Answer:
Here I hope this can help you with your question! :)
Explanation:
You might be travelling with other astronauts in a journey that will take between seven and 12 months, packed in a tight space. So you’ll need to stretch and probably find a way to have part of the spacecraft spinning to create artificial gravity. Having no gravity for a long time can cause a lot of painful health problems for astronauts. Then there’s the powerful cosmic radiation that comes mostly from our Sun. It can damage electronic equipment on board and create health problems for the crew. You and the crew will have to solve these problems on your own. The atmosphere is not breathable: it is only 1% the thickness of our atmosphere, mostly made of carbon dioxide, argon, and nitrogen with only a small amount of oxygen. Growing plants on Mars is not going to be easy. The soil is really salty and acidic. It is still unclear if we should bring bacteria to Mars to help plants grow (as they do on Earth). Finally, I would say any mistake in flight or during the exploration can hurt or kill you. The room for error is really narrow. Why on Earth would you engage in such a dangerous, life-threatening endeavour? I guess the answer lies in what has made humans explore throughout the centuries. We are always looking for the next frontier.
Answer:
- Travelling from Earth to mass requires a greater magnitude of escape velocity in order to overcome the Earth's gravitational attraction.
- Travelling to Mars is a great distance which is approximately the twice of Earth's distance from the sun (approximately 3.0×10^11 m), hence the Traveller has a possibility of not reaching the destination.
- Travelling to Mars requires a skilled Traveller and experienced, yet those travellers are scarce allover the World.
- It is also very expensive.
- Mars has a different and a greater gravitational attraction than that of the earth, hence a person of earth may not cope with it.
-Mars is very hot than Earth, hence the living on it is affected by the climatic diversion
Which type of respiration is more efficient at producing ATP?
Answer:
Aerobic respiration produces much more ATP than anaerobic respiration. Anaerobic respiration occurs more quickly than aerobic respiration. hope this helps out a little
a reactant in cellular respiration
Answer:
Oxygen or Glucose
Explanation:
Oxygen and glucose are both reactents in cellular respiration.
Normally organisms undergo _____ to make usable energy from glucose in the presence of oxygen. However, ____ allows some organisms to generate energy in areas where there is no oxygen.
1. Anaerobic respiration, Aerobic Respiration
2. Anaerobic Respiration, Photorespiration
3. Photosynthesis, Glycolysis
4. Aerobic Respiration, Anaerobic Respiration
Answer:
4
Explanation:
aerobic respiration is respiration in the presence of oxygen and anaerobic respiration is repiration wirhout the presence of oxygen.
Fatima is a 4-year-old girl. How many teeth is she likely to have
The common 4 year old has 20 teeth.
hope this helps ^^
Answer:
20 teeth, I believe
Explanation:
Hope this helps :)
Where does the oxygen released during photosynthesis come from
Answer:
Oxygen liberated during photosynthesis comes from the splitting or hydrolysis of water in the green plants. Cornelius van Niel experimentally proved for the first time that the oxygen liberated during photosynthesis comes from water and not from carbon dioxide.
Answer:
Oxygen liberated during photosynthesis comes from the splitting or hydrolysis of water in the green plants.
Oxygen is just a by product of this splitting, and will be removed from the plant.
it was proven by Cornelius Van Niel that oxygen liberated during photosynthesis comes from water not carbon dioxide
answers
1.only type ab
2.types A,B,AB,and O
3.only types A and B
4.only types A,B and O
Answer: Ignoring the I's which make no sense. your answer should be C
Explanation:
Crossing-over rarely occurs in mitosis, unlike meiosis because _______________ do not form during mitosis.
Answer:
Non sister chromatides
Explanation:
what is the second box
Answer:
its the base pair. and the first box is sugar-phosphate backbone
Explanation:
__________
Which describes a protein? A. Forms an important part of cell membranes. B. Provides the greatest amount of energy per gram. C. Plays an important role in chemical reactions in cells. D. Supports internal organs and insulates the body
Answer:
I would choose A for answer
Glucose molecules contain stored energy for plants. Glucose is made from carbon dioxide and water molecules during photosynthesis. What kind of energy do plants use to make glucose molecules? A Electrical B Sound C Light D Kinetic
Answer:
The correct answer is - C. light.
Explanation:
In plants, glucose is formed or produces by the process called photosynthesis, a process that uses light energy to produce glucose with the help of carbon dioxide and water.
In this process, light energy is converted into chemical energy stored in glucose or sugars. The process involves light energy, CO2, and water and produces, glucose, and oxygen as a by-product.
please help me!!! i would really appreciate it
Answer:
A- They will no longer grow thick coats of fur in the winter.
WILL GIVE 20 POINTS
Different types of mutations can occur in DNA. If a strand of DNA GACTAGCAC becomes GACTAAGCAC what type of mutation has occurred?
A. a silent mutation results in the insertion of a different amino acid.
B. a substitution occurs with the adenine bases.
C. a deletion of a cytosine base occurs.
D. a base is inserted into one strand of the DNA.
How many atoms of carbon, hydrogen, and oxygen are there in the reactants of photosynthesis?
Answer:
The reactants have one carbon atom, four hydrogen atoms, and four oxygen atoms. IN HYDROGEN ATOMS It takes six atoms of carbon (C) and twelve atoms of hydrogen (H) to make one molecule of glucose (C6H12O6). These atoms come from carbon dioxide (CO2) and water (H2O). IN OXGYEN It takes six atoms of carbon (C), six atoms of oxygen (O) and twelve atoms of hydrogen (H) to make one molecule of glucose (C6H12O6).
In photosynthesis, the reactants have one carbon atom, four hydrogen atoms, and four oxygen atoms.
What do you mean by photosynthesis?Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.
Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants. After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.
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Describe three other features of a bacterial cell.
Answer:
hope it helped
Explanation:
Bacteria are like eukaryotic cells in that they have cytoplasm, ribosomes, and a plasma membrane. Features that distinguish a bacterial cell from a eukaryotic cell include the circular DNA of the nucleoid, the lack of membrane-bound organelles, the cell wall of peptidoglycan, and flagella.
The features of a bacterial cell are the following:
Bacteria are a large group of prokaryotic microorganisms (devoid of cell nuclei) of various possible shapes and sizes.
They are essential in the decomposition processes of organic matter, necessary for the recycling of elements such as carbon or nitrogen.
They reproduce quickly and by asexual procedures, which consist of the replication of the progenitor cell in two exactly equal to it (binary fission).They are made up of a single cell without a cell nucleus, but with a nucleoid (an irregular region where the circular DNA of prokaryotes is found).They have a peptidoglycan cell wall that covers the cell outside the plasma membrane.Scattered throughout the bacterial cytoplasm are ribosomes (in which protein synthesis takes place) and there are also often plasmids (small non-chromosomal DNA molecules).Some bacterial cell also have capsules, a rigid protective structure that is outside the cell wall and flagella to move (if they are mobile).Therefore, we can conclude that bacteria are a large group of prokaryotic microorganisms (devoid of cell nuclei) of various possible shapes and sizes.
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What happens to the force of gravity on a person as he gets farther away
from Earth?
Answer:
As you move away from the Earth, the pull of Earth's gravity weakens. ... The bigger the object, the stronger the force of gravity it exerts.
Answer:
This force of gravitational attraction is directly dependent upon the masses of both objects and inversely proportional to the square of the distance that separates their centers. This means that as you move away from an object the gravitational force decreases.
Explanation:
Sorry if its hard to understand, i kinda get deep in the awnswer's but
Hope this helps!
Which of the following would be the correct amino acid sequence for the following mRNA sequence: UUU UAC AUA?
Explanation:
AaaaaaaaaaaaAaaaaaaaaaaa
in few generations this population of Beatles changed. Which is the most likely explanation for the change?
Answer: D
Explanation: because they will breed and soon all of them will be a different color resulting in the old color bugs dyeing off
What functions are performed by the cerebellum?
balance
visual recognition
posture
regulation of organs
smooth movement
Answer:
posture
smooth movement
Answer:
balance
posture
smooth movement
Explanation:
Where is the active site located on the enzyme?
Answer:
The active site located in a deep tunnel within the enzyme, or between the interfaces of multimeric enzymes.
true or false: the fossils record cannot help us understand the transition between organisms
Answer:
False
Explanation:
Because it was correct
It is best to say that marine debris _______.
a.
is a hazard to marine animals
b.
degrading ocean health
c.
a pervasive, global pollution problem
d.
all of the above
Answer:
D all of the above
Explanation:on edgenudy
as cells undergo cellular respiration, what products are produced, and how are they released from the body
Answer:
The cells reproduce The products of cellular respiration are carbon dioxide and water. Carbon dioxide and there released by being transported from your mitochondria out of your cell, to your red blood cells, and back to your lungs to be exhaled
Explanation:
Hope this helped :D
The products that are produced during cellular respiration are carbon dioxide and water. It uses oxygen as a reactant.
Cellular respiration:The process by which organisms take up oxygen and glucose as food molecules and then convert the energy for various activities leads to the formation of waste products like carbon dioxide and water.
This process breaks down sugar in the presence of oxygen to release energy.
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In the sample of water, there are 100 atoms of oxygen and 200 atoms of hydrogen. How will the mass of oxygen compare to the mass of hydrogen?
Answer:
The ratio of the mass of an oxygen atom to the mass of a hydrogen atom is therefore approximately 16:1. If we have 2 atoms of each element, the ratio of their masses is approximately 32:2, which reduces to 16:1—the same ratio.
The mass of oxygen compared to the mass of hydrogen is approximately 16:1.
What is a chemical reaction?
There are several types of chemical reactions depending on the reaction mechanisms: combination, single-displacement, double-displacement, combustion, decomposition, combustion and redox reactions.
Thus, 16:1 is the answer.
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What primary method does the cell employ to ensure gene expression only occurs when necessary?
Limited amounts of specific DNA
Phosphorylation cascade with multiple steps
Receptors that only fit specific hormones
Unique transcription factors made of carbohydrates
Answer:
Unique transcription factors made of carbohydrates
Explanation:
Gene expression refers to the way by which the genes which contain hereditary materials in the cells are converted to certain proteins. Gene expression is regulated to avoid the wastage of useful energy. Transcription allows the copying of genetic information from the DNA to the RNA.
Transcription factors can activate or deactivate a gene thus hindering its expression. Unique transcription factors help to regulate gene expression.
Answer: receptors that only fit specific hormones
Type in the word healthy if you believe the following observations indicate a healthy aquatic ecosystem or type in the word unhealthy if you believe the following observations indicates an unhealthy aquatic ecosystem.
A hydroelectric dam has heated a nearby body of water.
Answer:
Not Healthy
Explanation:
Because the Fact that you said "aquatic ecosystem" changes the statement. Even though that this dam is hydroelectric, It doesn't benefit Aquatic life very much. Garbage does not come from electricity. No matter how it is made. You may get toxic gases, But not garbage. The warm water can kill the fish who may need a stable condition if no mutations occur. It can attract new praetors or fungi also.
Which statement accurately describes the energy needs for cellular respiration and photosynthesis?
A. Solar energy is needed for cellular respiration but not for photosynthesis.
B. Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration
C.Chemical energy in the form of glucose is needed for photosynthesis, and solar energy is needed for cellular respiration.
D. Chemical energy in the form of glucose is needed for both cellular respiration and photosynthesis,
Answer:
Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration.
How is fitness related to genes?
a. Animals with higher fitness have a better chance of
passing their genes on to the next generation.
b Animals with higher fitness make better and more
useful genes.
c Animals with lower fitness have a better chance of
passing their genes on to the next generation.
Need a Hint?
d. Animals with higher fitness use their genes more
efficiently.
Answer:
b
Explanation:
Genes passing to the next and third generation
What best explains why a person can become sunburned by spending too much time at the beach?
Sunlight is an electromagnetic wave that gains energy as it travels through air to reach the person.
Sunlight is an electromagnetic wave carrying energy that is absorbed by the skin.
O Sunlight is a mechanical wave that vibrates the skin particles to produce heat.
O Sunlight is a mechanical wave, and its frequency matches the natural frequency of skin to make heat.
Answer:
Sunlight is an electromagnetic wave carrying energy that is absorbed by the skin.
Explanation:
A person can become sunburned as
B. Sunlight is an electromagnetic wave carrying energy that is absorbed by the skin.
Sunlight as an Electromagnetic wave:Sunlight is a portion of the electromagnetic radiation given off by the Sun, in particular infrared, visible, and ultraviolet light. On Earth, sunlight is scattered and filtered through Earth's atmosphere, and is obvious as daylight when the Sun is above the horizon.
Sunlight is an electromagnetic wave that gains energy as it travels through the air to reach the person.
Thus, option B is correct.
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Please help me with question 3 part a . Thank you :))
Answer:
1
Explanation:
1,2,3
(a) The oscilation in the pressure inside arteries and arterioles is called by the cardiac rythm. During ventricular systole the pressure rises and during ventricular diastole it decreases
(b)Because when referring to capliaries there is a smaller diameter in the cross section but the surface is bigger. This means that the pressure decreases and the blood has a steady flow instead of periodic bursts.
What happens as a result of convection currents in the earth's mantals
Answer:
Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions.
Explanation:
Answer: Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions.
Explanation: Think of paper on top of a flat plate. If you move the plate in various directions. The paper will also move, but it could be in the same, side to side or opposite direction the current is moving. When the crust or mantle moves. Stress is released causing earthquakes and volcanos erupting with magma from below the very ground you walk on.