Answer:
Explanation:
Phloem cells are conducting vessels that are found in vascular plant. They are used in the transport of photosynthate produce during photosynthesis from the source of production to other parts of the body.
It consist of sieve elements, which are the conducting vessel that aids transport of sugar round the body. They are very active before maturity at mature they are no longer in use.
Companion cells are used in replacement of sieve element at maturity, they function in metabolism together with the sieve tube Translocation is the transport or movement of sugar round the body.
Girdlings is the removal of the bark of a plant this can inhibit active transport of food.
Non-reducing sugar are monosacharrides such as glucose that are produce and transported round the body of the plant.
P-protein are found in the plants sap usually in large amount in the sieve elements.
What happens during G2 phase?
Answer:
Gap 2 (G2): During the gap between DNA synthesis and mitosis, the cell will continue to grow and produce new proteins.
Answer provided by CELLS Alive
both ethanol and glycine are small molecules of approximately equal molecular weight. However, ethanol is much more membrane permeable than glycine. What accounts for the large difference in membrane permeability between ethanol and glycine
Answer:
Ethanol is a non polar molecule.Therefore it passes through the cells membrane easily by diffusion like other non polar like CO2 and water.However, glycine is an amino acid ( the simplest amino acid) a charged molecule /polar molecule/.it can not therefore pass through the bilayer by simple diffusion because of the phospholipid bi-layers. Therefore special transport proteins are needed for its passage across the cell membrane.
Example-GLYT 1 and 2 are the carrier proteins specific for glycine transport across the membrane.
G
Explanation:
Building large manufacturing facilities can affect
ecosystems by increasing the
Answer:demand for resources such as fossil fuels
Explanation:
Building large manufacturing facilities can affect ecosystems by increasing the demand for resources such as fossil fuels.
Thus, The breakdown of buried, carbon-based organisms that perished millions of years ago produces fossil fuels. They produce deposits rich in carbon, which are taken out and burned to provide energy.
They presently provide about 80% of the world's energy and are non-renewable. A vast array of items, including plastic and steel, are also produced using them. Coal, oil, and gas are the three forms of fossil fuels.
Global warming is mostly caused by emissions from fossil fuels, according to the Intergovernmental Panel on Climate Change (IPCC). 89% of the world's CO2 emissions in 2018 came from industry and fossil fuels.
Thus, Building large manufacturing facilities can affect ecosystems by increasing the demand for resources such as fossil fuels.
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Calculate the efficiency of glycolysis if 12 kcal of energy are required to transfer energy from glucose to ATP.
Explain please
Answer:
The ATP has a full meaning . If you get to know the full meaning you will understand it
Samples of the octapeptide AVGWRVKS are subjected to proteolytic cleavage by either trypsin or chymotrypsin. Select the most appropriate technique for separating the digestion products of AVGWRVKS if cleaved by trypsin. salting out gel‑filtration chromatography dialysis ion‑exchange chromatography Select the most appropriate technique for separating the digestion products of AVGWRVKS if cleaved by chymotrypsin.
A. dialysis
B. gel‑filtration chromatography
C. ion‑exchange chromatography
D. salting out
Answer:
If cleaved by trypsin you will need to do gel-filtration, if cleaved by chymotrypsin you will need to do ion-exchange.
Explanation:
If you have a concern about fluoride in your drinking water, how do you get more information?
Answer:
Contact the Centers for Disease Control and Prevention (CDC).
Explanation:
Which puppy might have been placed into this litter by mistake
In the human nervous system, the brain is an example of what level of organization? a. cell b. tissue c. organ system d. organ
Answer:
d. organ
HOPE it helps!!!Answer:
The answer is the organ
Explanation:
In each of the scenarios, an individual heterozygous for the indicated gene or genes is crossed with an identical heterozygous individual. Predict the number of different phenotypes that would be observed among the progeny of such a cross.
Scenario 1 : R is completely dominant to r.
Scenario 2: R is codominant with r.
Scenario 3: R and S are completely dominant to rand s, respectively; R and S are linked by 15 m.u. and do not interact with each other.
Scenario 4: Genes R and S perform the same function; R and S are completely dominant to r and s, respectively; and R and S are unlinked.
Scenario 5: R and S are completely dominant to r and s, respectively; R and S are linked by 10 m.u. and show dominant epistasis.
Answer:
Explanation:
Scenario 2: R is codominant with r.
Scenario 3: R and S are completely dominant to rand s, respectively; R and S are linked by 15 m.u. and do not interact with each other.
Scenario 4: Genes R and S perform the same function; R and S are completely dominant to r and s, respectively; and R and S are unlinked.
Scenario 5: R and S are completely dominant to r and s, respectively; R and S are linked by 10 m.u. and show dominant epistasis.
How has human activity changed the planet?
Answer:
a lot of things
Explanation:
you see, we have polluted the planet, and if we keep on doing it, then the planet will die
Explanation:
human impact on the environment or anthropogenic impact on the environment includes changes to biophysical environmsnts and ecosystems, biodiversity, and natural resources caused directly or indirectly by humans including global warming, environmental degradation (such as ocean acidification) etc
HHH
НОН
HHH
но-н
нЩн
нон
HHH
HHH
HHH
List the number of each atom in the formulas above:
Н
О
0
Answer:
According to the diagram above, there are 8 Hydrogen, 1 Oxygen and 3 Carbon .
Answer:
3 carbons
Explanation:
Chemical equilibrium results if_____.
Answer:
what he said ^
Explanation:
i think...
Photon energy is proportional to which of the following?
period of the light wave
frequency of the light wave
speed of the light wave
color of the light wave
PLZ ANSWER 20 POINTS
is the relationship linear,exponential, or neither? (9,13) (14,16) (19,19) (24,22)
Answer:
Linear
Explanation:
If you were to put this in a table, the rate of change would be constant
The diffusion spot diameter with one crystal at 15 min ( mm) is 59 . The rate of diffusion with one crystal So how would I convert this 59 to ( mm/h)?
Answer:
This is straight forward.If there are 60 minutes in one hour, then to convert minutes to hours as requested, simply divide the number of minutes given by 60.Thus if you divided the 59 by 60 it gives you what?round the answer to whole number.
When there is a moment of any solute present in the solution from high concentration to low concentration area is called diffusion.
It will take 0.25 hours to diffuse one crystal.
This can be calculated by:
Given,
Time for one crystal diffusion = 15 minDiameter for one crystal diffusion = 59 mmIn 1 hour there are 60 minutes.
60 minutes = 1 hour.
Then 15 minutes = ? hours
[tex]\dfrac{15 \; \text{minutes}}{60 \; \text{minutes}} = 0.25[/tex]
Therefore, to diffuse one crystal of it will take 0.25 hours.
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What is one reason why we study properties of minerals?
SCIENCE
Answer:
To identify minerals.
Explanation:
That way, we can know which minerals react to which tests.
-Bella,
BrainlyBluebell
Shortly after a stream dried up, you noticed a change in the field mouse population coat color variation. When the stream was flowing, there were two populations, one with darker coats and one with lighter coats. After the stream dried up, mice with darker coats were being born into the lighter coat population and vice versa.
a. True
b. False
Answer:
a. True
Explanation:
When the stream dried up darker coat mice were seen into the lighter coat population and vice versa because of the natural selection process.
Mice change their coat color by adapting the changes in the stream flow and evolve their coat either dark or light that provides camouflage so predators won’t see them and they are able to survive in the environment. Mice have the advantage of surviving long and they are able to pass their genes to the offspring.
Hence, the given statement is true.
Solid, gas, and liquid Which states of matter have a set shape? Explain why this is, based on the animation you observe for the different states of matter. Which states of matter have a set volume? Explain this based on the animations you observe for the different states of matter?
Answer:Solid has a set shape. Solid can move but gas and liquid is more flexible than solid. Solid has a fixed volume while liquid and gas takes the volume of its container. Solid stays in one place while gas and liquid is flexible.
Explanation:
ASAP PLEASEEE HELP ME
Remember monomers and polymers? DNA is what type of polymer?
A.) Protein
B.) Nucleic Acid
C.) Lipid
D.) Carbohydrate
Answer:
polynucleotide "carbon" sugar so I would say B or D
Explanation:
3. What is the name of the process by which evolution occurs?
Answer:
Evolution is the process of genetic change from one generation to the next and may be caused by several methods. In essence, evolution occurs when some individuals or some alleles (gene types) reproduce themselves more than others,increasing their prevalence in subsequent generations.
Explanation:
Eating disorders are caused by all of the following factors EXCEPT:
A. psychological factors
B. genetic factors
C. economic class
D. financial factors
Please select the best answer from the choices provided.
Ο Α
О В
О С
OD
Answer:
C
Explanation:
Eating disorders are caused by all of the following factors except economic class. Thus, option C is correct.
What is Eating disorders?Eating disorders could have the serious, or the life-threatening consequences. As the result, it has been critical to seek the treatment for these conditions. Before the doctor can treat an eating disorder, the condition that must be diagnosed. Some people may deny that there has the problem.
Disordered eating has been refers to the variety of the irregular eating behaviors that may or may not warrant the diagnosis of an eating disorder. Eating disorders, such as the anorexia nervosa (AN) and bulimia nervosa (BN), are the diagnosed disease using specific and narrow criteria.
Therefore, Eating disorders are caused by all of the following factors except economic class. Thus, option C is correct.
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List 3 commercial uses of sponges
The Ceramic industry. It is used for finishing on the lathe machine. ...
Home decorating/painting. The sponge buffering is a colouring technique used in DIY on furniture and accessories and on large surfaces such as walls and ceilings. ...
Footwear Manufacturers.
Answer:
Some commercial uses of sponges are
Personal hygiene: The sponge has many natural properties. It retains water, does not drip and releases water only when slight pressure is applied. Many people prefer to purchase the natural sea sponge because of its characteristics for deep cleansing the face, its ecological properties and most of all does not give allergic reactions.
Decor : In private homes, in hotels and on yachts, it is very common to see displays of natural sponges as part of furnishing.
Painting: The sea sponge is used in the restoration of art, for dry cleaning of frescoes and paintings
Hope this helps!
-Quinn <3
1. What are the two types of digestion?
Answer:
Mechanical digestion
Chemical digestion
Explanation:
Food is physically broken into smaller parts. For instance, by chewing.
Food is broken down by acids and enzymes into its basic units.
Brian's eighth grade biology class is conducting a scientific investigation to find out what types of rock the school is built on. The class goes out to collect rocks from an exposure at the edge of the school property. Which scientific process is the class involved in when they do this
Answer:
Gathering evidence.
Explanation:
Scientific evidence refers to the information obtained by research or observation.t This is the root of the scientific method because it's how an investigator evaluates different ideas, theories, or hypotheses. The mechanism of science involves explaining the phenomena we see in the world that match the data one has collected for the purpose. If one's theory doesn't match the evidence, then it needs to be revised. Therefore collecting evidence is a significant part of scientific investigation.
which would provide the body with the most energy ? a.forming bonds between to amino acids b.braking the bonds in a monosaccharide c.braking a single carbon bond d.creating bonds to form a carbohydrates
Answer:
d creating bonds to form a carbohydrate
Explanation:
A receptor is a structure that detects stimuli. The stigma (eyespot) of Euglenoids detects ____, assisting with phototaxis. A. light intensity and direction B. vibrations C. chemicals D. sound frequency and direction E. temperature change
Answer:
The correct answer is option A, that is, light intensity and direction.
Explanation:
A photoreceptive organelle witnessed in the motile or flagellated cells of unicellular photosynthetic species like euglenoids and green algae is known as the stigma or the eyespot apparatus. It permits the cells of the organism to detect the intensity and direction of the light and react towards it.
This assists the organisms to either swim away from the light known as negative phototaxis, or to swim towards it known as positive phototaxis. The eyespots are the basic and the most typical eyes witnessed in nature. The eyespots comprise bright areas or orange and red granules of pigment and photoreceptors.
how much is 300000 *
Answer:
300,000
Explanation:
It is 30% of a million and quite a bit of money that can be used to buy a house.
Answer:
300000
Explanation:
lol easyyy
What are examples of harmful mutations
Answer:
One example of a harmful mutation is an animal's different coloring than others in its species. If a deer was albino, it would have a much harder time blending in, escaping predators and most likely have trouble finding a mate.
Explanation:
Which eras ended with a mass extinction?
O A. Paleozoic and Precambrian
O B. Mesozoic and Paleozoic
OC. Mesozoic and Cenozoic
O D. Cenozoic and Paleozoic
B. Mesozoic and Paleozoic eras ended with mass extinctions.
What is Mass extinctions?Mass extinctions are periods in Earth's history when a significant proportion of the planet's biodiversity is wiped out in a relatively short period of time.
These events have occurred several times throughout Earth's history, and they are typically associated with major geological and environmental changes.
The Mesozoic era, which lasted from about 252 to 66 million years ago, ended with the Cretaceous-Paleogene extinction event. This event was likely caused by the impact of a large asteroid or comet, which triggered a range of environmental changes, including wildfires, acid rain, and a nuclear winter-like effect.
The event is most famous for wiping out the dinosaurs, but it also resulted in the extinction of many other species, both on land and in the oceans.
The Mesozoic era ended with the Cretaceous-Paleogene extinction event, which wiped out the dinosaurs and many other species.
The Paleozoic era ended with the Permian-Triassic extinction event, which was the largest mass extinction in Earth's history, and resulted in the loss of approximately 96% of all marine species and 70% of land species.
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Your mother points out to you a magazine article that says better nutrition is the reason modern Americans are taller than Americans of two centuries ago. What is a valid statement that would contradict this?
Answer:
This is true, because the advent of genetic engineering and different nutritional researches have greatly enhanced the Nutritional values in foods, with resultant increases in the growth and development of cells and tissues from increase growth hormones metabolism. However, reduction in the outbreak of disease, due to advancement in medical research and drug manufacturing are another factors which may contribute to this
Explanation:
