Answer:
Impact.
Explanation:
Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.
In Science, the study of blood is generally referred to as serology.
Impact refers to how fast blood traveled from its source to where it landed.
This ultimately implies that, an impact is a measure of the rate at which blood travels from its source to where it lands. The four (4) phases of impact includes;
I. Displacement.
II. Retraction.
III. Contact and collapse.
IV. Dispersion.
In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
Generally, the right atrioventricular valve (AV) is also referred to as the tricuspid valve and is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.
What type of system best. Defines planet earth
Answer:
While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the biggest of the four planets closest to the Sun, all of which are made of rock and metal.
Explanation:
Why does the organism engage in dormancy, hibernation, or migration?
Answer For,
Why does the organism engage in dormancy, hibernation, or migration?
Explanation:
Dormancy is a period in an organism's life cycle when growth, development, and (in animals) physical activity are temporarily stopped. This minimizes metabolic activity and therefore helps an organism to conserve energy.
Hibernation is an adaptation that helps many animals conserve energy by remaining inactive, greatly slowing their metabolism and reducing their body temperature for days, weeks or even months at a time. Typically, animals hibernate in order to survive long periods when food is scarce.
Some animals travel relatively short distances to find food or more favorable living or breeding conditions. Most animals that migrate do so to find food or more livable conditions. Some animals migrate to breed. The Atlantic Salmon begins its life in a river and migrates downstream to the ocean.
Diseases caused by single-gene defects, such as cystic fibrosis, hemophilia, muscular
dystrophy and sickle cell anemia might be able to be cured by replacing the
defective, non-functioning gene with a normal, functioning gene.
Which of the following biotechnologies is described?
Cloning
Gene therapy
Gel electrophoresis
GMOs
Answer:
Gene therapy
Explanation:
Gene therapy can be defined as the methodologies used to modify/restore the expression of target genes and thus cure and treat genetic disorders. Gene therapy approaches consist of delivering specific nucleic acids (either RNA or DNA) in the cells of the individual to be treated. Some of the most important gene therapy approaches include the use of small interfering RNAs (siRNAs) in order to block target gene expression, adenovirus vectors to insert genes into host cells, the use of the CRISPR-Cas9 genome editing system to insert specific sequences by the mechanism of homologous recombination, etc.
A scientist is investigating how fast a person conducts cellular respiration when exercising versus resting. How would the amount of the gas released be different for both situations ?
A. Less oxygen would be released when exercising then resting
B. More oxygen would be released when exercising than resting
C. Less carbon dioxide would be released when exercising than resting
D. More carbon dioxide would be released when exercising than resting
Answer:
More carbon dioxide would be released when exercising than when at rest.
hope this helps!!:)
Explanation:
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Birds and reptiles both lay hard-shelled eggs. Birds, reptiles, frogs, and fish have jaws. Birds, reptiles, and frogs have four limbs. Which cladogram shows the relationship between these organisms?
Answer: D
Explanation: This is because I just know. I toke Biology and learnt that's it's D trust me.
Fish, reptiles, birds, and reptiles all belong to the Phylum vertebrate of Animal Kingdom. All these organisms have a vertebral column. Thus, the correct option is D.
What is Cladogram?
A cladogram is a diagram which is used in cladistics to show the relationship among different organisms present in the ecosystem.
A cladogram is not an evolutionary tree as it does not show how ancestors and descendants are related to each other and who are the ancestors.
Fishes, reptiles, birds, and reptiles are the species which belong to Phylum Vertebrata. All these organisms show organ-system level of organization, vertebral column, closed circulatory system, body coelom, etc.
Therefore, the correct option is D.
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What type of cell is cell D?
A) animal
B) bacterial
C) fungal
D) plant
Answer:
B. I believe sorry if wrong tho
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Which type of agricultural trend characterized the Green Revolution?
A. Farmers stopped using industrialized farming techniques and began using
sustainable agriculture.
B. Farmers stopped growing traditional varieties and began growing genetically
modified crops.
C. Farmers stopped growing traditional varieties and began growing high-yield
varieties,
XO D. Farmers stopped using pesticides and began using organic farming
practices.

Answer:
C.Farmers stopped growing traditional varieties and began growing high-yield
Where does most of the oxygen produced in photosynthesis
go?
Answer:
THE ATMOSPHERE
Explanation:
Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules
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Explain with examples of each, how both physical and chemical weathering, along with erosion, can change Earth's surface.
Answer:
Both physical and chemical weathering, along with erosion, can change Earth's surface as physical weathering allows breakdown of rock into smaller pieces, these pieces can be move from one place to another through water, wind or ice (erosion), and when the smaller pieces will settle down at a place, rain water can react with the soil or smaller rock pieces to form rock minerals.
For example: Running water, wind, and rapid heating/cooling allows the rocks to break down into smaller pieces or grains (physical weathering), then the small grains are transported and settled away from the source area through wind or river (erosion), and at the end the surface area exposed to air for chemical weathering.
Why does our body cells require oxygen?
Explanation:
because without our cell will start dying
the standard métric unit temperature is
Answer:
Fahrenheit and Celsius
Explanation:
Answer:
Degree Celsius
Explanation:
The metric unit of temperature is the degree Celsius (oC), which replaces the English system's degree Fahrenheit (oF). In the scientists' SI, the fundamental unit of temperature is actually the kelvin.
What occurs in photosystem 2? a. water is split into hydrogen and oxygen b. carbon dioxide is made into sugar c. NADP and ADP are burned for energy d. The dark reaction
PLEASE HELP!
Answer:
C
Explanation:
help plz ASAP
Which of the following properties of carbon distinguishes it from all other elements?
A- Carbon has six protons in its nucleus
B- Carbon is a gray solid at room temperature
C- Carbon forms compounds with oxygen
D- Carbon can be found in Earth’s crust
Answer:
C. carbon forms compound with oxygen .
hope it helps ❤
The property of carbon is that it has six protons in its nucleus distinguishes it from all other elements. Hence. option A is correct.
What are the properties of carbon?The chemical element carbon has the atomic number six and the letter C assigned to it. It has a tetravalent atom, which means that four of its electrons can be used to create covalent chemical bonds. It is nonmetallic. The periodic table's group 14 includes it. The crust of the Earth contains 0.025 percent carbon.
When carbon atoms join together to form lengthy chains, this element can form. When carbon burns, it combines with oxygen to form CO2 (and sometimes carbon monoxide). The incomplete combustion of wood during the creation of charcoal results in a high-carbon product that can burn longer.
Different elements have different numbers of protons in their nucleus. Therefore, option A is correct.
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Why is a body of water cooler in the summer than the air surrounding the body of water?
Water has a high heat capacity.
Water is denser than air.
Water has cohesive properties.
Water has high surface tension.
Answer:
A. Water has a high heat capacity
Explanation:
The water cycle allows water to move around the earth and be distributed in areas far from
where the water evaporates. What question best asks how this process occurs?
A. How does evaporation affect where clouds form and rain falls?
O B. How is condensation affected by transpiration from forests?
O C. How does precipitation affect the amount of runoff and infiltration?
O D. How does infiltration affect the amount of runoff and volume of
groundwater?
Answer:
its B
Explanation:
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what is viscosity please answer
the state of being thick, sticky, and semifluid in consistency, due to internal friction.
Answer:
YE free points for meeeeeeeeeeeeee
Explanation:
Which of the following processes describes how vegetation influences precipitation?
Answer: Transpiration
In place of thymine, what does RNA use as a base
Please help
Students are observing an aquatic plant. They understand that the bubbles
they see rising from the cut stem of the plant are the gases produced
during photosynthesis. Which of the following observations provides the
best evidence that light is the source of energy for photosynthesis? *
Students are observing an aquatic plant, and from that, they get to know about the photosynthesis process and they observe that in the light of the sun, the bubbles intensify, and when the sun goes down, the bubbles lessen, that is the last option.
What is the significance of photosynthesis in aquatic plants?Photosynthesis takes place in plants, algae, and some bacteria, and they can make their own food using energy from sunlight and photosynthesis provides the energy source, which is the basis of the food chain. Photosynthesis is essential for regulating the Earth's climate, producing oxygen, and maintaining many important ecological cycles in ecosystems.
Hence, students are observing an aquatic plant, and from that, they get to know about the photosynthesis process and they observe that in the light of the sun, the bubbles intensify, and when the sun goes down, the bubbles lessen, that is the last option.
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In the analogy of a cell as a city,
lysosomes could be thought of as...
A. a warehouse.
B. a police office.
C. a street sweeper.
Answer:
I think it's c.
Explanation:
The main function of lysosomes is to help with cell metabolism by ingesting and dissolving unwanted parts of the cell, cell debris, or foreign substances that have entered the cell. So, techinally a street sweeper has the same job as a lysosome since they are getting rid of unwanted stuff.
hormones do not last in the bloodstream indefinitely.For this season your glands constantly produce new hormones when needed.Using this information, explain why a diabetic person may require injections of insulin two or even three times per day?
"Superior vena cava carries completely digested substances"
How far the statement is correct ? With explanation.
Answer:
Yes.
Explanation:
As a blood vessel, Superior vena cava carries completely digested substances that is present in the blood from upper part of the body to the heart. Blood is a fluid that transport digested food from small intestine to other parts of the human body. It also carries oxygen from the lungs to the cells and also carries carbondioxide from the cells to lungs so we can say that Superior vena cava carries completely digested materials.
HELP!! I'm struggling!!
Help me with this? It's only 15 points
What happened that allowed cells to be studied?
A. Cells increased in size
B. Scientist began to work together.
C. Scientists became smarter.
D. The microscope was invented and improved.
Answer:
D
Explanation:
In science class, lab partners are designing an experiment that shows the important steps of the water cycle. For their experimental design, which of the
following procedures could best be used to demonstrate the difference between condensation and evaporation?
O A. To show condensation, the lab partners must increase the temperature within the cycle; to show evaporation, they must decrease the temperature,
OB. To show condensation, the lab partners must decrease the temperature within the cycle; to show evaporation, they must increase the temperature,
c. To show condensation, the lab partners must maintain a constant temperature within the cycle; to show evaporation, they must increase the
temperature
D. To show condensation, the lab partners must maintain a constant temperature within the cycle; to show evaporation, they must decrease the
temperature
Answer:
To show condensation, the lab partners must decrease the temperature within the cycle; to show evaporation, they must increase the temperature.
Answer: A :) hope this helps!
This is cooking class and I need your help please
1 - c
2 - c
3 - either a or c
4 - b
Four substances are important for both photosynthesis and cellular respiration: oxygen, glucose, carbon dioxide, and water. What is the best explanation for how both processes use these substances?
Answer:
D. Photosynthesis uses carbon dioxide and water to make glucose and oxygen; respiration uses glucose and oxygen to make carbon dioxide and water.
Explanation:
Photosynthesis uses carbon dioxide and water to make glucose and oxygen; respiration uses glucose and oxygen to make carbon dioxide and water is the best explanation for how both processes use these substances
what is photosynthesis ?The process in which sunlight energy is used by plants, algae and certain bacteria convert them into chemical energy and starch called as photosynthesis.
Photosynthesis occur in chloroplast which has its own DNA, genes and hence can synthesize their own proteins, photosynthetic Pigments responsible for trapping sunlight present in chlorophyll pigment of chloroplast, like chlorophyll a, b and c.
Bacteria also have chlorophyll known as bacteriochlorophyll can absorb infrared rays, other pigments are Carotenoids which are yellow, orange or red-coloured pigments that absorb bluish-green light., Xanthophyll, Phycobilins.
plastids are found in the cytoplasm of eukaryotic photosynthetic organisms. They contain pigments and store nutrients. Plastids are of three types such as Leucoplast, Chromoplasts, Chloroplasts
Antennae is made up of 100 to 5000 pigment molecules that capture light energy from the sun in the form of photons, Reaction Centers where photosynthesis occur.
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Name the four ways muscle strength can be measured and briefly describe each, In this ansignment, you will expand your knowledge of muncle structure and numction by exploring muscle strength and contraction. Then you will no what you learn to answer some follow up questions Read the article and use the information to anwer the following questions
Hii!! (: The correct answers are:
Absolute strength measures maximum force.
Dynamic strength measures repeated motions.
Elastic strength measures exertion of force rapidly.
Strength endurance measures fatigue resistance.
Muscle strength can be measured in four different ways: manual muscle testing, isokinetic testing, isometric testing, and dynamometry. Manual muscle testing involves the use of a hand-held dynamometer to measure the amount of force generated by a muscle contraction.
What is the use of this test ?This type of test is often used to assess the strength of a person’s muscles in order to diagnose any physical impairments or evaluate the effectiveness of a rehabilitation program.
Isokinetic testing is a type of testing that measures the amount of force generated by a muscle contraction at a constant speed. This type of test is often used to evaluate the strength of a muscle group or to measure the effects of a rehabilitation program.
Isometric testing is a type of testing that measures the amount of force generated by a muscle contraction when the muscle is held in a static position.
This type of test is often used to evaluate the strength of a muscle group or to measure the effects of a rehabilitation program. Finally, dynamometry is a type of testing that measures the amount of force generated by a muscle contraction when the muscle is actively contracting.
This type of test is often used to evaluate the strength of a muscle group or to measure the effects of a rehabilitation program. These four different methods of measuring muscle strength can provide valuable insight into the strength and function of a person’s muscles.
Hence, Manual muscle testing is the most commonly used method, as it is the most cost-effective and can provide quick results. Isokinetic, isometric, and dynamometry testing are more expensive and time consuming, but provide more detailed information about the strength and function of a person’s muscles.
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Select the correct answers.
Identify the clean sources of energy.
Answer: Windmill, solar energy, and burning wood.
Explanation:
