Answer:
Where's the map?
Explanation:
What are the two arms of chromosome called?
a. Centromere
b. Chromatid
c. Nucleotides
d. Histones
please help i will give brainliest
Answer:
Mark Brainliest
Explanation:
Trap NestSaltStarter MashInternetPneumoniaPeiits GoatsChicken CoopPlankTonsFertilizerlow does natural selection lead to the evolution of a population?
Explanation:
when natural selection is cartried out it leads to the species being the fittest inorder words it is called survival of the fittest inorder to promote evolution
if mammalian cells receive a go-ahead signal at the g1 checkpoint, they will:
If mammalian cells receive a go-ahead signal at the G1 checkpoint, they will complete the cell cycle and divide normally.
What is the Cell Cycle?The cell cycle may be defined as the entire sequence of events happening from the end of one nuclear division to the beginning of the next nuclear division.
There are three major checkpoints in the cell cycle. One at the end of the G1 phase, the second at the end of the G2 phase, and while third is during the M phase.
Therefore, if mammalian cells receive a go-ahead signal at the G1 checkpoint, they will complete the cell cycle and divide normally.
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The following list of events happens during meiosis:
Prophase I: Crossing over between homologous chromosomes occurs.
Metaphase I: Tetrads line up at the metaphase plate.
Anaphase I: Tetrads are separated.
Telophase I: Nuclear envelopes reform around the separated chromosomes.
Prophase II: Chromosomes condense.
Metaphase II: Chromosomes line up at metaphase plate.
Anaphase II: Sister chromatids separate into daughter chromosomes.
Telophase II: Nuclear envelopes reform around the daughter chromosomes.
Identify the answer choice that correctly lists the events from above that lead to new genetic combinations in the gametes.
(1 point)
1 and 2
1, 2, and 5
5 and 6
5, 6, and 7
Meiosis is a form of cell division that occurs in the sex chromosomes. This form of division ensures genetic diversity and also allow for the chromosome set to be halved.
The events from above that lead to new genetic combinations in the gametes include:
Prophase I: Crossing over between homologous chromosomes occurs.
Metaphase I: Tetrads line up at the metaphase plate
(1 and 2) option a.
During meiosis, possibilities of new genetic combinations occurs which allows for variations to exist between the offspring and parents. These ensures that offspring are not entirely identical to the parents and also allow for survival and other benefits.Learn more about genetic combinations: https://brainly.com/question/8418041
Identify the organelles in the cell to the right.
А
חד
F
В.
А
B
С
с
C
D
E
F
E
DONE
D
plant cell
Answer:
A- Vacuole
B- Chloroplast
C- Cell membrane
D- Golgi bodies
E- Smooth and rough endoplasmic reticulum
F- Cell wall
Explanation:
This is a structure of a plant cell which unlike animal cell has a cell wall as well as plasma membrane. It also contains large vacuoles present in the center of the cell. The green color of the plants is due to the presence of chlorophyll which is present in an organelles called chloroplast.
Organelles which are labelled in the cell are
A:Cell membrane
B:Vacuole
C:Nucleus
D:Cytoplasm
E:Chloroplast
F:Cell wall
The given figure represents a plant cell. So, the correct option is C.
What is Plant cell?Plant cells are defined as eukaryotic cells that contain a true nucleus as well as specialized structures known as organelles that perform certain specialized functions. Plant and animal cells both contain a nucleus with similar organelles but plant cells differ due to the presence of a cell wall outside the cell membrane.
In the given figure, labelled organelles function are as follows:
Vacuole stores food, extra water, and waste while cell membrane permits selective passage of things into and out of the cell. The cell's nucleus serves as the activity's control centre, while the cytoplasm is the fluid that gives the cell its jelly-like consistency. Chloroplasts contain a substance called chlorophyll that is a green pigment that aids in photosynthesis. The cell wall of a plant gives it form, stiffness, strength, and protection.
Thus, the given figure represents a plant cell. So, the correct option is C.
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Your question is incomplete, most probably the complete question is:
Identify the organelles in the cell to the right and label the parts A, B, C, D, E and F.
A.
A:Cell membrane
B:Vacuole
C:Nucleus
D:Chloroplast
E:Cytoplasm
F:Cell wall
B
A:Cell membrane
B:Vacuole
C:Nucleus
D:Cytoplasm
E:Chloroplast
F:Cell wall
C
A:Cell membrane
B:Nucleus
C:Cytoplasm
D:Vacuole
E:Chloroplast
F:Cell wall
D
A:Cell wall
B:Cell membrane
C:Nucleus
D:Cytoplasm
E:Chloroplast
F:Vacuole
Helpppoo please no filessss
Answer:
i can’t see the answer choices
Explanation:
What happens to the peak wavelength in the blackbody spectrum as the temperature of a star increases?
A. The peak wavelength decreases.
B. The peak wavelength increases.
C. The peak wavelength doesn't change.
D. The peak wavelength decreases and then increases
Answer:
D
Explanation: the peak wavelength in the blackbody decreases
A place where animals and plants are protected is called
A) an ecosystem
B) a refuge
C) a sanctuary
D) both B and C
Hello! can someone help me w this pls
The mutation shown in the sequence below can be categorized as which type?
Original DNA sequence:
A T A C G G T A G C A A
T A T G C C A T C G T T
Mutated DNA sequence:
A T C G G T A G C A A
T A G C C A T C G A A(1 point)
insertion mutation
deletion mutation
chromosomal mutation
substitution mutation
Answer:
Deletion
Explanation:
because one base is deleted.
The mutation from A T A C G G T A G C A A to A T C G G T A G C A A is a deletion mutation.
MUTATION:Mutation is referred to as any change in the nucleotide sequence of DNA molecule. Mutation can be of different types namely: deletion mutation, substitution, insertion mutation etc. Deletion mutation is a kind of mutation that involves the removal of one or more nucleotide base from the DNA sequence. According to this question, an original sequence is given as: A T A C G G T A G C A A, mutation occurs and results in the following sequence: A T C G G T A G C A A. Nucleotide base "A" was removed from this sequence, hence, it is an example of deletion mutation.Learn more about deletion mutation at: https://brainly.com/question/6477597?referrer=searchResults
What are villi?
don't spam
Answer:
Villi are finger-like outgrowths on the inner walls of the small intestine. The villi increase the surface area for absorption of the digested food.
Answer:
Villi are tiny finger-like projections seen in the small intestine. They are more than millions of villi in the small intestine performing the following functions: The villi absorb nutrients from the food and cause their conversion into glucose.
where does sperm production occur within the testis?
Answer:
seminiferous tubules
Explanation:
Sperm production happens in coiled structures known as seminiferous tubules.
Why is it important that mitosis occurs like this
Answer: The cell divides upon these processes during a process known as mitosis. In mitosis, two daughter cells are formed. It is important that each of the daughter cells contain genetic information that is identical to that of the mother cell, as well as that there be no mutations. Mitosis is Important for three main things:
> Growth
> Repair
> Reproduction
hope it helps.
To be honest i didn't get your question but i gave the basic info for Mitosis
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Explanation:
Some researchers argue that the robust australopiths should be classified in a separate genus. What is that genus called
Answer: Researchers argue that robust Australopithecines should be classified in a separate genus called Paranthropus.
Explanation: The "robust" australopiths are a group of fossil hominins that existed in East and southern Africa between approximately 2.5 and 1.4 million years ago (Ma). They are referred to here as members of the genus Paranthropus, though considerable disagreement about their proper taxonomy persists. (credit to the internet)
Toll-like receptors are eukaryotic membrane proteins that bind with bacterial surface molecules and: ____________
a. cause the cell to phagocytize the bacteria.
b. activate the complement cascade.
c. cause the release of antibiotics to kill the bacteria.
d. form channels through which bacterial proteins can enter the eukaryotic cell.
e. cause the release of cytokines that trigger host defenses against the bacteria.
Answer:
release cytokines that trigger host defenses against the bacteria
Explanation:
a section of a dna molecule that controls the thumb is called a
Answer:
gene
Explanation:
What does the type of animals and plants brought to the New World demonstrate about the needs of Pre-Columbian civilizations
Answer:
The answer would be D because Pre-Columbian civilizations didn't have any domesticated animals such as cows, chickens, and horses. This fact limited the accessibility to meat for the Pre-Columbian civilizations.Explanation:
Which two atoms form an ionic bond?
A.sodium and bromine
B. two sodium atoms
C. two oxygen atoms
D fluorine and chlorine
Answer:
sodium and bromine
Explanation:
The one valence electron from sodium would be transferred to the bromine atom so they can both have an octet.
Which two atoms form an ionic bond?
Answer : A
Explanation : Ionic bond is a type of chemical bond and binds the chemical molecules together. Ionic bond is formed by the transfer of electrons from an electropositive element ( metal) to the electronegative element (non metal).
Sodium is an electropositive element and contains one positive charge. Bromine is an electronegative element with a single negative charge over it. Sodium gives the electron to bromine and results in the formation of ionic bond.
Thus, the correct answer is option (C).
Hope this helps you!
Which part of the vascular system functions as a blood reservoir and contains over 60% of the body's blood
Answer:
Veins are also called capacitance vessels because they contain 60% of the body's blood volume.
Explanation:
Hope I could help.
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Out in the distance you see
rele existente entre o modo verta do como Loonie na propaganda o trecho que revela a tras de cor Por que algumas partes do dos foram grafadas com as palavra do circunstancia OS orgbos tonponsáveis pela publicação anuncio publicat 10 Qual o tipo discursivo predominante do texto?
Answer:
what??speak English please
Explanation:
i don't really understand
I'm sorry I'm really sorry plss
forgive me
Which plate is the Eurasian plate?
A. D
B. C
C. B
D. A
wha molecules absorbs sunlight for photosynthesis
Explanation:
The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas.
What are c3, c4, and cam plants?.
How does humus help in plant growth?
Explanation:
Humus gives the soil the ability to absorb and retain moisture. Such soils do not dry out and require significantly less irrigation. Humus provides a reservoir for the plant nutrients available in the soil for balanced plant growth.
Answer:
Humus gives the soil the ability to absorb and retain moisture. Such soils do not dry out and require significantly less irrigation. Humus provides a reservoir for the plant nutrients available in the soil for balanced plant growth.
do liver cells undergo meiosis?
Answer:
In liver development, most Mono hepatocytes undergo the conventional cell cycle to replicate. However, some of them undergo mitosis without cytokinesis to produce Bi hepatocytes.
Explanation:
5 A prokaryotic cell is 5.0 um in length. A virus particle is 300 nm in length. How many times larger is the prokaryotic cell compared to the virus particle?
A 2
B 17
C 60
D 167
The prokaryotic cell is 17 times larger as compared to the virus particle.
Both values first need to be converted to the same unit.
5.0 um = 5.0 x [tex]10^-^6[/tex] m
300 nm = 3.0 x [tex]10^-^7[/tex] m
Dividing both values:
5.0 x [tex]10^-^6[/tex] m/3.0 x [tex]10^-^7[/tex] m
= 16.667
Hence, the prokaryotic cell is approximately 17 times bigger than the virus particle.
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What is a fishing bed
distinguish between uric acid, urea and ammonia
Answer:
Explanation:
Ammonia is associated with aquatic animals; urea is associated with most terrestrial and semiterrestrial vertebrates, but rarely land invertebrates (Campbell et al., 1972); and uric acid is the major product of terrestrial invertebrates, birds and reptiles (Prosser & Brown, 1961).
Explain how pollution from one location
can affect the environment far away from the
source of the pollution
Answer:
Air quality is affected by natural processes. Wind can move pollutants from their source to far-away locations. It can still spread and harm living creatures and destroy their environments.
Explanation:
Air quality is affected by natural processes where wind can carry pollutants to places far away from their source which can still spread and harm living beings and destroy their environments.
What is Pollution?Pollution is defined as the introduction of harmful materials into the environment where the harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash which can also be created by human activity, such as waste or runoff produced by factories. Pollutants harm the quality of air, water and land.
Many things produce pollution such as cars spewing pollutants from their exhaust pipes. Burning coal to generate electricity pollutes the air. Industries and homes generate waste and sewage that can pollute land and water. Pesticides which is chemical poisons used to kill weeds and insects which is seep into waterways and harm wildlife.
Thus, air quality is affected by natural processes where wind can carry pollutants to places far away from their source which can still spread and harm living beings and destroy their environments.
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