Answer:
Letter C is correct
Explanation:
Earth's moderate temperatures allow water to exist in all three states: solid, liquid, and gas. Its strong gravity keeps the water from escaping into space. Hence option B is correct.
The other options are not correct. Weak gravity would not be able to hold water on Earth, and high temperatures would cause the water to evaporate.
Strong magnetic fields and lunar tides do play a role in shaping Earth's oceans, but they are not the primary factors that allow Earth to maintain bodies of water.
Here are some other factors that help to maintain bodies of water on Earth:
The Earth's atmosphere, which traps heat and prevents the water from freezing.
The Earth's rotation creates the Coriolis force, which helps to distribute the water evenly around the planet.
The Earth's tilt, which causes the seasons, affects the amount of sunlight that reaches different parts of the planet and affects the temperature of the water.
Therefore, option B) Moderate temperatures and strong gravity are correct.
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what does the immune system do to fight off malaria?
Answer:
The body raises the temperature of the body to create an unlivable area for the parasite.
Explanation:
A car with a mass of 1,324 kilograms, traveling at a speed of 20 meters/second, crashes into a wall and stops. What is the kinetic energy after this perfectly inelastic collision?
The kinetic energy of a car with a mass of 1,324 kilograms, traveling at a speed of 20 meters seconds is 264800J.
How to calculate kinetic energy?The kinetic energy of a moving car can be calculated using the following formula:
K.E = ½ × m × v²
Where;
K.E = kinetic energym = mass v = velocityK.E = ½ × 1324 × 20²
K.E = 264800J
Therefore, the kinetic energy of a car with a mass of 1,324 kilograms, traveling at a speed of 20 meters seconds is 264800J.
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In a scientific investigation, the term “quantitative data” refers to numbers that are usually followed by
units.
graphs.
written descriptions.
photos of measurement.
Quantitative data in scientific investigations are numbers usually followed by units. The first option is the correct one.
What are quantitative data?In relation to scientific investigation, quantitative data are attributes that are measurable or quantifiable. Thus, they can be assigned numerical values.
Because of the measurability, variables within quantitative data usually have units attached to them.
For example, height is measured in meters, feet, centimeters, etc.
Quantitative data is opposed to qualitative data because the latter cannot be assigned a numerical value.
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Answer:
A. units.
Explanation:
i got it right
How much ATP is produced from the Kreb Cycle?
According to the research, in the Kreb Cycle two ATP molecules are generated.
What is the Kreb Cycle?It is the set of reactions that generates most of the electron carriers (energy) that will be connected in the electron transport chain.
Two molecules of adenosine triphosphate (ATP) are formed from one glucose molecule (two turns of the cycle).
Therefore, we can conclude that according to the research, in the Kreb Cycle two ATP molecules are generated.
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Looking at the graph (photo attached), what is the independent and dependent variable?
Answer:
independent: food
dependent: mass grain
Explanation:
Electroporation is a technique used for __________
Electroporation is a technique used for inserting DNA into cells
What is Electroporation?Electroporation is a physical transfection method that uses an electrical pulse to create temporary pores in cell membranes through which substances like nucleic acids can pass into cells.
Electroporation is highly efficient for the introduction of foreign genes into tissue culture cells, especially mammalian cells.
Hence, electroporation is a technique used for inserting DNA into cells
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During the nitrogen cycle, through which structure are nitrogen compounds first absorb into the plant?.
Answer:
Plants take up nitrogen compounds through their roots. Animals obtain these compounds when they eat the plants. When plants and animals die or when animals excrete wastes, the nitrogen compounds in the organic matter re-enter the soil where they are broken down by microorganisms, known as decomposers
Answer:
the
Explanation:
Which statement best explains why cooperation between countries is necessary to prevent a tragedy of the commons?
Since there are so many common areas, sharing between countries should be easier.
If one country overuses a common resource, it depletes the common resource for all.
Common areas are divided among only a few countries, and little access is given to the rest.
Too many countries have access to common areas, and this prevents them from sharing.
The statement which best explains why cooperation between countries is necessary to prevent a tragedy of the commons is that If one country overuses a common resource, it depletes the common resource for all and is denoted as option B.
What is Tragedy of the commons?This is referred to as a situation in which the resources are available to the people and they are overused due to the ease of access to them.
Cooperation between countries will help to curb a country overusing a common resource which will lead to the depletion of the common resource for all.
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Select the correct answer. A force of 15 newtons is applied to both Object A with a mass of 25 kilograms and Object B with a mass of 50 kilograms. What is true about the acceleration of Object A and Object B? A. Acceleration of Object A is four times that of the acceleration of Object B. B. Acceleration of Object A is the same as the acceleration of Object B. C. Acceleration of Object A is half the acceleration of Object B. D. Acceleration of Object A is twice that of the acceleration of Object B.
By Newton's second law
F=ma , F=force (unit= N)
m=mass (Kg), a=acceleration (m/s2)
By applying the formula, we can calculate acceleration
a = F/ m
For object A,
Force =15N, Mass=25kg
a= 15/25
acceleration, a=0.6m/s2
For object B,
Force=15N, Mass=50 kg
a=15/50
acceleration,a=0.3m/s2
By calculation, the acceleration of object A is twice the of object B.
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Answer:
See image
Explanation:
Plato
What does the specific
defense of the immune
system use to fight
pathogens?
A. red blood cells
B. vaccines
C. lymphocytes
D. plasma
Answer:
C
Explanation:
There are different types of T-Cells, aka Lymphocytes.
the Cytotoxic T-Cells will find and directly attack, also giving them the name "Killer Cells"
The Cytotoxic cell's main purpose is to find bacteria, viruses, and cancer cells.
Next,
there is the Helper T Cells, which recruit other immune system cells and organize a special immune response.
Regulatory T cells, suppress the immune system so it doesn't overreact. Just as in Auto-Immune diseases
which animal has a better chance of survival, fox or leopard?
Answer:
fox is th right answer
Explanation:
fox
Answer: leopard
Explanation:
What are the defining characteristics of chondricythyes?
Species in this class have paired fins, hard scales, a two-chambered heart, and a pair of nostrils. Most species have 5-7 gill slits on each side of their body.
Chondrichthyes are cartilaginous fishes and are mostly marine with basic fish attributes.
ChondrichthyesThey are a class of fishes known as cartilaginous fishes. They possess all the characteristics of fishes in addition to features such as:
living mostly in marine habitatspossessing a pair of jawthe central placement of the mouthpossession of cartilaginous skeletons instead of bonesMore on Chondrichthyes can be found here: https://brainly.com/question/3520910
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In the case of sickle cell anemia, the slight alterations in the DNA of red blood cells lead to a. defects in the membranes of these cells. b. changes in the structure of the protein hemoglobin. c. poor use of glucose for energy. d. inability of the cells to make protein.
The slight alterations in the DNA of red blood cells lead to changes in the structure of the protein hemoglobin.
What is sickle cell anemia?Sickle cell anemia refers to a defect in the red blood cells in which abnormal hemoglobin is present in the red blood cells resulting in the inability of the red blood cells to efficiently transport oxygen to the tissues.
This is due to a mutation in the gene coding for hemoglobin production.
The red blood cells have a sickle shape.
Therefore, the slight alterations in the DNA of red blood cells lead to changes in the structure of the protein hemoglobin.
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All cells contain a nucleus
true
false
[tex]\huge\sf{ANSWER}[/tex]
All cells contain a nucleus
FalseExplanation is in the pic
Hope it helps
Answer:
True.Explanation:
Why true?For me i say its true because :
All cells have three common organelles namely Cell membrane,cytoplasm and nucleus.Why does a solid change to liquid when heat is added?
A. The spacing between particles decreases.
Particles lose energy.
B.
C. The spacing between particles increases.
D. The temperature decreases.
Rese
Answer:
C. The spacing between particle increases.
Explanation:
The particles are given more energy and begin to vibrate faster when a solid is heated. As the atoms vibrate faster, spacing in between particle increases.
The "collar bone" is also known as the:
According to the research, the collar bone is also known as the clavicle.
What is the clavicle?They are the bones of the human being that are found in the upper sector of the chest, articulating with the acromion of the shoulder blade and the sternum.
This bone is important for the composition of the shoulder joint complex, since it functions as a stabilizer for all parts of the shoulder, and therefore for the arm.
Therefore, we can conclude that according to the research, the collar bone is also known as the clavicle.
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Answer:
clavicle
Explanation:
hope this helps :)
The stage of the cell cycle during which the cytoplasm divides to form two cells is called.
Answer:
Cytokinesis
Explanation:
Cytokinesis is the step of the cell cycle in which the cell must faithfully separate the chromosomes and cytoplasm, yielding two daughter cells.
Why was the BIOS framework relocated to flash memory from a complementary metal-oxide-semiconductor (CMOS) in later development?
Answer:
Answer is D
Explanation:
Flash memory provides stability to the
BIOS framework and makes update
installation much easier than with CMOS.
Because these two transistors are complementary to one another, a circuit created by combining them is referred to as a complementary MOS circuit, or CMOS circuit for short. Thus, option D is correct.
What is complementary metal-oxide-semiconductor (CMOS)?The majority of modern integrated circuits, commonly referred to as chips or microchips, employ a complementary metal-oxide semiconductor (CMOS) as their semiconductor technology.
Metal-oxide semiconductor field-effect transistor technology is the foundation for CMOS transistors.
Several analog circuits, including image sensors (CMOS sensors), data converters, and highly integrated transceivers for various forms of communication, also use CMOS technology.
Therefore, BIOS framework relocated to flash memory from a complementary metal-oxide-semiconductor (CMOS) in later development.
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Since each myofibril is attached at either end of the muscle fiber, when sarcomeres shorten, the muscle fiber.
Each myofibril is attached at either end of the muscle fiber, when sarcomeres shorten, the muscle fiber Shortens
Mechanism :
Myofibrils are components of the animal skeletal muscles that are made up of sacromeres. They perform the muscular contraction and relaxation via the sliding filament model.
To produce motion, A cross-bridge forms between actin and the myosin heads triggering shortening of the sacromere. This shortening of the sacromere results in the contraction of the muscle fibers, which the net effect can be seen to be a shortening of the fibers.
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Robert Hooke first observed cork under a microscope in jail so he named the small cubicles cells
False True
It is not true that Robert Hooke was in the jail while discovering cells.
Robert Hooke was observing cork through his microscope and saw tiny cubicles cells or boxlike cavitie which he later named as cells.
What is cell?Cell can be defined as the smallest, functional, basic and structural unit of life.
However, biologists too categorize living organisms into two different groups based on the numbers of cells they posses. These are:
Unicellular organisms: These are organisms which is made up of only one cellMulticellular organisms: These are organisms made up of two or more cellsIn conclusion, it is not true that Robert Hooke was in the jail while discovering cells. Rather, he was observing cork through his microscope and saw tiny cubicles cells or boxlike cavitie which he later named as cells.
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The arteries a. serve as rapid-transit passageways from the heart to the organs because of their large radii b. act as a blood reservoir because they have the capacity to store large volumes of blood with little change in their internal pressure c. are the major sites of blood flow resistance in the vasculature d. are the site of exchange between the blood and surrounding tissues e. none of these
The arteries act as rapid-transit passageways from the heart to the organs because of their large radii. The correct option is A.
Functions of the arteriesThe arteries are blood vessels that carry blood away from the heart to the cells, tissues, and organs that are in need of oxygen.
They have large radii and as such, serve rapid-transit passageways from the heart to the various cells, tissues, and organs.
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The most prevalent antibody class in the blood is:
The most prevalent antibody class in the blood is immunoglobulin G, IgG.
What are antibodies?Antibodies are proteins which are produced by the body and form part of the immune system by binding onto antigens in order to enhance their clearance from the body.
Antibodies are found in the blood. The antibodies found in the blood include the immunoglobulins A, D, E, and G.
The most prevalent antibody class in the blood is immunoglobulin G, IgG.
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Why do you think the bones of the legs are at particular risk for fractures in rod
really need help on this asap
giving out 15 points :)
Explanation:
1 chemical reaction endothermic
2 physical change. exothermic
3 chemical reaction endothermic
Answer:
1. Chemical reaction | Endothermic
2. Physical change | Exothermic
3. Chemical reaction | Endothermic
Explanation:
• Chemical reaction or Physical change?
A chemical reaction occurs when one or more substances converted into one or more different substances; they are usually irreversible.
A physical change occurs when the state of matter, or any other physical property, of a substance changes; they are usually reversible.
• Endothermic or Exothermic?
An endothermic reaction or change is one in which the system takes in thermal energy.
An exothermic change is where thermal energy is given out by the system.
What are the most primitive surviving vertebrates?
The most primitive surviving vertebrate are those in the Agnatha class.
AgnathaThis refers to a group of fishes that are jawless. They include lampreys and hagfishes.
Fishes in the Agnathan class have no fins nor stomachs.
Hagfishes still exist with over 76 species in different cold waters around the world.
Lampreys live mostly as parasites on other fishes and are found in the Atlantic oceans.
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Disavantages of carbon
Answer:
Disavantages if Carbon: Carbon can cause climate change by trapping heat, and they can contribute to respiratory disease from smog and air pollution.
how do all viruses differ from bacteria?
All viruses differ from bacteria in the sense that viruses cannot reproduce outside of a living host but bacteria can.
What are viruses and bacteria?Virus is a submicroscopic, non-cellular structure consisting of a genetic material (DNA or RNA) surrounded by a protein coat called capsid.
A bacterium cell, on the other hand, is a single celled organism with cell walls but no nucleus or organelles.
A virus requires a living host cell to replicate while a bacterium can replicate itself irrespective of a living host.
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difine jack screw
please help me
Answer:
A few basic components comprise a jackscrew. The main piece is the screw itself. The screw may be connected to a plate of some kind housing a load or attached to another piece of machinery that is then moved.
Answer:
a screw that can be turned to adjust the position of an object into which it fits.
a vehicle jack worked by a screw device.
Explanation:
hope this help you
The atlantic cod (gadus callarias) is a fish which lays about 5 000 000 eggs in its lifetime. On average, only two of these eggs survive to become adult cod. How does this promote evolution?
The atlantic cod (gadus callarias) is a fish which lays about 5 000 000 eggs in its lifetime. On average, only two of these eggs survive to become adult cod. This promote evolution because the environment selects the most evolved animals to survive that environment.
What is the evolutionary process?Evolutionary processes aim, therefore, to generate greater adaptation of species in an environment. When new species of organisms are formed from gradual changes in preexisting species.
So although there are several eggs initially only those that survived the environment are able and evolved to reproduce, so the evolution of species is carried out.
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Research has demonstrated that people will help in-group members because __________.
Research has demonstrated that people will help in-group members because they have feelings of empathy.
What is empathy?Empathy is an emotion that helps people to understand the situation in which another person lives.
Empathy also helps to develop healthy groups and communities and it is an evolutionary feature.
In conclusion, research has demonstrated that people will help in-group members because they have feelings of empathy.
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