Answer:
Over the ages the tendency of crop improvement efforts has been to select varieties with traits that give the highest return, largely by concentrating on genetic strains that combine the most desirable traits. The resulting homogeneity and uniformity can offer substantial advantages in both the quantity and quality of crop harvested, but this same genetic homogeneity can also reflect greater susceptibility or pathogens. Thus it appears the more that agricultural selection disturbs the natural balance in favor of variety uniformity over large areas, the more vulnerable such varieties are to losses from epidemics. The increased risks presented by genetic selection and the increased cultivation of only a few selected cultivars are easily perceived. Chapters 1 and 2 of this reports focus on crop vulnerability, because it is a broadly recognized problem. The issue of genetic vulnerability, however, is only one of several important problems affecting the management of global genetic resources.
Need Answer ASAP only 3 min
Answer:
H.
Explanation:
other ones don't match up with the correct functions.
Question 17 of 25
Which strand of mRNA would be made during transcription using the DNA
strand shown below?
GCA TAG
A. GCU AUG
B. TAG GCA
C. CGU AUC
D. GCT ATC
Answer: The answer is C
Explanation: C and G pair with each other and T pairs with A and A pairs with U
A pulley system has an mechanical advantage of 10. If a mover used this pulley to lift a piano with a force of 1500 N a distance of 4 m, how much force must the mover use?
PLEASEEE HELP!!!!! The position of Earth in space compared with other bodies, such as the sun and moon, determines many characteristics of the hydrosphere. Describe how it causes the following:
a. The existence of liquid water on Earth (2 points)
b. Tides (2 points)
A test cross to determine the genotype of a green-colored seed would best be represented by _______.
a. Yy x Yy
b. YY x YY
c. YY x Yy
d. Yy x yy
Answer:
d. Yy x yy
Explanation:
In Mendelian inheritance, a TEST CROSS is a cross used to determine the actual genotype of a dominant phenotype. The test cross is usually performed between the unknown genotype and a recessive genotype. If all the offsprings are dominant, the unknown genotype is the same allele but if the offsprings are half dominant and half recessive, the unknown genotype is HETEROZYGOUS.
In this case, a test cross to determine the genotype of a green-colored seed would best be represented by Yy × yy because a test cross must include a recessive genotype, which is "yy" in this case.
Label the nucleotide correctly
C
* phosphate
:: deoxyribose sugar
nitrogenous base
Answer:
Nucleotides comprise:
a 5-Carbon deoxyribose sugar, one nitrogenous base (adenine, guanine thymine, and cytosine) and a phosphate group.Explanation:
Nucleotides are monomers that makeup DNA- a nucleic acid that functions as a storage molecule for encoding proteins, along with RNA a ribose sugar-containing nucleotide. Nucleotides contain a 5-carbon deoxyribose or ribose sugar, phosphate and one of four nitrogenous bases:
Adenine (A)Guanine (G)Cytosine (C)Thymine (T). Uracil (U) found in RNAEach nucleotide derives its name from its nitrogenous base. The nucleotides on a single strand polymerize via covalent bonding. This occurs between two nucleotides in an esterification reaction where a phosphodiester bond is formed. In double helix formation, base pairs form hydrogen bonds with each other.
Location X and Y are adjacent. Location X has a lower air pressure than Location Y. What will most likely happen?
Wind will blow from one location to another.
Air above Location Y will rise up and condense.
Temperature at the two locations will become equal.
Convection currents of air above the two locations will stop.
Answer:
Wind will blow from on location to another.
Explanation:
I hope this helps!!!
Answer:
A, Wind will blow from one location to another.
What would happen to a bunch of balloons that were inflated outside when it was 95 degrees F and you took them into an ice hockey rink where it was 45 degrees F *
Answer:
The balloon shrinks
Explanation:
According to Charles law, temperature and volume are directly proportional. When temperature increases, volume of the gas inside the balloon increases and vice versa at constant pressure.
However, when the balloons are taken into an ice hockey rink and their temperatures drop from 95 degrees Fahrenheit to 45 degrees Fahrenheit, the molecules of gas in the balloons loose energy and move at slower speeds tending to stick closer together. The volume of the balloon therefore decreases accordingly. This means that the balloon shrinks.
What is the purpose of the chemical transmitter in a control system?
to enter a cell at a specific receptor site
to increase the external stimulus acting on the cell
to decrease the internal stimulus
to neutralize the stimulus at the plasma membrane
cause an internal cell reaction which maintains homeostasis
Answer:
A. to enter a cell at a specific receptor site.
Answer:
To enter a cell at a specific receptor site
AND
To cause an internal cell reaction which maintains homeostasis
Explanation:
Hope this helps! :D
Nucleic acids are the main source of energy for living things.
O True
O False
Answer:True
Explanation:
Answer:
True
Explanation:
Have a great day!
If population remain geographically isolated for thousands of generations, what would happen?
Answer: They would die, or go insane
Explanation: First off, they need to have a steady food supply to maintain society. If, lets say, the food ran out, then everyone would die as they were isolated and had no other food source. Since the human body needs to have interaction, if a certain group of people were isolated, they would most likely also go insane due to the lack of no other people. Of course, the info you gave was very vague, so I couldn't really give a good answer, so yeah
One reason male peacocks spread their tail feathers is to attract a mate. How does choosing a male with a bright, full tail increase a peahen’s chance of producing healthy peachicks?
Answer:
It means that the peacock is more than likely healthy meaning healthy offspring?
Explanation:
Answer:
Typically, if a peacock has a bright tail with many feathers and eyespots, a female will choose him. These tail features indicate that the peacock may be healthier than other males and, therefore, produce healthier peachicks.
Explanation:
sample response on edge 2020
monster genetic lab
anyone?? it’s important
Answer:
Monster genetic lab is important because it is usés for testons or DNA etc
what is the job of the ribosomes,mitochondria,cell wall,vacuole and chloroplast.....plzzzzzz
Answer:
ribosome- decoding the message and the formation of peptide bonds
mitochondria- generate most of the chemical energy needed to power the cell's biochemical reactions.
vacuole- maintain water balance
chloroplast- convert light energy into relatively stable chemical energy
Explanation:
Explanation:
Ribosomes produce proteins from amino acids
Mitochondria produces energy (ATP) for cell
Cell wall in plant cells controls passing molecules and...
Also gives the plant cell a stable shape.
Vacuole storages water pigmants antioxidants and....
Chloroplast makes O2 in photosynthesis.
Hope It was helpful
A small water plant (elodea) was
placed in bright sunlight for five hours as
indicated below. Bubbles of oxygen gas
were observed being released from the plant.
Sun
Bubbles of oxygen gas
Rubber stopper
Glass tube
Water
Test tube
Elodea
Since oxygen gas is being released, it can be inferred
that the plant is
A. producing glucose
B. releasing energy from water
C. making protein
D. carrying on active transport
Answer:
A. producing glucose
Explanation:
Since oxygen gas is being released, it can be inferred that the plant is producing glucose. Thus, the correct option for this question is A.
What are the products of the photosynthesis reaction?The products of the photosynthesis reaction are oxygen and glucose. They are produced when carbon dioxide and water react with each other in the presence of bright sunlight.
According to the context of this question, if a small water plant was placed in bright sunlight for five hours. Bubbles of oxygen gas were observed being released from the plant. This means that the plant started the process known as photosynthesis which assists the plant in delivering energy in the form of glucose.
Therefore, since oxygen gas is being released, it can be inferred that the plant is producing glucose. Thus, the correct option for this question is A.
To learn more about Photosynthesis, refer to the link:
https://brainly.com/question/19160081
#SPJ2
Given that almost all organisms obtain energy from food by the process of cellular respiration, which is the most likely explanation for what prevents Earth from running out of oxygen?
A. The net effects of the reactions of photosynthesis and cellular respiration are the opposite of one another, therefore the products of one are the reactants of the other, creating a cycle.
B. The energy flow—and thus oxygen flow—for cellular respiration and photosynthesis take place in the same direction, and therefore build upon one another.
C. Cellular respiration is a process that releases energy and oxygen, while photosynthesis withdraws energy and uses oxygen, therefore keeping each process in balance.
D. Oxygen readily accepts electrons, so cellular respiration uses a negligible amount of oxygen.
the answer would be A
The net effects of the reactions of photosynthesis and cellular respiration are the opposite of one another, therefore the products of one are the reactants of the other, creating a cycle. Hence option A is correct.
What is photosynthesis?Photosynthesis is defined as the process through which green plants use energy from sunlight to transform carbon dioxide and water into food. The process of photosynthesis is used by plants, algae, and some microorganisms to convert light energy into chemical energy. Photosynthesis is a process, not an event. Every time sunshine is present, it happens continually.
Specifically, glucose-stored energy is converted to ATP during cellular respiration. The chemical energy the cell can use is called ATP, or adenosine triphosphate. It is the molecule that gives your cells the power they need to carry out tasks like contracting your muscles when you walk down the street.
Thus, the net effects of the reactions of photosynthesis and cellular respiration are the opposite of one another, therefore the products of one are the reactants of the other, creating a cycle. Hence option A is correct.
To learn more about photosynthesis, refer to the link below:
https://brainly.com/question/1388366
#SPJ2
The shorter the wavelength the higher the frequency.
Lesson 4.07
Question 4 options:
True
False
Answer:
Your Answer Is False :)
Explanation:
you don't need more info i would just report the guy.. its a very easy question and im sure your already done with the test. i am also taking the test in k12 :)
Need help with this one I don’t understand!!
Answer:
true
Explanation:
What is the role of synovial fluid in synovial cavities?
A. Assisting in digestion
B. Lubricating cartilage at joints
C. Storing hormones needed to respond to stress
D. Moisturizing and filtering air before it reaches the rest of the body
Answer:
B.Lubricating cartilage at joints
Which of these best explains the relationship between DNA, proteins and life functions?
O All DNA is made of proteins; proteins code for genes: genes carry out life functions
O All DNA is made of genes: DNA codes for proteins: proteins carry out life functions
All genes are made of DNA genes code for proteins proteins carry out life functions
O All genes are made of proteins, proteins code for DNA DNA carries out life functions
As
Answer:
Genes are made of DNA; DNA codes for proteins; proteins carry out life functions
Explanation:
The correct statement is "All DNA is made of genes: DNA codes for proteins: proteins carry out life functions"
The deoxyribonucleic acid (DNA) chain is known as a gene, a structure that is constituted as a functional unit in charge of the transfer of hereditary traits.DNA is the biopolymer that houses the data for the synthesis of proteins and that makes up the genetic material that cells have.The functions of proteins are specific to each of them and allow cells to maintain their integrity, defend themselves from external agents, repair damage, control and regulate functions, among other life functions.Therefore, we can conclude that DNA stores the instructions for the synthesis of all the proteins that make up an organism and the minimum units of this genetic information are called genes.
Learn more about DNA, proteins and genes here: https://brainly.com/question/12359419
Which macromolecule provides the energy that starts glycolysis?
ATP
sugar
carbon dioxide
water
Answer:
It starts with sugar, or C6H12O6 being broken down.
Explanation:
Also, as seeing that it is the only macromolecule here and because of the fact that glycolysis uses glucose, or sugar, your answer is B, sugar.
The macromolecule that provides the energy that starts glycolysis is ATP.
ATP:
Adenosine triphosphate (ATP) is a biological molecule that stores and releases energy for living cells.ATP is structurally adapted to its function. It releases energy for use by most metabolic activities that occurs in living cells.One of these metabolic activities is glycolysis, which is the process by which glucose sugar is broken down in the cytoplasm of the cell. Glycolysis is the first stage of cellular respiration and it requires 2 molecules of ATP to occur. Therefore, the macromolecule that provides the energy that starts glycolysis is ATP.Learn more at: https://brainly.com/question/16357043?referrer=searchResults
4. According to the Hot Spots and Plumes Lab, there was no evidence that the Pacific Plate has changed direction.
true
false
Scientific models can be made of plastic or even just be a drawing. Which is a limitation of the drawing and not a model? I need the answer quickly helppp
Answer:
It did not explain the process more clearly.
Explanation:
Limitation of the drawing is that it did not explain the process or phenomena clearly as compared to model which shows a phenomena more clearly. the main reason for that the model has a physical body while on the other hand, drawing is only the picture. in the model we can perform the whole process how a phenomena occurs, its different stages and its final outcome while these things can't be done with drawings.
Which zoologist stated that all animals are composed of cells
Answer:
Theodor Schwann
Explanation:
Why is it important for organisms to get rid of waste?
There are different types of waste such as carbon dioxide and that must be removed. If they are allowed to accumulate they can and will cause poisoning which slows down vital chemical reactions. When excretory organs such as your kidney's are damaged, the organism quickly displays symptoms of poisoning and death is rapid unless treated immediately.
ano ang nth time?(=___=)
Answer:
ano ang nth time is 12:30 p.m.
Explanation:
Also can u pls mark me brainliest im new
Which of these conditions is least likely to cause a species to become extinct due to environmental changes?
A.Specific food preferences
B.More competition for food
C.More genetic variation
D.Less genetic variation
Answer:
B
Explanation:
can someone help me with a summary of asexual and sexual reproduction summary?
Answer:
Asexual reproduction is when the parent reproduces without having any sexual contact with a partner and they don't need any kind of fertilization from another partner, sexual reproduction requires both a male and female partner, and fertilization of eggs must occur.
Can some one help me plzzzzzz
Answer:
you are correct it is it relieves energy from mitochondria
Photosynthesis uses sunlight to convert water and carbon dioxide into Answer Choices:
[oxygen and carbon}{high energy sugars and proteins}{ ATP and oxygen} {oxygen and high energy sugars}
oxygen and high energy sugars
Explanation:
In photosynthesis, carbon dioxide and water is used by plants and converted into oxygen and glucose. Glucose is another way of saying sugar.
Hope this helps :)