Answer:
Warm interglacial periods occur every 100 000 years. We are currently in an interglacial period. Has Earth spent more time in cold ice age periods or in mild interglacial periods over the past 400 000 years? Over the past 400 000 years, Earth has spent much more time in Ice ages.
Explanation:
An interglacial period (or alternatively interglacial, interglaciation) is a geological interval of warmer global average temperature lasting thousands of years that separates consecutive glacial periods within an ice age. The current Holocene interglacial began at the end of the Pleistocene, about 11,700 plz mark me BRAINLEST :)
5(a+4)-6a+1=12 plz help its due today
Answer:
a = 9
Explanation:
5(a + 4) - 6a + 1 = 12
5a + 20 - 6a + 1 = 12
5a - 6a + 20 + 1 = 12
-1a + 21 = 12
-21 -21
--------------------------------
-1a = -9
/-1 /-1
---------------------------------
a = 9
Answer:
a = 9
Explanation:
the steps are in the answer above me
what is the colour change when universal indicator is added to apple juice
Answer: The color would be light red
Explanation:
Apple juice is derived from apples which are rich in vitamin C. Chemically, vitamin C is an acid called ascorbic acid and apple juice also contain acids like folic acid and Pantothenic acid.
Hence, it is to be considered as acidic in nature.
So that, pH of apple juice is found to be in the range of 2.9 - 3.5.
Hence, the Colour of pH will be Light Red
rRNA is wrong!!!! plz help this is my LAST attempt
Which type of RNA functions to use coded instructions to assemble amino acids?
mRNA
rRNA
tRNA
Ribosomes
The type of RNA that functions as coded instructions to assemble amino acids would be messenger RNA. Option 1.
What is mRNA?The mRNA is an acronym for messenger ribonucleic acid. It is the RNA that is synthesized directly from the coding strand of DNA. The strand act as the template for the synthesis of mRNA.
The mRNA sequence, therefore, is complementary to the sequence of the coding strand of DNA. In other words, the mRNA contains the genetic instructions of DNA but in an encoded form. The genetic codes are then translated to the respective amino acids during translation.
The amino acids are linked together by peptide bonds to form the primary structure of proteins. These are then folded to arrive at specific secondary protein structures.
In summary the mRNA functions as coded instructions to assemble amino acids.
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Please help me! For Biology
Answer: c i think
Explanation:
what do a bacterium and a human being have in common?
Answer:
This means that the same codon "means" the same amino acid in all organisms. For example, in both humans and bacteria, a codon made of three thymine DNA-letters will code for an amino acid called Phenylalanine. ... This code is common to both humans and bacteria, and indeed, for most living things.
Explanation:
Ibigay ang Limang mga unang taong nagpalaganap ng pananampalataya.
Answer:
oy pinoy dito na sa us
Explanation:
haha
haha
bat ka nandito
Create a appropriate title for this data table
Answer:
grade per hours of study
smooth muscle tissue is usually controlled by the__ nervous system and we are not aware of it
A.)autonomic
B.)central
C.)somatic
D.) All of the above
Answer:
a autonomic system
Explanation:
a random change in allele frequencies over time is known as
Answer:
Genetic drift
Explanation:
Genetic drift describes random fluctuations in the numbers of gene variants in a population. Genetic drift takes place when the occurrence of variant forms of a gene, called alleles, increases and decreases by chance over time. These variations in the presence of alleles are measured as changes in allele frequencies.
A random change in allele frequencies over time is known as "genetic drift." Hence, due to this, the allelic frequencies alter in a population over time.
What is genetic drift?A genetic drift changes the gene pool of a particular population. It is significant in a small population. Many factors such as migration, birth, and death affect the genetic pool. Some new genes are added to the gene pool as a result of genetic drift, while others are permanently lost. Increases in one allelic frequency replace the other allele.
In a small population of 20 animals, black skin is dominant over white. 12 are homozygous for black skin, 5 are heterozygous for black skin, and 3 are recessive and show white skin. If any natural calamities happen that destroy the white animals, then this allele will disappear from the population. After many generations, only black-skinned individuals will appear.
Hence, a random change in allele frequencies over time is called "genetic drift."
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What seems to be the best way to get the 'puck (point charge)' into the goal More charges in the field
Answer:
We can find the electric field created by a point charge by using the equation E=kQr2 E = k Q r 2 .
Explanation:
The electric field of a point charge is, like any electric field, a vector field that represents the effect that the point charge has on other charges around it. If the charge is positive, field lines point radially away from it; if the charge is negative, field lines point radially towards it.
sarcomeres are functional units of ________ muscle.
Answer:
Should be skeletal muscles
Activity
To model how particles move as states of matter change, Jelani filled a clear box with as many marbles as the box would hold. Then he drew a picture of what the box looked like with the marbles in it.
Part A
Jelani covered the box and shook it. He could barely feel the marbles moving around the box. What state of matter does Jelani's box of marbles represent? Explain.
Answer:
It represent the solid state. In the solid state, the atoms or molecules that compound a substance have a very organized shape, as you can see in the pic, and also the solid state is the state that the particles have the minimum degree of freedom, and that explains why he barely feel the marbles moving when he shook it, it's because in the solid state the particles move less than in the liquid or gas state.
Answer:hey u there
Explanation:
HELP ME PLSS ILL GIVE U 25 POINTS!
1.When the right ventricle contracts, the valve between the upper and lower chambers is________ (open OR closed), What does this prevent?
2. Blood pumped out of the right ventricle goes (to the body OR to the lungs)
3. In the lungs, the blood gives up its (oxygen OR carbon dioxide) and picks up (oxygen OR carbon dioxide)
4. The bloodbe used by the cells.
(can OR cannot)
10. Where must the blood go before it can be sent to the entire body? ______
EZ POINTS!
Tell me your most INTERESTING fun facts obout frogs and toads! (pls give as many as you can! i love phrogs)
Answer:
Frogs and toads are carnivores. Frogs and toads don't have a neck.
Answer:
most frogs can jump 20x their heightadult frogs and toads are carnivores, but as tadpoles, they're herbivoreseach frog has a call that's unique to its speciesfrogs "drink" water through their skinsthe goliath frog is the largest living frog as of nowfrogs are everywhere in the world except Antarcticaa group of multiple frogs is called an armylots of poisonous frogs, such as the golden poison frog, are have bold colors to warn predators of their dangerous, toxic skinsthe marsupial frog keeps her eggs in a pouch just like a kangaroo. when the eggs hatch into tadpoles, the frog opens the pouch with her toes and then spills them into the waterExplanation:
I love frogs too; they're really cute.
what's the difference btw eurkyortic and prokyortic
[tex]EUKARYOTIC:[/tex] Cells with a nucleus
[tex]PROKARYOTIC:[/tex] Cells without a nucleus
[tex]EUKARYOTIC:[/tex] Cells with lysosomes and peroxisomes
[tex]PROKARYOTIC:[/tex] Cells without lysosomes and peroxisomes
[tex]EUKARYOTIC:[/tex] Cells with the endoplasmic reticulum
[tex]PROKARYOTIC:[/tex] Cells without the endoplasmic reticulum
Hope this helps! :)
Answer:
Prokaryotes : -
Type of Cell : Always unicellular Cell size : Ranges in size from 0.2 μm - 2.0 μm in diameter Cell wall Usually present; chemically complex in nature.Nucleus : Absent. Instead, they have a nucleoid region in the cell.Ribosomes : Present. Smaller in size and spherical in shape.DNA arrangement : Circular Mitochondria : Absent Cytoplasm : Present, but cell organelles are absent.Endoplasmic reticulum : Absent Example : Bacteria and ArchaeaEukaryotes : -
Type of Cell : Unicellular and multi-cellularCell size : Size ranges from 10 μm - 100 μm in diameterCell wall : When present, chemically simple in nature.Nucleus : PresentRibosomes : Present, Comparatively larger in size and linear in shape.DNA arrangement : LinearMitochondria : PresentCytoplasm : Present, cell organelles are present.Endoplasmic reticulum : PresentExample : Plant and Animal cellWhich types of currents are caused by wind on the Earth's surface? deep-water currents surface currents
Answer:
Deepwater currents.Explanation:
Land heats up faster during the day than water does. As the beach gets warm during the day, it heats the air above it. The warm air rises and cool air from the ocean is pulled in to
replace it. So, air flows from the ocean to the land. At night, the land cools faster than the ocean. What most likely happens to the air at the beach at night?
The air is still
The air moves along the coast
The air flows from the ocean to the land
The air flows from the land to the ocean. At night, the land cools faster than the ocean. What most likely happens to the air at the beach at night
Answer: I believe the ocean will be cool and the land will be cool so pretty much it will be more cooler at night than the day I hope this helps.
Explanation:
When a plant is not strong enough to support its own weight, what is most
likely the problem?
i need help please can anyone help?
Answer:
Golgi
Explanation:
It's probably too late, but here is an answer. Think of the Golgi as the warehouse that makes the final changes and ships things out of the cell.
what part of the outer ear transmits sound by vibrating
The part of the outer ear that transmits sound by vibrating is the eardrum, also known as the tympanic membrane.
What is eardrum?Eardrum is the thin, circular eardrum is the thing that divides the inner ear from the outer ear.
The eardrum vibrates as a result of sound waves entering the ear canal and changing air pressure.
The middle ear is the place at which the eardrum vibrations are amplified and transported via the ossicles to reach the inner ear i.e., the three tiny bones called the malleus, incus, and stapes.
The cochlea, which is located in the inner ear, is in charge of turning these sound vibrations into neural impulses that the brain can comprehend.
Thus, the eardrum, sometimes referred to as the tympanic membrane, is the component of the outer ear that vibrates to transfer sound.
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During the rainy season, rivers may overflow their banks, flooding the area and causing great damage. What is one thing people can do to help reduce the impact of flooding and subsequent erosion?
A number of different methods can be used to prevent the damage caused by flooding including vegetation to retain excess water, terrace slopes to reduce the slope flow, and building dams, reservoirs or holding tanks to store extra water during flood.
What is Flood?Floods caused due to overflow of river due to excessive rainfall causes river to exceed its capacity. Floodwater can also alter the landscape, by riverbanks and causing them to collapse. As floodwater carries materials from the soil, it suspends the sediment in the water, which will degrade the water quality and hence lead to harmful blooms of algae
The flooding of a river is an example of unsteady and non-uniform flow of water. There are many different types of flow includes steady flow in which the fluid characteristics like velocity (V), pressure (P), density (ρ), etc. at a point do not change with time.
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what came first chicken or egg
i need a explanation
Answer:
Eggs certainly came before chickens, but chicken eggs did not—you can't have one without the other. However, if we absolutely had to pick a side, based on the evolutionary evidence, we're on Team Egg.29 Mar 2018
Explanation:
Back to our original question: with amniotic eggs showing up roughly 340 million or so years ago, and the first chickens evolving at around 58 thousand years ago at the earliest, it's a safe bet to say the egg came first. Eggs were around way before chickens even existed
Microscopes are important tools. But do you know the difference between there microscopes and when to use each type?
The compound light microscope combines the power of lenses and light to enlarge the subject being viewed.
The stereo microscope allows an object to be viewed three-dimensionally under the lenses.
Very small, live cells, like bacterial cells should be viewed using a scanning electron microscope.
The scanning electro microscope produces high-resolution, sharp, black and white 3D images.
If your task was to dissect the mouth parts of a grasshopper, you would use a compound light microscope to assist you.
Electron microscopes differ from light microscopes in that they produce an image of a specimen by using a beam of electrons rather than a beam of light.
Answer:
A scope built of two systems of lenses ... ==> Compound light microscope
The light compound microscope is composed by two groups of lenses. In the first one, the lens projects a real intermediate image which is enlarged and inverted to the focal plane of the eyepiece. In the second group, the eyepiece that behaves like a magnifying glass, gives an image of the intermediate image which is enlarged and inverted again.
Designed for studying cells and tiny slices... ==> Transmission electron microscope.
The transmission electron microscope is an electron microscope for viewing objects much smaller than cells.
The transmission electron microscope (TEM or TEM) uses a high-voltage electron beam emitted by an electron gun.
If sample preparation is longer and more demanding than for optical microscopy, the resolution offers an incomparable view of the structures. Transmission electron microscopy allows to visualize intracellular organelles, viruses, crystals ...
A microscope that has lower magnifying power .... ==> Stereoscope (dissecting microscope).
The stereomicroscope is a special type of magnifying glass, often called a binocular loupe.
It is a device intended primarily for observation at low magnification with lighting overhead. It allows especially stereoscopic perception, in relief, of small subjects.
The stereomicroscope should not be confused with a microscope equipped with a binocular head. The latter only provides two identical images, with a "flat" rendering.
A microscope which magnifies from magnification ranging from 20X to 30.000X... ==> Scanning electron microscope
Scanning electron microscopy (SEM) is an electron microscopy technique capable of producing high resolution images of the surface of a sample using the principle of electron-matter interactions.
This microscope consists of an electron beam scanning the surface of the sample to be analyzed which, in response, reemits certain particles. These particles are analyzed by different detectors that reconstruct a three-dimensional image of the surface.
What is the difference in the way the
body uses carbohydrates and lipids?
Answer:
The key difference between carbohydrates and lipids is that the carbohydrates are immediate energy sources in living organisms while the lipids act as a long-term energy resource and tend to be utilized at a slower rate. Carbohydrates and lipids are important nutrients in living organisms.
Explanation:
choos the correct latin or greek root
Answer:
mon
Explanation:
have a great day
if wrong sorry
Answer:
1. tele
Explanation:
tele- comes from Greek, where it has the meaning "far. '' It is attached to roots and sometimes words and means "reaching over a distance, carried out between two remote points
→ telecommute
/ˌtɛlɪkəˈmjuːt/
verb
work from home, making use of the internet, email, and the telephone.
because of Snow Storm
if a parent cell has 6 chromosomes, how many chromosomes will be in each daughter cell after mitosis and cytokinesis?
Answer:
At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes. At the end of meiosis II, each cell (i.e., gamete) would have half the original number of chromosomes, that is, 15 chromosomes.
Since parents cells have 6 chromosomes per cell, DNA replication will lead to 12 chromosomes and mitosis will divide this cell into two daughter cells with 6 chromosomes each.
What is mitosis?
Mitosis is a procedure where a single cell splits into two equal daughter cells (cell division). During mitosis, one cell divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn-out cells.
Thus, 12 chromosomes and mitosis will divide this cell into two daughter cells with 6 chromosomes each.
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Một gen có số lượng nuclêôtit loại G = 20% và có X = 600 nuclêôtit. Gen này có số liên kết hidro là
A. 3600 liên kết. B. 3000 liên kết. C. 1500 liên kết. D. 3900 liên kết.
what substance provides the energy for muscle contraction
Explanation:
The energy is derived from adenosine triphosphate (ATP) present in muscles. Muscles tend to contain only limited quantities of ATP.
How are interphase and mitosis similar processes?
Answer:
Interface: in this phase, the DNA is duplicated, thus beginning to form two cells that can be seen in the microscope with a dividing line or membrane between them. This phase is identical in both mitosis and meiosis. ... Later, the chromosomes start to sort and go to the center of the cell.
please give me a crown, thank you
Interfase: en esta fase, se duplica el ADN, empezando a formar así dos células que pueden contemplarse en el microscopio con una línea o membrana divisoria entre ellas. Esta fase es idéntica tanto en la mitosis como en la meiosis. ... Más tarde, los cromosomas empiezan a ordenarse y se dirigen al centro de la célula.
porfa vor dame coronita gracias
How does decoding DNA compare to reading music? In your own words 5-10 sentences.
Answer:
reading symbols or letters in a certain form,comparing information to figure out information