The gas that Dr. Walter Snelling discovered in 1911 that becomes a liquid under moderate pressure and acts as an energy source is propane.
Properties of PropanePropane is a gas at room temperature and it was isolated by Dr. Walter Snelling around 1911 in the process of trying to stabilize gasoline.
At cold temperatures or moderate pressure, propane becomes a liquid.
Propane has been and is still being used as an energy source in cooking, powering vehicles, and cutting metals in industrial welding.
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3. Which U.S. state generates the most utility-scale solar power?
California
Arizona
Texas
Florida
Answer:
it would be Florida because they used a lot of electricity
Answer:
California
Explanation:
In at least 100 words, construct an explanation that predict an organism's ability to
survive within the changing environmental limits.
Answer:
living, components can likewise influence an organic entity's capacity to make due in an environment. They incorporate food accessibility, rivalry with different life forms, plant cover accessibility, predation, sickness, parasitism, swarming, territory discontinuity and the presence of human populaces. An absence of trees can influence populaces of birds or other arboreal organic entities, which may depend on tree cover for settling and stowing away from hunters. Some biotic elements influence abiotic factors also, for example, plants that become taller than contending plants and square daylight, or an absence of disintegrating natural matter or nitrogen-fixing microorganisms that prompts low nitrogen levels in the dirt.
A golf course is next to a river. The fertilizers they use for the golf course get washed into the river. What might happen as a result of the excess fertilizer?
A. The water warms due to excess nitrogen.
B. Nitrogen-fixing bacteria die off.
C. Fish die due to nitrogen-fixing bacteria.
D. Fish die due to algae blooms.
Help
Secondary succession occurs where vegetation existed previously, usually after some type of
disturbance.
True or False
Which adaptation would give a plant a survival advantage during a hot, dry summer?
A.
seeds that have a thick outer covering
B.
deep roots that are efficient in taking in water
C.
large, flat leaves that let water evaporate easily
D.
a long stem that helps it reach for sunlight above other plants
answer the sooner the better!! I'll give brainliest
Answer:
I believe the answer is (B.)
Explanation:
The plant needs as much water as it can get, due to the dry and hot summer.
Which of the following explains how faults are formed? Faults are formed
i. When 2 plates move away from each other
ii. When 2 plates move towards each other
iii. When 2 plates slide past each other.
a. i and ii only
b. ii and iii only
c. i and iii only
d. i, ii, and iii
Answer:
B
Explanation:
Faults are caused by all that bumping and sliding the plates do.
Which of the following is true about environmental hazards to humans?
A)
Children are more at risk than adults because they take in more air per unit mass than adults.
B)
Adults are most at risk because they have the highest exposure to environmental hazards.
C)
Elderly people are most at risk because their immune systems do not perform efficiently.
D)
Children are least at risk because they have well functioning immune systems.
E)
Adults are most at risk because they take in more pollutants relative to their size than children.
Answer: A)
Explanation:
Children are at a higher risk of suffering negative effects from environmental hazards than adults, because children do not have fully developed immune systems. In addition, children have a higher exposure to environmental hazards, because they spend more time outside, on average, than adults. Children also take in more air per unit mass than adults, which means that they also take in more pollutants relative to their size.
use the table to answer the question below ^
A mutation causes the following change in DNA.
original DNA sequence
TACGCATGGAAT
DNA sequence after mutation
TACGTATGGAAT
Please help if this is correct and If you know more information I can add.
Answer:
Yes that is correct i think
Explanation:
When observing the Earth's biosphere organization, which is the smallest ecological level?
A population
A community
An organism
An ecosystem
Answer:
it is an orgismi
Explanation:
that is my answer
Answer:
organism
Explanation:
An organism makes up an animal, and when there are many of the same animal, it makes up a population. Many populations of different kinds of animals make up a community. Many communities make up an ecosystem.
Hope this helped :D
(mark brainliest pls)
8. Genetic engineering has directly increased productivity in which
U.S. industry?
Answer:
Agriculture
Explanation:
Genetic engineering can be defined as the use of genetic techniques aimed at modifying the genome of living organisms, thereby being used to develop Genetically Modified Organisms (GMOs). In the USA, genetic engineering methodologies have been used in agriculture to improve crop yields and reduce costs (for example, by reducing the need to use pesticides). Some of the most important genetic engineering techniques that nowadays are being used in agriculture research include biolistic transformation, Agrobacterium-mediated transformation, the CRISPR-Cas9 genome editing system, etc.
mRNA delivers the instruction of how to make protein in chucks called
Answer:
codons.
Explanation:
Every three nucleotides codes for an amino acid, these frames are called codons.
what is earth
please help me
Earth is a beautiful planet that revolves around a star called Sun, which is located in one of the arms of our Milky Way Galaxy. It is the only planet known to support life in the Solar System. Humans are the most intelligent civilization on this planet. It's blue when seen from space. Recently, Earth 29 spacecraft was able to land on this planet, after 28 unsuccessful landings of Earth series of spacecrafts. We were able to learn many things about humans, most important of these was the most spoken language of them, which they call English. According to experts, humans are not yet ready to know about our existence. It can take about 1 or 2 more centuries, until they are ready to know about us.
Which diseases are caused by hereditary factors?
Group of answer choices
athlete’s foot and food poisoning
type 1 diabetes and cancer
tuberculosis and strep throat
swine flu and the common cold
Answer:
type 1 diabetes and cancer
Explanation:
All the others are contagious diseases that you can contract, but type 1 diabetes and cancer can be caused by genetics. The others are all things that you can usually recover from while cancer and diabetes are usually conditions that cannot be escaped sadly.
What did the early fossil discoveries described demonstrate?
Answer:
Explanation:
Fossils provide evidence that organisms from the past are not the same as those found today, and demonstrate a progression of evolution
Which of the following would most likely be the effect of a mutation in DNA?
Answer:
b
Explanation:
100 POINTS PLEASE ANSWER- the answer is not c or d CONFIRMED
The diagram illustrates the process of developing genetically modified corn.
What occurs at step 3 in the diagram?
The restriction enzymes cut the isolated DNA into fragments.
The gene of interest is inserted into an expression cassette.
The recombinant DNA is inserted into the host cell nucleus via a vector.
The expression cassette is inserted into a plasmid for cloning.
Answer:
B The gene of interest is inserted into an expression cassette.
Explanation: I hope this helps you.
(i believe this is the diagram that goes to the question)
The gene of interest is inserted into an expression cassette that occurs at step 3 in the diagram. Therefore, option B is correct.
How is genetically modified corn produced?The GMO corn Bacillus thuringiensis (Bt) produces proteins that are poisonous to some insect pests but not to humans, pets, or cattle.
The most popular bacteria for GM plants is known as Agrobacterium tumefaciens. The desired gene is introduced into the bacterium, and the bacterial cells then introduce the new DNA into the plant cells' genome. The successfully incorporated plant cells are then cultivated to produce a new plant. This is how genetically modified corn is produced.
Thus, step 3 in the process of developing genetically modified corn is the gene of interest inserted into an expression cassette. Therefore, option B is correct.
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Your question is incomplete, most probably the full question is this:
The diagram illustrates the process of developing genetically modified corn.
The diagram illustrates the process of developing genetically modified corn. What occurs at step 3 in the diagram?
The restriction enzymes cut the isolated DNA into fragments.The gene of interest is inserted into an expression cassette.The recombinant DNA is inserted into the host cell nucleus via a vector.The expression cassette is inserted into a plasmid for cloning.The image is attached below:
For the strand of DNA listed below. write out the matching RNA strand.
GTAGCGTACAGCIGACGA ACGTGCATTGC GAC G
The difference between biotic and abiotic factors are (1 point)
O abiotic is non-living and biotic is living.
O abiotic provide minerals and biotic does not.
Obiotic provide minerals and abiotic does not.
O biotic is non-living and abiotic is living.
Imagine that you are a scientist who has discovered a new object. You want to find out if the object is biotic or abiotic. You observe several characteristics about the new object. Which of these characteristics would tell you that the object is abiotic, or not alive?
(answer) The object cannot create energy.
The initial rise in the line of the graph is an example of population growth in a species as a result of
(answer)an increase in food supply.
China instituted a “one child per couple” rule to help address which of the following?
(answer) overpopulation
Which of the following describes the difference between biotic and abiotic factors?
(answer) abiotic is non-living and biotic is living
Which is a list of factors that will limit the carrying capacity of a species?
(answer) food supply and habitat space
Explanation:
i just did the quick check UwU
The difference between biotic and abiotic factors is that abiotic means non-living and biotic means living, that is the first statement, as biotic factors refer to living organisms in an ecosystem like plants and abiotic factors include soil.
What is the difference between biotic and abiotic factors?Biotic factors refer to the living organisms in an ecosystem, such as plants, animals, fungi, and microorganisms, and these organisms interact with each other in various ways, including through predation, competition, and mutualism, while abiotic factors refer to the non-living components of the environment, such as air, water, soil, sunlight, and temperature, which can have a significant impact on the distribution and behavior of biotic organisms within an ecosystem.
Hence, the difference between biotic and abiotic factors is that abiotic means non-living and biotic means living, which is the first statement.
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(b) Describe the characteristics of the interior of the aquaporin channel protein that allow water to flow through AND exclude glucose.
If isolated keratinocytes are placed in a hypotonic solution for 24 hours, explain the net direction of water movement AND why the
rate of water movement slows down over time.
Answer:
Aquaporin protein is a type of protein composed of a bundle of six transmembrane α-helices.
Explanation:
Aquaporin protein is a type of protein composed of a bundle of six transmembrane α-helices. These aquaporin protein have different size of water channels that allow water through to pass through it but it does not allow glucose to move through it due to its large size. The direction of water movement is toward the cell because there is low water inside the cell as compared to outside environment so the water moves inside the cell and rate of water movement slows down over time due to filling of empty spaces with water.
10. Wei saw a special type of plastic that would melt and become a liquid when it was placed in the sun, but it would not melt when placed under a desk lamp. Why does light from the sun melt the plastic when light from the desk lamp does not? Because the plastic can take in energy from the light from the sun but not from the light from the lamp. b Because light from the sun carries heat molecules, and light from the desk lamp does not. Because light from the sun pulls energy out of the plastic, and light from the desk lamp does not. Because the sun gives off a type of light that carries erlergy, and light from the desk lamp does not.
Select the correct answer.
Which unit is used for measuring atomic mass?
O A. atomic mole
OB. grams/mole
O c. grams
D. atomic mass unit
O E. atomic mass weight
Answer:
Option A
Explanation:
mole is taken under consideration for measuring atomic mass
What is the correct amino acid sequence for the
mRNA code AUGCCAGUAUGA
Answer:
UAC GGU CAU ACU
The correct amino acid sequence is Methionine-Proline-Valine-Stop codon.
What is the genetic code?The genetic code is a code that specifies the amino acids that will be added to a protein from a given nucleic acid chain.
Each triplet of nucleotides or codon in mRNA indicates a specific amino acid.For example, the codon AUG specifies the addition of the amino acid Methionine.In conclusion, the correct amino acid sequence is Methionine-Proline-Valine-Stop codon.
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Are viruses abiotic?
Answer:
no because they dont need to consume energy to survive and they cant replicate without a host cell
it does not follow all of the seven life processes (Movement, Respiration, Sensitivity, Nutrition, Excretion, Reproduction and Growth.) therefore it is non-living
Explanation:
Why are mutations a significant component of evolution and natural selection?
Answer
A
Mutations occur when a population needs a new trait to survive.
B
Mutations are the only source for new alleles in a population’s gene pool.
C
Mutations occur when a species population has become too large.
D
Mutations are a major source of extinction for various species
Answer:
B
Explanation:
process of elimination. The other ones were wrong tbh. Also, in natural selection genetic variation/mutations are a HUGE FACTOR according to darwins 3 principles of evolution.
It is the amount of money that a seller sets for the item or product for sale?
Answer:
Expenses
Explanation:
which organ is part of the body system that transports nutrients from food through the entire body
Answer:
The Circulatory System
Explanation:
Geoengineering includes a variety of large-scale efforts to reverse global climate change.
One geoengineering concept involves releasing large amounts of iron-containing
fertilizers into oceans. The increased concentration of iron in ocean water would
theoretically increase the rate of photosynthesis carried out by phytoplankton. Why are
such ideas controversial?
A. Photosynthetic algae would increase, not decrease, atmospheric carbon
dioxide.
C. Scientists cannot agree whether carbon dioxide in the atmosphere relates to
global climate change.
D. Scientists cannot predict what other unintended effects large concentrations
of iron may have.
Answer: D, Scientists cannot predict what other unintended effects large concentrations
of iron may have.
Explanation: just took quiz ap3x
Answer:
D
Explanation:
Just took the quiz
Question 15
What determines the type of soil that is created when it is formed?
A. the types of organisms living in the soil
B. the amount of time it takes to create the soil
C.the type of rock and minerals in the parent material
D.the altitude of the location of soil formation
C is the answer..........
Many organisms in the ocean (like plankton) rely on this source of food. What effects do you think this change in the decrease speed of the ocean currents could have on living things on the ocean?
Please help
Answer:
If the speed of ocean currents slows down, some living beings in the ocean would find it difficult to feed and reproduce.
Explanation:
As we already know, ocean currents act as a transport chain that transports hot water to the poles and cold water to the tropics. However, this ability to transport ocean currents also acts in the transport of nutrients and food for living beings that live on the seabed and do not move, but live in a fixed place. They also transport the reproductive cells of these beings to other places in the ocean, being important in the reproduction of marine life. If the speed of ocean currents decreases, the feeding and reproduction of some marine life organisms will be impaired.
