidence can not be collected
C some evidence does not last / is temporary
D once evidence is used in court it is thrown away, and photographs allow CSI to study evidence years later
the answer would be d hope thos helps
The one that is not a reason to take photographs of a crime scene is once evidence is used in court it is thrown away, and photographs allow CSI to study evidence years later. The correct option is d.
What is an evidence?They photograph and physically measure the scene, identify and collect forensic evidence, and keep the evidence in the proper chain of custody.
Fingerprints, footprints, blood and other bodily fluids, hairs, fibers, and fire debris are all gathered by crime scene investigators all are included.
While the most obvious goal of crime scene photography is to create a visual record of the crime scene and all of its relevant features, the best example of photography's role is the presentation of a logical story.
The one reason not to photograph a crime scene is that the evidence is used in court, it is discarded, and photographs allow CSI to study evidence years later.
Thus, the correct option is d.
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I’ll mark you as brainliest
hypotonic solution is the answer
What microscopic structures make up organisms such as humans (you)?
Answer:
cells are the smallest structural units of living matter and compose all living things.
Why are individuals in many developing countries susceptible to diseases such as
polio and pertussis?
because of a lack of education
because of poor hygiene
because of genetic variation
because of a lack of vaccination
Answer:
because of lack of vaccination
Explanation:
this occur mostly in Nigeria
Answer:
I hope this helps.
Explanation:
Help please I will give you the brainliest I need help with 3
Answer: c) A High-Pressure System
Explanation: A high pressure system is a whirling mass of cool, dry air that generally brings fair weather and light winds.
how do mutations lead to genetic diversity?
The mutation Mutations are changes to an organism's DNA and are an important driver of diversity in populations. This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation.
hope it helps.
What are the properties of clay, and what are the properties & structure of loam soils.
you don’t need to answer all of them, just at least the properties, thanks.
Answer:These properties include: cation exchange capabilities, plastic behaviour when wet, catalytic abilities, swelling behaviour, and low permeability. (clay)
f sand (particle size > 63 micrometres (0.0025 in)), silt (particle size > 2 micrometres (7.9×10−5 in)), and a smaller amount of clay (particle size < 2 micrometres (7.9×10−5 in)). By weight, its mineral composition is about 40–40–20% concentration of sand–silt–clay, respectively. (Soil)
Explanation: