Answer:
Nucleotide(s)
Explanation:
Both DNA and RNA are made of long chains of nucleotides. In DNA, there is adenine, cytosine, guanine, and thymine. In RNA, there is adenine, cytosine, guanine, and uracil.
Which of the following is not a part of the scientific method?
Scientific theories are just controversial guesses
Deciding how the world should be
Peer review
Relying on objective observation
Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. Part E How would you conduct your investigation? In your answer, explain your independent and dependent variables.
Answer
no . you should give one plant natural fertilizer and the other artificial fertilizer to decide which works the best
Explanation:
because it is made for tomatoes
Answer:
part E
The dependent variable is the growth rate of the plant. The independent variable is the type of fertilizer used over time. There will be three groups of tomato plants raised from seed: one group will be a control group without any fertilizer, the second group will be planted in soil with artificial fertilizer, and the third group will be planted in soil with compost. The height of the plants will be measured every five days, over a 30-day period.Explanation:
Mosquito repellent is sprayed on one arm and the other one is not sprayed. the number of mosquito bites is counted after 2 hours. what is the dependent variable and independent variable?
Answer:
who will answer this
Explanation:
c) Assume that the concentration of the solute molecules varies over time on both sides of the membrane and that the solute molecules continue to pass through the membrane even when the concentration gradient is the reverse of the gradient shown. Describe the environment in and around the cell, as shown in the diagram, and the mechanism of transport of the solute molecules. (3 points)
Answer:
Does the movement of molecules stop when the concentration of a solute is equal on both sides of a membrane?
The concentration of solute molecules on both sides of the membrane will vary over time, and the solute molecules will continue to pass through the membrane even when the concentration gradient is reversed.
The environment in and around the cell is constantly. The diagram shows a cell with a higher concentration of solute molecules on the inside than on the outside. This means that there is a concentration gradient, and the solute molecules will tend to move from the inside of the cell to the outside. This process is called diffusion.
The solute molecules can also move through the membrane by other mechanisms, such as facilitated diffusion and active transport. Facilitated diffusion is a process that uses proteins in the membrane to help the solute molecules move across the membrane. Active transport is a process that requires energy to move the solute molecules across the membrane.
The concentration of solute molecules on both sides of the membrane will continue to change over time. As the solute molecules move from the inside of the cell to the outside, the concentration of solute molecules on the inside of the cell will decrease. This will create a new concentration gradient, and the solute molecules will continue to move from the inside of the cell to the outside.
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how do you use a potometer in regard to environmental factors
Enzymes affect the reactions in living cells by changing the
O pH of the reaction
products of the reaction.
temperature of the reaction
speed of the reaction.
Answer:
Explanation:
speed of the reaction i think as an enzyme is a catalyst which increases the speed of a reaction without being changed/used up in the reaction.
Net Force:
N
Direction:
Balanced or Unbalanced:
PLEASE ANSWER PLEASE
Answer:
balanced
Explanation:
Since equal pressure is being applied from opposite sides, they cancel out. think about pushing a box from opposite sides. Its not gonna move. Hope I was a help! :)
When magma reaches the surface of the earth, it is called
plz help
Answer:
Lava
Explanation:
Answer:
it is called lava
Explanation:
What is 3meters converted into kilometers
Answer:
0.003
use the KHDUDCM
IT'S AN ACRONYM THAT COULD REALLY HELP YOU..... sorry for the caps. but look up King Henry died usually drinking chocolate milk for help with converting
How might the layers found in sedimentary rock help scientists learn more
about dinosaurs and other extinct species?
Answer:
Layers found in sedimentary rock could help scientists learn more about dinosaurs and other extinct species because each rock layer can be used to time date. The "oldest" being at the bottom and "newest" at the top. A scientist would also be able to tell which organisms lived together by looking at these layers
Explanation:
What is the difference between the velocity and the speed of an object?
-:---:--
Velocity is the change in distance over time, while speed is the change in velocity overtime.
Velocity has a direction associated with it, while speed has no specific direction.
Velocity has no direction associated with it, while speed has a specific direction.
Velocity is the change in speed over time, while speed is the change in distance over time.
DNA replication is said to be semi-conservative. Explain why this process has been described this way. Hint: Describe the process of DNA Replication, including what it starts and ends with.
Answer:
DNA replication is said to be semi-consertive because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand.. Semiconsertive replication would produce two copies that each contained one of the original strands and one new strand.
Explanation:
sort the excerpted below into examples and counterexamples of the theme strangers can act heroically. i saw a great many kindly acts act of violence. mass panic. the poor helped the rich the rich helped the poor one man worked for nothing. crime
Answer:below
Explanation:
Examples: “the poor helped the rich” “I saw a great many kindly acts” “one(man) worked.. for nothing” “ the rich helped the poor”
Counterexamples: crime, “act of violence” “mass panic”
What other three things do Volvox also likely lack?
A. Organs
B. Organ systems
C. Cells
D. Muscles
Answer:
B,D,A is the right answer.
Explanation:
The three things Volvox lack is Organs, Organ System, and muscles.
What Volvox likely lacks?
This is the most complex level of organization in life. several Volvox, one of the simplest multicellular living things. Volvox has no tissues.
What makes Volvox unique?In the northern region, the eyespots are more developed. This helps the colony to swim towards the light. This differentiation of cells makes Volvox quite unique. It is a colony that comes really close to being a multi-celled organism.
What is a fact about Volvox?
Volvox is a freshwater alga that is found in ponds, ditches, and even in shallow puddles. Volvox is nothing but a chlorophyte or green algae which exists as a grand spherical colony. Each little algae within the colony hold two flagella, whip-like hair.
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Which part of an amino acid has the greatest influence on the overall structure of a protein:__________a) the (-NH2) amino groupb) the R groupc) the (-COOH) carboxyl groupd) both A and C
Answer:A - NH2
Explanation:
The part of an amino acid has the greatest influence on the overall structure of a protein is the R group.
The amino acid has the R group and it is simply a term use to state the variable group on each amino acid. The amino acid framework is similar on all amino acidsThe structure of the R-group influences the reactivity of the chemical and solubility of the amino acidConclusively, we can say that the part of an amino acid has the greatest influence on the overall structure of a protein is the R group.
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How are eukaryotic and prokaryotic cells similar?
A.Both contain cell walls
B.Both contain ribosomes
C.Both contain membrane-bound organelles
D.Both contain a nucleus
Why was the Battle of Yorktown such a devastating defeat for the British?
Answer:
Cornwallis had marched his army into the Virginia port town earlier that summer expecting to meet British ships sent from New York. ... Cornwallis' surrender at Yorktown effectively ended the Revolutionary War. Lacking the financial resources to raise a new army, the British government appealed to the Americans for peace
Explanation:
Answer:
The British lost an entire army.
Explanation:
i just took the test.
please help me I dont have much time left
Answer:
Tissues are groups of similar cells that have a common function
An organ system is a group of organs that work together to do a job.
Explanation:
:)))
Answer:
tissues
Explanation:
Why are the water weed cells green, but the onion cells are not? Answer in complete sentences. WILL MARK BRAINLIEST!!!
Answer:
Water Weeds have a main extra feature that plant cells have is a cell wall on the outside. So it's mostly made of cellulose, which gives a tough covering on the outside of the cell membrane. And therefore, gives plant cells a distinctive polygonal outline. And the reason why Onion cells aren't green is that cells deep within the structure of plants are not green. Second, not all onion cells are lacking in green color. The bulb of the onion lacks green, but the stem and leaves of the onion plant are green. The reason the bulb is white, and not green is that it has no chlorophyll.
- Hope this helps
Chlorophyll, a distinctive green substance (pigment), fills the chloroplasts. The cell uses this green pigment to absorb light photosynthesis. Cells in onions are not green. No light, hence bacteria don't require chloroplasts.
What does chlorophyll do for your body?Supplement companies assert that chlorophyll has a wide range of benefits, and including ability to increase red blood cells, aid in weight reduction, mend damaged skin, remove toxins, reduce inflammation, and prevent cancer. It's an amazing list, yet only a few of the statements are supported by research. nausea while your digestive system processes the chlorophyll. vomiting, which can harm your teeth by producing stomach acids.
Is it safe to take chlorophyll everyday?An abundance of essential vitamins and minerals may be found in chlorophyll extracts, which also have great pro government, antibacterial, and antioxidant properties. Chlorophyll can be used daily without harm, albeit the recommended quantity varies depending on the type of green you eat. Consuming saffron milk, peppermint tea, clove tea, green tea, protein drinks, green vegetable smoothies, etc fiber-rich juices will drastically reduce you body fat over night.
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Why do you think toxicology is an important area of study in veterinary science?
Because some compounds that are not dangerous to humans can be exceedingly harmful to animals, toxicology is crucial in veterinary science.
What is veterinary science?Veterinary science is defined as concerned with preventing the spread of animal diseases to humans as well as the prevention, control, diagnosis, and treatment of diseases impacting the health of domestic and wild animals.
Toxicology is defined as a branch of study that aids in our comprehension of the negative consequences that drugs, events, or chemicals may have on humans, animals, and the environment. The Threshold of Toxicological Concern (TTC) is a notion that refers to the determination of a level of exposure for all chemicals beyond which there would be no appreciable danger to human health, whether or not there are chemical-specific toxicity data.
Thus, because some compounds that are not dangerous to humans can be exceedingly harmful to animals, toxicology is crucial in veterinary science.
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A researcher measured the temperature at which two different samples of double-stranded DNA denature (separate into single strands) Sample 1 denatured at a significantly lower temperature
than sample 2 did. Based on the data, the researcher claims that the DNA in sample 2 is composed of a higher percentage of guanine and cytosine than the DNA in sample Ils
Which of the following best supports the researcher's claim?
Sube
The bonds between guanine and cytosine are covalent bonds, which require more energy to disrupt than those between adenine and thymine
B
Guanine cytosine pairs denature at a higher temperature because they have more hydrogen bonds between them than adenine-thymine pairs do
с
Aderine thyminepalis require less energy to separate because adenine and thymine are both single-ring bases
D
Guinine cytosine pas require more energy to separate because one is purine and one is a pyrimidine
Answer:
The correct option is b
Explanation:
There are four nitrogenous bases that can be found in a DNA molecule; Adenine, Thymine, Guanine and Cytosine. The adenine on one strand can only bond (hydrogen bond) with the thymine on the complimentary strand (to form base pair) and vice versa while the guanine on one strand can only bond (hydrogen bond) with the cytosine on the complementary strand (to form base pairs) and vice versa.
There are three hydrogen bonds between Guanine and cytosine base pair while there are two hydrogen bonds between adenine and thymine base pair; hence, DNA samples with higher guanine-cytosine base pairs denature at a higher temperature than DNA samples with lower guanine-cytosine base pairs or with more adenine-thymine base pairs. This is because, it requires more energy to break the triple bonds between the guanine-cytosine base pairs than the double bonds of adenine-thymine base pairs.
From the description above, we can deduce that the correct option is b
Answer:
the correct answer is D
Explanation:
i have checked the answer in a flashcard
What happens when humans bum fossil fuels?
O Carbon is released into the atmosphere.
O Carbon is removed from the atmosphere.
O Carbon is added to the the carbon cycle.
O Carbon is destroyed.
Who is the first discovered plants were made of cells?
Answer: PLEASE MARK ME AS BRAINLIST
Explanation:
The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.
the German botanist Schleiden proposed that all plants are made up of plant cells. Thank you.
Answer:
Robert Hooke - 1965
Explanation:
3. Look at the image below, from the Gizmo. What must be true about this runner's graph?
Answer:
The graph of the runner must include the point (3.25, 25). [Students may also respond that the graph has a positive, or uphill, slope at that point. This is because the runner is facing forward in the image, so he must be running from left-to-right.]
What happens to the chromosomes during interphase?
Answer:
The cell develops during interphase, and the nuclear DNA is duplicated.
I hope this helps :)
Where and how is a star born?
Answer:
Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.
Explanation:
Answer:
Through sex and in the vagina
Explanation:
I don’t understand stand help me
Answer:
With what ive read I’m assuming its A
Explanation:
Why is it important for cells of multicellular organisms to undergo mitosis? A) mitosis allows for reproduction B)mitosis increases variation within an organism. C) mitosis produces cells that are different from the original dividing cell. D)mitosis produces cells that are identical to the original diving cell
The answer is A mitosis allows for reproduction. This is because during mitosis two identical daughter cells are created which can contribute to an embryo.
Hope this helps ! <3
It is important for cells of multicellular organisms to undergo mitosis because mitosis produces cells that are identical to the original dividing cell. Thus, the right option would be D.
Mitosis involves the division of vegetative cells and it results in daughter cells with the same morphology and genome as the parent cell.
The division of vegetative cells in multicellular organisms will ensure that damaged or dead cells are replaced with cells of similar morphology and genome.
Apart from replacing dead or damaged cells, mitosis also allows multicellular to grow in size by allowing similar cells to spring from existing cells.
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why is the tongue considered an organ?
Answer:
The tongue can be viewed as an organ. It’s comprised of various tissues that give it its own functions that no other organ can replace, it has its own innervation, irrigation, lymphatic and venous drainage. Those are the characteristics that define an organ.
Answer:
Hmm.
Explanation:
The tongue is considered an organ because it has a special job to do.
'Organ, in biology, a group of tissues in a living organism that have been adapted to perform a specific function.
'The tongue is a muscular organ in the mouth of most vertebrates that manipulates food for mastication and is used in the act of swallowing. It has importance in the digestive system and is the primary organ of taste in the gustatory system.'
Territorial animals like spiders that fight off intruders would be expected to be _______. a. regularly distributed b. randomly distributed c. clustered together d. b and c
Answer:A
Explanation:
I took test on edge. and it was right
Territorial animals like spiders should be distributed regularly. If they clustered close, they may all die at once and lose territory. So, they're regularly disseminated to battle predators and intruders and protect their territory.
Why do animals defend their territory?Territorial behavior is adapted in many different ways; for example, it may allow an animal to mate without being interrupted or to rear its young in an area where there will be little competition for food. Both of these things are adaptive. In addition to this, it can minimize overcrowding by preserving the ideal space between individuals within a community.
It is reasonable to anticipate that territorial animals such as spiders will routinely distribute themselves. They had to do this in order to protect their area because if they huddled together, there was a greater chance that they would all perish at the same time, which would result in the loss of territory. As a result, in order to prevent this from happening, they are routinely dispersed, and they are able to defend their region against invaders and predators.
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