Answer:
No.
Explanation:
No, hand-crank flashlight would not be a good energy system for the rescue workers because the light turns on by applying muscle force on the hand-crank flashlight and after that, the device convert muscle force into electric energy and the light turns on and we know that the rescue worker have a tough job which requires both hands so this hand-crank flashlight is not useful to him.
What is a function of the respiratory system?
Answer:
The respiratory system's main purpose is to move fresh air into your body and moving waste gasses out (like carbon dioxide when you breathe out)
Which one is the correct equation for calculating density? *
Density - Mass / Volume
Density - Mass / Weight
Density - Volume / Mass
Density = Volume / Weight
Answer: Density=Mass/Volume
Explanation:
Answer:
[tex]density = \frac{mass}{volume} [/tex]
explanation :
here some examples
the mass of 20 cm³ of mercury is 272g. calculate it density of mercury.
[tex]density \\ = \frac{mass}{volume} = \frac{272g}{ {20cm}^{3} } [/tex]
answer :-
[tex] = 13.6g \: {cm}^{ - 3} [/tex]
PLEASE HELP -- Imagine protein X, destined to span the plasma membrane. Assume that the mRNA carrying the genetic message for protein X has already been translated by ribosomes in a cell culture. If you fractionate the cells, in which fraction would you find protein X? Explain by describing its transit through the cell.
Answer:
Protein X would be ultimately present in the subcellular fraction containing membrane fragments
Explanation:
It is possible to trace the synthesis and transport of a membrane protein by the following steps:
1- The amino acids of the membrane protein are joined together in the ribosome to form a polypeptide chain (in this case, the protein X).
2- A signal sequence of the growing polypeptide produces the binding of the ribosome to the membrane of the endoplasmic reticulum (ER) and the insertion of this polypeptide chain into the ER.
3-The protein is released into a vesicle from the ER to be exported to the Golgi complex.
4- The membrane protein is transported by the Golgi complex to the cell membrane by the formation of a secretory vesicle that fuses with the plasma membrane, thus being finally embedded in the lipid bilayer.
Protein X should be present in the subcellular fraction that comprise of membrane fragments
The fraction that should be measured the protein X:
Here the synthesis should be traced and the membrane protein transport should be applied by using the following steps:
Here the amino acids of the membrane protein should be connected together so that the polypeptide chain should be created. A signal sequence with respect to the polypeptide should be grown that generated the ribosome binding. Now the protein should be relased into the vesicle. At last, the protein of the membrane should be transported to the cell membrane.Learn more about cell here: https://brainly.com/question/13250146
Which of the following describes what might happen with a sudden increase in precipitation in the grassland biome? (4 points)
a
Rise in drought-tolerant plants
b
Salt and sediment deposition
c
Increase in plant and animal diversity
d
Nutrient loss and soil erosion
Increase in plant and animal diversity describes what might happen with a sudden increase in precipitation in the grassland biome. Therefore, the correct option is C.
What is precipitation?Precipitation is the phenomenon in which condensed water vapors falls on the earth's surface under the influence of gravity.
A sudden increase in precipitation in the grassland biome can provide more water for plants and support their growth, which can lead to an increase in plant productivity and diversity. This in turn can provide more food and habitat for animals, leading to an increase in animal diversity as well.
While there may be some nutrient loss and soil erosion as a result of increased runoff, the overall effect on the ecosystem is typically positive in terms of increased biodiversity. Salt and sediment deposition are not typically associated with an increase in precipitation in the grassland biome. Therefore, the correct option is C.
Learn more about precipitation, here:
https://brainly.com/question/29762381
#SPJ2
Another students says that the earth’s magnetic poles have flipped many times in the past. How would you evaluate their statement?
Question 18 options:
This is a true statement.
This false because the magnetic field is fixed and cannot change.
This is false because a compass always points at the true North Pole.
This is false because the magnetic field has only flipped once.
Answer:
True
Explanation:
As a matter of geological record, the Earth's magnetic field has undergone numerous reversals of polarity. We can see this in the magnetic patterns found in volcanic rocks, especially those recovered from the ocean floors. In the last 10 million years, there have been, on average, 4 or 5 reversals per million years.
Electricity is created by the movement of A protons
B atoms
C neutrons
D electrons
Answer:
b=atoms
Explanation:
can anyone give me these two answers please i’ll give u 15 points
Answer:25%
Explanation:
If we were measuring the mass of Professor Tesfay, the most appropriate unit to use would be
Answer:
kilograms
Explanation:
That's how people weigh others in the other countries
Why would a plant cell not burst while an animal cell would undergo cytolysis in a hypotonic solution?
The plant cell has a large central vacuole and creates a stronger exterior.
The plant cell has a rigid cell wall and the pressure from the central vacuoles causes the stiffness of the plant and animal cells do not have a cell wall therefore the boundary of the cell is weaker.
The plant cell is stronger because it has the chloroplast and causes a strong boundary that support the cell due to the glucose that is made from the process of photosynthesis.
Explanation:
The plant cell has a large central vacuole and creates a stronger exterior.
The plant cell has a rigid cell wall and the pressure from the central vacuoles causes the stiffness of the plant and animal cells do not have a cell wall therefore the boundary of the cell is weaker.
The plant cell is stronger because it has the chloroplast and causes a strong boundary that support the cell due to the glucose that is made from the process of photosynthesis.
2. Examine the arm bones of the two skeletons. Was Grandmother right- or left-handed? How
about Grandfather?
Answer:
He looks ambidextrous but he may also be right handed due to the slight more bone on his right arm.
Explanation:
Its a little hard to tell, my guess is that he was ambidextrous, but his right arm does look slightly more dominant so really it may be his right arm.
What are the reactions of the first stage of photosynthesis called?
____-_________
Answer:
light-dependent reactions or light reactions
Jasmine and Marcus are at the park, and Jasmine makes the following statements. Which of them is an inference?
O The leaves are green.
O The flowers are breathtaking.
O The plant is producing oxygen.
The bush has thorns.
Do multicellular organisms GROW? Do multicellular organisms DEVELOP
Answer:
It has physically increased in size. Often, growth of a multicellular organism occurs as more cells are created. In unicellular organisms (like bacteria), growth still occurs. ... For this reason, most biologists will tell you that development only occurs in multicellular organisms, not in unicellular ones.
No one ever helps me it would be nice if someone did , please give me the correct answer it’s easy :(
Answer: C
Explanation: bc the fertilizer is the toxic chemical
Answer:
it is most likely C, all the other choices seem redundant
Explanation:
What molecule has a r group
Answer:
Amino acids
Explanation:
can you help me with this??
Answer:
Its between the 3rd and fourth but i think its the 3rd
Explanation:
Please Help, I Am Very Confused By This Question. Photos Are Linked!
Is it actually possible for someone to have superhuman abilities?
Answer:
well I mean it kind of is, we could take genes from certain things and possibly add them to humans in the future and make us stronger or stuff like that...
Animal cells store extra glucose in the form of glycogen. Which molecule do plants use to store extra glucose?
A. glycogen
B. baleen
C. myosin
D. starch
Answer:
The Answer is Glycogen
Explanation:
It's Glycogen because Glycogen is a polysaccharide of glucose its structure allows it to pack compactly, so more of it can be stored in cells for later use.
how do you clear your notifications.
2 Co + 3 H2O → Co2O3 + 3 H2
List all of the elements in this equation
Important facts about Claudius Ptolemy
what is the best description of the peidmont region of nourth carolina
What two parts of a nucleotide do not change throughout the structure of DNA?
Answer:
The second portion of the nucleotide is the sugar. Regardless of the nucleotide, the sugar is always the same. The difference is between DNA and RNA.
Explanation:
thanks me and follow me
Five-carbon sugar (deoxyribose sugar) and phosphate moiety are the two parts of a nucleotide which do not change throughout the structure of DNA.
What are Nucleotides?Nucleotides are the organic molecules which are consisting of a nucleoside molecule and a phosphate moiety. They serve as the monomeric units of the nucleic acid polymers- deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), both of which are the essential biomolecules within all the different life-forms on the Earth.
Nucleosides are made up of nitrogenous bases and pentose sugar. There are changes at the nitrogenous bases in the different nucleoside molecules however, there are no changes in the pentose sugar and the phosphate moiety of the molecule.
Learn more about Nucleotides here:
https://brainly.com/question/30299889
#SPJ6
If plant has the same amount of sunlight but less water, then the process of glucose would A- increase, B-decrease, C- stay the same
What is the law of conservation of matter? I
Answer:
Matter can neither be created nor destroyed
Explanation:
Answer:that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change
Explanation:
What is an example of ionization?
A. vegetable oil dissolving in water
B. table sugar dissolving in water
C. table salt dissolving in water
D. hydrogen chloride dissolving in water
Answer:
well.. I apologize if I'm wrong but I think it'd be C because ionization is when something basically can go into water and loose part of its' substance to become apart of the water and salt pretty much dissolves completely in water lol
Answer:
The answer is B
Explanation:
please answer this for me
Answer:
d
Explanation:
is a large organelle that stores the cell's DNA
Answer:
d. nucleus
Explanation:
nucleus is a large organelle that stores the cell's DNA
What is the volume of a cube with a length of 3cm an a height of 4cm an a width of 10cm
Answer:
120 cm
Explanation:
volume is length x width x height so 3 x 4 is 12 and 12 x 10 is 120cm
Answer:
120 cm^3
Explanation:
V= width x length x height
3 x 4 x 10 = 120
and when you multiply centimeters,
cm x cm = cm^2
cm x cm x cm = cm^3
Hope this helps :)
Nucleic Acids are 1 of the 4 types of Biomolecules - - the others being Proteins, Carbohydrates and Lipids.
True
False
Answer:
True.
Explanation:
The four major types of biomolecules are carbohydrates, lipids, nucleic acids, and proteins. Portion of polynucleotide chain of deoxyribonucleic acid (DNA).
which example involves a cell membrane receiving and sending messages
A. A large fish chasing its prey in the sea
B. A protein forming a channel for an ion
C. A water molecule moving inside a cell
D. A tubeworm retreating from a predator
Answer: a tube worm retreating from a predator (a.p.e.x.)
Explanation:
Answer:
c should be your answer
Explanation: