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.
More on propane can be found here: https://brainly.com/question/24159489
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where the copying of
the DNA molecule begins.
Answer:
DNA replication initiates at specific points, called origins, where the DNA double helix is unwound. A short segment of RNA, called a primer, is then synthesized and acts as a starting point for new DNA synthesis.
Explanation:
Answer:
Origins of replication
Explanation:
hope this helps!
Predict: Why aren't all organisms made of just one cell?
Why do cells divide, instead of simply growing larger?
The living beings that are comprised of more than one sort of cell are known as Multicellular Organisms.
Why organisms are made up of cells?These organelles are liable for an assortment of cell capacities, for example, acquiring supplements, creating energy, and making proteins. Unicellular living beings are comprised of just a single cell that completes each of the capacities required by the organic entity, while multicellular creatures utilize various cells to work.
Cells divide because:
Cells need to separate for your body to develop and for body tissue, for example, skin to restore itself ceaselessly.
Find more information about Cells here:
brainly.com/question/3717876
When air particles are close together what is it called
Answer:
slavery
Explanation:
because i like bbc
Answer:
Compression
Explanation:
The air particles are being pushed together.
Do all cells need oxygen for cellular respiration to take place? A. yes B. no
Please as help! Explain how important has been for animals to have internal fertilization? Provide two
arguments supporting your answer
Answer:
Why is internal Fertilisation important to animals?
Internal fertilization has the advantage of protecting the fertilized egg from dehydration on land. The embryo is isolated within the female, which limits predation on the young.
Explanation:
relate diffusion and equilibruim
Where is the liver and pancreas ?
Answer:The pancreas is located behind the stomach in the upper left abdomen. It is surrounded by other organs including the small intestine, liver, and spleen.
Explanation:
Answer:
The pancreas is located behind the stomach in the upper left abdomen. It is surrounded by other organs including the small intestine, liver, and spleen.
HELP ASAP please i need it
Answer:
nearmess to mountain ranges
Explanation:
What phase is the cell in
Answer:
Anaphase
Explanation:
2. Who was the first to clearly define the idea of
a species?
Abeka Science 7th G
The most famous definition of a species comes from the 20th century German-born biologist Ernst Mayr, who emphasised the importance of interbreeding.
how is a carbon atom different from hydrogen atom?
Termination of the abdomen in which the anus is located *
telson
Cheliped
carapace
mandibles
Answer:
Telson
Explanation:
its the last segment of the abdomen.
Farmer Brown tests the hypothesis that the more alfalfa sprouts cattle eat, the more milk they produce. He divides his pasture into four fields and puts twenty cattle in each field. Field 1 cows get no alfalfa sprouts, field 2 cows get ten pounds of sprouts per day, field 3 cows get twenty pounds of sprouts, and field 4 cows get thirty pounds. He feeds all groups fifty pounds of regular hay per day, uses the same breed of cattle, and gives them the same amount of water. He measures gallons of milk produced per cow every day.
Answer:
C
Explanation:
The amount of milk cow produces
Answer:
D
Explanation:
I took the test
All animals have the same tolerance range.
True
False
Answer:
False
Explanation: Diffrent animals have different tolerance ranges
ANSWER FOR 44 POINTS!!!! Also please answer it like don’t just put random stuff I actually need help here <3
1. A unit used to measure energy is the kcal.
a. What is the source of all
energy in the pyramid?
b. How much energy does this source provide to a square meter of the Earth per year? (Be sure your
answer includes units.)
2. The arrows represent the energy available to the next level of the pyramid.
a. What percentage of the source energy form question 1 is absorbed by the oak leaves? Divide oak levar got by the total sunlight hitting the earth’s surface.
b. By what process do the oak leaves harness this energy?
3. Describe how the consumers in one level of the pyramid obtain energy from the organisms at the previous level of the pyramid.
a. How much energy per year do caterpillars obtain from eating the leaves in a square meter of the oak tree?
b. What percentages the energy that was originally by the oak leaves is passed in to the caterpillars? Divide ye hat the caterpillars got by wag at leaves got.
c. What percentage of the energy absorbed by the oak leaves is not passed on to the caterpillars?
4. Calculate the percentage of the nervy that is transferred from one level of the pyramid to another for all of the levels?
a. Oak leaves to caterpillars (see question 3b)
b. Caterpillars to blue jays.
c. Blue jays to hawk.
5. Calculate the average percentage of energy that is transferred from one level to another using you answers in question 5. Note that this average percentage transfer is similar for many different types of energy pyramid in nature.
6. Explain why an energy pyramid in any ecosystem typically is limited to four or five levels only.
Answer:
If you use this link it gives you most of the answers, if you want I can try to find another link to help with the rest of the questions if you want me to
Explanation:
https://quizlet.com/_30xwac?x=1jqt&i=1ilexf
Answer:
What is the source of all energy in the pyramid in Model 1
Sunlight hitting the earth's surface
How much energy does this source provide to a square meter of the Earth per year? (be sure your answer includes units)
3,190,000 kcals
Label the pyramid levels in Model 1 with the following: primary producers, primary consumers, secondary consumers, and tertiary consumers
Oak tree leaves are the primary producers
Caterpillars are the primary consumers
Blue Jays are the secondary consumers
Hawks are the tertiary consumers
What percentage of the source energy from question 1a is absorbed by the oak leaves in Model 1?
8 %
By what process do the oak leaves harness this energy?
photosynthesis
Describe how the consumers in one level of the pyramid obtain energy from the organisms at the previous level of the pyramid
By consuming them
How much energy per year do the caterpillars in Model 1 obtain from eating the leaves in a square meter of the oak tree?
4,000 kcal
What percentage of the energy that was originally absorbed by the oak tree leaves is passed on to the caterpillars
13.5%
What percentage of the energy absorbed by the oak leaves is not passed on to the caterpillars
84.3%
With your group, list at least three possible uses and/or products of the energy absorbed by the oak leaves that did not contribute to the production of biomass.
Photosynthesis, heat, leaves changing colors
How many parts can be distinguished in the cerebellum?
Answer:
three lobes
Explanation:
Explanation:
Based on the surface appearance, three lobes can be distinguished within the cerebellum: the anterior lobe (above the primary fissure), the posterior lobe (below the primary fissure), and the flocculonodular lobe (below the posterior fissure).MARK ME AS BRAINLISTcompare and contrast the structure of prokaryotic and eukaryotic cells.
Answer:
Prokaryotic -Do not have a nucleusHave DNA arranged in a circular chromosomeDo not have membrane bound organellesSmaller in sizeOlderEukaryotic-Have a nucleus, vacuoles, mitochondria Have DNA arranged in a linear chromosomeHave membrane bound organellesLarger in sizeBoth- Contain: cell membrane, cytoplasm, ribosomes, DNAFunction is to make proteinshave certain parts that help them accomplish their function
Reproductive system when running
Female-
Male-
Own words 10 pts
I need help with the last two questions pleaseit’s due today.
7) What percentage of ppm of dissolved oxygen indicates good water quality?
a) 6.7
b) 8
c) 4.5
d) Below 4.5
Answer:
The answer is c. 4.5
So what is catalyst?
Answer:
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
"chlorine acts as a catalyst promoting the breakdown of ozone"
a person or thing that precipitates an event.
"the governor's speech acted as a catalyst for debate"
Explanation:
hope its help
Which apparatus allows us to appreciate the cell internal structures more clearly?
Answer: a light microscope is likely the answer they are after (can get to micrometer range)
an electron microscope is even more powerful it can get into the nanometer range
Explanation:
check out the image
Answer:
Some parts of an ecosystem may never recover after a oil spill
It is the amount of money that a seller sets for the item or product for sale?
Answer:
Expenses
Explanation:
Mendel’s pea plants had either purple or white flowers. This means that the plants
The answer is C: have two alleles for the gene.
Answer:
i think the answer is C
Explanation:
In general, what causes a sea breeze?
A. The difference in elevation between land and water
B. The difference in cloud cover between land and water
C. The difference in density between land and water
D. The difference in specific heat capacity between land and water
Need a 100% correct answer please
Answer:
During the day, the sun heats up both the ocean surface and the land. ... The wind will blow from the higher pressure over the water to lower pressure over the land causing the sea breeze. The sea breeze strength will vary depending on the temperature difference between the land and the ocean. At night, the roles reverse.
Answer:
Explanation:
D, the answer is d
4. Which of the following is true about a mutation? A.) it is always damaging to a person B.) it never harms the next generation D.)it may harm the next generation C.) it never passes down diseases
Answer:
D
Explanation:
Mutation can be harmful and it can have no effect.
Answer:
d
Explanation:
it is d because it just is so yw
Calculate the mass of the book on the moon.
On moon surface gravity (g) is 1.6 N/kg
Answer:
The Moon has a smaller mass than the Earth and so the pull of gravity by the moon on an object is smaller than on the earth. The moon has a smaller gravitational field strength. On the Moon, g = 1.6 N/kg.
Explanation:
if u like this answer plz mark as brainlist and follow me
(ONLY ANSWER IF YOU KNOW)
The excerpt below was written by Henry Stimson in 1941:
The atomic bomb was more than a weapon of terrible destruction, it was a psychological weapon
What did Stimson mean by this statement?
A. US leaders had tricked the Japanese into thinking they were more powerful than they were
B. Skillful use of the atomic bomb could force opponents to make concessions.
C. The atomic bomb was an ineffective way to end war
D. The atomic bomb was not quite as dangerous as many people thought
Answer:
C
Explanation:
The atomic bomb was an ineffective way to end war
Explain- Why are tobacco,alcohol and ultraviolet radiation listed as carcinogens in the table?