Answer:
There are three types of RNA: mRNA, tRNA, and rRNA. mRNA is the intermediary between the nucleus, where the DNA lives, and the cytoplasm, where proteins are made. rRNA and tRNA are involved in protein synthesis. Additional RNAs are involved in gene regulation and mRNA degradation.
Explanation:
Which layer of the
earth has the greatest
density? Why?
Answer: metal inner core
Explanation:
It is made of the densest components & it is under the greatest compression; due to the overlying layers.
The inner core of Earth has the greatest density due to:
- The inner core is made of solid iron and nickel
- The inner core gets consolidated due to pressure exerted by the other top layers.
What are the different layers of the Earth?
Generally the Earth is made of three different layers:
- Crust- The outer layer
- Mantle - The Middle Layer
- Core - The Inner Layer.
Crust:
Outer layer of the Earth and is thin, brittle and cold compared to other layers.
It is majorly made of light elements especially silica, aluminum and oxygen.
The thickness of crust varies for for land and ocean where the former is thicker than latter.
Mantle:
It is around 3000 km thick and is the thickest layer of the Earth. It starts mere at 30 km from the earth's crust.
It is majorly made of Iron, Magnesium and silicon and is dense, hot and semi solid.
The upper part of the mantle is liquid in nature called as Asthenosphere and it is believed that tectonic plates rides upon here and slide across.
Core:
Core is further divided into Outer core and Inner core.
Outer core is made of iron and nickel and is liquid in nature. It is heated largely by the radioactive decay of the elements of the uranium and thorium and this liquid churn huge turbulent current.
Inner core is a solid metal ball having radius of 1220 km. It is extremely dense and is mostly made of iron and nickel.
The temperature of inner core is similar to that of the surface of sun along with high amount of pressure.
Thus this layer has the greatest density amongst all the layers of the Earth.
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Distinguish among corms, bulbs, and tubers.
Answer:
Bulbs
Bulbs are plant storage organs generally grown underground, consisting of a short stem ( the basal plate ), from which grow overlapping, swollen leaves or leaf bases. The top growth emerges from the bulb center. Here's an example : See the attached photo.
Corms
Corms are not made up of leaves, but a vertical swollen compact stem, and as such are solid. The corm is protected by a tunic of old leaf petioles. Here's an example :See the attached photo.
Tubers
Tubers are, simply, enlargements in the underground stem or lateral root of a plant that are used for food storage. These vary greatly in appearance, but all have the same function. Here's an example : See the attached photo.
Which of the following statements best summarizes the factors that affect population growth?
A. When resources are available, populations grow until they reach carrying capacity.
B. The more limiting factors affect a population, the greater the population growth.
C. The carrying capacity will decrease when there are no limiting factors affecting the population.
Answer:
A
Explanation:
Before we try to answer the question lets define a few key terms
Key Terms:
Carrying capacity - The max population that can be sustained by the amount of resources in a specific environment
Limited factor are usually expressed as a lack of a particular resource.
Now lets look back at the answer choices
For A,
A. When resources are available, populations grow until they reach carrying capacity.
This statement makes sense because with available resources, a population will continue to increase until the amount of resources isn't enough for the population, in other words the population will increase until its reached its carrying capacity. So this might be the answer, however lets look at the other answer choices just in case.
For b,
B. The more limiting factors affect a population, the greater the population growth.
This statement would not be true because limiting factors usually are expressed as a lack of a particular resources. A lack of resources ( more limiting factors ) would lead to a population decreasing, not increasing, therefore B is not a true statement
For C,
C. The carrying capacity will decrease when there are no limiting factors affecting the population.
This statement would not be true because if there are no limiting factors ( which remember are expressed as a lack of particular resource ) the carrying capacity ( or the max population that can be sustained by the amount of resources in a specific environment ) would not change at all because there are no limiting factors changing the availability of the resources, therefore C is not the answer.
rudolph virchow concluded that new cells are produced from
Answer: The division of existing cells. This led to cell theory.
Hi there! Like the other person said, Rudolph Virchow concluded that new cells were created strictly from division of existing cells.
Because of this, it led to the "cell theory".
Have a nice rest of your day!
what types of organisms would you expect to perform fermentation?
Answer:
Many bacteria and yeasts
Explanation:
Many bacteria and yeasts carry out fermentation. People use these organisms to make yogurt, bread, wine, and biofuels. Human muscle cells also use fermentation. This occurs when muscle cells cannot get oxygen fast enough to meet their energy needs through aerobic respiration.
Answer:
Many bacteria and yeasts carry out fermentation. People use these organisms to make yogurt, bread, wine, and biofuels. Human muscle cells also use fermentation. This occurs when muscle cells cannot get oxygen fast enough to meet their energy needs through aerobic respiration.Explanation:
the outer region of the adrenal glands is called the
Answer:
adrenal cortex
Explanation:
Which of the following correctly compares fermentation and cellular respiration?
Question 20 options:
Cellular respiration produces more ATP molecules than fermentation.
Both provide ATP molecules, but only fermentation occurs when oxygen is present.
Both result in substantial ATP molecules and lactic acid production.
Cellular respiration provides ATP molecules at a slower rate than fermentation.
Answer:
NO SORRY I DONT KNOW
Explanation:
a rectangular room is 10 M long and 7.5 M wide the cost of covering the floor with carpet 1.25 m wide at two Both provide ATP molecules, but only fermentation occurs when oxygen is present.
250 per metre
1_____________________It is the temperature required for a liquid to become a gas.
2. _____________________It is the force upon a surface of an object by another force.
3_____________________It does not have a definite volume or shape. The atoms and molecules move freely and spread from one another.
4. _____________________It is the process where gas state turns into liquid state.
5. _____________________It is the process where liquid state turns into a gaseous state.
6. _____________________It is the transition from liquid state to solid state.
7. _____________________It is the change from a solid state directly to the gaseous state without going to a liquid phase.
8. ____________________It is the degree of hotness of a substance, related to the average energy of its molecules or atoms.
Answer:
1) 212° F
2)applied force
3)gases
4) condensation
5) evaporation
6) freezing
7) sublimation
8) temperature
Answer:
1) 100 °C
2) Applied force
3) Gas?
4) Condensation
5) Vaporization
6) solidification
7) Sublimation
8) Temperature
A dietician asks a patient about the food that the patient eats and makes the table below to summarize the results.MacromoleculeSuggested percentage of dietActual percentage of dietCarbohydrates45–65%70%Lipids20–35%5%Proteins10–35%25%Based on the table, what advice do you think that the dietician will give the patient?The patient should increase the amount of lean meats (proteins) and decrease the amount of oils in his or her diet.The patient should decrease the amount of lean meats (proteins) and increase the amount of oils in his or her diet.The patient should decrease the amount of rice and pasta and increase the amount of oils in his or her diet.The patient should decrease the amount of rice and pasta and increase the amount of lean meats (proteins) in his or her diet.
Explanation:
The patients to decrease lean meat and increase
The patient should increase the amount of lean meats (proteins) and decrease the amount of oils in his or her diet. Therefore, option "A" is correct.
What are macromolecules?Monomers are long chains of molecular subunits that comprise macromolecules, essentially polymers. Long polymers are present in proteins, carbohydrates, and nucleic acids. They are called macromolecules because of their large size and polymeric nature.
Macromolecules are able to speed up biochemical reactions, store and retrieve genetic information, provide structural support, and store fuel. The biological macromolecule is carbohydrates, lipids, proteins, and nucleic acids is an essential component of the cell.
Therefore, macromolecules are important for body function.
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the reticular layer of the dermis consists primarily of
Answer:
The reticular layer of the dermis (RD) consists of dense irregular connective tissue, which differs from the papillary layer (PD), which is made up of mainly loose connective tissue (note the difference in the number of cells).
Explanation:
Hope this helps...
which type of blood vessel holds the greatest volume of blood?
what distinguishes paracentric inversions from pericentric inversions?
Answer:
Inversions are of two types: paracentric and pericentric. Paracentric inversions do not include the centromere and both breaks occur in one arm of the chromosome. Pericentric inversions include the centromere and there is a break point in each arm.
Explanation:
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Interphase or Mitosis: Protein production is high
1. Mitosis
2. Interphase
Answer:
i think in interphase
Explanation:
Hope it helps u.
As an object moves toward another object the sound waves have lower frequency. True or False
Depth of Water (meters) Dissolved Oxygen (mg O2 per liter) Amount of Algae/sq. meter (kilogram) 1 9.2 550 5 9.0 535 10 8.5 404 15 7.0 155 20 5.5 45 25 4.2 12 Consider the data regarding the growth of algae in a large lake, like the one illustrated above. Plants release oxygen as a by-product of photosynthesis. Draw a conclusion about other life forms in the lake, based on this data. A) All of the life forms in the lake can be found within the top 10 feet of water. B) As you increase in depth of water, plant density decreases while fish density increases. C) Organisms in the lake rely on dissolved oxygen to survive. The lower the dissolved oxygen, the lower the survival rate. D) Plant survival is related to the amount of light (depth) but animal survival is related to the amount of oxygen available. The lower the amount of dissolved oxygen, the less animal life present in the lake.
Algae growth produces a high concentration of oxygen on the surface, which decreases with depth. The less oxygen available in deeper strata, the fewer surviving forms of life. The correct option is C.
-----------------------------------------------------------------------------------------------------------
Available data:
Depth of Water Dissolved Oxygen Amount of Algae/sq. meter
(meters) (mg O₂ per liter) (kilogram)
1 9.2 550
5 9.0 535
10 8.5 404
15 7.0 155
20 5.5 45
25 4.2 12
According to this table,
On the surface, there is a higher amount of algae, and hence, more dissolved oxygen. As it gets deeper, algae amount decreases as well as dissolved oxygen.
If oxygen decreases with depth, it suggests that plants -oxygen producers- lack, probably due to the lack of sunlight reaching the bottom.
Other forms of life
Algae growth on the surface blocks the pass of light to the deeper strata.The lack of light in deeper strata affects plants' growth.If there are no plants in deeper areas, there is no dissolved oxygen.Since animals need oxygen, they probably can not survive in deep regions.With no oxygen, the bottom turns into an anaerobic environment, in which anaerobic bacteria can survive.
These conditions can be related to eutrophication.
Eutrophication is a biological process produced in water by an oversupply of nutrients or organic matter.
This oversupply, mainly of nitrogen or phosphorous, favors phytoplankton multiplication, especially cyanobacteria.
Cyanobacteria overgrowth leads to an enhance in primary productivity and reduces the pass of radiation to deeper strata. This fact affects biota in deeper zones.
Gradually sedimentation begins, caused by the death of some vegetable organisms that sink in the bottom.
These sediments suffer decomposition in the absence of oxygen. Anaerobic bacteria act and produce fermentation.
Phytoplankton overgrowth on the surface and fermentation process in the bottom, originate toxic compounds that can damage the animals in the water body.
Animals die, creating more sediments in the bottom where there are anaerobic conditions.
The continued increase in decomposition and fermentation produces a bad smell and toxicity.
The result of eutrophication is the stratification of the water mass:
First superficial layer, the overgrowth of blue-green algae, produces toxins and interrupts the pass of light to deeper areas. The surface then becomes warmer. The second layer might have oxygen available for the animals. In the third layer, there is no oxygen, so life is impossible for animals or plants. In the fourth layer, there are animals and plant remains in the process of sedimentation. At the bottom, there are organic matter and anaerobic bacteria in charge of decomposition and fermentation, through which they produce toxic gases and smell.Options:
A) All of the life forms in the lake can be found within the top 10 feet of water. FALSE. Depends on the conditions and the species.
B) As you increase in depth of water, plant density decreases while fish density increases. FALSE. Plant and animals density decrease, as available oxygen decrease.
C) Organisms in the lake rely on dissolved oxygen to survive. The lower the dissolved oxygen, the lower the survival rate. TRUE.
D) Plant survival is related to the amount of light (depth) but animal survival is related to the amount of oxygen available. The lower the amount of dissolved oxygen, the less animal life is present in the lake. FALSE. Light does not reach the bottom, so there are no plants there. Plants also depend on oxygen, not only animals.
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what contributes to antigenic shift in influenza viruses?
Answer:
The particular structure of the influenza virus genome and function of its viral proteins enable antigenic drift and antigenic shift.
Answer:
Between worldwide outbreaks, known as pandemics, influenza viruses undergo constant, rapid evolution (a process called antigenic drift ), which is driven by mutations in the genes encoding antigen proteins.
Antigenic shift is the process by which two or more different strains of a virus, or strains of two or more different viruses, combine to form a new subtype having a mixture of the surface antigens of the two or more original strains. The term is often applied specifically to influenza, as that is the best-known example, but the process is also known to occur with other viruses, such as visna virus in sheep. Antigenic shift is a specific case of reassortment or viral shift that confers a phenotypic change.
Explanation:
Explain one way global warming will affect the water cycle
Answer:
the glaciers will melt causing the ocean levels to rise immensly
The water cycle would be affected by global warming's hotter temperature. There'd be increased precipitation causing floods and dryer land areas in different parts of the world.
Explanation:
Answer:
add more water
Explanation:
how do chlorophyll pigments absorb energy from light?
Answer:
They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. A pigment is a molecule that has a particular color and can absorb light at different wavelengths, depending on the color. ... The energy absorbed from light is transferred to two kinds of energy-storing molecules.
Hi, I learned that an Knight anole is a invasive species in Florida. There is one on my humming bird feeder. Is it alright to leave it alone and let it drink the honey or are they too much of a threat to Florida?
Answer:
they pose a serious threat to the diversity of native lizards and birds.
Explanation:
You have a cell, with a semi-permeable
membrane and a 1.5% potassium
concentration. You put it into a solution of
1.0% potassium. Is the solution hypertonic or
hypotonic? What direction would you expect
water to flow? What do you expect to see
happen to the cell?
the presence of ___________ chemically distinguishes protein from carbohydrate and fat.
Answer:
Nitrogen
Explanation:
The presence of Nitrogen chemically distinguishes protein from carbohydrate and fat.
based upon structural classification, what type of joint is a suture?
Based upon structural classification, what type of joint is a suture? Sutures are classified structurally as fibrous joints. They would be classified functionally as synarthrotic joints based upon their degree of movement.
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a process common to all living organisms, whether aerobic or anaerobic, is
Answer:
The process of respiration is similar in all organisms, whether plants or animals – carbon dioxide is given out and oxygen is used up, and a lot of energy is produced. In plants, specific organs for breathing are absent. The exchange of gases, however, occurs by the process of diffusion.
Explanation:
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A process common to all living organisms, whether aerobic or anaerobic, is glycolysis as part of the metabolism of all living organisms.
Glycolysis is the universally distributed metabolic pathway in all organisms and cells, by means of which a glucose molecule is degraded to two pyruvate molecules, in addition to producing energy in the form of ATP and NADH.
Specifically, ATP is the only high-energy phosphate that is formed primarily from the energy gain of the cell through oxidative processes (aerobic) or glycolysis (aerobic or anaerobic).
Glycolytic enzymes are located in the cytoplasm, near the contractile filaments, therefore, the ATP produced by the glycolytic pathway is formed near the place where it is used.
Phases:
Preparatory: Four reactions: two are phosphorylation and consume 2 ATP per glucose molecule. The breakdown of hexose produces 2 trioses, which end in 2 molecules of glyceraldehyde-3-P. .Oxidation of glyceraldehyde-3-phosphate (x 2) to pyruvate (x 2) and coupled formation of ATP in 2 of the reactions, in total 4 ATP and 2 NADH are formed.In aerobics glycolysis consists of extracting energy from organic molecules from the oxidation of carbon by oxygen.
In anaerobic glycolysis the element used to achieve oxidation is not oxygen but sulfate or nitrate.
Therefore, we can conclude that a process common to all living organisms, whether aerobic or anaerobic, is glycolysis as part of the metabolism of all living organisms.
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16. Which statement about green plants is true? A. Most green plants do not need food. В. Most green plants take in food through their roots. C. Most green plants take in food through their leaves. D. Most green plants manufacture their own food.
Answer:
D. most green plants manufacture their own food.
Explanation:
Green plants have the ability to make their own food. They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. ... Through photosynthesis, the plant uses the stored energy to convert carbon dioxide (absorbed from the air) and water into glucose, a type of sugar.
6) Write an equation with an infinite amount of solutions.
Answer:
any equation in the form of
ax+by+c=0
where a, b, c are constant numbers and x, y are variables
also why asking in biology
An organism that is unicellular, prokaryotic, asexual, has a cell wall and is found in almost all environments except the most
extreme conditions is a member of the kingdom
Eubacteria
Protista
Fungi
Plantae
Answer:
Eubacteria
Explanation:
Cuz, Archea is the king, when it comes to surviving even in hell.
what forms after the glycosidic linkage reaction between glucose and galactose is complete
What forms after the glycosidic linkage reaction between glucose and galactose is complete would be lactose.
Glucose and galactose are known as simple sugars or monosaccharides. Monosaccharides can combine together to form disaccharides or even polysaccharides.The combination of monosaccharides to form di or polysaccharides happens by a process known as condensation reaction.The condensation reaction results in the formation of glycosidic linkage or bond and elimination of water moleculesGlycosidic bond is a type of covalent bond th joins one sugar molecule to another sugar or non sugar molecule.Thus, lactose is a dissacharide consisting of one glucose and one galactose unit which combine together by condensation and formation of glycosidic bond with elimination of water.
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Answer:
Water and lactose.
Explanation:
Glucose and galactose combine via glycoside linkage, forming lactose and water. Lactose is a sugar mostly found in milk.
what is the correct sequence of steps in cellular respiration, starting with glucose?
where does the energy start and where does it end
Answer:
Our energy supply comes mainly from fossil fuels, with nuclear power and renewable sources rounding out the mix. These sources originate mostly in our local star, the Sun.
That light energy will be absorbed and converted to heat. Then it will radiate out into space as infrared thermal radiation. It will travel in that form for a long time, once it gets out of the Earth's atmosphere.
Explanation:
Hope it helps
Answer:
You did not really specify your question but I am guessing it is talking about the food chain and the food chain starts at the plants and ends at the predator who does not have a predator.
Explanation:
Look at the diagram below. In which organ of the human body would structures like these be found? Please help I was never taught this!!!
Answer:
small intestine
Explanation:
These structures are found in the Small Intestine of human body.
These are villi or microvilli.These increase the surface area which help in absorption.What are microvilli?These are the finger like membrane protrusions, that increase the surface area.These have a network of thin and small blood vessels close to the surface. The surface of the villi absorb the digested food.
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