After one round of DNA replication, _____________ of the DNA will contain only 14N, _____________ of the DNA will contain only 15N, and _______________ of the DNA will be of an intermediate density.
Answer:
After one round of DNA replication, none of the DNA will contain only 14N, none of the DNA will contain only 15N, and all of the DNA will be of an intermediate density.
Explanation:
In order to rule out the conservative model of DNA replication and discover that it in fact a semi-conservative model, this technique was employed to check for what ratio of N15 and N14 was present in cells that had undergone the process of replication. The former would've resulted in equal densities of both N14 and N15.
A (____) is a statement saying that what is presented is true.
Answer:
A ‘receipt’ is a statement saying that what is presented is true
Explanation:
Hope this helps!（づ￣3￣）づ╭❤～
answer: a receipt is a statement saying that what is presented is true
Explain how environmental and health costs are affected by the production of uses of goods and services in their marketplace.
Answer:
Demand and cost of a product is inversely proportional to each other. The environmental and health costs will also inversly proportioanl to the production of uses of goods and services in their marketplace.
It means, if there will be more production or uses of goods and services in the market, the cost of the environmental and health costs will decrease.
For example: if there are 4 to 5 general hospitals in an small area and people infected with partcular disease are more then the health cost in this area will be less or limited.
Explain
Give two examples of how abiotic factors are influenced by biotic factors?
ANSWER:
The abiotic factors will define which organisms are able or not to live in a specified place. The living organisms will constitute the biotic factors, which define if and how can an organism live in a specified environment. So, the abiotic factors are controling the biotic factors of an environment.
(IF THIS HELPED CAN YOU GIVE ME A BRAINYLEST)
Answer:
The abiotic factors will define which organisms are able or not to live in a specified place. The living organisms will constitute the biotic factors, which define if and how can an organism live in a specified environment. So, the abiotic factors are controlling the biotic factors of an environment. Explanation: brainlest?
Chromosomes are made of
and contain two identical chromatids.
Answer:
these chromatids separate longitudinally to become individual chromosomes.
one chromosomes is composed of and DNA molecule
Answer:
DNA
Explanation:
Chromosomes are made of DNA and contain two identical chromatids.
Select all that apply.
Vectors that some protozoa use to transfer disease are
flies
fleas
mosquitoes
ticks
Answer:
Mosquitoes, Fleas and Ticks.
unsaturated fatty acids have __________________ in the carbon chain and are not home
Answer:
Explanation:
unsaturated fatty acid have one to six double bond in the carbon chain
States of matter depend in part on the ------- of an item.
Fill in the blank: The ability of a group of organisms to change, or ______
time helps populations survive in an ever-changing environment. *
A. Homeostasis
B. Metabolism
C. Stimulus
D. Evolve
The ability of a group of organisms to change, or ___Stimulus___
time helps populations survive in an ever-changing environment.
A stimulus is a detectable change in the physical or chemical structure of an organism's internal or external environment.
If you have a mass of 50 g and a density of 2 g/mL, what is the volume?
Answer:
volume = 25ml
Explanation:
Baking soda is _____. an acid a base a neutral
Answer:
Baking soda ,also known as sodium bicarbonate,is a base
Answer:
Baking soda is a base not an acid or a neutral
Which of the following statements is true? The rigidity of a cell wall causes plants to be sedentary. Primary cell walls are more rigid than secondary cell walls. Since they have cell walls, plant cells do not have cell membranes. A wilting plant will have a full central vacuole.
Answer:
The correct answer is : The rigidity of a cell wall causes plants to be sedentary.
Explanation:
Plant cells have an extraordinary organelle present outside of cell membrane known as a cell wall, which makes the cell more rigid and strong. The primary capacity of a cell wall is to provide structural support.
It additionally gives the plant a specific level of inflexibility, which permits it to become extremely tall without falling under its own weight. The drawback is the absence of versatility Which is the reason plants are inactive and incapable to move.
Thus, the correct answer is : The rigidity of a cell wall causes plants to be sedentary.
Answer:
i just want the other guy to get brainiest
Explanation:
its C
Kendra wishes to build a model of a carbohydrate molecule, ideally containing as many monomers as possible. Which set should she choose?
Answer:
Polysaccharides.
Explanation:
Polysaccharides are sets of carbohydrates formed by the union of hundreds and miles of carbohydrate molecules, the set having the largest possible number of monomers.
Carbohydrates are energetic molecules that are also present as structural molecules, being essential for the maintenance and functioning of the organism. Carbohydrates can be presented in monosaccharide, disaccharide and polysacride sets.
Polysaccharides
A polysaccharide is a type of carbohydrate. It is a polymer made up of many sugar subunits, called monosaccharides. The main functions of polysaccharides are structural support, energy storage, and cellular communication. For example: cellulose, chitin, glycogen, starch, and hyaluronic acid. Carbohydrates are energetic molecules that are also present as structural molecules, being essential for the maintenance and functioning of the organism. Carbohydrates can be presented in monosaccharide, disaccharide and polysaccharide sets.Learn more:
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Hewo dear fwiends may you pwease help me to see if I'm cworrect uwu. I thwink its C x3
Answer:
B B BBB BB OOOHHH YAS x3
Explanation:
it u made a frost wedge a wedge is a small crack
and when something freezes it expands out soooooo ye
Answer:
WHAT HE SAID!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
You work for a company that manufactures food products. a new "wonder food" contains only carbon, oxygen, and hydrogen. at this point, your research can say with certainty that the food ______
a. includes proteins.
b. includes nucleic acids.
c. could only be made of triglycerides.
d. could only be made of carbohydrates.
e. does not include proteins or nucleic acids.
Answer:
d
Explanation:
The correct answer would be that the food could only be made of carbohydrates.
Proteins contain other elements such as nitrogen and sulfur in addition to carbon, hydrogen, and oxygen while nucleic acids and triglycerides contain phosphorus in addition to carbon, hydrogen, and oxygen.
The only chemical substance that contains carbon, oxygen and hydrogen is carbohydrates.
Correct option: d
Answer:
a. include proteins
Explanation:
Name two kinds of lifeforms that are affected by
light polution.
Answer:
animals such as bees, squirrels, songbirds, and even humans. Nocturnal animals sleep during the day, and move about at night. These include animals such as moths, bats, frogs, and cats. Artificial light affects both, but in different ways.
Answer:
producers and primary consumers
aka.. plants and herbivors
Explanation:
I think one of the answers are C but I don't know what the other one is
This principle states that alleles separate during gamete formation.
• A. Law of Independent Assortment
B. Law of Dominance
.
C. Law of Segregation
D. Law of Multiple Alleles
Answer:
c. low of segregation is the correct answer
This principle states that alleles separate during gamete formation is Law of Segregation.
Option C is correct.
How do we explain?The Law of Segregation states that during gamete formation, the alleles of a gene segregate (separate) from each other, so that each gamete receives one allele from each parent and this means that each gamete will contain only one of the two alleles for a particular gene.
The Law of Segregation was first proposed by Gregor Mendel in 1865.
Option C is correct.
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Fungi are closer to animals than plants.
O True
O False
Answer:
true
Explanation: Fungi and animals are more closely related to one another than either group is to plants. This has been determined through molecular phylogenetic analyses. Fungal cells are organized into tube-like filaments called hyphae.
why can we use pulse rate to see the rate of cellular respiration
Answer:
Several changes take place in the body to enable this: the breathing rate and volume of each breath increases to bring more oxygen into the body and remove the carbon dioxide produced. the heart rate increases, to supply the muscles with extra oxygen and remove the carbon dioxide produced.
Explanation:
what is a gene and what is a genome??/
Answer:
A gene is the basic physical and functional unit of heredity, A genome is an organism's complete set of DNA, including all of its genes.
Explanation:
Why are solar energy and heat important to the global climate system?
Answer:
______________________________________
Solar power drives Earth's climate. Energy from the Sun heats the surface, warms the atmosphere, and powers the ocean currents.
______________________________________
Why are multiple forms of documentation used at the scene of a mysterious death (note taking, sketching, photography, or videography)?
Answer: They help reconstruct what happened the most precisely
There are reasons why multiple forms of documentation are used at scene of a mysterious death they include;
It helps in gathering as much information as possiblecan serve as evidence in court of law.By gathering as much information as possible, destruction of evidence is prevented, there will now be a lot of information to work with in other to arrive at the cause of the mysterious death.
By documenting the crime using various forms like note taking, sketching, photography or videography, will lead to an admissible evidence in a court of law.
Thus, it is important to use various forms of documentation so as to have as much information as possible, which can be used as evidence in a court of law.
Read more on documentation here
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The information above shows that silicon has both beneficial and detrimental effects on the human body. Given this information, think about other examples of materials or substances that can be both beneficial and detrimental at the same time. Research and write about two examples. Be sure to provide evidence to support your point of view.
Answer:
1. Iron (ferrous)
2. Zinc
Explanation:
Iron is a major component of hemoglobin which is responsible for the transportation of oxygen from lungs to all cells of the body, while excess iron has also negative effects on our body such as it causes liver disease (cirrhosis, cancer), heart attack, diabetes and sometimes it causes death. Zinc also plays a vital role in our body because it is a main component of all cells and also provide protection against microbes. It also needed for the production of DNA and protein. Zinc in excess amount causes copper deficiency, Nausea Stomach Pain and Diarrhea.
I chose d as my answer but please correct me.
When can a cell swell up ?
Answer:
Explanation:
The cell swells up when the concentration of water molecules outside the cell is more than the concentration of water molecules inside the cell. It is because the water moves from a region of higher concentration to a region of lower concentration due to osmosis. So the water molecules outside the cell will move inside the cell ( from higher concentration to lower concentration) and it will swell up.
This solution is known as hypotonic.
So the correct option is B.
Hope this helps
plz mark as brainliest!!!!!!
Answer: A
Explanation: When there is a higher concentration of water in the cell more than the surrounding area, then the cell tends to swell up, this is due to osmosis.
diseases can alter an organisms homeostasis. when you get sick and have a fever, what internal condition has changed
Answer:
Homeostatic Imbalance and Disease. Sometimes homeostats fail to perform properly. This can cause homeostatic imbalance, a condition in which variables in the internal environment are no longer maintained within normal ranges.
Explanation:
when you get sick and have a fever, what internal condition has changed it ultimately change the body's homeostasis. The body is unable to maintain the equilibrium of internal environment will lead to homeostatic imbalance.
What is homeostatic imbalance ?Homeostasis is mechanism where our body maintain balance and equilibrium which can be characterized physiologically or psychologically.
It is extremely important as it has a vital in maintenance of glucose levels, osmoregulation, regulate hormones, and body temperature.
It is otherwise called as thermoregulation as the body temperature is maintained by this process.
For example a person with cold, shiver to warm up while a person with high body temperature, sweat a lot in order to attempt cool their body.
Any kind of disruption lead to imbalance in equilibrium of the body called as homeostatic imbalance.
For instance, a homeostatic imbalanced person may not sweat properly, leads to overheat resulted in hyperthermia and heatstroke.
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Someone plss help me with number 6
I just needed it to be checked to see if it’s correct
Answer:
I think it's B
Explanation:
he discovered that the maggots were from eggs. as a generation
Which best describes when the body is working on counteracting an effect?
when hormone levels in the body are all equal
during a negative feedback loop
during a positive feedback loop
when the hypothalamus is signaling the pituitary gland
Answer: the answer is B or during the negative feedback loop.
Explanation: the body is trying to counteract the negative feed back.
During a negative feedback loop, the body is working on counteracting an effect. thus, option B is correct.
What are the differences between negative and positive feedback loops?Positive feedback loops amplify or exacerbate changes, moving a system farther from equilibrium and making it more unstable. Negative feedbacks tend to dampen or buffer changes; this tends to hold a system to some equilibrium state making it more stable.
A self-regulating system is a negative feedback loop, often known as an inhibitory loop. Increased output from the system restricts future production in a negative feedback loop. When the quantities of particular proteins or hormones in the body get too high, the body reduces their production.
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________ is the process which brings carbon from the atmosphere into the terrestial food when.
Answer:
respiration
Explanation:
When soil microbes (bacteria and fungi) decompose dead material, they break down larger carbon compounds into smaller compounds. This process releases CO2 to the surrounding soil and to the atmosphere in a process called soil respiration.