Answer: D. The olivine became the crust and the Iron melting defended the earth to become the core.
Explanation:
Earth was formed after it has went through a molten stage that led to the heavy materials sure as Iron metal moving inward to form the core, and the light materials moves toward the surface to form the crust.
The heat for the melting came from meteorite impacts which is usually very hot, the moon's impact, and the decay of radioactive elements.
Geological activity on the earth is driven from this initial source of heat at the earth's formation until now.
Viruses cause disease by destroying cells and by disrupting the body's normal homeostasis. A virus can be fast-acting, such as the virus that causes the , or may belong to the group of viruses called retroviruses , which includes the virus that causes .
Answer:
The correct answer is -
The fast-acting virus causes: Meningitis
The slow-acting virus causes: AIDS (HIV)
Explanation:
A microorganism that can replicate inside a host cell and able to disrupt the homeostasis and leads to the killing or death of the cell. A virus can be either a fast-acting or slow-acting virus.
Meningitis is one of the fast-acting virus so fast that can result in the death of the person within 24 hours if not get proper medical assistance. Whereas retroviruses, a group of viruses that is slow-acting and grouped on the basis of their structure and replication method, the major disease that is caused by these viruses is AIDS by a retrovirus called HIV.
Answer:
Viruses cause disease by destroying (cells) and by disrupting the body's normal homeostasis. A virus can be fast-acting, such as the virus that causes the (common cold), or may belong to the group of viruses called (retroviruses) , which includes the virus that causes (influenza).
Which of the following is true:
- Since the active site has a specific shape it can only fit one substrate.
- The active site can fit any type of substrate.
- Nothing can fit or bond with the active site of an enzyme.
Answer: Since the active site has a specific shape it can only fit one substrate.
Explanation: I took one for the team on Ed puzzle.
Since the active site has a specific shape it can only fit one substrate. The correct option is A.
What is active site of enzyme?The active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction in biology and biochemistry.
The active site is made up of amino acid residues that form temporary bonds with the substrate (binding site) and residues that catalyze the substrate's reaction (catalytic site).
The active site of an enzyme is the specific region of the enzyme where a substrate binds and catalysis or chemical reaction occurs.
It is a protein structural element that determines whether the protein is functional when subjected to an enzyme reaction.
A holoenzyme is a fully active enzyme that is made up of a protein portion (apoenzyme) and a cofactor.
Thus, the correct option is A.
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Using the image below identify each structure by matching the diagram label with the name of the organelle.
Cytoplasm
Nuclear Pores
Chromatin
Rough Endoplasmic Reticulum
Cell Membrane
Golgi Body
Nuclear Envelope
Cell Wall
Smooth Endoplasmic Reticulum
Nucleus
Mitochondria
Chloroplast
Vacuole
Microtubule
Nucleolus
Ribosome
1.
Structure 1
2.
Structure 2
3.
Structure 3
4.
Structure 4
5.
Structure 5
6.
Structure 6
7.
Structure 7
8.
Structure 8
9.
Structure 9
10.
Structure 10
11.
Structure 11
12.
Structure 12
13.
Structure 13
14.
Structure 14
15.
Structure 15
16.
Structure 16
Answer:
aa
Explanation:
hope heelpes sal
Cytoplasm contains the cytosol, microfilaments and other support structures in the cytoskeleton; it holds parts of the cell together.
What is cell wall?Cell wall is the rigid outer layer of the cell; this forms a protective wall made mostly of cellulose, a structural carbohydrate. It maintains the shape of the cell by preventing water loss. Vacuole a phospholipid membrane bound organelle plays a structural role in the cell; supports the cell membrane by exerting turgor pressure.
Arranged in a phospholipid bilayer, the cell membrane is semi-permeable; allowing entry into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds.
The hydrophilic heads of the bilayer are attracted to water while their water-repellent hydrophobic tails face towards each other- allowing molecules of water and hydrophilic molecules to move across the membrane along the concentration gradient.
Therefore, Some organelles are bound by membranes like those that make up the external structure of the cell, with varying compositions of phospholipids and proteins.
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how are proteins made in animals and humans
Answer:
Through protein synthesis of course...
Explanation:
DNA and RNA do many steps such as translation, transcription, and more to form protein codons and code them into amino acids. Then, thousands of amino acids are oined together to make proteins, which regulate body function and catalyze chemical reactions (enzymes). Ribosomes are also involved in this action. To make proteins, nitrogen is needed for the plant to use, and that comes mainly from nitrate ions in the soil, and gets into the plant by active transport.
Fill in the blank.
Living things get energy directly from the sun by _______ or indirectly by _______.
Fill in the blank.
Living things get energy directly from the sun by ___photosynthesis____ or indirectly by ____i dont know___.
Cholesterol is synthesized by all animal cells and is an essential structural component of animal cell membranes. Cholesterol is the most common steroid and is mainly synthesized in the liver. Cholesterol also serves as a precursor for several important biological compounds including all, EXCEPT: A) insulin B) vitamin D C) bile salts D) testosterone
the answer is insulin. because the precursor for insulin is called pro insulin
Cholesterol does not serve as the precursor for insulin. So the correct option is A.
What is cholesterol?Cholesterol is a wax-like substance. Cholesterol is considered to be bad among the general public but it is not inherently “bad.” Our body needs for building cells and making vitamins and several other hormones. Cholesterol levels, in excess, can pose a problem.
Cholesterol can come from two sources. These are synthesized by the liver and from foods from animals. The liver produces all the required cholesterol but the remainder is obtained from foods. For example, meat, poultry, and dairy products of them contain dietary cholesterol.
These are the same foods that are also high in saturated fats and trans fats. These fats cause the liver to make more cholesterol than required or more than it normally does. This added production of cholesterol, for some people, means they go from a normal level of cholesterol level to unhealthy level of cholesterol.
Therefore the correct option is A.
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Please help me quickly please!! ✨
Answer:
its from top to bottom trust me
Explanation:
Jordan needs to repeat the experiment, but his teacher says that he needs to improve his design. In his second experiment, what should he do differently?
the food prevented from leaving the stomach by a _________
Answer:
valve
Explanation:
Answer:
Valve!
Explanation:
A “valve” called the lower esophageal sphincter (LES) is located just before the opening to the stomach. This valve opens to let food pass into the stomach from the esophagus and it prevents food from moving back up into the esophagus from the stomach.
A consequence of "yo-yo" dieting is that
A. the body will actually store more fat around the waist.
B. a person will develop allergies to certain foods.
cholesterol levels will increase.
D. the chances of developing diabetes will increase.
Answer:
It's ( A )
The body will actually store more fat around the waist.
7. What is the water vapor concentration at the tropopause?
Answer:
99 %
The troposphere contains 99 % of the water vapor in the atmosphere. Water vapor concentrations vary with latitude. They are greatest above the tropics, where they may be as high as 3 %, and decrease toward the polar regions.
Explanation:
hope this helps <3
What describes G and why they face the watery inside and outside of the cell
Answer:
Because they are hydrophilic
Explanation:
The cell membrane is made up of a phospholipid bilayer. The phospholipid bilayer is made up of an arrangement of phosphate heads, which are (attracted to water) hydrophilic, and fatty acid tails, which are hydrophobic. (repelled by water).
Because they are attracted to water, the phosphate heads face the outside of the cell, where the water is
Write a summary of the digestive system. Include the organs of the system and tell if physical or chemical change or both take place in each organ.
What causes sea floor to spread apart at mid ocean ridges?
Answer:
Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor.
In one plant species petal color follows INCOMPLETE DOMINANCE. If there
are alleles for both red and white plants, what would a heterozygous plant's
phenotype be?
Red
Pink
White
Red and White
Answer:
Pink
Explanation:
Incomplete dominance is when one allele is not entirely dominant over the other. The resulting phenotype of the heterozygote is intermediate between the two alleles. That means the flowers would be pink.
Red - no, this would be true if red was dominant to white
Pink - yes, this is an intermediate phenotype
White - no, this would be true if white was dominant over red.
Red and White - no, this would be true if the alleles were co-dominant and both equally but independently expressed.
Energy is released from ATP when a phosphate group is removed.
true or false?
Yes! True!
[From nature.com] "When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP). Likewise, energy is also released when a phosphate is removed from ADP to form adenosine monophosphate (AMP)."
Answer:
true bro trust me
Explanation:
~PLEASE HELP ME~
The warming of the atmosphere by the trapping of heat being radiated to space is called
a)condensation
b)evaporation
c)the greenhouse effect
d)radiation
Answer:
The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere. Solar energy absorbed at Earth's surface is radiated back into the atmosphere as heat. As the heat makes its way through the atmosphere and back out to space, greenhouse gases absorb much of it.
Consider this animal cell.
The organelles in an animal cell are labeled. Part G is a bean-shaped structure with folding inside.
Which organelles are labeled G?
Answer:
Its Mitochondria
Explanation:
Which of the following best describes the product of DNA transcription
Its an RNA molecule I took the test in the 9th grade
1. Inferring This activity incorporates information from Chapters 12
and 13. How are these two chapters related?
what causes typhoid in human
Answer:
if the person has been infected from typhoid he she must be in contamination of dirty polluted water and food
what is an example of a question someone might ask to start a descriptive investigation?
Explanation:
where were you last night and what we're you wearing
The packaging and distribution center of the cell is the
Group of answer choices
central vacuole.
nucleus.
nuclear envelope.
Golgi apparatus.
Answer: The Golgi Apparatus
The Golgi apparatus is a set of flattened, membrane-bound sacs that serve as the packaging and distribution center of the cell.
Explanation:
The packaging and distribution center of the cell is the function of the golgi apparatus. Golgi apparatus prepares proteins and lipids in cell. Thus, the correct option is D.
What is Golgi apparatus?Golgi body is also known as a Golgi apparatus. It is a cell organelle which helps in processing and packaging of proteins and lipid molecules, especially the proteins that are destined to be exported out from the cell.
Stack of small flat sacs formed by membranes inside the cell's cytoplasm. Golgi apparatus prepares proteins and lipids for the use inside and outside of the cell.
Therefore, the correct option is D.
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A species is a particular type of living thing that can reproduce by interbreeding among themselves.
True False
Answer: True
Explanation:
Macy always thought there were only a few hair colors: blond, brown, and black. However, when she actually began looking around, she saw varying shades of these hair colors. What is possible reason for so many different hair colors?
polygenic inheritance
HELP HELP!!! ASAAAAPPPPP
Answer:
a is your answer
Explanation:
What are three possible long-term consequences of two species occupying the same niche?
Answer:
one will become extinctone/both will adaptone will migrate to a new locationExplanation:
An ecological niche is the role species has in its environment. This includes how it survives, reproduces, finds shelter, and obtains good. It includes all its interactions with both biotic (living) and abiotic (non-living) factors.
When species occupy the same niche, it means they are competing for the same resources. This is not sustainable. Eventually, one of three things are likely to happen:
one species will die out (become extinct) because they are being outcompeted by the more successful species, and will struggle to survive without adequate food and sheltereither one or both species will have to adapt to occupy another similar niche by, for example, exploiting a new food source in the area.either one or both species will have to migrate to a new area to occupy a different geographical area and new resources.The species that is being excluded from the niche can either adapt in the long term to occupy another similar niche, migrate to a new area, or it can die out.
Answer: The species that is being excluded from the niche can either adapt in the long term to occupy another similar niche, migrate to a new area, or it can die out.
Explanation: hope it helps ^w^
Find the number of atoms of each element.
Ca(OH2)3
Ca:
0:
H:
please!!!
Explanation:
Calcium Hydroxide has three atoms 5 atoms in each molecule.
One calcium atom
Two oxygen atoms
Two hydrogen atoms
So total 5NA. present in NA molecules.......
When stomata are closed during hot weather, Oxygen combines with RuBP and a wasteful process occurs, known as:
a. photo phosphorylation
b. photo transpiration
c. photochemical
d. photorespiration
Answer:
Photorespiration
Explanation:
30 living things name
Answer:
Here is a list of living things:
HumansGorillasApesMonkeysGiraffesPigsHedgehogsCowsHorsesSheepGoatLambDuckHummingbirdOstrichCockroachCicadaCentipedeKatydidElephantTapirRhinocerosHippopotamusTigerSquirrelSilverfishOctopusSharkWhaleDolphinHope this helps!
Animals:dogs,cats,tigers,sharks,human beings,cows,lions,rabbits,fish,eagles
Plants:mangoes, apples,oranges,bananas,grapes,coconut,lime,peach,pear,
Birds:owl,dove,goose,turkey,raven,parrot,ostrich,hawk,eagle,pigeon,robin