Answer:
The core
Explanation:
At the center of the Earth is the core, which has two parts. The solid, inner core of iron has a radius of about 760 miles (about 1,220 km), according to NASA. It is surrounded by a liquid, outer core composed of a nickel-iron alloy.
Which of the following might have influence whether or not a comet will collide with a nearby planet
-The ice and dust the comet is composed of
-The composition of the planets atmosphere
-gravitational attraction between two celestial objects
-none of the above
critically evaluate the role of human beings in perpetuating climate change
Answer:
Explanation:
Industrialization and use of combustible engines for daily life activities by humans has led to the production and release of a large amount of greenhouse gases (such as CO₂, N₂O, CH₄ and CFC) into the atmosphere-which prevents a large amount of heat produced from the earth moving to space.
The burning of fossil fuels by combustible engines (from cars, trains, power generating sets e.t.c) widely used by humans has led greatly to this climate change. Trees that help absolve a large amount of the most abundant man-made greenhouse gas (CO₂) has not been massively planted around, which indirectly worsens the case of global warming. Trees would have absorbed/breath in the CO₂ while producing/breathing out O₂ that could help cushion the effects of global warming.
Why do you think toxicology is an important area of study in veterinary science?
Because some compounds that are not dangerous to humans can be exceedingly harmful to animals, toxicology is crucial in veterinary science.
What is veterinary science?Veterinary science is defined as concerned with preventing the spread of animal diseases to humans as well as the prevention, control, diagnosis, and treatment of diseases impacting the health of domestic and wild animals.
Toxicology is defined as a branch of study that aids in our comprehension of the negative consequences that drugs, events, or chemicals may have on humans, animals, and the environment. The Threshold of Toxicological Concern (TTC) is a notion that refers to the determination of a level of exposure for all chemicals beyond which there would be no appreciable danger to human health, whether or not there are chemical-specific toxicity data.
Thus, because some compounds that are not dangerous to humans can be exceedingly harmful to animals, toxicology is crucial in veterinary science.
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What makes it easy to spot a scientific law?
-Labeled by Theory with a capital "t"
-A mathematical formula
-Graphs of a lot of data
Answer:
I think it's (Graphs of a lot of data) but I'm not sure
Dead cells called keratinocytes make up the hair _____ which contains mtDNA and not nuclear DNA.
Answer:
Hair follicles originate in the epidermis and have many different parts. Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells.What two components are often found as part of an enzyme
Answer:
Enzymes contain a globular protein part called apoenzyme and a non-protein part named cofactor or prosthetic group or metal-ion-activator.
Explanation:
Which factor will best help a scientist produce valid experimental results?
A. having many different independent and dependent variables.
B. graphing results by using both graphing calculators and computers.
C. using large sample sizes in multiple replications of an experiment.
D. reporting the data that were collected and evaluations of the experimental procedure.
Answer:
C Using large sample sizes and multiple replications of an experiment
Explanation:
Net Force:
N
Direction:
Balanced or Unbalanced:
PLEASE ANSWER PLEASE
Answer:
balanced
Explanation:
Since equal pressure is being applied from opposite sides, they cancel out. think about pushing a box from opposite sides. Its not gonna move. Hope I was a help! :)
What is pollination?
can y’all give me a hand?
Answer:
C is correct hope u get a good grade:)
Explanation:
Which rely on other organisms for their energy and food supply? A. primary producers B. biomass C. autotrophs D. consumers
Answer: D, consumers
Explanation:
They eat other organisms for their energy.
BRAINLIEST!! Are Dogs mammals? :( asking for a friend
Answer:
yeheeeea boooooii in other words yes
Explanation:
Dogs have hair and fur and they are warm blooded vertibretes
1. Which resource would best be categorized as inexhaustible?
a. oil reserves
b. fisheries
c. solar energy
d. forests
e. coal reserves
Answer:C
Explanation:
The Sun will illuminate us for billions years whereas the rest of the answer choices can be exhausted and used up completely.
Solar Energy would best be categorized as inexhaustible. So, the correct option is (C).
What are Renewable and Non-Renewable resources?Resources are divided as renewable or non-renewable. A renewable resource can renew itself at the rate it is used, while a non-renewable resource has a limited supply. Examples of renewable resources are timber, wind and solar while non-renewable resources are coal and natural gas.
Renewable energy is the energy which can be used repeatedly and it is renewed again after a short period of time which is defined as the type of energy resources that can be renewed naturally. Renewable sources of energy can replace the conventional sources of energy which produce harmful gases which are harmful as well as costly.
Non-renewable resources are those which cannot be reused or reproduced, it is used only once and takes a long time to reproduce. These are also not good for the environment. Burning fossil fuels harms our environment.
Thus, Solar Energy would best be categorized as inexhaustible. So, the correct option is (C).
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1. A newton is the SI unit for
a. mass,
b. density
c. volume.
d. weight.
Answer:
weight
Explanationweight is the measure of force of gravity exerted on an object.
weight is a type of force.
force is measured in newton
How do animals obtain usable nitrogen? Why is it important?
Nitrogen in Plants
Nitrogen in PlantsNitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins
Answer:
Through eating plants and animals.
Explanation:
Usable nitrogen is not achievable simply. It can also not be obtained directly. Animals must receive nitrogen from consuming plant-based foods (plants) or other animals.
Nitrogen is significantly relevant/important to animals and plants since nitrogen produces proteins to these animals and chlorophyll to the plants. Nitrogen also helps with the growth and creation of DNA towards animals and plants.
carbs are made up of which monomer?
Answer:
monosaccharides
Explanation:
Monomers are the building blocks of the four basic macromolecules of life- monosaccharides are the monomers of carbohydrates, amino acids are the monomers of proteins, glycerol/fatty acids are the monomers of lipids, and nucleotides are the monomers of DNA.
Answer:
The most common polysaccharides are built solely with glucose monomers, while significant structural differences between these polysaccharides arise mainly from the position and number of the glycosidic linkages in each glucose unit.
Explanation:
What is difference between Microtubules and Microflaments?
Microfilaments
Microfilaments are fine, thread-like protein fibers, 3-6 nm in diameter. They are composed predominantly of a contractile protein called actin, which is the most abundant cellular protein. Microfilaments' association with the protein myosin is responsible for muscle contraction. Microfilaments can also carry out cellular movements including gliding, contraction, and cytokinesis.
Microtubules
Microtubules are cylindrical tubes, 20-25 nm in diameter. They are composed of subunits of the protein tubulin--these subunits are termed alpha and beta. Microtubules act as a scaffold to determine cell shape, and provide a set of "tracks" for cell organelles and vesicles to move on. Microtubules also form the spindle fibers for separating chromosomes during mitosis. When arranged in geometric patterns inside flagella and cilia, they are used for locomotion.
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Which series of processes CANNOT
happen in the water cycle?
Answer:
d...
Explanation:
What is the difference between smooth and rough endoplasmic reticulum (ER)?
The difference is that the the smooth (ER) is not bound by ribosomes. The rough endoplasmic reticulum on the other hand is bound by ribosomes.
A mixture of iron, salt and sand can be separated using a magnet, water, a filter and a hot plate. Think about this separation. The separation of this mixture
Answer:
Explanation:
This is an example of a mixture which can be separated with simple separation techniques based on the physical properties of the mixtures.Magnetism, and filtration and evaporation
Iron is a magnetic material,but salt and sand are not,Therefore,the iron can be separated from the mixture with the use of magnet.
Salt and sand are mixable.But salt is soluble in water,but sand is not.Therefore by adding the sand and salt to water,the salt will dissolve,in the water(solvent) to form a salt solution. But the sand can be separated out of the solution by filtration with the filter paper inserted into a funnel which allows the salt solution to pass through,while restricting the sand.
The sand would be removed by the filter paper,while solution passes through.
The salt solution and some sand residues is placed in evaporating dish and heated at low temperature. The water from the solution evaporates,leaving the salt behind.
A combination of two are more substances that is not chemically combined is called a mixture.
In order to separate a mixture of iron, salt and sand, we need a magnet, water, a filter and a hot plate. The magnet is brought close to the mixture and all the iron is removed.
Next, water is added. The water will dissolve the salt while the sand will settle beneath the vessel. The solution can now be filtered and the sand is removed. To recover the salt, the solution is heated using the hot plate until all the water is evaporated and the dry salt is recovered from solution.
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Which statement below would be most likely to effect the carbon cycle if a tornado lands and destroys most of the trees in a forest?
A. There would be less fossil fuels in the ground that would be used for drilling
B. Plants would remove less carbon dioxide from the atmosphere
C. An increase in organisms respiration would raise the level of carbon dioxide in the air
D. More resources would be available for animals in the area
Answer:
B
Explanation:
The effect of the carbon cycle if a tornado lands and destroys most of the trees in a forest is Plants would remove less carbon dioxide from the atmosphere.
What impact does the carbon cycle have on land?The important changes in the land carbon cycle are likely to come because of climate change. Carbon dioxide rises temperatures, extending the growing season and increasing humidity. Both factors have led to some additional plant growth. However, warmer temperatures also stress plants.Thus, option "B" is correct.
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Viruses are considered to be___________ because________________
Answer:
Viruses are considered to be non-living because they arent
Answer:
I think it's viruses are considered to be non-living because a virus can't reproduce by itself. It must hyjack a cells system to be able to reproduce.
Describe the four major spheres that support life on Earth.
Explain how rays AB and AC form both a line and an angle.
The description of a cell organelle is given below.
found in animal and plant cells
breaks down food molecules
makes ATP
What organelle is being described?
mitochondria
lysosomes
chloroplasts
ribosomes
Answer: mitochondria
In which case would you use a dissecting microscope rather than a compound microscope? D.to view the cells of the skin B.to determine the shape of the bacteria A.to view the surface of a plant leaf C.to determine the type of virus in a specimen
Euglena falls under what kingdom ?
help asap i need to submit
Answer:
I think it's 1 boy sure tho
What is a hydrogen bond?
Answer:
a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
Answer:
extra strong intermolecular attractions between polar molecules
Explanation:
A teacher proposed that her class should consider using a jigsaw puzzle as a model of a scientific theory. The completed puzzle represents the theory and the connecting puzzle pieces represent the individual hypotheses that are connected in the theory. What is a limitation of a jigsaw puzzle as a model for scientific theory? Options: A) It does not represent the way that some hypotheses might be rejected. B) It gives the idea that established theories are not subject to change. C) It does not represent theories that do not involve any hypotheses. D) It gives the idea that information used to develop a theory is connected.
In what way do erysipelas and exudative epidermitis differ?
A. Erysipelas causes skin lesions, whereas exudative epidermitis causes digestive issues like diarrhea.
B. Erysipelas is a bacterial infection, whereas exudative epidermitis is often caused by a parasite infestation
C. Erysipelas can result in death, whereas exudative epidermitis is less serious and rarely results in fatalities.
D. Erysipelas is caused by streptococcus, whereas exudative epidermitis is caused by staphylococcus.
Answer:
D. Erysipelas is caused by streptococcus, whereas exudative epidermitis is caused by staphylococcus.
Explanation:
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