Why is prior knowledge so important in science?
C)
Prior knowledge allows you to make a well-informed hypotheses and
better-planned experiment.
What is prior knowledge how does it influence learning?Prior knowledge has long been considered the most important factor influencing learning and student achievement. The amount and quality of prior knowledge positively influence both knowledge acquisition and the capacity to apply higher-order cognitive problem-solving skills.
What is prior knowledge mean?Prior knowledge is defined as all the knowledge one has before learning about a particular topic
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A carbon atom has four valence electrons. How do all living things depend on this property and other special chemical properties of the carbon atom?
Answer:
It is for the fact that Carbon need to fill up its shell for order to make it coplete. Hense using Covelant bonds. Carbon therefore can connect to oxygen, hygrogen, and other carbon molecules. Also Carbon can connect in 4 ways to. It also can form 2 main covelant bonds
Explanation:
I am a bio teacher
Carbon is an element with four valence electrons which makes it possible to
form covalent bonds with other elements such as Hydrogen, oxygen etc.
Carbon has four valence electrons and needs an additional four in order to
achieve a stable octet configuration. This makes it react with other
elements . When an element has fewer or no valence electrons in the outer
shell, it becomes less reactive to ensure the stable configuration isn't altered.
This is why carbon is able to pair electrons with other elements through
covalent bonding to ensure that the octet configuration is achieved.
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E.Coli is a type of prokaryotic bacterium that is present in contaminated food. Which describes where the genetic material is found
A.cytoplasm
B.Cell membrane
C.Ribosome
D.Nucleus
Answer:
Cytoplasm
Explanation:
In prokaryotes DNA is located directly within the cellular cytoplasm
In the E.coli, that is, a prokaryotic bacterium, the genetic material is found in the cytoplasm.
The genetic material in E.coli:E.coli is a prokaryotic bacterium, and in all the prokaryotic cells, genetic information is carried on a single circular strand of DNA, which is either present in direct contact with the cytoplasm or is attached to the cell membrane.
In the prokaryotes, no enclosing membrane organelle is present, therefore, no nucleus is found. They comprises a concentration of DNA called nucleoid, which is not encircled by a nuclear membrane. Apart from this, no unique proteins are found attached with the molecule of DNA.
Thus, the correct answer is option A, that is, cytoplasm.
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If 30% of the nucleotides in a single-stranded RNA molecule are adenine, then what percent are expected to be thymine?
Answer:
Explanation:
the base pair of adenine is thymine they are equal in amount in RNA so if 30% of the nucleotide in RNA is adenine so the percentage of thymine would also be equal to adenine that is 30%
If the DNA strand has 30% Adenine in its composition, it means that the same DNA strand has 30% thymine in its composition.
This is because:
DNA is composed of the nitrogenous bases Adenine, Thymine, Cytosine and Guanine.These nitrogenous bases were paired with each other.Adenine pairs with Thymina. While Cytosine pairs with Guanine.Therefore, the amount of Adenine and Thymine in a DNA must be equal. While the amount of Guanine and Cytosine must be equal.In this case, we can conclude that if the DNA has 30% of Adenine, it is mandatory that this same DNA has 30% of Thymine.
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Are enzymes made out of carbohydrates
Answer:
no they are not .
Explanation:
enzymes are made up chains of amino acids . and they perform the critical task of lowering the activation energies of chemical reactions inside the cell .
Which of the following is an Abiotic factor?
Wind
Animals
Plants
Humans
Answer:
Wind
Explanation:
Organisms need _____ to conduct essential life activities
Answer:
organisms need ENERGY to conduct essential life activities
Explanation:
organisms need energy to digest, use the restroom, eat, even standing up requires energy!
Why can’t viruses maintain their own homeostasis?
Which structural component is found in DNA but not in RNA?
O ribose
O deoxyribose
O phosphate group
O nitrogenous base
Answer:
Deoxyribose
Explanation:
Neither deoxyrinose nor thymine is found in RNA.
The structural component found in DNA but not in RNA is deoxyribose.
What is DNA and RNA?Both DNA and RNA contain the same nitrogenous bases (adenine, guanine, cytosine, and uracil in RNA or thymine in DNA) and phosphate groups.
However, DNA contains deoxyribose sugar in its backbone, while RNA contains ribose sugar. The difference between the two sugars is that deoxyribose lacks an oxygen atom on the second carbon in the sugar ring, whereas ribose has an oxygen atom at that position. This difference in sugar composition is responsible for some of the unique properties of DNA, including its double-stranded helical structure and greater stability compared to RNA.
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I will give The crown to you if your first to answer 5. Using the Law of Gravitation explain why the moon orbits the earth and the planets orbit the
Answer:
Explanation:
the moon and satellites we launch orbit Earth because they are so much lighter than our planet. ... The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.
Question 3 (4 points)
(02.02 LC)
Match the term with the definition. (4 points)
Column A
Column B
1.
Evaporation
a. A phase change from a solid to a liquid
2.
Melting
b. A phase change from a liquid to a solid
3.
Sublimation
C. A phase change from a liquid to a gas
4.
Freezing
d. A phase change from a solid to a gas
Explanation:
Evaporation-A phase change from a liquid to a gas
Melting-A phase change from a solid to a liquid
Freezing-A phase change from a liquid to a solid
Sublimation-A phase change from a solid to a gas
Hope this helped, lots of love,
-Kiddoo <3
Although crystalline, colloid, glassy, amorphous, and plasma phases are thought to exist, the three basic phases of matter are solid, liquid, and gas (vapor). A phase change is defined as the transformation of a phase from one form to another. Thus, option 1. C, 2. A , 3. D, 4. B is correct.
What are different phases of matter?Depending on the pressure and temperature circumstances, a given set of matter can change its state or phase, transitioning to different phases as these variables change to favor their existence.
The primary distinction between a substance's phase and state can be summed, For instance, a solid can convert to a liquid when the temperature rises.
A substance's phase describes its uniform chemical and physical qualities, whereas a substance's state describes its shape at a specific temperature and pressure.
Therefore, A phase change from a solid to a liquid represent melting.
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Can you help me with the question listed in the pictures below? Please and thank you. Will mark BRAINLIEST!!!
Answer:
If you truly enjoy something, it won't feel like work.
Explanation:
if your job is something you just have to do and you are not happy it will
feel like work, like chores. No one likes to wash dishes so it feels like work.
How does water's polarity help it to dissolve so many substances?
Answer:
When a polar substance is put in water, the positive ends of its molecules are attracted to the negative ends of the water molecules, and vice versa
Explanation:
id if this helped but
Use the map's contour lines to find the contour interval of the map.
A. 10feet
B. 50 feet
C. 100 feet
D. 25 feet
Which ones go in the circles ?
Answer:
Nucleic Acids- DNA- double chain- deoxyribose- ACGT- nucleus- mRNA
RNA- single chain- ribose- ACGU- cytoplasm- mRNA, tRNA, rRNA
Explanation:
a system of goverment
Answer:
3 types of systems
Explanation:
- unitary
-federal
-confederate
4 – Microwave Miracle Patrick believes that fish that eat food exposed to microwaves will become smarter and would be able to swim through a maze faster. He decides to perform an experiment by placing fish food in a microwave for 20 seconds. He has the fish swim through a maze and records the time it takes for each one to make it to the end. He feeds the special food to 10 fish and gives regular food to 10 others. After 1 week, he has the fish swim through the maze again and records the times for each. What was Patrick’s hypothesis? Which fish are in the control group? What is the independent variable? What is the dependent variable? Look at the results in the charts. What should Patrick’s conclusion be?
Answer and Explanation:
What was Patrick’s hypothesis? Fishes that are fed with food exposed to the microwave will become smarter and will swim faster. Which fish are in the control group? The ones that feed on regular food What is the independent variable? Food exposed to the microwave What is the dependent variable? The time fishes spend in swimming through the mazeWhat should Patrick’s conclusion be? You will find the results considered in the attached file.In both groups, Patrick recorded a decrease in the time spent swimming through the maze. In both groups, there were two cases in which the animal increase the swimming time. These cases could be considered as outliers. Although in general, the treated group made it in a shorter time after the treatment, when comparing values before and after Patrick can not find any real difference among groups. His results do not show any difference, hence the speed and the intelligence of the animals is not influenced by the change in food, or if it is, more experimental time is required to record significant differences.
BRAINLIEST!!!!! Are giraffes mammals?
Answer:yes giraffes are mammals they do not lay eggs
Explanation:
Answer:
Yes
Explanation:
they are warm blooded vertebrates
true or false ? “Reasoning statements may include an explanation of a scientific principle.”
Question 12 (1 point)
Which of these is a biotic factor that affects population size?
a
air
food
C
temperature
precipitation
Od
Answer:
The answer is food
Explanation:
It's the only biotic factor in the choices
an example of how water moves from
the biotic part to the abiotic part of an
ecosystem.
One of the important examples of how water moves from the biotic part to the abiotic part of the ecosystem includes transpiration of water from the surface of the leaves of plant.
What is Transpiration?Transpiration is the loss of water in the form of vapors from the surface of leaves of plant. Transpiration of water takes place from the stomata of plant cells.
Stomata are the specialized cells present on the surface of leaves which are covered by the guard cells that regulates the opening and closing of stomata and hence the movement of water from the leaf surface.
In transpiration, water from plant, a biotic part of ecosystem is lost in the form of vapors to the atmosphere, i.e., an abiotic component of ecosystem. The rate of transpiration is regulated by factors such as sunlight, concentration of ions like sodium and potassium, presence of starch.
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The similar shapes of fast swimming marine predators are an example of:__________
Answer: convergent evolution
Explanation:
The similar shapes of fast swimming marine predators are an example of convergent evolution.
Convergent evolution shows how different species possess identical structures even though they evolve separately. Convergent evolution typically takes place with the organisms that are not really related.
An example of convergent evolution is the similarity that can be noticed in the wings or the flights of bats, birds, insects, etc
Can any kind soul help me ASAP
Answer:
9: c
10: B
here are yours answers pal.
Maybe this diagram can help you understand it more clearly. I hope it does. I don't have the first answer but maybe this can help you with the second one.
Which method of communication provides the fastest feedback for a researcher?
Which term best describes the temperature and weather conditions of an organism’s environment? biotic factors abiotic factors natural resources natural habitat
Explanation:
Abiotic factor is the correct one.
Answer:
Abiotic factors.
Explanation:
Got it right on Edge :]
Why do the atoms in most solids move more slowly than those in liquids?
Answer:
atoms are incredibly small and cannot be seen with even the most powerful light microscope
What does the theory of plate tectonics say about the earth’s surface?
The earth is one solid piece.
The earth is mostly covered in water.
The earth is broken into many pieces.
The earth is very thick.
Answer:
The Earth is broken into many pieces
What relationship exits between these terms? Community, Ecosystem,
Organism, Population
Answer:
A community is composed of all of the biotic factors of an area. An ecosystem includes the living organisms (all the populations) in an area and the non-living aspects of the environment
Explanation:
Hope it helps!
Fennec foxes (desert foxes) have ears up to 15 cm long. Thousands of years ago there was huge
variety in the size of the ears. Over time, those with the biggest ears were able to better survive as
they can lose more heat in the hot summer months. What would you expect to happen to the length
of Fennec fox ears if the temperature in the desert increases?
Answer:
You would expect their ears to also increase in size.
Explanation:
As the question says the ones with the biggest ears survived the best, implying if the temperatures rose the length of the ears would as well so that they could give off body heat.
Which of the following cycles refers to the chemicals moving through the Earth
to sustain life?
A. biochemical cycle
B. geological cycle
C. biographical cycle
D. biogeochemical cycle
Answer:
geological cycle
Explanation:
How much des temperature increase for every 25
kilometers down into the Earth?
Answer:
The temperature goes up to 625°C every 25 kilometers.
Explanation:
For every kilometer the temperature rises 25°C