Answer:
A. wind
B. coal
Explanation:
there are two fuels directly produces CO2 but is considered carbon neutral which are wind and coal
a human organ is being prepared for transplant. in what type of solution must it be bathed?
A. A hypertonic solution
B. A hypotonic solution
C. Pure water containing solutes
D. A solution with the same osmolarity as the organ tissue
it must be bathed in a solution with the same osmolarity as the organ tissue.. inorder for it not to gain or lose its solute concentration.
I it is placed in a hypotonic solution it will gain water and eventually burst and if placed in a hypertonic solution it will lose water and shrink.
it must be bathed in solution with the same osmolarity as the organ tissue.
Osmosis allows for the diffusion of water from the region of higher concentration to the region of lower concentration.
Osmolarity measures the amount of solute concentration
For an organ place in a hypertonic solution i.e solution that has a higher solute
organ bathed in a hypertonic solution will continue to absorb in more water which can eventually burst the organ when it is too muchFor organ in hypotonic solution i.e solution that has a lower solute concentration
organ bathed will have to lose more solution because itself has more solute than the solution and can lead to shrinkagebut when the osmolarity is the same the Organ will have the same solute concentration as the solution and will help keep the organ in its original form, it will not absorb or lose any solution.
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Based on your knowledge of the cell structures of living things, what is one reason viruses are not considered alive?
A.They lack cell walls
B.they lack nuclei
C.they lack chroroplast
D.they lack cell membranes
Answer:
What does it mean to be 'alive'? At a basic level, viruses are proteins and genetic material that survive and replicate within their environment, inside another life form. In the absence of their host, viruses are unable to replicate and many are unable to survive for long in the extracellular environment.
Answer:
B
Explanation:
The nuclei is basically like the heart of a cell.
put the microscope on the table with the arm towards you.
Answer:
Gently place the microscope on the lab table with the arm facing you. The microscope's base should be resting evenly on the table, approximately 10 cm from the table's edge. 3. Raise the body tube by turning the coarse adjustment knob until the objective lens is about 2 cm above the opening of the stage.
If a brown-eyed mother and a blue-eyed father have four children, three will probably have brown eyes. What can you conclude from this?
A. Brown eyes are a successive trait
B. Brown eyes are a submissive trait
C. Brown eyes are a recessive trait
D. Brown eyes are a dominant trait
Answer:
D. Brown eyes are a Dominant Trait
Explanation:
What is special about each organism in the ecosystem
Hemolysis is:
O A) when a red blood cell is in a hypertonic solution and the cell ruptures
O B) when a red blood cell is in a hypotonic solution and the cell ruptures
O C) when a red blood cell is in a hypotonic solution and the cell shrinks
O D) when a red blood cell is in a hypertonic solution and the cell shrinks
CAN SOMONE PLEASE HELP ME I ONLY HAVE 1 MIN PLEASE
Answer:
Fibrinogen is the blood clotting protein
A DNA molecule with a total of 1500 nucleotides has 300 cytosines. How many thymines does the DNA molecule have?
The DNA molecules will have 450 thymines if a DNA molecule has a total of 1500nucleotides
A DNA molecule also known as deoxyribonucleic acid is made up of a double helix.
The DNA molecule with a total of 1500 nucleotides will contain 750 cytosine and Thymines and 750 guanines and adenine.
Hence we can have the expression:
C + T = 750
If there are 300 cytosines, hence;
300 + T = 750
T = 750 - 300
T = 450
This shows that the DNA molecules will have 450 thymines
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A manufacturing plant has been found guilty of polluting the nearby river. This is _______ pollution.
Which of the following substances is least likely to diffuse across the phospholipid bilayer of the cell membrane?
A) large hydrophobic molecules B) hydrophobic small molecules
C) carbon dioxide D) small ions
Answer:
Hi, could you answer my question: What is a plan in science for a 6 QWC question?
Explanation:
descibe 3 impact due climate change
Answer:
Ice melting habitat lossHeating and cooling of the earth's atmosphereWhich statement accurately describes dark matter?
It is the same as dark energy.
It is well understood by scientists.
It does not emit electromagnetic radiation.
O It can be observed by shifts in red and blue light.
The third one, it can be observed by shifts in red and blue light
Answer:
3rd one because it is right bule amd red
What does “alkaline” mean?
A.
pH is higher than 7.
B.
pH is lower than 7.
C.
Negative ions.
D.
Non-reactive with other chemicals.
Answer:
PH greater than 7
basic solution
A neighbor administers first aid to a boy who was found in his backyard pool and is not breathing. The neighbor should apply a tourniquet. attempt rescue breathing. perform the Heimlich maneuver. apply a splint
Answer:
attempt rescue breathing
Explanation:
Most species of animals do not
drink milk once they have
reached adulthood. Which of
these is an animal that DOES
continue to drink milk into
adulthood?
A. humans
B. snakes
C. spiders
Answer:
if we don't know anything about animals we can say that snakes and spiders complete itself development in an egg.the possible answer is A
How does the mass of an object hitting you affect the force you feel on the hit? Provide evidence from your life.
Answer:
Momentum is a concept or law that says if you ad speed or mass or both to a given object, the force you receive will be greater. so if a basball, say is coming at you you could easily catch it. But if a bowling ball was coming at you the same speed it would probably nock your head off.
Explanation:
Here is your equation for momentum
P=v*m
where P is momentum, V is velocity and M is mass.
Under dehydration circumstances in the winter, stomata may close to reduce water loss for the tree. Predict what would result from the closing of stomata. es ) A This would provide more water, increasing photosynthesis. B) This would also stop gas exchange and further limit photosynthesis. This would trap the oxygen produced in photosynthesis and kill the plant. D) This would help the needles gather more sunlight energy, increasing photosynthesis. Energy Transfer
Answer:this would also stop gas exchange and further limit photosynthesis
Explanation: did this on USA test prep and got it right
This would also stop gas exchange and further limit photosynthesis. Therefore, option B is correct.
What is the mechanism of opening and closing of stomata?The content of cell sap is reduced as a result of the conversion of the organic acids into starch. This causes water to exit hard cells, and a decline in their turgor causes the stomata to close. Stomata therefore open throughout the day and close at night.
The pH of the guard cells controls stomatal opening, according to the starch sugar interconversion theory of stomatal opening. In neutral or alkaline pH, stomata open. When the guard cells are open during the day and closed at night, they contain starch during the day.
Under dehydration circumstances in the winter, stomata may close to reduce water loss for the tree. This would also stop gas exchange and further limit photosynthesis. Therefore, option B is correct.
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What do organisms do with the products of cellular respiration?
Explanation:
it combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life sustaining activities and discarding
Gametes are ______ They have ______ the number of chromosomes.
1) diploid; double the number of
chromosomes.
2) diploid; half the number of chromosomes.
3) haploid; double half the number of chromosomes.
4) haploid; half the number of chromosomes.
Answer:
4)
Explanation:
Gametes have one haploid (n) genome, which is half of somatic cells, having one diploid (2n) genome combined through fertilization from two haploid (n) gametes.
In humans, gametes have 23 chromosomes, and somatic cells have 23 homologous pairs, which is 46 chromosomes.
Different species have different numbers, but most follow the same pattern.
Question 5 (True/False Worth 1 points)
(02.02 LC)
TRUE OR FLASE QUESTION (WORTH 50 POINTS)
Water takes a longer time to change temperature than alcohol does because water requires a larger amount of heat to be absorbed to cause the change.
()True
Or
()False
Answer:
True
Explanation:
Water freezes faster than alcohol due to lower freezing point.
Water takes less time to freeze than alcohol but can absorb a large amount of heat with only a small change in its temperature. Alcohol has -114.7 degrees Celsius of freezing temperature whereas water has freezing point of 0 degrees Celsius.
The given statement is true. Water freezes faster than alcohol. Due to its lower freezing point than alcohol, water freezes more quickly.
Why water freezes faster than alcohol?Alcohol takes longer to freeze than water, but water can absorb a lot of heat with just a slight change in temperature. Water has a freezing point of zero degrees Celsius, but alcohol has a freezing point of -114.7 degrees Celsius.
Because water molecules must be forced to move more quickly within the water in order for the temperature to rise, water is more able to absorb heat than many other substances. As a result, water freezes more quickly than alcohol.
Therefore, The given statement is true. Water freezes faster than alcohol. Due to its lower freezing point than alcohol, water freezes more quickly.
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Traditional Chinese culture is the general term for national civilization, customs and spirit. The definition of "culture" is often "the benevolent see benevolence, and the wise see wisdom". Simply put, traditional Chinese culture is based on the three schools of Confucianism, Buddhism and Taoism. The three are interdependent, infiltrate and influence each other, and build the whole of Chinese traditional culture. The ideas of these three traditional cultures are collectively called the "Three Religions" in China.
Answer:
Chinese traditional culture
Explanation:
Chinese traditional culture
if bird cannot migrate what it does to survive
Although chickens, chimpanzees, cows, and humans share a gene for insulin, two species are more closely related to one another than the others. Select the correct pair of species. (10 points)
A. chickens and cows
B. chimpanzees and cows
C. chickens and humans
D. chimpanzees and humans
As the rise of humans or the homosapins on the planet the earth was full of creatures from all races and they were located in different habitats and inches.
The rise of man was initiated by the primates and marsupials and these later on lead to the development of monkey like large land animals. The gene of insulin is hared between the man and his processor chimpanzee.Hence the option D is correct.
Learn more about the chimpanzees, cows, and humans who share a gene for insulin.
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What happens in your body if you are exposed to a virus for which you have
been vaccinated?
A. The altered virus recognizes the natural version of the virus and
destroys it.
B. Because the vaccination remains in your body, the altered virus outcompetes the natural version and you do not get sick.
C. The nonspecific immune response recognizes the invading virus and prevents it from entering the body.
D. Memory cells that develop in response to the vaccine recognize
the invading virus and respond quickly to destroy it.
Answer:
Explanation: A
How waste is removed from plant body ?
Answer:
Living organisms sustain life, based on certain life processes. These life processes help to regulate their daily activities. Excretion is one among them. The metabolism takes place in the cells of living organisms resulting in both useful and toxic products. The accumulation of toxins may harm the organism. Thus, the living organisms remove all these metabolic wastes from their body and this process is called excretion. Different organisms follow different modes of excretion. Let’s have a glance at excretion in plants and how excretion in plants is different from that of animals.
Explanation:
I hope you can help buddy (:
Answer:
the excretory organ removes these westes.
this process of removal of metabolic waste from the body is known as excretion
The movement of small organic molecules, electrolytes, vitamins, and water across the digestive epithelium and into the intestinal fluid of the digestive tract is called what then? I can understand if going into the interstitial fluid of the digestive tract that it would be called Absorption; however, what is it called when it moves into the intestinal fluid of the digestive tract?
Answer:
As you have learned, the process of mechanical digestion is relatively simple. It involves the physical breakdown of food but does not alter its chemical makeup. Chemical digestion, on the other hand, is a complex process that reduces food into its chemical building blocks, which are then absorbed to nourish the cells of the body. In this section, you will look more closely at the processes of chemical digestion and absorption.
This diagram identifies the functions of mechanical and chemical digestion and absorption at each organ. Next to each organ, a callout identifies which steps of digestion take place in that particular organ.
Explanation:
PLEASE HELP!!! WILL MARK AS BRAINLIEST!!! D:
A. SICKLE CELL ANEMIA: GENETICS AND EVOLUTION
Circle the mutation in DNA of the sickle-cell beta-globin gene fragment in the table below:
Wild-type beta-globin gene fragment
C A C G T A G A C T G A G G A C T C
Sickle-cell beta-globin gene fragment
C A C G T A G A C T G A G G A C A C
Transcribe beta-globin DNA into mRNA. Note: DNA is already arranged in triplet sets (below).
Translate mRNA codons into amino acids of hemoglobin protein sequence using the chart on page 3.
Wild-type beta-globin gene fragment
C A C G T A G A C T G A G G A C T C
Transcription produces mRNA fragment:
Translation produces wild-type beta-globin polypeptide fragment:
Sickle-cell beta-globin gene fragment
C A C G T A G A C T G A G G A C A C
Transcription produces mRNA fragment:
Translation produces mutant beta-globin polypeptide fragment:
In this example an adenine replaces a thymine. Wild-type mRNA GUGCAUCUGACUCCUGAG/ Protein Val-His-Leu-Thr-Pro-Glu. Mutated mRNA GUGCAUCUGACUCCUGUG/ Protein Val-His-Leu-Thr-Pro-Val.
--------------------------
Mutations are changes that occur in DNI nucleotide sequences that introduce new variants.
There are different types of mutations. In the exposed example, the last thymine from the Wild-type beta-globin gene fragment is replaced by an adenine in the Sickle-cell beta-globin gene fragment. The other bases remain equal.
Wild-type gene fragment ⇒ C A C G T A G A C T G A G G A C T C
Sickle-cell gene fragment ⇒ C A C G T A G A C T G A G G A C A C
Wild-type beta-globin gene fragment
TranscriptionTranscription occurs in the nucleus. In RNA uracil replaces thymine.
While growing mRNA molecule,
adenine pairs uracil, thymine pairs adenine, and guanine pairs cytosine.DNA ⇒ C A C G T A G A C T G A G G A C T C
mRNA ⇒ G U G C A U C U G A C U C C U G A G
TranslationTranslation occurs in the cytosol. mRNA codons codify for amino acids.
Codons have been separated by a space.
mRNA ⇒ G U G C A U C U G A C U C C U G A G
Protein ⇒ Valine - Histidine - Leucine - Threonine - Proline - Glutamine
Sickle-cell beta-globin gene fragment
TranscriptionDNA ⇒ C A C G T A G A C T G A G G A C A C
mRNA ⇒ G U G C A U C U G A C U C C U G U G
Translation
mRNA ⇒ G U G C A U C U G A C U C C U G U G
Protein ⇒ Valine - Histidine - Leucine - Threonine - Proline - Valine
---------------------------------------
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What term can be used to describe all cellular respiration?
Tick one box.
А
Aerobic
B
Endothermic
С
Anaerobic
D
Exothermic
The term that can be used to describe all cellular respiration is Exothermic. Some cellular respiration may be aerobic, some are anaerobic but all the exothermic.
What do you mean by Cellular respiration?Cellular respiration may be defined as the methodology of transforming glucose into a form of energy (ATP) that is useable by cells.
Respiration that occurs in the presence of oxygen is known as aerobic cellular respiration, respiration that occurs in the absence of oxygen is known as anaerobic respiration.
Therefore, the term that can be used to describe all cellular respiration is Exothermic.
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name three reason why blood goes to the lungs
Answer:
Blood without oxygen returns through the veins, to the right side of your heart. From there it is pumped to your lungs so that you can breathe out the carbon dioxide and breathe in more oxygen.
Explanation:
Which description is not a property of an acid?
Sour taste
Slimy Feel
dissolve metals
corrosive
brainliest will be possible
The correct option is C. Slimy feel
When you eat a lemon, you can taste the sourness.
When you have rust, you can acidicly burn it off.
And acid is obviously corrosive, which leaves C- which we know is not a property of acid.
I hope this helps!
Answer:
slimy feel
Explanation: