Answer:
Medications can be tested on the cancer culture before being injected into the patient.
Explanation:
Answer:
The answer is B, Medications can be tested on the cancer culture before being injected into the patient.
Explanation:
Describe what occurs between water molecules in hydrogen bonding. Draw a diagram, labeling the hydrogen bond.
Answer:
The molecules are attracted to their less negative side.
Explanation:
The Oxygen in the water molecule will share or the hydrogens lone atom leaving the hydrogen with a more positive charge like in the picture I've added. This happens with all water molecules leaving the oxygen with more electrons and ultimately the more negative side. And positive and negative forces attract, so the now "positive" hydrogens will bond with the now "negative" oxygens. They form bonds using polarity, and use a very strong dipole dipole effect.
what are the raw mineral needed for photosynthesis
Answer:
Water and carbon dioxide
Explanation:
Water and carbon dioxide in the presence of light, enter the cells of the leaf, where, in the presence of chlorophyll, photosynthesis takes place and sugar and oxygen are produced.
Albinism is inherited as autosomal recessive trait. The frequency of the disease in the population equals to 1:20 000. Calculate frequency of heterozygotes in population.
Answer:
0.0139- frequency of heterozygotes in the population
Explanation:
Let q to the power of 2 represents the frequency of the homozygous recessive (aa) = 1/20000 = 0.00005
This, q = √q^2 = √0.00005 = 0.007
Since p + q = 1
p = 1 - 0.007 = 0.993
Using the formula: p^2 + 2pq + q^2
Where 2pq represents the frequency of the heterozygotes, thing we have
2 x 0.007 x 0.993
= 0.0139
An idea that is supported by some evidence, but is not yet the basis for a field
of study is called a
Answer: trite a hypothesis
Explanation:
The basic idea of a hypothesis is that there is no pre-determined outcome. For a hypothesis to be termed a scientific hypothesis, it has to be something that can be supported or refuted through carefully crafted experimentation or observation.
Some salmon have been genetically modified to grow bigger and mature faster than wild salmon. They are kept in fish facilities. Which statement regarding genetically modified salmon is correct
Salmon that have been genetically engineered have generated debate because of worries about the potential environmental and health effects if they were to escape and interact with native populations.
How is the genetic makeup of salmon altered?Canadian researchers patented genetically altered (GM) salmon after introducing a promoter—the genetic equivalent of a "on-off" switch—from an ocean pout and a gene that controls growth hormones in Pacific Chinook salmon into the genetic makeup of an Atlantic salmon.
Do wild salmon contain genetically engineered fish?All Atlantic salmon, including genetically modified (GM) salmon, is farmed salmon. Because Atlantic salmon is an endangered species, there is no natural fishery.
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A stream of waters holds thriving bacteria. If drought conditions caused the stream to dry up, how would the bacteria most likely respond to survive?
Which inheritance pattern is more likely to affect males than females?
Answer:
karyotype. A display of the homologous chromosome pairs of a cell arranged by size and shape. hemophilia. -bleeding disorder where the blood fails to clot properly.
Explanation:
If the father has the pattern than more likely the son will get the gene. Same goes for the mother and daughter.
When vinegar and baking soda react, the mixture becomes cold to the touch and a gas and a new liquid substance are formed. Which best describes what is occurring in the reaction?
Answer:
answer B The reaction is chemical and exothermic.
Explanation:
because on my quiz its b.
The described chemical interaction between vinegar and baking soda is an endothermic reaction since it involves the absorption of energy, which causes the mixture to become chilly. The correct option is A.
What is endothermic reaction?A chemical reaction that is endothermic is one that increases the system's enthalpy through a thermodynamic process. A system engages in this process by absorbing energy from the environment, primarily thermal energy.
As a result, an endothermic reaction causes the system's temperature to rise while the environment's temperature drops.
Bonds are typically formed during endothermic processes, which demand energy input. Entropy of the environment is reduced during endothermic reactions.
Endothermic reactions frequently entail physical rather than chemical changes. The potential energy of the products exceeds that of the reactants in an endothermic process.
Thus, the correct option is A.
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Your question seems incomplete, the missing options are:
The reaction is chemical and endothermic.
The reaction is chemical and exothermic.
The reaction is non-chemical and endothermic.
The reaction is non-chemical and exothermic.
Complete the sentence choosing from the following words:
catalyse, denatured, digest, soluble, insoluble, energise, excreted, ingested
Digestion is the process of breaking down large food molecules into smaller molecules that are ________ .
Enzymes help to break down food because they ________
chemical reactions.
If the temperature of an enzyme gets too high, the enzyme is ________ .
Answer:
1. Soluble
2. Catalyze
3. Denatured
Explanation:
1. We eat in order to obtain energy. However, this food is often in a complex state and needs to be broken down into its simplest form. The process of digestion ensures this occurs in living organisms. Digestion is the process of breaking down large food molecules into a much more simpler molecule that can be passed on to the blood stream for absorption by cells. These simpler molecules must be SOLUBLE in water for them to be transported into each cell via the bloodstream.
2. The breaking down of food molecules described above is facilitated by certain proteinous chemical agents called ENZYMES. Enzymes are biological catalysts i.e. they help speeden up the rate of biochemical reactions in living systems. In the case of digestion, specific enzymes chemically acts on specific food molecules. For example, amylase acts on carbohydrates, protease acts on proteins etc.
3. As stated above that enzymes are proteinous, it means they possess the characteristics of proteins. One of those characteristics is the ability to get denatured by increase in temperature. High temperature causes an enzyme to lose its specific 3D shape, affecting its functionality. Hence, the enzyme is said to be DENATURED.
Energy released by fusion in the Sun is initially in the form of
visible light
gamma rays
ultraviolet light
infrared radiation
Answer:
gamma rays
Explanation:
Energy released by fusion in the sun is initially in the form of gamma rays.
[A gamma ray designates the high frequency electromagnetic radiation of a photon whose wavelength is less than 1 picometer which corresponds to frequencies greater than 300 exahertz.]
Answer:
gamma rays
Explanation:
Which best describes the structure of a DNA molecule?
Answer:
A
Explanation:
the best choose is A..........
Answer:
A double helix
Explanation:
if some apeks users have the same answer choice as me
The nitrogenous bases in DNA are held together by... A. Covalent Bonding
B. Iconic bonding
C. Hydrogen bonding
D. Van der Waals forces
Answer:
Hydrogen bonding
Explanation:
The nitrogenous bases form hydrogen bonds between opposing DNA strands to form the rungs of the twisted ladder or double helix of DNA.
What is the role of the MCR1 gene in determining a populations fitness for survival???please help it’s do today
CHILE DO U GO TO BLAIR HIGH SCHOOL
how life gets and shares energy?
Answer: Photosynthesis and the food chain.
O fitoplâncton é a base das cadeias alimentares marinhas ,estando presente apenas na zona fótica . Vc concorda com a afirmação justifique a sua resposta
Answer:
El fitoplancton se basa en la cadena alimentaria marina. Sin embargo, el fitoplancton significa mucho más porque forman la base y la base de la cadena alimentaria marina. Se les conoce como fitoplancton porque dependen de la luz para el crecimiento y el sustento de la vida fuera del hábitat marino. Se sabe que son responsables del 50% de la fotosíntesis de la Tierra, por lo tanto, son cruciales para la supervivencia humana. Las algas son un grupo importante de fitoplancton. Otros ejemplos incluyen cianobacterias y diatomeas.
Explanation:
LAST QUESTION WILL GIVE BRAINLIEST!!!!!PLS SHARE YO SMARTNESS!!!!!!!
1. Which two substances have parts of their cycles in which the substance must be "fixed"?
A) nitrogen and water
B) sulfur and oxygen
C) water and phosphorous
Answer:
its carbon and nitrogen
Explanation:
took the quiz
Carbon and nitrogen are two substances that have parts of their cycles in which the substance must be "fixed". Thus, the correct option for this question is D.
What is Cycle?A cycle may be defined as the series of steps that regularly run in a repeated manner to deliver the needs of organisms. Examples include the carbon cycle, the water cycle, etc.
Carbon is found as a solid in all of their isotopes but nitrogen is typically a gas that is present in 78% of the earth's atmosphere.
Option D is missing in the question which is carbon and nitrogen.
Therefore, the correct option for this question is D.
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The best method to reduce the threat of overfishing would be to . The risk of oil spills could be reduced by increasing the use of , which should help oil consumption. If an oil spill does occur, could be used to help remove the oil so the ecosystem may more quickly recover.
Answer:
The best method to reduce the threat of overfishing would be to limit the harvest of particular fish species. The risk of oil spills could be reduced by increasing the use of renewable energy sources , which should help decrease oil consumption . . If an oil spill does occur, bioremediation could be used to help remove the oil so the ecosystem may more quickly recover.
Explanation:
African penguins, which inhabit the coasts of southern Africa, were classified as an endangered species in 2010. Two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. Overfishing depletes the food supply of African penguins.
The best method to reduce the threat of overfishing would be to____
1. Construct a corridor to connect penguins and fish
2. Limit the harvest of particular fish species
3. perform a population survey on several fish species
The risk of oil spills could be reduced by increasing the use of
1. Natural resources
2. Renewable energy sources
3. Nonrenewable energy sources
, which should help______ oil consumption
1. Increase
2. Decrease
. If an oil spill does occur, __________ could be used to help remove the oil so the ecosystem may more quickly recover.
1. Bioremediation
2.reforesation
3. recycling
Overfishing can be prevented by formulating policies to limit the harvest of fishes on the basis of species they belong to.
Opting for renewable energy, such as solar or wind energy, would greatly reduce the dependence on non-renewable energy sources such as fossil fuels. Reduction in oil dependence will in turn reduce the risk of oil spillage into the environment. as well as reduce oil consumption.
Spilled oil can be removed from the ecosystem by relevant bioremediation processes. Bioremediation involves the use of biological species to clean up pollutants (such as spilled oil) from the environment.
Answer:
blank 1- limit the harvest of particular fish species
blank 2- renewable energy sources
blank 3- decrease
blank 4- bioremediation
The best method to reduce the threat of overfishing would be to limit the harvest of particular fish species. The risk of oil spills could be reduced by increasing the use of renewable energy sources , which should help decrease oil consumption . . If an oil spill does occur, bioremediation could be used to help remove the oil so the ecosystem may more quickly recover.
Explanation:
Which of the steps of cellular respiration occur IN the mitochondria? Choose ALL that apply. A) Krebs Cycle B) Glycolysis C) Electron Transport Chain
Answer:
The answer is option A
Kreb's cycle take place in mitochondria
Whereas electron transport chain in the inner membrane
And glycolysis occurs in cytoplasm
Explanation:
The steps of cellular respiration that occur in the mitochondria are:
A. Krebs Cycle
C. Electron Transport Chain
Cellular respiration can be defined as series of metabolic reactions typically occurring in all living cells, so as to produce energy in the form of adenosine triphosphate (ATP).
Basically, there are three (3) main steps involved in cellular respiration and these include:
GlycolysisKrebs cycleElectron transport chainKrebs cycle is an aerobic reaction that occur in the mitochondria of both prokaryotic and eukaryotic cells and in the presence of oxygen, to produce carbon dioxide (), two (2) adenosine triphosphate (ATP), six (6) NADH, and two (2) FADH.
Similarly, electron transport chain is also an aerobic reaction that occur in the mitochondria.
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Which statement best describes the events that take place within the
mitochondrial membrane?
O A. Electrons gain energy as they move.
OB. The electron transport chain produces ATP.
O C. The Krebs cycle breaks down glucose.
O D. Kinetic energy is produced by pyruvate.
Answer:
B
Explanation:
took the quiz
Have a good one
Electrons flowing along a protein pathway help produce ATP, according to the best description of what happens within the inner mitochondrial membrane. The correct option is B.
What is an electron transport chain?The electron transport chain is a collection of four protein complexes resulting in an electrochemical gradient that leads to the formation of ATP in a process known as oxidative phosphorylation.
It occurs in mitochondrial membranes during both cellular respiration and photosynthesis.
Thus, the correct option is B.
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What is the relationship between the nucleotides, nucleic acids, and DNA?
Answer:
Explanation:
Nucleotides are building blocks of nucleic acids (DNA and RNA). A nucleic acid contains a chain of nucleotides linked together with covalent bonds to form a sugar-phosphate backbone with protruding nitrogenous bases. For example, DNA contains two such chains spiraling round each other in the famous double helix shape.
Which of the following statements is correct?
DNA reads and translates the RNA code.
DNA synthesizes protein.
RNA reads and translates the DNA code.
RNA contains the genetic code.
Answer:
3rd
Explanation:
Can someone help me with this question please?
Answer:
How you should explain so it wont look plagerized:
Explanation:
I believe that the most important part of a plant is the roots and the stem because the roots carry the nutrients and the stems process it so the plant stays healthy and alive!
Hope this helps.
Have a good day!
(Brainliest would be appreciated)
One of the first explanations of evolution was put forth by a French biologist, Jean-Baptiste
Lamarck. He theorized that animals, in responding to different environments, adopted new
habits. Their new habits caused them to use some organs more and some organs less, which
resulted in the strengthening of the former and the weakening of the latter. New characters
thus acquired by organisms over the course of their lives were passed on to the next
generation. His theory proposed this process of use and disuse, repeated over many
generations, was how species evolved.
He was wrong. Why?
Answer:
Traits acquired during an organism's lifetime cannot be passed
Explanation:
The law of use and disuse of organs as postulated by Jean Lamarck was wrong due to the fact that environmentally acquired characters cannot be passed to offspring.
Changes to organisms that are not the level of the gene cannot be passed to the offspring. For example, a wrestler that got big muscles due to constant work out cannot pass big muscles to his offspring. The offspring will need to work out in order to have big muscles. This is because big muscles in the wrestler is environmentally acquired.
Only changes that happen to the genome of an organism (mutation) can be passed to offspring.
A carefully placed paper clip can float on top of water without sinking Which property of water allows the paper clip to float
Answer:
High surface tension or just Surface tension
Which describe the effects of climate on the rate of weathering? Select three options.
Answer:
Warm climates favor chemical weathering.
Cold climates favor mechanical weathering.
Chemical reactions occur faster at higher temperatures.
Is domestication the process where animals are trained to do tricks useful for human needs?
Answer:
Not exactly, Domestication is the process of adapting wild plants and animals for human use.
Explanation:
domestication is not the process where animals are trained to do tricks useful for human needs instead it is the process of adapting wild plants and animals for human use.
If you have the two traits for a plant include T-tall, t-short, G-green seed and g-yellow seed. If you cross a homozygous tall, yellow seeds (Parent 1), with a herezogous for both traits (parent 2), match the following.
Hint: do the cross
Column A
1.
TTgg:
TTgg
2.
TtGg:
TtGg
3.
1:1:1:1:
1:1:1:1
4.
2:2:
2:2
5.
What percent will be Tall with yellow seed:
What percent will be Tall with yellow seed
6.
TTGg, TtGg:
TTGg, TtGg
Column B
a.Parent 1
b.50%
c.Genotype Ratio
d.TTgg, Ttgg
e.Phenotype Ration
f.Parent 2
g.75%
h.25%
i.Genotypes for tall, green seed
Answer:
1. Parent 1 is TTgg
2. Parent 2 is TtGg
3. The genotype ratio is 1:1:1:1
4. The phenotype ratio is 2:2
5. 50% has tall and yellow seeds
6. Genotype for tall and green seed is TTGg, TtGg
Explanation:
The parent 1 is homozygous tall, yellow seeds, therefore the genotype is TTgg, While parent 2 is herezogous for both traits, therefore the genotype is TtGg.
Crossing the two parents gives children with the following traits:
Parent 1 gamete: Tg Parent 2 gamete: TG Tg tG tg
TTGg, TTgg, TtGg, Ttgg
The cross gives: TTGg, TTgg, TtGg, Ttgg
Therefore, 2 is tall and green, 2 is tall and yellow
The phenotype ratio is 2:2
The genotype ratio is 1:1:1:1
1. Parent 1 is TTgg
2. Parent 2 is TtGg
3. The genotype ratio is 1:1:1:1
4. The phenotype ratio is 2:2
5. 50% has tall and yellow seeds
6. Genotype for tall and green seed is TTGg, TtGg
The part of a nucleus with neither a positive nor a negative charge.
Answer:
Unlike protons that have a positive charge, and electrons that have a negative charge, neutrons are neither positive nor negative; they are neutral. Neutrons and protons are what make up the nucleus of the atom
Answer:neutron
Explanation:
From the word neutron means its doesn't carry any charges .
Leeches often attached to the tongue of a crocodile and consume the crocodiles blood as food the Egyptian Plover is a bird that flies into the mouth of the crocodile and eats the leeches the crocodile do not harm the plovers the relationship between a crocodile and the leech is an example of _________?
Answer: mutualism
Explanation:
According to the information given in the question, the relationship between a crocodile and a leech is an example of Commensalism.
What do you mean by Species interaction?Species interaction may be defined as a type of biological phenomenon through which the population of one species interacts with populations of other species that live in the same locality. There are various types of species interaction that can commonly be found in the nature and ecosystem.
According to the context of this question, the individuals of leeches attached to the tongue of a crocodile consume the crocodile's blood as food. In this way, the population of leeches gets benefits from the crocodile by taking their blood as a source of food and energy.
The Egyptian Plover is a bird that flies into the mouth of the crocodile and eats the leeches the crocodile does not harm the plovers. In this way, crocodiles do not get any harm or benefit from the population of leeches. So, this type of + and 0 interaction is known as Commensalism.
Therefore, the relationship between a crocodile and a leech is an example of Commensalism.
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4. Does natural selection act on an organism's
