Answer:
deoxyribose, uracil, and phosphate
Explanation:
William wanted to create a report on a geographical location with the greatest species diversity. Which ecosystem can he consider for his report?
Answer:
Forest ecosystem or marine ecosystem.
Explanation:
Forest ecosystem is considered for his report because large number of organisms are present in forest ecosystem. Species diversity is greatest in the geographical location of tropics, particularly in tropical forests. Marine ecosystem is also considered for his report due to the presence of large number of different types of species particularly in coral reef which is a habitat of large number of organism.
Which of the following could result if meiosis did not occur in the process of sexual reproduction?
What would happen if meiosis did not occur in sexually reproducing organisms? The chromosome number would double in each generation because the process of meiosis halves the number of chromosomes in the gametes. ... the exchange of genetic material between homologous chromosomes that results in recombinant chromosomes.
Hope this helps a bit
List and explain the 3 paths natural selection can take.
Answer:
1. Stabilizing Selection
2. Directional Selection
3. Disruptive Selection
Explanation:
Stabilizing Selection
This type of natural selection occurs when there are selective pressures working against two extremes of a trait and therefore the intermediate or “middle” trait is selected for. If we look at a distribution of traits in the population, it is noticeable that a standard distribution is followed:
Example: For a plant, the plants that are very tall are exposed to more wind and are at risk of being blown over. The plants that are very short fail to get enough sunlight to prosper. Therefore, the plants that are a middle height between the two get both enough sunlight and protection from the wind.
Directional Selection
This type of natural selection occurs when selective pressures are working in favour of one extreme of a trait. Therefore when looking at a distribution of traits in a population, a graph tends to lean more to one side:
Example: Giraffes with the longest necks are able to reach more leaves to each. Selective pressures will work in the advantage of the longer neck giraffes and therefore the distribution of the trait within the population will shift towards the longer neck trait.
Disruptive Selection
This type of natural selection occurs when selective pressures are working in favour of the two extremes and against the intermediate trait. This type of selection is not as common. When looking at a trait distribution, there are two higher peaks on both ends with a minimum in the middle as such:
Example: An area that has black, white and grey bunnies contains both black and white rocks. Both the traits for white and black will be favored by natural selection since they both prove useful for camouflage. The intermediate trait of grey does not prove as useful and therefore selective pressures act against the trait.
NS
What are magnetic field lines?
A. Lines that show the shape of a
magnetic field
B. Lines that show the path of electrons
C. Lines that show aligned atoms
Answer:
A
Explanation:
Magnetic field lines are a visual tool used to represent magnetic fields. They describe the direction of the magnetic force on a north monopole at any given position. The density of the lines indicates the magnitude of the field.
Which nutrient cycle has no Gas Phase?
Answer:
Describe the steps that you would take to effectively prepare for a discussion about a debatable issue.
Explanation:
____ can be used for different types of surgery.
a. Lenses
b. Lasers
c. Diffractions
d. Refractions
(Lasers)
Answer:
lenses can be used for diffrent types of surgery
The primary source of energy in most ecosystems is/are
Answer:
The Sun.
Explanation:
Energy reaches the Earth in the form of electromagnetic radiation.
Terrestrial solar radiation means solar radiation that reaches the Earth after passing through the Earth's atmosphere. About 97% of solar radiation reaches the Earth in the range of wavelengths 0.29 - 2.5 μm, and about 3% with wavelengths greater than 2.5 μm.
A environmental scientist buys 20 gallons of oil eating bacteria to help remediate an area affected by an oil spill. The volume of water the scientist wants to cover with this bacteria is 5 ft³. What volume of water can the scientist cover with the bacteria she purchased? (1 gal = 0.13 ft³)
Answer:
2.6 [tex]ft^3[/tex]
Explanation:
Using the conversion factor:
1 gallon = 0.13 [tex]ft^3[/tex]
Therefore,
20 gallons = 20 x 0.13
= 2.6 [tex]ft^3[/tex]
This means that only 2.6 [tex]ft^3[/tex] out of the 5 [tex]ft^3[/tex] total volume of water the scientist wants to cover can actually be covered by the bacteria that was purchased.
1. Describe the shape of a DNA molecule.
Answer:
Explanation:
If you think of the double helix structure as a ladder, the phosphate and sugar molecules would be the sides, while the bases would be the rungs.
Answer:If you think of the double helix structure as a ladder, the phosphate and sugar molecules would be the sides, while the bases would be the rungs.
1. When a consumer eats a producer, 10 percent of the producer's energy is passed on to the consumer trophic level. What happens to the other 90 percent?
A. It is added back to the soil by decomposers.
B. It is used by the producer to pass on to the next trophic level.
C. It is used for cell processes or released as heat.
D. It is consumed and used by the consumer.
2. Why is there less biomass at the top of the energy pyramid?
A. Secondary and tertiary consumers have to consume a lot more food to support themselves, so there are fewer of them.
B. Secondary and tertiary consumers live longer, so there are fewer of them because they reproduce more slowly.
C. Secondary and tertiary consumers are larger, so there are fewer of them.
D. Secondary and tertiary consumers have bigger ranges, so there are fewer of them because they each need a lot of space.
3. Using the ten percent rule, determine how many kilocalories of energy the tertiary consumer tuna will receive.
Algae: 135,000 Kcal
Shrimp: _
Lantern Fish: _
Tuna: _
A. 135 Kcal
B. 1,350 Kcal
C. 135,000 Kcal
D. 13,500 Kcal
4. Read the following statements about various species of plants and animals. Which one would be classified as an invasive species?
A. Kudzu, a plant from Japan, was introduced as a foliage crop and to reduce soil erosion. It grows up to a foot per day, smothering low-growing plants and killing trees.
B. Dandelions are plants from Eurasia. They are often considered weeds by homeowners and killed off by using herbicide. They can be consumed in salads or as tea and are the first food resource for bees in the spring.
C. Honey bees are from Europe and can sting people. They are often farmed in America for their ability to pollinate and provide honey.
D. Loosestrife beetles, native to Eurasia, have been released in various American states to combat the invasive plant, purple loosestrife.
5. Using the following formula to find the efficiency of energy transfer between the harbor seal (2,500 Kcal) and a polar bear (375 Kcal)
(Energy level transferred to next level) / (Total energy input) × 100
A. 15%
B. 20%
C. 10%
D. 12%
Thank you so much if you answer this:) I'm working on it and will probably figure them out but a little help would be appreciated. <3
Answer: I just to happen to be working on this quiz right now. I got 5/5 on it, so I hope this helps :D
~Ten Percent Rule Quick Check~
1. B) It is used for cell processes...
2. D) Secondary and tertiary consumers have to consume a lot more..
3. D) 135 Kcal
4. C) Kudzu, a plant from Japan...
5. A) 15%
^This is confirmed valid as of January 17th, 2022^
Consumers are the organisms that depend on others for food and energy for the metabolic process while the producers produce their food at the trophic levels.
The correct options are 1. C, 2. A, 3. A, 4. A and 5. A.
The trophic levels can be explained as:1. In the trophic levels the energy gets decreased as it passes from one level to another because it is used in the cellular process it is released in the form of heat.
2. Secondary and tertiary consumers have to feed a lot and hence, they are fewer in number compared to the producers. They maintain the population and balance out the producer and consumer ratio.
3. According to the 10 % rule of energy transfer, the Tuna will receive 135 Kcal of energy because the energy decrease by 10% as one moves from the lower trophic to the upper levels.
4. The species that are non-native to a place or region are called invasive species hence, the Kudzu plant is the invasive species as it is introduced from Japan.
5. Given,
Energy of Seal = 2,500 Kcal
The energy of polar bear = 375 Kcal
The 10% of 2500 will be 250 and the 5 % 125 thus, 15% is the efficiency.
Therefore, the correct options are 1. C, 2. A, 3. A, 4. A and 5. A.
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What are the differences between the Arctic and
Antarctic Regions *
Answer:
The primary difference between the Arctic and Antarctica is geographical. The Arctic is an ocean, covered by a thin layer of perennial sea ice and surrounded by land. ... Antarctica, on the other hand, is a continent, covered by a very thick ice cap and surrounded by a rim of sea ice and the Southern Ocean.
Explanation:
what type of EM waves are used to observe objects from outer space
Answer:
Space telescopes can carry instruments to observe objects emitting various types of electromagnetic radiation such as visible, infrared or ultraviolet light; gamma rays; or x-rays. X-ray telescopes, such as the Chandra X-ray Observatory, use X-ray optics to observe remote objects in the X-ray spectrum.
Explanation:
becuse u ugly jk jk jk im not serious ok
How is energy released from ATP?
Answer:
food zygote d9gugousfoysocysohcoecu sperm
Answer:
In a process called cellular respiration, chemical energy in food is converted into chemical energy that the cell can use, and stores it in molecules of ATP. ... When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy stored in the bond that the cell can use to do work.
what animals eat leafy sea dragons? also want to do leafy sea dragons eat?
Bromine is a liquid at room temperature. The volume of a sample of bromine is measured in a 50 ml beaker and a 100 ml beaker. How will the two
measurements compare?
A. The volume of bromine will be larger in the 100ml beaker.
B. The volume of bromine will be smaller in the 50ml beaker,
C. The volumes will be the same.
D. Both A and B
The actual volume of bromine in each beaker will be same only the difference in height will be comparable. Therefore, option (C) is correct.
What are the properties of liquid ?A liquid's attributes are;
1) Compared to the volume occupied by a gas, the volume of a liquid is relatively stable at conditions that allow it to remain in the liquid state.
2) A liquid will take the form of the container it is placed in.
3) A liquid's surface in a container must be flat for the attraction forces between its molecules to be in equilibrium both at the liquid's surface and within its body.
Therefore, there will be variations in the measured height of the same volume of bromine in each beaker given that the volume of the bromine is measured in a 50 ml beaker and a 100 ml beaker.
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How might it be possible for your baby to show a trait that neither you or your mate has?
Answer:
it could be passed on from generations, even though if your mother or father doesn't have those traits
The sun, rocks, water are all example of...
Answer:
are examples of abiotic factors
Explanation:
When a person's temperature gets too high, they will automatically sweat to cool down.
Sweating is considered a ___________________.
Answer:
Perspiration
Explanation:
If you had options that could have helped but I think perspiration is the correct answer.
Hope this helps :D
A doctor is diagnosing a patient with gigantism. Which of the following sources would be the least helpful in making
that diagnosis?
O growth chart
medical book
patient's family history
O patient's diet
Answer:
The answer is D, patient's diet.
Explanation:
As per the observation, it is clear that the correct answer is a medical book as it will have the medical history of the patient.
Gigantism is an extreme situation this is almost usually due to an adenoma, a tumor of the pituitary gland. Gigantism happens in sufferers who had immoderate boom hormones in childhood. The pituitary tumor cells secrete an excessive amount of boom hormone (GH), which main to many adjustments withinside the body.
How is gigantism diagnosed?If gigantism is suspected, the prognosis is commonly shown via way of means of taking blood assessments to degree the stages of boom hormone and insulin-like boom component 1 (IGF1) circulating withinside the blood. IGF1 is launched into the blood often via way of means of the liver in reaction to boom hormone.
Thus it is clear that medical books will have a medical history of patetint wityh gigantism.
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Help (will give crown for answer)
Answer:genes
Explanation:
Priscilla was building a circuit that used copper wires to connect a battery to a light bulb. As she connected the final wire from the light bulb back to the battery, the light bulb turned on. Priscilla knew that current was now flowing through her closed circuit. What makes the current in the circuit flow?
Answer:
The complete path provided by the closed circuit enables electric current produced by the battery to flow round the circuit
Explanation:
Electric current consists of charges (electrons) in motion from one region to another.
An electrical circuit is any closed path through which electric current can flow.
An electrical circuit consists of an energy source that supplies the electrons moving, a path along which the electrons can travel, and a load or appliance that uses the electrical energy. When the circuit is broken at any point, electrons will cease to flow since there is no complete path for it to flow. Such a circuit is known as an open circuit.
In the circuit built by Priscilla, the battery serves as a source of energy by providing the electrons that moves round the circuit. The wires provides the path for electrons to flow from the battery through the light bulb and back to the battery. When she connected the final wire from the bulb back to the battery, the circuit becomes complete/closed and current then flows to light up the bulb.
pls help!!
Which row shows the chambers of the heart, from those with the thickest walls to those with the
thinnest walls?
from top to bottom it goes from the thickest to thinnest
A.
atria
left ventricle
right ventricle
B
atria
right ventricle
left ventricle
с
left ventricle
right ventricle
atria
D
right ventricle
left ventricle
atria
Which list the layers of the atmosphere from earth surface outward?
Answer:
In order from earth to space it would be troposphere, stratosphere, Mesosphere, Thermosphere, exosphere (ionosphere.)
Explanation:
^
troposphere, stratosphere, mesosphere, thermosphere
How do I fly? :(;):)
Answer:
Hm
Explanation:
Try a few things like an airplane, jetpack, etc
Plants receive carbon dioxide through their ____________.
Answer:
leaves,stomata
Explanation:
The carbon dioxide enters the leaves of the plant through the stomata present on their surface.
Answer:
Carbon dioxide enters through tiny holes in a plant's leaves, flowers, branches, stems, and roots.
Explanation:
PLS HELP ME IM STRESSING RIGHT NOW I JUST NEED HELP ON THIS
Which statement accurately describes a mountain ecosystem?
They usually host three or more ecosystems where animals can’t live.
They usually host one ecosystem with a variety of wildlife.
They usually host one ecosystem with a variety of plants.
They host three or more distinct ecosystems.
Use the word “capacity”in a sentence.
Answer:
The weight capacity in this elevator is over its limit, somebody is gonna have to step out
When making a Punnett square the alleles of the mother and father are written at the top and side of the four square box. True or False
It is True that when making a Punnett square the alleles of the mother and father are written at the top and side of the four square box.
Answer:
True
Explanation:
There is one letter per box on the top two, and left two.
Use the following questions to write your conclusion to your lab report.
What did you learn from doing this lab? (Did the volcano have an effect on the ability of a predator to catch their prey? What might this mean for future generations? Include numbers from your data tables to show these changes.)
How could you make the lab better?
Answer:
WHat??
Explanation:
What are some treatments for cancer? Select all choices that apply.
A. removal by surgery
B. treatment with high-energy radiation
C. treatment with chemical compounds
D. removal by cyclins
Answer:
I know its A and B but I'm not sure if there are other treatments besides those two
Explanation:
Removal by surger and treatment with high-energy radiation.
What is treatment of cancer?
Cancer is a condition when a few of the body's cells grow out of control and spread to other bodily regions.
In the millions of cells that make up the human body, cancer can develop practically anywhere. Human cells often divide (via a process known as cell growth and multiplication) to create new cells as the body requires them.
Occasionally, this systematic process fails, causing damaged or aberrant cells to proliferate when they shouldn't. Tumors, which are tissue masses, can develop from these cells. Tumors may or may not be cancerous.
Therefore, Removal by surger and treatment with high-energy radiation.
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