A diploid cell always contains two complete sets of chromosomes, which is described as 2n.
What is a diploid cell?Two complete sets of chromosomes are present in a diploid cell. The majority of human cells are diploid, with 23 chromosomal pairs totaling 46 chromosomes. This consists of a pair of sex chromosomes and 22 pairs of autosomes. The mother and father each contributed one copy of each pair of chromosomes to the individual.
Through the process of mitosis, diploid cells replicate and maintain the same number of chromosomes by making a copy of each chromosome and dividing their DNA equally among their daughter cells.
Blood cells, skin cells, and muscle cells are examples of diploid cells. These cells are called somatic cells. Different organisms have different numbers of chromosomes.
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(01.01 MC)
What is the difference between a hypothesis and a theory? (2 points)
Select one:
a. A hypothesis is a testable statement, and a theory is well-supported explanation.
b. A hypothesis is a theory that has been proven.
c. A hypothesis is a law of nature, and a theory is always true.
d. A hypothesis is an observation that can turn into a theory.
Answer:
im almost positive its a
Explanation:
its the only one that makes sense when comparing to the other answers :)
Answer:
A
Explanation:
A hypothesis is what is tested during an experiment while a theory is a phenomenon or outcome that is supported by a significant amount of data and evidence.
In four or five sentences, if you were to write a research proposal involving MS, what aspect of the disease would you target and why?
Answer:
It is a communication problem.
Explanation:
The aspect of Multiple sclerosis (MS) disease is the communication problem between brain and the rest of your body. In this disease, the body's immune system attacks on its own body tissues and the nerves that are responsible for the communication within the body adversely affected and causes communication problem. Vision problems, such as blurred vision and no vision are the main problems of this disorder.
( 10 points ) ( pls help brainliest also )
The pilomotor reflex is part of what larger process?
A. The hypothalamus
B. The fight-or-flight response
C. Positive feedback
D. Fluid homeostasis
HHRRTSEE rearrange this
Answer:
THRESHER
Explanation:
Which employees typically work in an office environment within schools? Check all that apply
Answer:
Personally I think that your answer is a School Psychologist, Instructional Designer, and Instructional Designer.
Explanation:
School psychologists have their own office within a school. Tutors typically are not inside the school and teachers have their classrooms.
The 1 _______ is the fluid component of blood?
Answer:
Plasma
Plasma is the fluid component of blood
Which Mendelian law of inheritance states that organisms inherit two
copies of each gene and donate one copy to each of their offspring?
law of genetic linkage
law of segregation
law of independent assortment
law of inheritance
Answer:
Law of segregation
Explanation:
Mendel's three laws of inheritance are:
law of dominancelaw of independent assortmentlaw of segregationThe law of segregation states that diploid organisms possess two alleles for each trait, and that only one of these alleles is passed on to their offspring. It is totally random which allele is passed on to the next generation.
The figure above represents a rough endoplasmic reticulum. Which of the following best describes the role of the structure labeled Y
Answer:
The figure is absent in this question, however, it can be answered based on general understanding of the structure of rough endoplasmic reticulum. The options are:
A) Structure Y contributes the raw materials required for the synthesis of proteins
B) Structure Y packages proteins for export from the cell
C) Structure Y is the location where proteins are synthesized
D) Structure Y contains enzymes that cut and bind proteins.
The answer is C.
Explanation:
The rough endoplasmic reticulum is one of the two types of the endoplasmic reticulum, which is a part of the endomembrane system found in eukaryotic cells. The rough endoplasmic reticulum is so named "rough" because of the structures attached to its surface.
The structures attached to the surface of the rough endoplasmic reticulum are the structures labelled Y in the figure of this question. Those structures are called RIBOSOMES and they are the site (organelles) of protein synthesis in living cells. Therefore, structure Y is the location where where proteins are synthesized.
Chemical formula for photosynthesis mitochondria
Answer:
Explanation:
Carbon dioxide + Water Glucose (sugar) + Oxygen CO2 + H2O C6H12O6 + 6O2 Cellular respiration or aerobic respiration is a series of chemical reactions which begin with the reactants of sugar in the presence of oxygen to produce carbon dioxide and water as waste products.
Which of the following best explains how the cell theory was developed?
Answer:
Around 1850, Virchow saw cells dividing and added that living cells arise only from other living cells. These ideas led to cell theory, which states that all organisms are made of cells, all life functions occur in cells, and all cells come from other cells.
Explanation:
What is the main difference between cell division in plants and animals?
Answer:
In Cytokinesis, the contractile ring in animal cells contracts and pinches the cell into 2 daughter cells. In plants, the phragmoplast extends and forms the cell wall. In plants, mitosis occurs only in the meristem tissues.
Explanation:
it is on Google just search
name of animals in Nigeria
Answer:
AardvarkGazelleWhite-throated guenonHyraxAnd some more!
I hope this helps!
The chemical formula for glucose, a simple sugar, is CH120g. When a glucose molecule is assembled during photosynthesis, the process takes up 12
hydrogen ions from the stroma of the chloroplast. What process adds 12 hydrogen ions to the chloroplast?
A 6 water molecules splitting apart during the light-dependent reactions
B
12 water molecules splitting apart during the light-dependent reactions
C 12 water molecubos splitting apart during the light-independent reactions
D. other sugar molecules reacting with oxygen in the chloroplast
Answer:
A, 6 water molecules splitting apart
Explanation:
I believe the energy from the sunlight is used to split the water. Then we are left with its electrons, hydrogen, and oxygen. Also, photosynthesis only uses 6H2O molecules, so A seems most logical.
Type the correct answer in the box.
What is the residence time for the average water molecule in the water tank?
A factory uses a water tank to cool one of its pieces of machinery. To keep the water cold, fresh water enters the tank at a rate of 4 kilograms per second. Water also flows out of the tank at the same rate. The tank holds 8,000 kilograms of water.
The residence time for the average water molecule in that water tank is________
seconds.
Answer:
2,000
Explanation:
4 kilograms will go in the tank in 1 second. So for 8,000 kilograms of water you divide 8,000 by 4. Which gives you 2,000. Got it right on Plato as well.
Answer:
A factory uses a water tank to cool one of its pieces of machinery. To keep the water cold, fresh water enters the tank at a rate of 4 kilograms per second. Water also flows out of the tank at the same rate. The tank holds 8,000 kilograms of water.
The residence time for the average water molecule in that water tank is
2000
seconds.
Explanation:
2000 is correct
where are the oldest epidermal cells found
Answer:
stratum basale
The oldest epidermal cells in the epidermis are found in the stratum basale.
Explanation:
hope the answer was helpful..
Hess expanded on Wegener’s theory of
.
Hess proposed the idea that
are places where crust is created
To part A the answer is continental drift :D to Part B the answer is Mid-ocean ridges :D Hope I was helpful
Answer: continental drift, mid-ocean ridges
Explanation:
The descriptive term for plants that are sturcturally adapted to withstand protracted dry conditions is ___________.
Answer:
Xerophytic
Explanation:
It is xerophytic and it is gotten from Greek word, Xeros( dry) and phutons(plants). It is an adaptive term that is use to describe plants species that posses structural adaptive features which make them to adapt and survive in areas where there is little water or dry region like desert, or area covered with ices by possessing some mechanism which help them to reduce water loss or concerns water. Examples include cactus, pineapple and some Gymnosperm plants. Some of these plants species posses extensive root system and their leaves are reduced to cacti which does not support water loss.
which organisms obtain energy from dead or decaying matter? Select two options
Pressure and depth share a linear relationship. For every _____ meters that the depth of seawater increases, the pressure increases by another atmosphere or bar.
A. 10
B. 25
C. 100
D. 1000
For every 10 meters that the depth of seawater increases, the pressure increases by another atmosphere or bar. So, the correct option is (A).
What is Pressure?Pressure is defined as the force that is exerted per unit area of an object perpendicular to the surface on which that force is distributed. Gauge pressure is the pressure relative to the ambient pressure. Several units are used to express pressure.
It can be expressed as:
[tex]P = \frac{F}{A}[/tex]
Where, P = pressure
F = force
A = area
In water, the greater the depth, the greater will be the pressure, so for every 10 m increase in depth, the water pressure increases by about 100 kilopascals (kPa). The SI unit of pressure is pascal (represented as Pa) which is equal to one newton per square metre [tex](N/m^2 ) or (kg m^-^1s^-^2).[/tex]
Thus, for every 10 meters that the depth of seawater increases, the pressure increases by another atmosphere or bar. So, the correct option is (A).
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What is not important to keep in mind when making observations about toddlers
Read the information for transcription and then answer the question.
Protein Synthesis
Explain the process of transcription
Answer:
Protein synthesis is the process which synthesizes proteins by the information coded in the DNA molecule with the help of two distinct process takes place in order namely transcription and translation.
Transcription is the first process of the central dogma or the protein synthesis that produces mRNA molecule that carries all the information stored in the DNA molecule out of the nucleus (in eukaryotes only) to the ribosome where the second process Translation takes place.
Untwists then unzips of DNA molecule is catalyzed by RNA polymerase result in the Hydrogen-bonds between the strands break .
Creates complementary base pairs with bases of the DNA strand with help of free RNA nucleotides
weak hydrogen bonds and sugar-phosphate bonds form between base pairs and RNA nucleotides respectively
mRNA strand is synthesized and peels off the DNA and transported or pass from the nucleus to cytoplasm
Answer:
Transcription converts
*DNA
*mRNA
*Nucleus
*Cell
in this order
Explanation:
Which of the following features was not necessary for adaptation by reptiles for life on land
Answer: being cold-blooded
Explanation:
The branch of science which deals with the study of a living being is called biology.
The options are missing in the question.
The species which crawls down in land is called reptiles. An example of reptiles species is a crocodile, snakes, and etc
As the option is missing, then, in my opinion, the feature that is not necessary for reptiles is the tympanic membrane, they do not listen.
Hence, the correct option is the tympanic membrane.
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i need help on this question im getting behind every second this is confusing i NEED ANSWERS please and thank you
Answer:
hiiiiiiiiiiiiiiiiii
Explanation:
add file
and then submit
Answer:
HOLY WATTAH
Explanation:
HOLY WATTAH WILL HELP U FIND DA ANSWER
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION THANK YOU!!
the answer is C, bc i said it is.
Importance of mitosis, two reasons and 300 words.
Answer: Mitosis is a way of making more cells that are genetically the same as the parent cell. It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged.
1. Development and growth
After meiosis has produced a gamete, and this has fused with another gamete to form an embryo, the embryo grows using mitosis. This growth continues throughout an organism’s life, in plants, animals, and fungi. In this way, the original chromosomal set is preserved.
2. Cell replacement
This occurs when the original cell is damaged or wounded. New cells are created to replace those that were damaged. Examples of this are the healing of a cut or a broken bone. When old cells die, new ones replace them to ensure continuing functionality.
3. Asexual reproduction
Single-celled organisms and certain multicellular organisms use mitosis for asexual reproduction. This includes reproduction by fragmentation, as in the case of planaria, and reproduction by budding, as in the case of sea anemones. Many plants reproduce using mitosis.
First, we need to understand what meiosis is. Meiosis is the replication of cells that results in each daughter nucleus containing half of the parent cell’s chromosomes. Meiosis is used primarily for the production of gametes, which are incorporated in sexual reproduction. Thus, the main difference between mitosis and meiosis is that mitosis produces somatic (body) cells, which can go on to become part of any bodily tissue, whereas meiosis only produces germ (sex) cells. Organisms which reproduce asexually cannot undergo meiosis, whereas all eukaryotic organisms undergo mitosis. Mitosis and meiosis are similar in that both can only occur in eukaryotic cells. This is because prokaryotic cells do not contain a nucleus within which to begin the processes of mitosis and meiosis. Instead, prokaryotes replicate themselves using binary fission. Both mitosis and meiosis begin with DNA replication in the parent cell to create four sets of chromosomes: in mitosis, these sets are split to form two diploid daughter cells, while in meiosis, these sets are split to form four haploid daughter cells. This is because cells undergo only one division in mitosis, whereas they undergo two divisions in meiosis.
Hope this helps....... Stay safe and have a Merry Christmas!!!!!!!!! :D
Assume a snake must eat 5 grasshoppers per day, while an eagle must eat 2 snakes per day. how many blades of grass are needed to keep an eagle alive for a day?
Answer:
100 blades
Explanation: (=10 blades/grasshopper x 5 grasshoppers/snake x 2 snakes/eagle)
The number of grass blades required to keep an Eagle alive can be calculated using the multiplication of 10, 5 and 2 is 100 blades.
Number of snakes an Eagle must eat = 2 per day
Number of grasshoppers a snake requires per day = 5 per day
To keep an Eagle alive ;
10 blades of grass are required to keep grasshopper alive 5 grasshoppers are required to keep snake alive2 snakes are required to keep Eagle alive ;Therefore, the required number of grass blades needed will be :
10 × 5 × 2 = 100 bladesHence, the number of grass blades required to keep an Eagle alive is 100.
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In eukaryotic organisms, DNA transcription occurs in the _______ of a cell.
A.
mitochondria
B.
ribosome
C.
nucleus
D.
cytoplasm
Answer:
In eukaryotic organisms, DNA transcription occurs in the nucleus of a cell.
In crosses made among four-o'clock plants, red flower color plants are crossed with white flower color plants. All the offspring show a pink flower color. If a pink-flowered plant is crossed with a white-flowered plant, what will be the phenotypic ratios of their offspring?
Answer:
Explanation:
In Mirabilis jalapa also known as the 4'o clock plant, flower colour shows incomplete dominance that is why the F1 plant obtained by the crossing of pure Red flowered plant(RR) with pure white flowered plant(rr) shows pink flowers(Rr).
When F1 plant(Rr) is crossed is with pure white flowered plant (rr), the plant obtained would have a genotype of Rr and rr in ratio 2:2
While the phenotype will be 2 pink and 2 white at of 2:2
The phenotypic ratio of the offspring will be 2:2
Rr × rr
!
Rr Rr rr rr
Fluvial Processes
1. What type of drainage pattern is shown in the following image?
Answer: Dendritic pattern
Explanation:
The drainage pattern that is shown in the picture above is referred to as the Dendritic pattern.
Drainage Pattern simply refers to the pattern that is formed by lakes, rivers, streams etc in a drainage basin. It should be noted that a dendritic drainage patterns look like the branch of a tree that has lots of twigs and they are usually formed in areas that has flat bedrock such as shale. Since the above diagram looks like the description here, the answer is a dendritic pattern.
With parallel flow, diffusion of urea happened at regions I and II but not at regions III, IV, or V because...
A
Urea was too big to fit through the pores in regions III, IV, or V.
B
There was no concentration gradient for urea in regions III, IV, or V.
С
There was no urea in the blood in regions III, IV, and V.
D
The pore size was too small in regions III, IV, and V.
Answer:B
Explanation:bc all of the other ones was equal together and the concentration gradient could not spread them
Answer:
The correct answer is
b
Explanation:
First we can elimenate A and D because the pore size is the same.
C is wrong, there is still some urea in the blood, however is less
We are left with B which is the correct answer, i did the gizmo
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