Answer:
The answer is helium (mixed with oxygen and not just helium)
1 Which human activity has had the least effect
on the biosphere?
(1) agriculture
(2) industry
(3) urban development
(4) aquaculture
Answer:
4
Explanation:
because the ocean dont produce any thing to the earth's biosphere.
which of the following describes a reason for making a prediction when doing a controlled experiment
a. To understand the nature of an experimental subject
b. To provide a context for why a specific question was asked
c. To indicate what specific results will support a hypothesis
d. To identify a useful and reliable source of scientific information
To indicate what specific results will support a hypothesis.
Experiment plays many roles in science. One of its important roles is to test theories and to provide the basis for scientific knowledge.What is hypothesis?A hypothesis is an assumption, an idea that is proposed for the sake of argument so that it can be tested to see if it might be true.In the scientific method, the hypothesis is constructed before any applicable research has been done, apart from a basic background review.To know more about experiment here
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______ breaks down fibrin and restores the fluidity of plasma.
A. Fibrogen
B. Plasminogen
C. Plasmin
D. All of the above
Answer: A. Fibrogen
Explanation: A fluid called serum (plasma minus fibrinogen and prothrombin) is squeezed from the clot. A fibrin clot is present only temporarily. As soon as blood vessel repair is initiated, an enzyme called plasmin destroys the fibrin network and restores the fluidity of the plasma.
Fibrinogen breaks down fibrin and restores the fluidity of plasma, during blood clotting. Hence, option A is correct.
What is the process of blood clotting?Coagulation is the term for the multi-step process that causes blood to clot. Blood binds securely together at the site of an injury when the entire coagulation process is functioning effectively, and bleeding ceases. When you have a bleeding issue, you can't quickly or at all form powerful clots.
Plasma-derived proteins known as blood clotting factors or coagulation factors are used in the coagulation cascade, a sophisticated chemical process. Simply put, the clotting process converts blood at the site of an injury from a liquid to a solid.
The enzyme converts the plasma protein fibrinogen, which is soluble, into fibrin, which is insoluble. Some red blood cells get caught in a net made of fibrin, which is sticky and creates lengthy threads. This creates blood clots. Therefore, option A is correct.
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Which word best describes the author's tone?
O A. joyful
O B. adventurous
O C. humorous
0 D. quiet
Answer:
either joyful or quiet
Explanation:
I'm sorry for this vague answer! But I think both work depending on the situation. Do you have a paragraph or something that goes along with this question?
BRAINLIST to whoever
Which mineral above would be the most difficult to scratch?
cobalt
iron,
Manganese
Vanadium
aluminium
Nitrogen
Answer:
6th one
Explanation:
Nitrogen
HELPPP (30 pointss)
In which physical/mechanical layer does a science student pick up rocks?
-outer Core
-Inner Core
-Mesosphere
-Lithosphere
Answer:
lithosphere
Explanation:
process of elimination
mesosphere is past where planes fly, inner/outer core are towards the center of the earth
Answer: Lithosphere I think
need this question answered ASAP , i will give you brainliest
A graph shows _____ in picture form.
sums
variables
facts
data
information
differences
Which is not a basic function of a cell?
Please help. It's only 3 questions...
1. Translation starts with?
A. DNA
B. mRNA
C. A protein
2. Translation end with?
A.DNA
B. mRNA
C. A protein
3. In your own words, what is the purpose of translation?
Answer:
1. mRNA
2. protein
3. The process of translation occurs to enable the decoding of the mRNA for the reading of the right instructions to produce the right proteins
Explanation:
Hope this helped!
HURRY WILL MARK BRAINLIEST 9. How would the results change if the substances were placed into
honey instead of water? Honey has a density of 1.45 g/mL.
-Cardboard would float in water, but sink in honey.
-Glass would sink in water, but float in honey.
-An apple would float in water, but would sink in honey.
-Dish soap would sink in water, but would float in honey.
what gives a sea squirt it's unique structure and shape?
Answer: cylindrical belly shape
Explanation:
Something that is giving a sea squirt its unique structure and shape is the presence of a cylindrical bell-shaped sac-like body. With that shape and body, there is coming an inhalant and exhalant shiphon-like structures.
All of that is giving a sea squirt its shape and structure.
what is the cause and effect about Expand Upon Freezing? Please help >
Answer:
The expansion of water upon freezing is vital to life on Earth. It is what causes ice to be less dense as a solid than as a liquid. This means that ice floats in liquid water. ... Water freezes when its molecules are no longer moving around enough to break their hydrogen bonds.
Explanation:
Answer:
When water molecules freeze, they form together and make a circle like structure.
Explanation:
Which part of the virus houses the nucleic acid?
a) nucleus
b) capsid
c) nucleoid
d) plasmid
Answer:
The answer is b) capsid.
Explanation:
Answer:
b) capsid
Explanation:
Over years of selective breeding, French bulldogs have developed extremely short snouts and flat faces. These traits, although attractive to the dog owners, can make it difficult for the dogs to breathe.Which of the following processes led to the presence of these traits?
(Choice A)
A
Artificial selection
(Choice B)
B
Natural selection
(Choice C)
C
Environmental selection
(Choice D)
D
Sexual selection
Answer:
Artificial selection
Explanation:
Choice A, artificial selection, led to the presence of these traits in French bulldogs.
What is Artificial selection?Artificial selection, also known as selective breeding, is the process of breeding organisms with desirable traits in order to produce offspring with those traits. In the case of French bulldogs, humans selectively bred dogs with shorter snouts and flatter faces in order to create a breed that was aesthetically pleasing. However, these traits also led to health problems such as difficulty breathing.
Natural selection, on the other hand, is the process by which organisms with advantageous traits are more likely to survive and reproduce, leading to the evolution of those traits in a population.
Environmental selection refers to the process by which the environment favors certain traits over others. Sexual selection is a type of natural selection that occurs when individuals with certain traits are more likely to attract mates and reproduce.
In the case of French bulldogs, these traits were not naturally selected for based on survival advantages, nor were they the result of environmental or sexual selection. Rather, they were artificially selected for by humans, leading to unintended consequences for the dogs' health.
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What is the correct answer is it true
Answer:
1
Explanation:
Answer:
its False because a adduction cant move ones arms away from media
Why wasn’t oxidation type chemical weathering common more than 2 billion years ago
Due to deficiency of Oxygen in atmosphere.
Why is the absence of a cell wall an advantage for animal cells?
Answer:
It is a advantage because the animals can move around freely without escaping
Explanation:
Answer:
Animals do not have cell wall cause they don't need them , cell wall which are found in cell, maintain cell shape almost as if each cell has it's own exoskeleton . this rigidity allows plants to stand upright without the need for bones .
Explanation:
Which phenomenon is the bending of light as it passes from one transparent
substance into another?
a) Speed
b) Refraction
c) Diffraction
d) Interference
please help 50 points. question in pic
The daughter cells that are produced in meiosis are genetically identical? 
True or false
Answer:
True
Explanation:
I hope this helps
Answer: True
Explanation: Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
Floppy ears (e) are recessive to erect ears (E) in rabbits. Predict the possible
outcomes of a cross between two rabbits that are both heterozygous.
O 50% of the offspring will have erect ears and 50% of the offspring will have floppy
ears.
100% of the offspring will have erect ears.
O 25% of the offspring will have erect ears and 75% of the offspring will have floppy
ears.
O 75% of the offspring will have erect ears and 25% of the offspring will have floppy
ears.
Answer:75% of the offspring will have erect ears and 25% of the offspring will have floppy
ears.
Explanation: using the foil method for two heterozygous rabbits Ee x Ee the outcomes would be EE, Ee, eE, ee the capital E would be dominant for 75 % of ears leading to Erect ears.
9. Which statement accurately describes the graph?
A. Reaction 2 occurs faster than Reaction 3 because Reaction 2 requires more energy than Reaction 3.
B. Product B contains more energy at the end of the reaction than reactant A has at the beginning of the
reaction.
C. Reactant A contains more energy at the beginning of the reaction than product C has at the end of the
reaction.
D. The data plotted for Reaction 2 and Reaction 3 indicate a difference in the activation energy of these
reactions.
Answer:
D
Explanation:
Each reaction starts at 0J (i.e. no energy). So, you can eliminate C. and B. simply by comparing the start point (A) to those end points.
Product B does not contain more energy than reactant A because the line falls below the axis (falls below zero). (You can apply this same logic for question C)
A. is incorrect because all the reactions appear to be occurring on the same time scale.
D. is the best answer because activation energy is best identifiable difference between these three reactions. The 'hump' in the graph represents the activation energy. The higher the hump, the higher the energy.
Let me know if anything sounds wrong! Cheers.
Explain in your own words the "lemur experiment."
this is from the pbs-nova-the great math mystery worksheet pls help
Answer:
The answer is below
Explanation:
Lemur Experiments in Mathematics shows that there are animals who also possess the human sense of understanding numbers.
The Lemur experiment proved that lemur can distinguish numbers even when there is no language or graphical representation. This is synonymous in comparison with humans' ability to relate amounts without the typical counting.
Hence, it was concluded that the ability to comprehend numbers can serve as a means of observing the scientific relationship between humans, mathematics, science, and engineering.
write a paragraph about sea turtle's habitat.
Answer:
Habitat & Diet
Sea turtles live in almost every ocean basin throughout the world, nesting on tropical and subtropical beaches. They migrate long distances to feed, often crossing entire oceans. Some loggerheads nest in Japan and migrate to Baja California Sur, Mexico to forage before returning home again.
Explanation:
hope it helps
The mass of the earth is 81 times the mass of the moon. Using Newton's Law of Gravity what would the affect of gravitation be if the mass of the moon were doubled and the distance was also doubled?
Group of answer choices
4 times the gravitational attraction
twice the gravitational attraction
1/4 the gravitational attraction
Half the gravitational attraction
Answer:
it would be half the the gravitational attraction(D) because the distance Has doubled.
If the mass of the moon were doubled and the distance between them is also doubled, then it will have half the gravitational attraction. The correct option is D.
What is gravitational force?The gravitational force is basically a force that attracts any two mass-bearing objects. The gravitational force is called attractive because it always tries to pull masses together rather than pushing them apart.
According to Newton's law of gravitation, the force of gravitation is inversely proportional to the square of the distance between the bodies. Thus, doubling the distance reduces the force of gravitation by 1/4.
If one of the objects' mass is doubled, the force of gravity between them is also doubled. If one of the objects' mass is tripled, so is the force of gravity between them. If the mass of both objects is doubled, the gravitational force between them is quadrupled, and so on.
Now, here, the mass is being doubled which is making the gravitational attraction doubled. But distance is also increasing by two.
So in this case, the gravitational attraction will get 1/4, so the net attraction will be half.
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Which gas is forming in the tube shown below
Answer:
Maybe give us a link or something so we can help
Explanation:
Maybe redo the question with the image and send a link
is formed when one or more than one atom bonds to another atom.
Explanation:A special case of polar forces occurs in what is called the hydrogen bond. In many situations, when hydrogen forms a covalent bond with another atom , electrons move toward that atom, and the hydrogen acquires a slight positive charge. The hydrogen, in turn, attracts another atom, thereby forming a kind of bridge between the two.
i think
1. It is a picture please it is for homework i really need help
If it is right i will mark brainest
Answer:
0-20 seconds
your welcome
Tylee is shy but wants to try out for a skit in the community talent show. She thinks that performing will be a way to pull
herself out of a shy shell. Which theory does Tylee's belief describe?
determinism
free will
combination of both
neither
Answer:
combination of both
combination of both is wrong.
b.) Free will is correct.
