Answer:
The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture).
Explanation:
Hope this helps :D ( I just copied and pasted)
Answer:
Fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons
Explanation:
which statement best explains what happens when a cell is placed in a sugar solution with a sugar concentration that is lower than that of the cytoplasm of the cell?
Answer:
B.
Explanation:
I'm not COMPLETELY sure, but usually water wants to always make everything equal, so in order to make the sugar levels in both even, it will leave the cell to increase sugar levels inside and decrease levels outside.
Cells spend very little of their life performing mitosis. Most of a cell’s life cycle is spent in interphase. Interphase is made up of the first growth phase, the synthesis phase, and the second growth phase. The synthesis phase is characterized by -
The division of cytoplasm
Cell division
Replication of mitochondria and other organelles
DNA replication
Answer:
DNA replication
Explanation:
Synthesis is the stage characterized by DNA replication. It is after the G1 phase
Most of the cell's time is spent in the interphase. The first growth phase comes first, then the synthesis phase, and finally the second growth phase. In the synthesis phase, DNA replication occurs. So the last option is correct.
What is interphase in a cell cycle?
The interphase is the preparatory phase of the cell before going into the division phase (M phase). The first phase is the G1 phase, or first growth phase, in which the cell grows in size. Then the cell enters the synthesis phase, or S phase, where the cell's genetic material, which is DNA, is replicated.
A single DNA molecule duplicates itself, but the two DNA molecules are linked by a single centromere. In synthesis phase the centrosome replicates too, making two centrosomes. Then the cell enters the second growth phase, or G2 phase. Here the cell again grows for the division.
Hence, in the synthesis phase, DNA replication occurs. The last one is correct.
To learn more about the interphase of cell cycle, follow the link
https://brainly.com/question/25282664
#SPJ6
uses strong magnetic fields to show a cross section of
a body part and can show both soft tissues and dense tissues. Cross sections can
be combined by computer to give a complete image of the whole area.
Answer:MRI (magnetic resonance imaging)
Explanation:
This question is from A P E X please solve it if possible will give brainiest to the correct answer and have a great day :)
What is Amitosis cell
( direct cell) division?
Answer:
It is cell proliferation that does not occur by mitosis, the mechanism usually identified as essential for cell division in eukaryotes.
Explanation:
what body systems ate most pikely involved in sensing and responding to a sharp object
Answer:
The nervous system, the integumentary system, the muscular system (and the skeletal system) are all involved in responding to a sharp object.
Explanation:
A fossil that forms when the hard parts, I.e bones, wood, etc.., are turned into stone
A: index fossils
B: mold and cast
C: petrified fossils
D: trace fossils
Answer:
C: Petrified Fossils or B: Mold and Cast
Explanation:
Which are examples of harmful mutations? Check all that apply.
Answer:
Harmful Mutations A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A... Cancer is a disease in which cells grow out of control and form abnormal masses of cells.Explanation:
Answer:
Harmful Mutations A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A... Cancer is a disease in which cells grow out of control and form abnormal masses of cells.Explanation:
Explanation:
The process of meiosis does all of the following except:
Goes through two rounds of division.
Forms sex cells or spores.
Results in four unique haploid cells.
Produces two genetically identical cells.
Answer:
The last one does not happen meiosis create four genetically different haploid cells
Meiosis, on the other hand, creates four distinct daughter cells, each of which has half as many chromosomes as the parent cell. Thus, option D is correct.
What are the advantages of meiosis?Meiosis is crucial for three reasons: it promotes genetic diversity, sexual reproduction of diploid species, and the correction of genetic flaws.
A parent cell undergoes mitosis, which creates two identical daughter cells with the same number of chromosomes.
Genotypic diversity is produced, and appropriate homologous chromosomal segregation is ensured via meiotic crossing over.
Despite these functions, very little is known about the genetic and population genetic mechanisms that resulted in the evolution of species-specific variations in recombination rates.
Therefore, process of meiosis produces two genetically identical cells.
Learn more about meiosis here:
https://brainly.com/question/15060104
#SPJ2
Which would be an activity conducted by a biologist?
Answer:
well the answer would be describe the behavior of brown bats
Explanation:
I've had this question before.
You didn't exactly put the choices down but sorry if this is incorrect because this was correct for me!
What is the name of the process that plants use to remove carbon from the atmosphere?
Photosynthesis
Because they use carbon in photosynthesis and hence they need it. So, they take it from atmosphere.
6CO2 + 6H2O → C6H12O6 + 6O2
Question 8 of 20:
Select the best answer for the question.
The honeycomb-like appearance of this sandstone is a result of
A. salt weathering.
B. oxidation.
C. hydrolysis.
D. frost wedging.
Answer:
Its Salt weathering
Explanation:
Salt waethering causes those honeycomb holes.
Answer:
a
Explanation:
(06.02 MC) Which of the following correctly explains the role of antibiotics in the human body? (2 points) a They break down damaging toxins created by bacteria. b They increase the number of white blood cells in the blood. c They rupture the cell wall or prevent protein synthesis in bacteria. d They reduce the effects of fever, swelling, and inflammation in the body.
Answer:
The beneficial role of antibiotics in the human body is given because they produce rupture the cell wall or prevent protein synthesis in bacteria.
Explanation:
Antibiotics are a group of drugs that fight bacteria, eliminating them, to cure infectious diseases.
The mechanisms of action of antibiotics aim to break the bacterial protection or interfere with their vital functions to make them unviable:
Destruction of the bacterial wall or membrane. Interference with protein synthesis. Inhibition of the synthesis of nucleic acids.In general, the effects of antibiotics on bacteria are to rupture the cell wall or prevent protein synthesis. Through these mechanisms, antibiotics eliminate and prevent the reproduction of pathogenic bacteria, thus eliminating the infections they produce.
The other options are not correct because:
a. Breaking down damaging toxins created by bacteria is an anti-toxin function.
b. Antibiotics do not increase the number of white blood cells in the blood.
d. Reduction of the effects of fever, swelling, and inflammation in the body is a function of antipyretics and anti-inflammatories.
Answer:
They rupture the cell wall or prevent protein synthesis in bacteria.
Explanation:
Trust me I took the test.
What do dermal tissues in plants do
Answer:
The dermal tissue system protects the soft tissues of plants and controls interactions with the plants' surroundings. The epidermis is a dermal tissue that is usually a single layer of cells covering the younger parts of a plant. It secretes a waxy layer called the cuticle that inhibits water loss.
Primary dermal tissues, called epidermis, make up the outer layer of all plant organs (e.g., stems, roots, leaves, flowers). They help deter excess water loss and invasion by insects and microorganisms.
(hope this helps ^^)
Photosynthetic pigments can be separated using a technique
called paper chromatography. Which of the following
statements is false regarding this technique?
O A solvent is needed to move the molecules up the
chromatography paper.
Water was used as the solvent to separate the various pigments.
The smaller molecules moved faster and further up the
chromatography paper after a certain amount of time
The paper chromatography can be used to separate all
photosynthetic pigments not just chlorophyll.
Energy you get from eating an apple
A chemical
B sound
C. electrical
D. light
Answer:
a
Explanation:
cause apple not get sound electrical or light energy
Answer:
A chemical
Explanation:
when you eat an apple: The carbohydrate breaks down into a sugar called glucose and enters your bloodstream (where it's termed “blood sugar”). That sugar travels to your cells, where it's turned into energy for your body.
An apple doesn't produce sound, electrical or light energy therefore the answer is chemical energy
Which condition leads to a slower rate of weathering?
Answer:
High temperature conditions lead to a slower rate of weathering.
Answer:
High temperatures
Explanation:
multiple choice
click all that apply
Answer:
change their activity (turning on or off)changing the association with other proteinschanging the localization in the cellExplanation:
Phosphorylation is an example of a post-translational modification of a protein. These modifications are covalently attached to the protein and can have significant effects on its function.
These affects include altering its activity, its binding to other proteins, and where it is found in the cell.
However, post-translational modifications do not affect the amino acid sequence of the protein.
What would happen to an animal cell with an internal salt concentration of 10% if it were placed in a salt solution with a concentration of 30%?
O The water would move out of the cell and the cell would decrease in size.
O The water would move into the cell and the cell would increase in size.
O The salt would move into the cell and the cell would increase in size.
O The salt would move out of the cell and the cell would decrease in size..
Answer:
The water would move out of the cell and the cell would decrease in size.
Explanation:
This question is depicting OSMOSIS, which is the movement of water from a region of high concentration (low solute concentration) to a region of low concentration (high solute concentration) across a semi-permeable membrane. This movement is caused when a concentration gradient forms between the two sides of the membrane.
In this case, an animal cell contains an internal salt concentration of 10% while the salt solution has a concentration of 30%. This means that the animal cell is hypotonic (contains high water concentration) to the salt solution, hence, water would move out of the cell and the cell would decrease in size
Which of the following correctly identifies the most productive layer of a soil profile?
Plzzzzz helppppp meeee
Answer:
B
Explanation:
The answer is B :)
The time it takes for an animal to metabolize a drug to a non-detectable levels could be ____ than that of the withdrawal period 
A:Longer
B:Shorter
C:Same time
The time it takes for an animal to metabolize a drug to a non-detectable levels could belongerthan that of the withdrawal period. Hence the correct option is A.
The metabolism of a drug refers to the process by which the body breaks down and eliminates the drug from the system. The withdrawal period is the time required after administering a drug during which the animal must not be slaughtered for human consumption to ensure that no residues of the drug are present in the edible tissues.
There are several factors that can influence the metabolism of a drug in animals, such as the drug's chemical properties, the animal's species, age, health status, and metabolic rate. Some drugs may be metabolized relatively quickly, while others may take longer to be completely eliminated from the system.
Hence the correct option is A.
To know more about drug here
https://brainly.com/question/30796747
#SPJ2
How many gigatonnes of carbon are stored in each of the following locations?
(a) The atmosphere
(b) Dissolved as organic carbon in the upper levels of the ocean
(c) Organic matter in the soil
(d) Approximately how much
carbon is in Coal compared
to soil and organic matter
a)121 million gigatons or 121 million billion metric tons" of carbon).
B)The ocean, with around 38,000 gigatons
c)60 gigatons of carbon
Describe an environmental factor that could influence natural selection and increase genetic diversity.
Answer:
Explanation:
Environmental factors can influence natural selection because they can increase or decrease. ...
An increase in food and a decrease in predators would most likely genetic variation in a population. ...
In a few generations, this population of beetles changed.
1. When a bridge-like structure forms between bacteria and genetic material is exchanged, bacteria are reproducing through which process?
A. Binary fission
B. Transformation
C. Transduction
D. Conjugation
Answer:
D. Conjugation
Explanation:
Bacterial conjugation is the transfer of genetic material between Bacterial cell by direct cell-to-cell or by bridge like connection between two cells.
The process in which the formation of a bridge-like structure takes place between bacteria to exchange genetic material is known as conjugation and thus option D is correct.
Bacteria is a prokaryotic cell and it has developed various methods for the purpose of genetic recombination. Genetic recombination is significant for genetic diversity. The 3 most common methods used by bacteria for the diversification of their DNA are namely Transduction, Transformation, and Conjugation.
The Conjugation process is explained as follows:
The Conjugation process in Bacteria is explained as the genetic material transfer between bacterial cells by direct contact between cells or by a connection formed by a bridge-like structure between the cells. The pilus plays a significant role in forming a connection between 2 cells. With the help of the formed contact, the plasmid can be able to transfer its own copy to the recipient bacterial cell which results in exchanging of genetic material.Thus, we can conclude that the conjugation process in bacteria can cause the formation of a bridge-like structure to exchange genetic material and option D is the correct answer.
Learn more about bacterial reproduction here:
https://brainly.com/question/2495426
Can someone please help me with these 2 questions? ILL GIVE BRAINLIEST
Answer:
1: The higher the force applied to the ball, the harder to make a home run because of the third law: every action has a reaction, the reaction is absorbed by the bat.
2:Same equation: F=MA from the second law, if the ball has a higher mass, it will have a higher force.
Explanation:
The third rule, which states that every action has a response, which is absorbed by the bat, makes it tougher to hit a home run the more power is given to the ball.
Explain Newton's law.Newton's laws of motion are three fundamental physical laws that describe the behavior of objects in motion and how they interact with forces. The laws were first published by Sir Isaac Newton in 1687.
Law of Force and Acceleration - The acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to its mass. This law is often expressed as F=ma, where F is the net force acting on an object, m is the mass of the object, and a is the acceleration of the object.
Law of Action and Reaction - For every action, there is an equal and opposite reaction. This law states that when one object exerts a force on another object, the second object exerts an equal and opposite force on the first object.
For more details regarding Newton's law, visit:
https://brainly.com/question/28786939
#SPJ2
Can someone help me?
Answer:
B
Explanation:
It kind of like a shield for the cell. It controls what goes in and what comes out!
I hope this helps!
During ______ oxygen defuses into a cell trough the cell membranes.??
Answer:
diffusion.
Explanation:
i answered because i need points.
What is the definition of sex for animals
Answer: Bestiality is a word describing sex between a human and an animal. There are few things stranger or more repulsive than bestiality.
Explanation:
DUE NOW PLEASE HELP ME!!!!! 10 POINTS