Answer:
True
Explanation:
A vesicle is used in the production of proteins in the cell. The given statement is true. Proteins are produced in the endoplasmic reticulum and processed and packaged in the vesicles.
What is Protein production?A protein is synthesized in the ribosomes of rough endoplasmic reticulum. These proteins are translated from the mRNA which contains the genetic sequence that codes for specific proteins.
The proteins synthesized in ribosomes will then undergo post-translational modifications in the golgi apparatus, and are transported in the form of vesicles to their particular destinations.
The vesicles act as containers which carry the proteins from the organelle where the proteins are produced (rough endoplasmic reticulum) to the destination i.e., plasma membrane.
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are proteins that are found on the surface of some red blood cells,
When an instruction for a variation of a trait is not shown in by the organism, but the organism carrys it and can pass it on to the next generations, these organisms are called _______.
a
dominant
b
carriers
c
recessive
d
holders
Answer:
b. carriers
Explanation:
Recessive alleles do not create a phenotype if a dominant allele is present BUT the organism itself is called a carrier because it carries the recessive trait.
Consider what you know about biotic and abiotic factors in an ecosystem. What is one of the reasons that nutrients in a vegetable patch might be considered abiotic?
Answer:
Nutrients can come from dead plants that have decomposed. Available nutrients affect the carrying capacity of garden plants. Nutrients are mostly obtained from the soil.
One of the reasons that nutrients in a vegetable patch might be considered abiotic is:
The nutrients are gotten from the soil and they are decomposeAccording to the given question, we need to give one reason why the nutrients in a vegetable patch can be considered an abiotic factor.
As a result of this, we can see that the nutrients in a vegetable patch can be considered as an abiotic factor because they are already decomposed.
An abiotic factor in an ecosystem is any non living thing which has a direct (or indirect) impact on the living things in an ecosystem.
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Does a particle of a liquid or particle of a gas have more kinetic energy
Answer:
Liquid because it's always moving somehow, so the particles have more kinetic energy
a crow vending machine is associated with what type of learning
Sorry you've waited so long for an answer! I belive the type of learning associated with a crow vending machine is trial and error! So sorry once again!
what is the mystery element? is this a metal, nonmetal, or metalloid?
This is a metal!
I believe this is a metal because non-metal can be cut out instantly as this element shown has a metallic luster. Metalloids can be removed as they are worse at the conduction of electricty than metals, and all of the other properties listed are properties held by metals.
(Yes this is just my old answer but only because it is really the same reasoning)
Hope this helps, if not, comment below please!!!
:L
Which stage of the cell cycle lasts longest?
Answer: i think the Interphase because
Interphase is the longest part of the cell cycle. This is when the cell grows and copies its DNA before moving into mitosis. During mitosis, chromosomes will align, separate, and move into new daughter cells. The prefix inter- means between, so interphase takes place between one mitotic (M) phase and the next.
Explanation:
hope this helps have a nice day ❤️❤️❤️❤️
Answer:
Metaphase
Explanation:
hope this helps!!!
How did Hershey and Chase use radioactivity to draw a conclusion about proteins and DNA?
Hershey and Chase studied bacteriophages which are viruses that attack bacteria. They labeled the bacteriophage with radioactive isotopes to see where it goes when a virus attacks.
What is Hershey and Chase experiment?They discovered that nearly all the radioactivity was found in phosphorus, confirming that DNA contains genetic material, not protein.
The final experiment, also known as the Waring Blender experiment, in which Hershey and Chase demonstrated that phages only injected their DNA into host bacteria and that the DNA acted as the replicating genetic element of phages, is the Hershey-Chase experiment that is most well-known.
Hershey and Chase discovered proof that phages introduced their DNA into host bacteria in the prior experiment.
Therefore, Hershey and Chase studied bacteriophages which are viruses that attack bacteria. They labeled the bacteriophage with radioactive isotopes to see where it goes when a virus attacks.
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Some cells contain two copies of each chromosome, and some cells contain only one copy of each chromosome. Which types of cells contain two copies of each chromosome?
Select all that apply.
A. egg cell
B. skin cell
C. body cell
D. blood cell
E. sperm cell
The type of cell that contain two copies of each chromosome should be considered as the sperm cell and the body cell.
What is a chromosome?It is considered as the thread-like structures that should be located inside the animal or plant cells nucleus. Each and every chromosomes should be made of protein and the individual molecule of DNA.
Therefore, The type of cell that contain two copies of each chromosome should be considered as the sperm cell and the body cell.
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When lions prey on a herd of antelopes, some antelopes are killed and some escape and live to reproduce. Which of the following statements best describes this situation?
A. Natural selection is a random process.
B. Individuals with the best adaptations survive long enough to have offspring.
C. Species remain unchanged throughout time.
D. Individuals pass along acquired characteristics to the next generation.
Answer:
B.
Explanation:
Where on earth did life first begin?
Answer:
As of 2017, microfossils (fossilised microorganisms) within hydrothermal-vent precipitates dated 3.77 to 4.28 Gya in rocks in Quebec may harbour the oldest record of life on Earth, suggesting life started soon after ocean formation 4.4 Gya during the Hadean Eon.
Explanation:
brainliest plsssssssss
Can a single cell be a living organism?
1.yes
2.no
A single-celled organism can be a living organism. In the single-celled organisms, all the functions are performed by a single cell. Thus, the given statement is true.
What are the single-celled organisms?A unicellular organism is also known as a single-celled organism. The unicellular organism is an organism which consists of a single cell only, unlike the multicellular organism which consists of multiple cells and tissues. These organisms fall into two major categories, which are the prokaryotic organisms and the eukaryotic organisms.
The two categories of organisms are classified on the basis of the membrane-bound organelles and a well-defined nucleus present in the cell. Some examples of the single-celled organisms include Escherichia coli, Diatoms, Protozoa, Protista, Pneumococci, and Dinoflagellates.
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How does a fungus get food?
Question 1 options:
both autotroph and heterotroph
Neither. It doesn't eat!
autotroph
heterotroph
Answer:
They are Heterotroph as they cant make their own food and have feed of dead things of decomposing.
A student performed an experiment by placing the de shelled egg in a concentrated salt solution for 5 minutes.What changes did he observe in the egg?Name the process
Answer:
the egg begins to shrink
Explanation:
During the 5 minutes that the egg is in the concentrated salt solution he would notice that the egg begins to shrink. This occurs due to the process known as osmosis which happens when a solvent passes a semipermeable membrane towards where there is a higher concentration which in this case would be within the egg. Since the egg would contain more water than the salt solution causing it to shrivel and shrink.
Mary is a carrier for a mutated gene that causes sickle cell disease. Which of the following statements is true about Mary?
A. If Mary has a child with someone who has sickle cell disease, there is a 50% probability their child would have the disease.
B. If Mary has a child with someone who does not have a mutated sickle cell allele, there is a 25% probability that the child will be a carrier.
C. If Mary has a child with someone who is also a carrier, there is a 50% probability their child would have the disease.
D. Mary has sickle cell disease.
The statement is true about Mary is If Mary has a child with someone who has sickle cell disease, there is a 50% probability their child would have the disease. Thus, option A is correct.
What is Sickle cell anemia?
Sickle cell anemia is a hereditary disease which provides less oxygen to cells due to a change in the shape of red blood cells which fails to carry oxygen to cells.
In sickle cell anemia, the effected or mutated part is the beta gene that normally makes hemoglobin but due to the mutation in the amino acid, the protein formed is defected and fails to perform its normal function.
As mentioned above, it is a heredity diseases and pass from generations to generations.If Mary has a child with someone who does not have a mutated sickle cell allele, there is a 25% probability that the child will be a carrier.
Therefore, The statement is true about Mary is If Mary has a child with someone who has sickle cell disease, there is a 50% probability their child would have the disease. Thus, option A is correct.
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If a female fruit fly heterozygous for red eyes (X RX r) crossed with a white-eyed male (X rY), what percent of their offspring would have white eyes? (Draw a Punnett Square.)
Answer:
6.25%
Explanation:
Given that:
The trait of a female fruit fly that is heterozygous for red eyes = XRXr; &
The trait of a white-eyed male is XrY_ ;
since Y is dominant y; the male trait can either be XrYR or XrYr
So, let assume that it is XrYr
Then; if each trait self crossed; we have:
XRXr = XX Xr XR Rr
XrYr = XY Xr rY rr
Thus, the punnet Square can be computed as:
XX Xr XR Rr
XY XXXY XXYr XXYR XRYr
Xr XXXr XXrr XXRr XRrr
rY XrYX XxYr XrYR RrYr
rr XrXr Xrrr XrRr Rrrr
∴
the percentage of offspring that would have white eyes XrY_ is:
1/16 = 0.0625
= 6.25%
4. Why does cell division take place in single celled organisms?
A In order for organisms to grow
B.te reproduce and pass along genetic information
C.to enable the organisms to heal injured tissues
D.to make specialized cells for different functions
Answer:
A) In order for organisms to grow.
Explanation:
Tell me if I am wrong. I hope this helps :)
Cell division in a cell takes place in the single-celled organisms to reproduce and pass along the genetic information of the cell. Thus, the correct option is B.
What is Cell division?Cell division is the process of division of cell through which a parent cell divides into two daughter cells with equal genetic content which are similar to the parent cell. Cell division generally occurs as a part of a larger cell cycle in which the cell grows in size and the cell replicates the chromosomal material before it is undergoing cell division.
In the unicellular organisms, cellular division is a significant process through which a unicellular organism undergoes development and result into the formation of a new organism with genetic material which is similar to the parent cell. In the multicellular organisms, process of cellular division helps in maintaining a balance between the genetic material such as the DNA and the RNA contents as well as the nuclear and cytoplasmic contents of the cell.
Therefore, the correct option is B.
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Which statement accurately compares archaebacteria and eubacteria?
Both take different shapes and sizes.
Both are always heterotrophs.
Both can sometimes live in extreme environments.
Both are known as "true" bacteria.
Answer: C - Both can sometimes live in extreme environments.
Explanation: On edge2021.
if wrong sorry but I Think A
11. How has our misguided, or inappropriate, use of antibiotics led to the development of organisms like
MRSA and VRSA?
Answer:
1. use of the wrong antibiotic
2. use of insufficient concentration of the right antibiotic
Explanation:
MRSA means Methicillin-resistant staphylococcus aureus
VRSA means Vancomycin-resistant Staphylococcus aureus
These are resistant forms of the bacteria Staphylococcus aureus to the antibiotics mentioned.
Bacterial resistance to antibiotics occurs when bacteria develop mechanisms that protect them against the effects of previously effective antibiotics.
Misguided and inappropriate use of antibiotics results in resistance, and they mainly occur as a result of two activities:
1. Use of wrong antibiotics: antibiotics are chosen using a microbiological technique called 'sensitivity testing', to determine which antibiotic is effective against a bacterium. However, when antibiotics are taken without proper sensitivity testing, the bacteria develop resistance against such antibiotics.
2. Use of inadequate concentration of the right antibiotic: This involves using less than the minimum inhibitory of minimum bactericidal concentration of an antibiotic against a bacteria. In this case, the organism has ample time to evolve in the presence of the antibiotic, hence the occurrence of resistance.
Monosaccharides are to carbohydrates as ___
are to proteins.
Answer:
Amino acids
Explanation:
Answer:
AMINO ACIDS
Explanation:
AMINO ACIDS ARE THE MONOMERS OF PROTEINS
describe the hygiene and care of the tooth
Answer:
in my opion, hygien and care for your teath is more like, brusshing your teeth three times a day if possible and also mouth wash and dont forget to floss if possible
Explanation: My explination for this is teeth are important and needed to be taken care of.
Answer:
Hygiene is a series of practices performed to preserve health.
According to the World Health Organization, "Hygiene refers to conditions and practices that help to maintain health and prevent the spread of diseases." Personal hygiene refers to maintaining the body's cleanliness.
Many people equate hygiene with 'cleanliness,' but hygiene is a broad term. It includes such personal habit choices as how frequently to take a shower or bath, wash hands, trim fingernails, wash clothes, and basically self care. It also includes attention to keeping surfaces in the home and workplace, including bathroom facilities, clean and pathogen-free. Many people know without taking care of your teeth the food would leave many bacteria and without flossing it, it can lead to the food between your teeth to get bad causing a cavity, then tooth decay.
Good luck.
are protein molecules made by ribosomes in the cell
Answer: yes they are
Explanation:
Answer:
Yes that would be Correct.
Explanation:
Please help me on this!
Answer:
im pretty sure its B
Explanation:
Living organisms grow bigger, repair damage to themselves, and reproduce. In what way are all these processes similar?
A. New cells are made in all of them.
B. Old cells are recycled in all of them.
C. Energy is produced in all of them.
D. Carbon dioxide is needed for all of them.
Answer:
New cell are made
Explanation:
In the diagram of the human urinary system below, which letter indicates a structure responsible for filtering urea and other cellular wastes out of the bloodstream?
A-Kidney
B-Ureter
C-Bladder
D- Urethra
Jill uses a magnet to pick up a nail. Then, she touches the nail to a paper clip and picks up the paper clip. What will most likely happen when she pulls the magnet away from the nail?
The paper clip will stay attached to the nail because the nail is now a permanent magnet.
The paper clip will stay attached to the nail because the paper clip is now a permanent magnet.
The paper clip will fall off of the nail because the nail was only a temporary magnet.
The paper clip will fall off of the nail because the nail is now magnetized in the opposite direction.
Answer:
C but see below.
Explanation:
e. The paper clip will likely fall off because it wasn't attached to the nail long enough to be magnetized.
The same answer would apply to the nail. It likely was not held onto the magnet long enough to pick up a magnetic force that would be strong enough to overcome the gravitational force pulling on the clip.
Of the four answers you have given us, I would agree with C. But as I've argued above, the real reason is likely there.
Answer:
C
Explanation:
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Which of the following is NOT an example of radiant energy?
Group of answer choices
The light from the sun.
The heat from a fire.
The light from a light bulb.
The energy in a ball as it is falling.
Answer:
The energy in a ball as it is falling.
Answer:
the energy in a ball as it is falling
Explanation:
it's just falling so it's not really energy it's just being forced to the ground
Regulation of body temperature in humans is most closely associated with the
A) production of gametes
B) evaporation of sweat
C) absorption of carbon dioxide
D) production of hydrolytic enzymes
Answer:
b
Explanation:
Regulation of body temperature in humans is most closely associated with the evaporation of sweat that is present in option B, as the higher the body temperature, the more sweat is needed to maintain homeostasis.
What is the need for homeostasis in the body?The body maintains a particular internal temperature irrespective of changes in the external environment, and this is possible because of the homeostasis in the body, which is important because many of the body's processes are temperature and pH sensitive, such as the enzymatic function, the alkalinity of blood, etc.
Hence, regulation of body temperature in humans is most closely associated with the evaporation of sweat that is present in option B, as the higher the body temperature, the more sweat is needed to maintain homeostasis.
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Plants take in carbon dioxide and release gas
Answer:
yes, but by gas you mean oxygen right?
Explanation:
Answer: During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. ... This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.
Explanation:
Green seed color (G) is dominant over yellow seed color (g). If a purebred green seed is crossed with a yellow seed, what are the resulting genotypes expressed as a percent?
A) 50% green, 50%
B) yellow, 100% green
C) 50% Gg, 50% gg
D) 100% Gg
E) None of the above