Answer:
Explanation:
DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!
Answer for number 2:
nucleus
1: Cellular location of eukaryotic and prokaryotic DNA: Eukaryotic DNA is stored in a nucleus, whereas prokaryotic DNA is in the cytoplasm in the form of a nucleoid.
Which systems work together to fight infection in the body?
When the net force of opposite forces is zero, the forces are
A)
not even
B)
unequal
C)
unbalanced
D)
balanced
Answer:
balanced
Explanation:
Answer:
D.) Balanced
Explanation:
if 2 forces push ir pull on an object in opposite directions, and the two forces cancel Each other exactly, the net force is zero
How might retaining too much heat be a disadvantage to an organism?
Excessively heat can damage the plasma membrane and disrupt subcellular structures such as membrane proteins and enzymes.
What are subcellular structures?The following are the primary subcellular structures found in animal cells: The nucleus is where genetic material is stored.
Cell membranes regulate what enters and exits the cell. Mitochondria: aerobic respiration site. Ribosomes are the sites where proteins are synthesized.
Protein denaturation occurs at high temperatures and affects protein folding, bonding, and other types of behavior.
Furthermore, membrane proteins play an important role in cell function regulation. If these are disrupted, the system will be unable to maintain homeostasis, or a stable internal environment.
Heat can damage the plasma membrane and disrupt subcellular structures like membrane proteins and enzymes.
Thus, this way, retaining too much heat can be a disadvantage to an organism.
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A motorcycle accelerates 3 m/s2 due to a force of 330 N. What is the mass of the motorcycle? Mass of motorcycle = _____ kg
Answer:
110 kg
Explanation:
Given
Acceleration (a) = 3m/s²
Force (F) = 330N
Required
Determine the mass of the motorcycle
This question is an illustration of Newton's second law and will be solved using:
Force = Mass * Acceleration
F = m * a
This above implies that force applied on the motorcycle is a product of its mass and its acceleration
Substitute values for F, and a
330N = Mass * 3m/s²
Make Mass the subject
Mass = 330N/3m/s²
Mass = 110kg
Hence, the calculated mass of the motorcycle is 110kg
Answer:
110
Explanation:
En un experimento un floricultor cruzó plantas de flores púrpuras con plantas de flores blancas, los resultados obtenidos durante la primera generación fueron de un 100% de flores púrpuras, y en la segunda generación un 25% de flores serán de color blanco y el resto de color púrpura. Los genotipos de los parentales (P)
Answer:
Los genotipos de los parentales son:
- pp (homicigota dominate con flores púrpura)
- bb (homocigota recesivo con flores blancas)
Explanation:
Alelos:
p: púrpura y b: blanco
Genotipos parentales:
- pp: homocigota dominante (flores púrpura)
- bb: homocigota recesivo (flores blanca)
Cruzamiento parental: pp X bb
F1: 100% pb
Cruzamiento F1: pb X pb
F2: 25% pp (flores púrpuras), 50% pb (flores púrpuras) y 25% bb (flores blancas)
En este caso, el alelo que determina el color púrpura es dominante sobre el alelo que determina el color blanco. Es por esta razón que en la F1 todas las plantas heterocigotas exhiben un fenotipo con flores púrpura. En la F2 la proporción fenotípica será 1:2:1 (1 homocigota dominante, 2 heterocigotas y 1 homocigota recesivo), mientras que la proporción genotípica será 3:1 (3 plantas con flores púrpuras y 1 planta con flores blanca).
If an individual has the genotype Bb, what alleles can it pass on to its
offspring?
A. Only B
B. Neither B norb
C. Either B or b
D. Only b
If a person possesses the genotype Bb, either the B or the b alleles can be passed on to their progeny. So, the correct option is C.
What is Genotype?An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual carries inside a specific gene or genetic region are also referred to as the genotype.
The term "genotype" relates to an organism's whole gene pool, or, in other words, the genetic make-up of that creature. The phrase can also be used to describe to the alleles, or different forms of a gene, that an organism carries in a more specific meaning. Symbols can be used to symbolise it. For illustration, BB, Bb, and bb could be used to denote a certain gene variant.
If a person has the genotype Bb, as in the example above, then either the B or the b alleles can indeed be passed on to their progeny.
Therefore, the correct option is C.
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please help idk what’s the answer
Answer:
first is the right answer
What is the purpose of crop rotation?
A) To have a variety of plants for harvest
B) To improve soil color
C) To improve soil fertility and structure
D) To increase biodiversity
E) To loosen the soil for burrowing animals
Please select the best answer from the choices provided
A
B
Answer:
C) To improve soil fertility and structure
Explanation:
Crop rotation, the practice of planting different crops on the same land, improves soil health and boosts nutrients within the soil.
Which is the role of the gall blabber
In periods of hot, dry weather, the small pores (holes) on the surface of leaves of most plants will close in order to reduce water loss. When these pores are closed, carbon dioxide is restricted from entering the leaf. As a result, what product will also decrease? a. Cellular respiratory b. Water c. Glucose d. Carbon dioxide
explain why glycogen makes a good storage molecule
Answer:
Glycogen is insoluble due to the fact it is such a large molecule.
Explanation:
These extra branches mean the stored glucose can be released very quickly - something that is very important. also found in animals.
how might a karyotype used unethically
karyotype can be used unethically by-
Racially using human Karyotype to characterize race.by setting some parameters that is not legal when using karyotype base on certain factors by companies.The selection of Human based on aesthetics such as skin colour etc.The selection of Human because of only their gender.The use karotyping for extortion or gains obtained from people.Karyotyping is simply known as the process where the photographs of chromosomes are taken in order to known the chromosome complement of an individual, including the number of chromosomes and if an abnormalities exist.
Conclusively, Karyotyping is often used for the complete set of chromosomes in a species and also for a test that measures the number of Chromosomes.
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how does newtons law of universal gravitation apply to earth and the moon
Where do you think the oxygen that
we breath in comes from?
Answer:
plants
Explanation:
all green life gives us oxygen, and in turn we give c02 or carbon dioxide
1. results in no motion of the object because forces are equal and in opposite directions
A. blanced forces
B. Unblanced forces
Answer:
Balanced Forces
Explanation:
When the forces acting on an object have equal strength and act in opposite directions, they are balanced.When the forces acting on an object are unbalanced, they do not cancel out one another.
Homeostasis is maintained by which of the following organ systems in humans?
A. Multiple organ systems working together
B. The muscular system
C. The endocrine system
D. The nervous system
A. Multiple organ systems working together
Explanation:
All of the organ systems work together to maintain homeostasis in humans because each system does something different. For example, the circulatory system delivers oxygen rich blood to the bones and the bones create new blood cells. When one thing is wrong with one system, it affects all of the systems, like a disease. Another example of this would be the central nervous systems and endocrine working together to coordinate messages to the brain about the body's state while resting and exercising to maintain homeostasis.
Hi i need help with this Punnet square table , please help if you can!!!
Answer:
Explanation:
We need to know the parents eye color but I can still kind of answer the question
Answer:
you will have a 1/4 chance to get brown eyes and a 3/4 chance of having blue eyes
Explanation:
What is thermal energy? Why do we need it?
Answer:
Thermal energy is basically heat and we need it because without heat we would not have any warm feelings in our houses and stuff...
Explanation:
Answer:
Thermal energy is defined as a type of energy which is contained within a system which is responsible for temperature rise.
we need it because without heat we would not have any warm feelings.
Explanation:
What is the correct answer?
Answer:
It's either the 1st one or da 2nd one that all I know lol sry.
Explanation:
Why is the protein coding of most human genomes identical?
Answer:
On average, the protein-coding regions of the mouse and human genomes are 85 percent identical; some genes are 99 percent identical while others are only 60 percent identical. These regions are evolutionarily conserved because they are required for function.
Explanation:
Brainliest please?
What would be the calculated population density of diamondback rattlesnakes if there were 20 snakes
living in an area of desert that is 20 square kilometers?
A) 1 rattlesnake per square kilometer
B) 10 rattlesnakes per square kilometer
C) 40 rattlesnakes per square kilometer
D) 5 rattlesnakes per square kilometer
Answer:
Choice A
Explanation:
If there is 20 snakes living in an area of desert that is 20 square kilometers that means we should get how many snakes are in 1 km and that's only 1 because you would do 20/20.
What would happen if the sedimentary rock was exposed to energy from the sun and then millions of years later to energy from Earth’s interior?
Answer:
They would become igneous rocks
Explanation:
If originally, sedimentary rocks are exposed to energy from the sun, no changes will occur to them.
One will hardly spot any difference in their mineralogical composition as such.
The temperature of the sun does not any significant alteration on earth materials. The heat from the interior has a very significant effect on rocks, especially sedimentary rocks. Heat from the interior can reach a staggering 6000°C which is more than enough to cause a metamorphic change in a body rock. In fact, at this temperature, igneous rock will be produced from the sedimentary rock.Igneous rock will be produced from the sedimentary rock if the sedimentary rock was exposed to energy from Earth’s interior for millions of years.
The temperature of the sun does not make any significant changes on sedimentary rocks.
The heat from the interior has a very significant effect on sedimentary rocks.Heat from the interior can reach upto 6000°C which is able to cause a metamorphic change in a rock.Therefore, igneous rock will be produced from the sedimentary rock if the sedimentary rock was exposed to energy from Earth’s interior for millions of years.
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How does the chromosome number of daughter cells compare with the amount of chromosomes in parent cells?
Answer:
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
Explanation:
Mitosis is best described as:
O nuclear division that ensures each daughter cell has the same genes and chromosomes as the parent cell
O daughter cells that have the same chromosomes as the partent cells
O nuclear division that reults in meiosis and chromosomal equity
O nuclear dividion that results in daughter cells that have twice the number of chromosomes as the parent cells
O cell division where the daughter cells are the same as the parents cells
Answer:
A
Explanation:
the first one
Which best describes a codon?
a cell structure that gives the master instructions for an organism
a segment of DNA that is the basis of heredity in organisms
the sequence of three bases that codes for a specific amino acid
the basic unit of structure and function of all living things
Answer: the sequence of three bases that codes for a specific amino acid
Explanation: I took the test and i got this answer correct so i hoped this helped!!
Codons are generally a sequence of three bases in the DNA and RNA that codes for specific amino acids. So option C is correct.
What is a genetic code?A genetic code is a set of information that helps to convert the genetic information stored inside the genetic material into a defined sequence of amino acids called a protein.
Though the DNA has nucleotide sequences that contain information for producing the proteins, the DNA cannot directly synthesize the proteins. It is first converted to mRNA in order to be translated into a specific protein.
There are in total 64 codons, out of which 61 code for specific amino acids while the remaining three codons are known as stop codons and are used in terminating the process of translation of proteins.
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Identify what A and B are.
A- a Wiffle ball B-some messed up teeth - you should floss more...
A-nucleolus B-the process of translation has occurred and produced a strand of mRNA inside the nucleus. It is
now leaving the nucleus and is headed to start the process of transcription
A-nucleus, B-the process of transcription has occurred and produced a strand of mRNA inside the nucleus. It is
now leaving the nucleus and is headed to start the process of translation
A-transcription B-translation
Answer:
Answer b is the right one
how do photosynthesis and cellular respiration form a cycle?
Answer:
The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
Q35. (2pts) Describe how the antidote (treatment) helped Jared's cells make ATP (include the ETC and H+ gradient in your answer).
This is from gizmos if you know this pls help me out
Answer:
The antidote entered into Jared's cell and targeted the cyanide that was disrupting his Electron Transport Ch...
Explanation:
The antidote entered into Jared's cell and targeted the cyanide that was disrupting his Electron Transport Chain. The antidote changes the cyanide into a molecule called thiocyanate. Jared’s body can now remove this molecule through his excretory system. As the cyanide is removed, electrons can now leave the ETC by reacting with O2 to make water. His ETC can now get new electrons from NADH this then means he is able to move more H+ into the inter-membrane space. Jared’s cells can now make ATP again.
The antidote binds cyanide. This binding impedes cyanide to inhibit the cytochrome oxidase action. As the cytochrome reactivates, electron transport reactivates as well, and ATP is synthesized again.
---------------------------------------------------------------------
Ion cyanide inhibits cellular respiration by binding to the ferric ion of cytochrome oxidase and blocking the electron transference.
Because the electron transporter chain is interrupted, there is no ATP production, and muscles do not get enough energy.
The antidote enters Jared's cells and targets cyanide.
When the antidote meets cyanide, it binds to this last one and blocks its effect on cytochrome oxidase.
As cyanide can no longer bind the ferric ion of cytochrome oxidase, the enzyme remains active, and the electron transport is reactivated.
As electrons move along the chain, protons are pomped to the intermembrane space.
ATP production reactivates again as well because the proton gradient is used to produce ATP molecules.
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please identity each of these weed by their botanical names
Answer:
I cannot see it properly , can you take a better picture???
Explanation:
Answer:
neemgulmohartulsihope it helps
Do y’all know each of these ?
HELP PLEASE !!!
Answer:
5. inner membrane
Explanation:
Answer:
1 - rough endoplasmic reticulum
2 - the purple is chromatin and the red is the nucleolus
3 - mitochondria
5 - cytoplasm
11 - lysosomes
12 - ribosomes
Explanation:
I'm not sure about the rest of them and these are for if it is an animal cell. Hope this helps!