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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vesicles formed from phagocytosis often fuse with a common cellular organelle. based on your knowledge of cellular biology, what organelle is this?
Answer:Lysosomes in phagocytosis and autophagy. In phagocytosis, large particles (such as bacteria) are taken up into phagocytic vacuoles or phagosomes.
Explanation:
what can the enzyme sucrase break down?
Answer:
Sucrase is an enzyme that breaks sucrose down into glucose and fructose.
Explanation:
The bonds between the glucose and fructose molecules making up the disaccharide sucrose break due to the enzyme sucrase, and water is added as
H
and
OH
to the two molecules. This is called a hydrolysis reaction.
Hydrolysis is a chemical reaction in which water (hydro) breaks (lysis) a chemical bond in a dimer (two molecules bonded) and polymer (many molecules bonded) by adding
H
to one molecule and
OH
to the other molecule.
why do people think
why are some people good at something and others are not
why is the big bang called big bang
why is the earth round why whywhwy
Answer:
i d k l o l
Explanation:
what is the main substrate in the first step of glycolysis?
Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH.
the release of ________ to muscle cell receptors triggers muscle contractions.
Answer:
The release of acetylcholine to muscle cell receptors triggers muscle contractions.
Explanation:
Which traits in the investigation showed incomplete dominance?
Answer:
A child born with semi-curly/wavy hair
Explanation:
A child born with semi-curly/wavy hair is individuals exhibiting incomplete dominance because the crossing of parents alleles both straight and curly hairs to produce such offspring. Thus, incomplete dominance occurs to produce an intermediate trait between the two parent traits.
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A student wants to develop an explanation of the role cellular respiration and photosynthesis play in the cycling of matter.
Answering which of the following questions would MOST help the student develop an explanation?
a
Which type of energy is used during photosynthesis and released during cellular respiration?
b
Which products of cellular respiration are also used as inputs during photosynthesis?
c
Which inputs or outputs of photosynthesis and cellular respiration are a source of heat?
d
Which cell organelles carry out the processes of photosynthesis and cellular respiration?
Answer:
D. Which cell organelles carry out the process of photosyinthesis and cellular respiration?
Cellular respiration is the process which occurs in the mitochondria of organisms (plants and animal) to break down sugar in the presence of oxygen to release energy in the form of ATP. This process generate carbon dioxide and water as waste products.
Photosynthesis is defined to as process by which green plants and certain other organisms transform light energy into chemical energy occurs in organelle chloroplast. Thus, the correct option is D which is which cell organelles carry out the processes of photosynthesis and cellular respiration?
What is ATP?
Adenosine 5′-triphosphate, (ATP) is an important “energy molecule” found in all life forms. Mainly, it is a coenzyme which works with enzyme namely ATP triphosphatase to transfer energy to cells by releasing its phosphate groups.
Mitochondria is known as the power house of cell and chloroplast is organelle produce green colour pigment called chloroplast which help in photosynthesis.
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If you look straight at an object when it is nearly
dark, you may find it difficult to see it. It is easier
to see if you look just to one side of it. Explain
why this is
Answer:
When you don't look directly at something, its focused on parts of the retina mostly populated by rod photoreceptors.
Explanation:
rod preceptors are more sensitive to dim light than the cones are, which are clustered at the part of retina you use to look at something directly.
Someone plz help me :(
Answer:
32
Explanation:
Describe the significance of enzymes in our digestive system having different optimal pH and optimal temperatures. (Hint: What does this allow our bodies to do?)
Answer:
Digestive enzymes play a key role in breaking down the food you eat. These proteins speed up chemical reactions that turn nutrients into substances that your digestive tract can absorb. Your saliva has digestive enzymes in it. Some of your organs, including your pancreas, gallbladder, and liver, also release them.
For most enzymes to operate in the body, the optimal temperature is 37 degree Celsius or 98 degrees Fahrenheit. Most of the human enzymes have a maximal activity at pH around 7.2, which is the pH of most body fluids. However, there are exceptions such as, pepsin.
which does not maintain the health of your endocrine system?
Answer:
Getting 5 hours or less of sleep every night.
Explanation:
Hope this helps...
Which characteristic best supports that an offspring is produced by sexual reproduction and not asexual reproduction?
Answer:
The offspring has the same number of chromosomes as its mother and father.
Explanation:
The child shares the same number of chromosomes with both parents. Two parents participate in sexual reproduction, which results in children with distinct genetic makeup.
What is sexual reproduction?A diploid zygote is created during sexual reproduction when two haploid gametes combine during fertilization.
Asexual reproduction creates clones of the original parent, which results in kids that are genetically identical to the parent. Asexual reproduction allows for the rapid production of vast numbers of children by a single person.
This is due to the fact that in asexual reproduction, the only single parent produces an additional child that is genetically identical to the parent.
Therefore, the sexual mode of reproduction is seen to be superior to the asexual mode.
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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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Summarize the role
of organisms, including micro-
organisms, in maintaining the
equilibrium of a marine ecosys-
tem while a dead whale decays
on the ocean floor.
Answer:
The disturbance that causes the succession begins with a large whale dying and sinking to the bottom of the ocean floor. The whale carcass attracts scavengers and decomposers who eat the decaying meat.
Then, within a year, most of the whale's tissues have been eaten. The remainder of the carcass is then eaten by a much smaller number of fish. The decomposition of the whale's body will enrich the surrounding sediments with nutrients.
When only the skeleton is left, a third community moves in. Heterotrophic bacteria will begin to decompose the oils found inside whale bones. During this process, they will release chemical compounds that serve as energy sources for other bacteria. This chemosynthetic bacteria will also support a wide variety of nearby organisms living on the bones.
The decay of a dead whale on the ocean floor provides food and energy for a variety of organisms, which helps to maintain the equilibrium of the marine ecosystem.
When a whale dies, it sinks to the ocean floor and begins to decay. The decay process releases nutrients into the water, which attracts a variety of organisms, including bacteria, fungi, and worms. These organisms feed on the whale's carcass, breaking it down into smaller and smaller pieces.
As the whale decomposes, it releases carbon dioxide and other nutrients into the water. These nutrients are then used by other organisms in the ecosystem, such as algae and phytoplankton. The algae and phytoplankton use the nutrients to photosynthesize, which produces oxygen. The oxygen is then released into the water, which helps to support other life in the ecosystem.
The decay of a dead whale also provides a habitat for a variety of organisms. The whale's carcass creates a sheltered environment for small organisms, such as crabs and shrimp. These organisms provide food for larger organisms, such as fish and seabirds.
The decay of a dead whale is an important part of the marine ecosystem. It provides food and energy for a variety of organisms, which helps to maintain the equilibrium of the ecosystem. The decay process also releases nutrients into the water, which are then used by other organisms in the ecosystem.
Here are some additional details about the role of organisms in the decay of a dead whale:
Bacteria: Bacteria are the first organisms to colonize a dead whale. They break down the whale's carcass into smaller and smaller pieces.Fungi: Fungi also play a role in the decay of a dead whale. They break down the whale's carcass into even smaller pieces, releasing nutrients into the water.Worms: Worms are another important group of organisms that help to decompose a dead whale. They burrow into the whale's carcass, breaking it down into even smaller pieces.Algae: Algae and phytoplankton use the nutrients released by the decay of a dead whale to photosynthesize. This produces oxygen, which helps to support other life in the ecosystem.Fish: Fish are attracted to the carcass of a dead whale. They feed on the whale's flesh and bones, as well as on the smaller organisms that live on the carcass.Seabirds: Seabirds also feed on the carcass of a dead whale. They eat the whale's flesh and bones, as well as the smaller organisms that live on the carcass.The decay of a dead whale is a complex process that involves a variety of organisms. These organisms play an important role in maintaining the equilibrium of the marine ecosystem.
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what does a plant gain from having more than one pigment?
Answer:
Multiple pigments allow the plant to have both photosynthesis and cellular respiration to maximize the amount of energy they capture from the sun. ... Multiple pigments absorb different wavelengths of light, allowing the plant to capture the maximum amount of energy from the sun.
Explanation:
happy to help
In your own words, explain how
flow rate is affected by viscosity,
cohesion and adhesion.
Answer:
Heating a gas increase its viscosity .When the viscosity of a fluid decreases,it's flow rate increase. You can compare the viscosity of different fluids by comparing their flow rate. Flow rate is affected by adhesion and cohesion. The slower the fluid flows ,the greater the viscosity.
which description of skeletal cartilage is incorrect?
The incorrect description is that Costal cartilages reinforce airways and support the external nose
The options were omitted but the complete question is :
Which description of skeletal cartilage is incorrect
Fibrocartilages are able to withstand both pressure and stretch.
Costal cartilages reinforce airways and support the external nose.
Elastic cartilages are able to tolerate repeated bending.
Articular cartilages cover the ends of most bones at moveable joints.
Costal cartilages are said to be at the anterior extreme of a rib cage. Their function is to give the ribcage a flexible structure and connect the ends of the ribs to the sternum. Respiratory cartilages are present in the Trachea and are responsible for flexible inhalation and exhalation thereby reinforcing airways and providing support to the structure of the nose.
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true or false? the endosperm in a seed develops into the embryo.
False. The purpose of the endosperm is to provide nutrients for the embryo.
What would be the strand of dna replicated from ATCGGATTTACCG
Answer:
The new DNA strand will have the bases GATCCA.
Explanation:
Adenine (A) always pairs up with thymine (T), and guanine (G) will always pair up with cytosine (C).
(Adenine and Thymine have only two places to form hydrogen bonds, whereas Guanine and Cytosine have three places. )
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Pls help click to see full image worth 30 pts
Why is ammonification an important process? (4 points)
what is the three parts of the cell theory?
Answer:
the first one is all known things are made up of cells.
the second one is all living cells arise from pre-existing cells by division
and the last one is the fundamental unit of structure and function in all living organisims
Explanation:
:)
Which is NOT a homeostatic mechanism?
O fecal regulation
O water regulation
oxygen regulation
thermoregulation
Explanation:
To be precise, homeostasis is a process/phenomenon not a system. Homeostasis is actually the process of maintaining a stable internal environment despite changes in the external environment. There are mechanisms in organisms that regulate pH and this regulation is an example of homeostasis.
Explain why quaternary consumers occupy the top position in the pyramid of energy.
Answer:
quaternary consumers, they occupy the top position in a pyramid because nothing preys upon them in return. also a prey of one species could be another predator of species.
Explanation:
Answer:
They occupy the top position in a pyramid because nothing preys upon them in return. Also, a prey of one species could be another predator of species.
Explanation:
about 90% of the cells of the epidermis are of which type?
Answer:
Keratinocytes - 90% of the epidermal cells are keratinocytes, cells which produce keratin, a fibrous protein.
hope this helps <3
Answer:
Keratinocytes
90% of the epidermal cells are keratinocytes, cells which produce keratin, a fibrous protein.
Which of these statements about the theory of evolution are correct
Answer:
the correct ones:
1. Organisms have changed over time and could continue to change in the future
2. Darwin's theory of evolution was influenced by ideas from others
4. Organisms evolved through natural selection.
the false one:
3. The theory states that organisms will remain the same throughout the history of Earth
. List the measures to reduce noise pollution.
Answer:
Turn off Appliances at Home and offices. ...Shut the Door when using noisy Machines. ...Use Earplugs. ...Lower the volume. ...Stay away from Noisy area. ...Follow the Limits of Noise level. ...Control Noise level near sensitive areas. ...Go Green by planning trees.the __________ vertebrae articulate with the corresponding ribs.
Answer:
Each vertebra contains three points of articulation with ribs. The superior demifacet of a thoracic vertebra articulates with the corresponding rib (costovertebral joint). This rib articulates again with the costal facet on the transverse process (costotransverse joint). The inferior demifacet articulates with the rib below.
Explanation:
Which of the following is false of the integumentary system?
A. The inner layer of the epidermis divides quickly
B. The body produces more melanin with stronger sunlight exposure
C. Too much UV radiation can mutate DNA in skin cells and cause cancer
D. Keratin is the pigment responsible for skin color
Answer:
Hey there the answer would be D. Keratin is the pigment responsable for skin color.
Explanation:
A. The top layer of the epidermus is made of dead skin cells. The inner player has to be constatnly making more cells
B.The body procudes more melanin with stronger sunlight exposure. This results because the UV of the sun causes T-T dimers which is a type of DNA damage.
C. UV causes genetic mutation which can result in cancer if not fixed by the cell
D.Keratin is found in the epidermis and with thick layer of skin found in the hands and feet. Melainin is responsible for skin color.
Summarize information about apoptosis
Answer:
Explanation:
One purpose of apoptosis is to eliminate cells that contain potentially dangerous mutations. If a cell's apoptosis function is not working properly, the cell can grow and divide uncontrollably and ultimately create a tumor
