Answer:
A: osmosis. The egg first expanded because it was placed in a hypertonic solution (sugar water), causing the water to exit the egg to balance the higher concentration of solute outside of the egg. Placing it in fresh water creates a hypotonic environment, thereby causing water to rush back in.
Explanation:
Transposons are movable elements of DNA that insert into new positions within the genome. A transposon may disrupt normal gene function, confer an evolutionary advantage, or have no effect on the organism.
Select all scenarios in which a transposon has positively contributed to the evolution of the host's genome.
a. insertion of a transposon encoding a heat shock protein into the genome of a plant
b. insertion of a transposon into the gene encoding for dystrophin, a protein involved in skeletal movement and cardiac function
c. aquisition of a transposon carrying an adhesin gene into the Lactobacillus casei genome
d. acquisition of a transposon that disrupts
e. an enhancer element of a colorectal cancer tumor‑suppressor gene acquisition of a transposon carrying a tetracycline resistance gene in a bacterium
Answer: Transposons are genomic sequences that can cause or reverse mutations by changing its positions.
Explanation:
a., and c. are the correct options.
The heat shock protein encoded by the transposon will increase the thermotolerance of the transgenic plant. It will also improve it's stress tolerance.
The adhesin genes will enable the bacteria to stick on the walls of the intestinal tract of humans and this will help human body in digestion process.
Which image represents the step in mitosis when chromosomes condense and spindle fibers form?
Answer:
The process you described is called prophase
Explanation:
Since you dId not provide the pictures, this is what it's supposed to look like.
Answer:
A
Explanation:
Where is the brain of a rotifer located?
Answer:
Mastax
Explanation:
Rotifers have a small brain, located just above the mastax, from which a number of nerves extend throughout the body.
Answer:
Just above the mastax
Explanation:
Rotifers have a small brain, located just above the mastax, from which a number of nerves extend throughout the body. The number of nerves varies among species, although the nervous system usually has a simple layout.
Which list of organelles would you associate with an animal cell?
O A cytoplasm, nucleus, cell membrane, large vacuoles
B. cytoplasm, nucleus, endoplasmic reticulum, cell wall
O c. cytoplasm, nucleus, Golgi bodies, cell wall
O D. cytoplasm, nucleus, lysosome, ribosomes
O E. cytoplasm, nucleus, mitochondria, chloroplasts
What is the definition of light-dependent reactions and light independent reactions?
Where would a new star most likely form?
Answer:
Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.
Most galaxies have stars distributed throughout them that are born within dust clouds.
What are stars?Any large, gaseous celestial body that is self-luminous and emits light as a result of its own internal energy sources is a star.
Stars are created when a very huge cloud of gas and dust in space slowly contracts under the force of gravity.
The presence of gas and dust clouds is relatively widespread, and our knowledge of the Milky Way Galaxy's star-forming regions is extensive.
Stars are born within dust clouds and are dispersed throughout the majority of galaxies. Most galaxies have stars distributed throughout them that are born within dust clouds.
The Orion Nebula is a well-known illustration of a dust cloud of this type.
Deep within these clouds, turbulence creates knots with enough mass for the gas and dust to start collapsing under its own gravitational pull.
Thus, this way, the stars are formed.
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14. What takes place in ribosomes?
Answer:
Ribosomes are the sites in a cell in which protein synthesis takes place. ... Within the ribosome, the rrna molecules direct the catalytic steps of protein synthesis the stitching together of amino acids to make a protein molecule. In fact, rrna is sometimes called a ribozyme or catalytic RNA to reflect this function.
Explanation:
The three domains are___.
what are the arguments against regulations aimed at reducing water pollution
Answer:
There are numerous forms of pollution and environmental problems that human beings have been causing since the beginning of the industrial revolution and, in particular, since the second half of the last century. Pollution without borders associated with all human activities and which, along with other serious problems, is degrading all ecosystems and contributing to climate change whose consequences we are already experiencing. The costs of this environmental degradation have not been taken into consideration until recently, but it is beginning to be understood that they must be incorporated in the evaluation of any project; They cannot be “outsourced”, as has been done, because it is absolutely unsustainable.
Explanation:
Answer:
The correct is D
Explanation
I know it is correct because i am doing it.
And i need help for this one
Recycling and composting are actions that individuals can take to __________.
A.
reduce water pollution
B.
reduce the amount of trash in landfills
C.
improve our energy efficiency
D.
reduce air pollution
And can you make me brainliest
Why doesn't being surrounded by gallons of water in a swimming pool cause sodium imbalances and/or water intoxication?
The pool water is isotonic with your internal body fluids.
It is impossible to sweat in a swimming pool; therefore, your body loses no sodium.
Your skin is not as permeable as the lining of your digestive system.
The chlorine in the pool water prevents your body from losing sodium to the surrounding environment, or Swimming in pool water can cause a sodium imbalance; this is why swimming in the ocean is preferable.
Answer:
The correct answer is: Your skin is not as permeable as the lining of your digestive system.
Explanation:
Pool water is mostly composed of water with some chlorine in it. This is why it could never be true that pool water is isotonic with a person's internal fluids, where half of the osmotic pressure is given by sodium. For pool water to be isotonic with our internal body fluids, it should be a 0.9% NaCl solution.
The chloride in the pool water has no special properties that make your body not lose electrolytes.
The reason why swimming in a pool doesn't cause sodium imbalances is because the skin is not as permeable as the lining in our digestive system. We don't absorb water or ions through our skin. The only way we can get more water and electrolytes in our bodies is by ingesting them when drinking water or eating food. Then, our digestive system absorbs it, and after that, the kidneys dispose of the excess water or electrolytes.
Which of the following is true? A b c d
Answer:
C
Explanation:
high fat diet is always bad for the body! it makes you gain weight, it makes you get heart problems, cancer, PCO(in ladies), muscle, bone, neck and back aches and most importantly, it makes your cells insulin-resistant which could cause type 2 diabetes.
if it is unclear or you need more explanation, ask freely. also if the answer was correct, please give me brainliest. I need them!
"list eight details that must be documented when a vaccine is given?"
The sodium-potassium pump is a membrane protein that pumps sodium out of the cell and brings potassium in. It does this against the concentration gradients; in other words, it pushes both molecules from areas of low concentration to areas of already high concentration. What type of transport is this?
a.passive transport, which requires energy
b.passive transport, which does not require energy
c.active transport, which requires energy
d.active transport, which does not require energy
Which of these actions is a sustainable agricultural practice?
A. Growing crops that need less water
B. Importing water from another region
C. Irrigating fields with groundwater
D. Feeding a large population with factory farming
Growing crops that need less water is an action that is a sustainable agricultural practice. Thus, the correct option is A.
What is Sustainable agriculture practice?Sustainable agriculture practice may be defined as those actions which are environmentally favorable, profitable, and significant for communities. It includes the needs of society without compromising the ability for current or future generations.
Importing water from another region provokes maintenance and labor cost. Feeding a large population with factory farming affects the productivity of the crops. Irrigating fields with groundwater utilize more and more water consumption.
Therefore, the correct option for this question is A.
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For question 6 only :)
Answer:
B
Explanation:
Producers are organisms that create food from inorganic matter. The best examples of producers are plants, lichens and algae, which convert water, sunlight and carbon dioxide into carbohydrates. Consumers are organisms that cannot create their food. I think hehe
In 1947, pilot Chuck Yeager became the first person in an airplane to fly faster than the speed of sound. He flew his plane about 12,000 meters above sea level. At that altitude, the speed of sound travels at 290 meters/second. At sea level, the speed of sound is about 340 meters/second. What conclusion can you make from this information?
A The speed of sound does not depend on altitude.
B The speed of sound depends on the type of plane flown.
C As the altitude increases, the speed of sound increases.
D As the altitude increases, the speed of sound decreases.
While looking through a powerful microscope, you notice a type of one-celled organism you have not
seen before. Which of the following would help you classify the organism as a prokaryote or a
eukaryote?
a. Presence of a cell membrane
b. Presence of ribosomes
C. Presence of cilia or flagella
d. Presence of membrane-bound organelles
Answer:
d. Presence of membrane-bound organelles
Explanation:
Living organisms has been classified into prokaryotic or eukaryotic depending on the content of their cell. The basis of classification into prokaryote or eukaryote is the possession or not of a membrane-bound nucleus or organelle.
According to this question where a one-celled organism was seen in a miscrosope, PRESENCE OF MEMBRANE-MEMBRANE-BOUND ORGANELLES is the characteristics that will help in the classification of the organism as a PROKARYOTE OR EUKARYOTE.
Presence of membrane-bound organelles would help classify the organism
as a prokaryote or eukaryote.
Prokaryotes are defined as organism which don't have a true nucleus as a
result of the absence of the nuclear membrane. Eukaryotes on the other
hand have a true nucleus as a result of the presence of the nuclear
membrane.
When viewing a one-celled organism with a microscope, we are able to
classify the organism based on the presence or absence of a membrane-
bound organelle.
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How does the structure of proteins related to their function?
Answer:
Protein function is directly related to the structure of that protein. A protein's specific shape determines its function. If the three-dimensional structure of the protein is altered because of a change in the structure of the amino acids, the protein becomes denatured and does not perform its function as expected.I hope this helpsThe structure of proteins depends upon the sequence of amino acids joined together. The sequence of amino acids changes the function of proteins.
What are proteins?Large, intricate molecules known as proteins play a variety of vital functions in the body. They are crucial for the structure, operation, and control of the body's tissues and organs and carry out the majority of their job inside cells.
The relationship between a protein's structure and function is direct. The function of a protein is determined by its unique form.
The protein becomes denatured and ceases to function as intended if the three-dimensional structure of the protein is altered as a result of a change in the structure of the amino acids.
Therefore, the order in which amino acids are linked together determines how proteins are structured. The order of amino acids alters how proteins work.
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what is the structure of a fatty acid
Answer:
Generally, a fatty acid consists of a straight chain of an even number of carbon atoms, with hydrogen atoms along the length of the chain and at one end of the chain and a carboxyl group (―COOH) at the other end. It is that carboxyl group that makes it an acid (carboxylic acid.
Explanation:
Roots____.
soak up water from the soil
hold the plant in the ground
store food and water
all of the above
All of the above!
Im 100% sure this is correct :)
What form of energy is apded to make photosynthesis happen?
O A. Chemical energy
O B. Solar energy
O C. Electron energy
O D. Proton energy
please help ASAP !!
helppppppp:((((
predict whether a pot of water heated from the top would boil more quickly than a plt of water heated from the bottom. Explain your answer.
Water will boil faster when it is heated from the bottom rather than when it is heated from the top.
The boiling of water occurs due to convection currents. Heavier particles moves from upwards and travels downwards and then they are replaced by lighter particles traveling upwards. This is called convection currents.
As such, water will boil faster when it is heated from the bottom rather than when it is heated from the top.
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25. A student measures the distance from a bridge
to a rock every day for a week
2-
Distance
from
1
Bridge
Meter
O
2
.
3
Time (Days)
What is indicated by the graph of the student's
data?
(1) No change in time or distance took place
(2) As distance decreased, time increased
(3) As distance increased, time decreased
(4) As time increased, distance remained
the same
02
Answer:
(4) As time increased, distance remained
the same
Explanation:
The graph shows that the student measures equal distance everyday from the bridge to the rock for 7 days.
Everyday has an equal distance measured by the student all through the week.
Let's say the point on the vertical axis which represents distance measured is about 1.5 meters. It means that, for day 1, he measures 1.5 meters, day 2, he measured 1.5 meters, by day 3 another 1.5 meters. Same he does for 7 days. For the first 3 days, he would have measured 1.5 m × 3 = 4.5 meters.
This means that, as time (days) increased, distance measured each day remains the same.
What is the purpose of checkpoint proteins? *
Answer:
The key role of checkpoint proteins is to detect DNA damage and send a signal to delay cell cycle advance until the damaged chromosomes are repaired
Explanation:
Which states of matter have no definite shape or volume
Which table correctly identifies the four most abundant elements in biomolecules
Answer:
are hydrogen, oxygen, nitrogen, and carbon,
Explanation:
which together make up over 99% of the mass of most cells. They are the lightest elements capable of forming one, two, three, and four bonds, respectively
The four most abundant elements in biomolecules are hydrogen, oxygen, nitrogen, and carbon,
What are different types of biomolecules ?The basic building blocks of the living organism are called as biomolecules which are Carbohydrates, Proteins, Fats, Nucleic Acids which make the components of a living cell.
Carbohydrates are polyhydroxy aldehydes or ketones collectively called as saccharides, it can be monosaccharide, oligosaccharide and polysaccharides based on the number of sugars in it.
Proteins are polymers of amino acids where number of amino acids are joined by peptide bond to form polypeptide chain which further converted into protein and it can be classified as primary, secondary, tertiary and quaternary protein.
Nucleic acids are up nitrogenous base, sugar and phosphate; It can be up two types namely, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
The nucleic acid carries the genetic information which is transferred from parent to next generation and proteins which express the genetic character by processes of transcription and translation.
Lipids are organic insoluble fat like substance, soluble in organic solvents like oil, they include sterols, fat-soluble vitamins, mono-, di- or triglycerides, phospholipids, etc.
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Chemical break down of food
photosynthesis
oxidation
nitrogen fixation
nutrition
Answer:
photosynthesis
Explanation:
If you are referring to the chemical breakdown of food in PLANTS, not humans, then your answer is photosynthesis.
Hope this helps :)
What might be the result if you shuffle the order of bases in an organism's DNA
molecules?
Answer:
It would have disastrous consequences on the viability of the individual
Explanation:
The genome can be defined as the genetic material of an organism, which is composed of DNA molecules named chromosomes whose building blocks are four different nucleotides: Adenine, Thymine, Cysotcine and Guanine. The order of these nucleotides specifies the information contained in the chromosomes and, ultimately, in the genome. The genes, which are recognized to be the basic units of inheritance, are genetic sequences composed of ordered nucleotides along the chromosomes. During transcription, a gene encodes different RNA codons (for example, start and stop codons) which are specified by the order of the nucleotide sequence. Finally, the order of the RNA codons will be critical to specify the polypeptide chain during the translation from RNA to protein.
Which of the following statements regarding the human
population are TRUE? Select TWO.
SELECT ALL THAT APPLY
The world's population of humans is
increasing.
In every country, the human population is
increasing.
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant
Answer: Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Explanation:
Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
The study of population is called demography.
The correct answer is A and C.
A group of the same species living together and interacting with other species is called a population.
The changes in the population are as follows:-
IncreasingDecreasingNeutralThe population can never be constant. The world's population is increasing every day. The birth rate is higher than the death rate.
But in countries, the population is decreasing because there the birth rate is lesser than the death rate due to which the population is decreasing.
Hence, the correct answer is A and C.
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True or false ? I’ll mark brainliest correct answer
Answer:
False
Explanation:
Abiotic factors are non-living
Biotic factors are living
Answer: false
Explanation: biotic factors are living things, these things listed are non-living things