Answers
Answer:
A- cellulose cell wall
B - cell membrane
C - Nucleus
D- chloroplast
E - Mitochondrion
Related Questions
8) The proper technique for “streaking for isolation” on an agar plate Creates ___ quadrants.
A) 1
B) 2
C) 3
D) 4
Answers
Answer:
4 quadrants are created to pick up or isolate pure colonies of microbes.
Some children are playing a kickball game on a flat field. One child kicks the ball and it rolled across
the field. Which statement best explains the motion of the ball?
A. The ball will roll until a force acts on it.
B. The ball will speed up as it crosses the field.
C. The energy in the ball will increase as it rolls.
D. The ball will roll continuously unless it hits something.
Answers
Answer:
A because depends on how a force acts on it is what happens to the ball
A town plans to clear a patch of forest to make a road wider. What possible changes should the town take into account?
Answers
Answer:
block all ways of passing through .. cut grass where you want your roads expanded so you have full room to install new roads
Molecule X is most likely what kind of compound/molecule? *
Answers
Molecule X is an enzyme to which the starch is bonded and starch- enzyme complex is formed.
What is an enzyme?An enzyme is a type of protein that acts as a catalytic agent in chemical reactions. Enzymes play a crucial role in metabolism and other biological processes by increasing the rate at which chemical reactions occur.
Enzymes work by lowering the activation energy needed for a reaction to take place. In other words, enzymes make it easier for the reactants in a chemical reaction to come together and form products. This is accomplished by the enzyme binding to one or more of the reactants, known as substrates, and bringing them into a specific orientation that promotes the reaction. Once the reaction has taken place, the enzyme is free to bind to another set of substrates and catalyze the reaction again.
Enzymes are highly specific, meaning that each enzyme typically catalyzes only one particular reaction or a small group of closely related reactions. They are also highly efficient, able to catalyze millions of reactions per second.
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i. Identify an environmental problem associated with large-scale intensive agriculture on soil.
Answers
Intensive agriculture is resulting in the loss of ecosystem and is contributing to global warming.
• An agricultural mechanization and intensification system, whose main objective is to increase the productivity from the accessible land via several means like heavy use of chemical fertilizers and pesticides is known as intensive agriculture.
• The intensive agriculture is generally aimed to feed large population of humans, however, the method has contributed as one of the biggest threat to global environment, as it is resulting in the loss of ecosystem and global warming.
• It is accountable for the 80 percent of the tropical deforestation and emergence of novel parasites and reemergence of the parasites, which were under control at one time.
• The intensive farming hampers the beneficial plants and insects, and depletes and degrades the soil it relies upon.
• It is resulting in soil erosion and is resulting in the genetic erosion of the livestock species and crops around the globe.
Thus, intensive farming in order to feed large populations is eradicating the world agriculture slowly and gradually.
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How do T cells coordinate the immune system?
Answers
Answer: Helper T cells, or Th cells, coordinate immune responses by communicating with other cells. In most cases, T cells only recognize an antigen if it is carried on the surface of a cell by one of the body's own MHC, or major histocompatibility complex, molecules.
Explanation:
Answer:
T cells identify pathogens based on antigens on the surface of pathogens. The T cells then multiply and stimulate B cells to produce antibodies. The antibodies attach to the antigens, making the pathogens a target for phagocytes.
Explanation: sample response
HI
Name at least 2 organelles depend on the ER & describe how they rely on each other
Answers
Answer:The ER also contains domains that contact the plasma membrane (PM) and other organelles including the Golgi, endosomes, mitochondria, lipid droplets, and peroxisomes.
please helppp
A heterozygous female with long whiskers mates with a heterozygous male with long
whiskers... W=long whiskers w=short whiskers
What is the PHENOTYPIC RATIO of the offsprings?
Answers
Answer:
3 long whiskers: 1 short whiskers
Explanation:
This question involves a single gene coding for whiskers length in a certain animal. The allele for long whiskers (W) is dominant over the allele for short whiskers (w). This means that a heterozygous individual (Ww) will possess a long whisker.
According to this question, a heterozygous female with long whiskers (Ww) mates with a heterozygous male with long whiskers (Ww). The proportion of offsprings that will be produced from this cross (see punnet square) is as follows:
WW, Ww, Ww, ww
WW, Ww, Ww offsprings will possess a long whisker while 'ww' offspring will possess a short whisker. Hence, the phenotypic ratio will be 3 long whiskers: 1 short whiskers
In your own words, how would you describe Heredity in one sentence?
Answers
Answer: The passing on of traits and physical features from parents to children.
Explanation:
Hope this helps! Have a good day! :)
What does measles cause by
Answers
Answer:Measles is a highly contagious virus that lives in the nose and throat mucus of an infected person. It can spread to others through coughing and sneezing. If other people breathe the contaminated air or touch the infected surface, then touch their eyes, noses, or mouths, they can become infected.Measles is caused by a virus in the paramyxovirus family and it is normally passed through direct contact and through the air. The virus infects the respiratory tract, then spreads throughout the body. Measles is a human disease and is not known to occur in animals.
It usually begins as flat red spots that appear on the face at the hairline and spread downward to the neck, trunk, arms, legs, and feet. Small raised bumps may also appear on top of the flat red spots. The spots may become joined together as they spread from the head to the rest of the body.
Explanation:
Answer: GoodMorning: ) ✨ Measles is a highly contagious virus that lives in the nose and throat mucus of an infected person. It can spread to others through coughing and sneezing. If other people breathe the contaminated air or touch the infected surface, then touch their eyes, noses, or mouths, they can become infected.Measles is caused by a virus in the paramyxovirus family and it is normally passed through direct contact and through the air. The virus infects the respiratory tract, then spreads throughout the body. Measles is a human disease and is not known to occur in animals.
It usually begins as flat red spots that appear on the face at the hairline and spread downward to the neck, trunk, arms, legs, and feet. Small raised bumps may also appear on top of the flat red spots. The spots may become joined together as they spread from the head to the rest of the body.
Have a Nice Day/Night <3 .
Distinguish between herbaceous and woody stems
Answers
Answer: herbaceous plants are plants with very flexible stems. Their leaves and stems die down to soil level at the end of every growing season amd woody plants are plants with very strong and not easily bendable stems such as trees. Woody plants produce wood as a structural tissue
Which kingdoms contain organisms that are multicellular?
Eubacteria
Animalia
Archaebacteria
Plantae
Answers
Answer:
B and D
Animalia and Plantae
Explanation:
got it right in edg (see pic)
hope this helps :)
The kingdom that contain organisms that are multicellular are Animaliia and plantae
What are multicellular organisms?Multicellular organisms refers to organisms that gave more than one cells and have nucleus.
These organisms cells bond together to form tissues.
Multiple tissues join together to form organs and organs come together to form system.
Therefore, The kingdom that contain organisms that are multicellular are Animalia and plantae
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Write a scientific explanation to explain how natural selection and adaptation increase or decreases the chances of survival for the mice if they entered one another’s environment.
Answers
Answer:
Natural selection is a factor of biological evolution, by means of which individuals who possess a certain characteristic tend to prevail over those who lack such characteristic. Thus, by reproducing, individuals with favorable characteristics end up imposing their own set of characteristics, taking control of the environment in which they develop and relegating other individuals or condemning them to their extinction or displacement.
Thus, in the case, if some mice entered the environment of others, most likely they would not be able to adapt to the conditions to which the original group of that environment had previously adapted. In this way, natural selection itself would make the new mice end up disappearing from it, in favor of the mice that already lived there and that, therefore, had adapted their characteristics to those of the environment.
What is the purpose of the part of the female reproductive system highlighted
below?
A. Transporting eggs
B. Developing a fetus
C. Storing eggs
D. Collecting sperm
Answers
Answer:Your answer for this question is D.
Explanation:
The purpose of the part of the female reproductive system highlighted is to collect sperm; that is the last option (D), and after that, the sperm go to the female fallopian tube.
What is the female reproductive system?The female reproductive system is a complex network of organs and structures that work together to produce, transport, and fertilize an egg, as well as support the growth and development of a fetus during pregnancy. The primary organs of the female reproductive system are the ovaries, which produce and release eggs, and the uterus, which is the muscular organ where a fertilized egg implants and develops into a fetus.
Hence, the purpose of the part of the female reproductive system highlighted is to collect sperm; that is the last option (D), and after that, the sperm go to the female fallopian tube.
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What are two ways you know a chemical reaction has taken place?
Answers
Which of the following sentences correctly describes the effect of an invasive species on an area?
1.Invasive species have naturally evolved to be top predators in an ecological area. 2.These species do not have a major effect on an ecosystem.
3 .However, they may decrease the population of local species.
4. This decrease causes a drop in local fishing yields.
5. Because of their exotic nature, invasive species boost local tourism.
Answers
Answer:
They may decrease the population of local fish
Explanation:
Please help :)
True or False? Circle T or F
1. Earthquakes occur only once or twice a year. T or F
2. The Earth's surface is very rigid. Tor F
3. Earth's surface floats on molten rock. T or F
4. Tectonic plates are very small. Tor F
5. Oceans float on tectonic plates. T or F
6. Volcanoes and mountains are formed when tectonic plates are moving apart. Tor F
7 In most earthquakes faults are vertical. Tor F
Answers
V
Explanation:
1. F
2.T
3.T
4.F
5.F
6.T
7.T
what is a selectable marker?????
Answers
This is the answer that i know !
Hope it helps , stay home stay safe dear !!
In a DNA molecule, G pairs with __
Answers
Answer:
cytosine
Explanation:
Guanine is one of the building blocks of DNA. It's the G in the A, C, G, or T. Guanine in the double helix pairs with cytosine, so you will see CG pairs; one on one strand and one on the other.
Answer:
In a DNA molecule, G pairs with C
Explanation:
Wish you luck! Have a good day~
Metagenomics (check all that apply): Group of answer choices Can leverage Next Generation Sequencing technology to identify and characterize organisms. Rarely finds previously unknown microorganisms. Has resources to support analysis at the DOE-JGI site. Can identify microbiologic organisms without traditional isolation and culturing of individual organisms.
Answers
Answer:
- Can leverage Next Generation Sequencing technology to identify and characterize organisms
- Has resources to support analysis at the DOE-JGI site.
- Can identify microbiologic organisms without traditional isolation and culturing of individual organisms.
Explanation:
Metagenomics can be defined as the study of whole genomes of biological communities recovered from environmental samples. This genomic field has enabled the discovery of new species (microorganisms) and their effects on the environment. Next-Generation Sequencing (NGS) technologies allow to obtain huge amounts of genomic data, which has been a limitation in genomics and metagenomics. Metagenomic NGS (mNGS) is a technique used for sequencing nucleic acids present in a biological sample containing mixed populations of microorganisms. Finally, the Department of Energy Joint Genome Institute (DOE JGI) is a referent in metagenomic analysis, especially in genome assembly data obtained from microbial communities. This Science User Facility has developed a series of bioinformatics tools and databases in order to analyze metagenomic information.
help plz
A number of studies are carried out in order to verify if there is a relation between the death rate by cardiac diseases ánd the cholesterol level in the blood.The results are shoen in the adjacent graph..
1) explain the relation between the level of blood cholesterol and the risk of cardiac accident
2) firmulate the hypothesis tested in this study
3) what do you conclude concerning the formulated hypothesis?
Answers
Answer:
The correct answer is :
1. increase in cholesterol level leads to more death due to cardiac disease.
2. Hypothesis: "if the cholesterol level is high in an individual, then the risk of death due to cardiac disease is high"
3. Everyone should limit or control their cholesterol level to avoid cardiac disease or it might be lethal.
Explanation:
In this graph, it is represented that there is an increase in the deaths due to cardiac disease with the increase in the cholesterol in the body. The death increase slowly up to 2.5 gL and after that, there is a huge spike in death, which explains that the higher the cholesterol level higher the chances or risk of death due to cardiac disease.
Hypothesis: "if the cholesterol level is high in an individual, then the risk of death due to cardiac disease is high"
On the basis of this one should control its body cholesterol to avoid the chances of cardiac disease as it may lead to death.
When a car is traveling at a constant speed of 35 mph until the driver presses the brake, this is an example of Newton’s
Answers
i dont know hit the book tho your bad
A group of students were asked to study and record the movement of amoeba to try and determine how they move. The group knew that they must plan this descriptive investigation carefully, including the selection of the appropriate technology needed to observed these single-celled organisms. Which type of microscope would be most appropriate for this investigation? A) Compound Light Microscope B) Scanning Electron Microscope (SEM) Stereo Microscope (Dissecting Scope) D Transmission Electron Microscope (TEM)
Answers
Answer:
A. Compound Light Microscope
Explanation:
USA TestPrep
Answer:
coumpound light microscope
Explanation:
If you owned a large, varied music collection, how might you devise a key to keep track of all your different kinds of music? Present your idea comprehensively.
Answers
Answer: i would keep all my music in safe with a lock on it so tht nobody cant touch it
Explanation: hope this answers your qeustion
during what part of the mitosis process does the dna replicate
Answers
Answer:
In the interphase
Explanation:
Veronica has a Hitchhiker’s thumb, but neither of her parents do. She also has a different skin tone than her parents, she likes different foods than they do, and she will probably end up taller than both of them. Scientists think that differences between closely related people are
1. Entirely a result of genetic factors.
2. Entirely a result of environmental factors.
3. Due to both genetic and environmental factors.
Answers
Answer:
3. Due to both genetic and environmental factors.
4. Do you think that adding more enzymes to a solution would increase the rate of reaction? Why or why not?
Answers
Answer:
By increasing the enzyme concentration, the maximum reaction rate greatly increases. Conclusions: The rate of a chemical reaction increases as the substrate concentration increases. Enzymes can greatly speed up the rate of a reaction.
Consider a cross between a plant with two flower colors, yellow and red. Yellow (Y) exhibits complete dominance over red (y). It also has either single blossoms or double blossoms, single blossoms (S) exhibit complete dominance over double blossoms (s). A dihybrid yellow, single blossomed flower is crossed with a red flowered and double blossomed plant. You observe the following phenotype frequencies among the 1545 offspring plants:
500 yellow flowers and single blossom plants
515 red flowers and double blossom plants
260 yellow flowers and double blossom plants 270 red flower and single blossom plants.
What is the recombination frequency between these two genes?
a. (260+270) 1545
b. 270/1545
c. 1545/ (260+270)
d. 260/1545
e. (500+515)/1545
f. 1545/260
g. 1545/270
From these results one can conclude that:_______.
a. the two genes are linked
b. the two genes are not linked
c. if the genes are linked, they are separated far enough apart to appear to assort independently
Answers
Answer:
1) option a is correct. (260+270)/1545
(Note about this option: In the statement, it is written as (260+270) 1545. Lacks the division symbol, / )
2) From these results one can conclude that the two genes are linked (option a)
Explanation:
To know if two genes are linked, we must observe the progeny distribution. If heterozygous individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. If we observe a different distribution, phenotypes appearing in different proportions, we can assume linked genes in the double heterozygote parent.
We might verify which are the recombinant gametes produced by the di-hybrid, and we will be able to recognize them by looking at the phenotypes with lower frequencies in the progeny. Phenotypes with the highest frequencies represent the parental gametes.
To calculate the recombination frequency, we will use the following formula: P = Recombinant number / Total of individuals.
In the present example:
Parental) YySs x yyss
Gametes) YS parental type ys, ys, ys, ys
ys parental type
Ys recombinant type
yS recombinante type
The total number of individuals in the offspring: 1545
Phenotypic class Number of offspring
500 Y-S- (parental)515 yyss (parental)260 Y-ss (recombinant)270 yyS- (recombinant)According to this information, the phenotypic frequencies of the progeny differ from the phenotypic ratio 1:1:1:1. We can assume then, that these genes are linked.
The recombination frequency is:
P = Recombinant number / Total of individuals
P = 260 + 270 / 1545
P = 530/1545
P = 0.343
The genetic distance between genes is 0.343 x 100= 34.4 MU.
HELP BRAINLIEST! 25 POINTS
Humans take longer to change the earth's surface than plants take.
True
False
Answers
Answer:
true .......... hopefully
Answer:
False
Explanation:
Humans have technology and alot of other stuff while plants are only have natural resources
How many amino acids are there in A peptide, B peptide and C peptide in human insulin???
Answers
Answer:
Insulin is composed of an A chain of 21 amino acids and a B chain of 30 amino acids. C-peptide is a peptide composed of 31 amino acids
Explanation:
Insulin is composed of an A chain of 21 amino acids and a B chain of 30 amino acids, the chains being held together by two disulfide bonds. A third disulfide bond is present within the A chain. Human insulin differs from porcine insulin by a single amino acid and from beef insulin by three amino acids.
Explanation:
Dashed circles around either an R or K indicate sites of peptidase cleavage that result in generation of the mature insulin that is comprised by two separate peptides: the A chain with 21 and the B chain with 30 amino acids. A third C peptide with 21 amino acids served as a linker between the A and B chains.