What is the main reason that it takes 2 to 3 minutes for the reaction to occur between sucrose and sulfuric acid in the dehydration of sucrose? the activation energy needs to be overcome in the reaction. the activation energy must be removed from the intermediates. the sulfuric acid has to be consumed before the reaction takes place. the sucrose molecules must rearrange to become the catalyst.
The main reason for this activity is the activation energy needs to be overcome in the reaction.
What do you mean by Dehydration?Dehydration may be defined as a process where there is a removal or loss of water takes place from something.
When the reaction between sucrose and and sulfuric acid is carried, it may leads to dehydration of sucrose. As a result of this, activation energy requires to come up in the reaction.
Therefore, the main reason for this activity is the activation energy needs to be overcome in the reaction.
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Answer:
A. the activation energy needs to be overcome in the reaction
Explanation:
How does the structure of the water molecule lead to its
ability to dissolve polar compounds?
Answer:
It is polar, allowing for the formation of hydrogen bonds, which allow ions and other polar molecules to dissolve in water. Therefore, water is an excellent solvent. The hydrogen bonds between water molecules give water the ability to hold heat better than many other substances.
Characteristics of animal cells include which of the following? Select all that apply.
no cell wall, only plasma membrane
large hypertonic vacuole
no chlorophyll or chloroplasts
cleavage furrow
cell plate in cell division
Answer:
No cell wall only plasma membrane.
Explanation:
The cells of animals lack wall and chlorophyll
Answer:
no cell wall, only plasma membrane
no chlorophyll or chloroplasts
cleavage furrow
Explanation:
Everything else are characteristics of plants cells.
Use the drop-down menus to determine which structures of the exocrine system are described below. secrete mucus that protect organs secretes enzymes that aid in digestion secrete tears keep the skin hydrated and soft
Answer:
✔ goblet cells
secrete mucus that protect organs
✔ pancreas
secretes enzymes that aid in digestion
✔ lacrimal glands
secrete tears
✔ oil glands
keep the skin hydrated and soft
Explanation:
On edge
Answer:
goblet cells: secrete mucus that protect organs
pancreas: secretes enzymes that aid in digestion
lacrimal glands: secrete tears
oil glands: keep the skin hydrated and soft
whats a prokaryote? what is a eukaryote?
Answer:
eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not
The plant cellwall is made up of carbohydrate calked chitin.true /false
The plant cell wall is made up of a carbohydrate called chitin
FALSE! It's made out of cellulose :)
Red-green colorblindness is a inherited disorder in which individuals have trouble distinguishes
between red and green (or brown and orange) and often confuse blue and purple hues. This
condition is usually found in males, as it is located on the X chromosome.
A man with red-green colorblindness has one brother who has normal version. From which parent did the man inherit colorblindness? Explain how you know using a Punnett square to © 2014 Vanessa Jason (“Biology Roots”
back up your answer.
Since the colorblindness is located on the X chromosome, the man must have inherited his colorblindness from his mother.
X-linked traitsWomen are XX while men are XY.
Also, the X chromosome in XY always comes from the mother.
Since the man is affected for colorblindness but his brother is not, it means that only one X chromosome of the mother is affected while the father can be affected or otherwise.
Assuming the father is free from colorblindness and the allele is represented by c:
[tex]X^cX[/tex] x [tex]XY[/tex]
[tex]X^cX[/tex] [tex]X^cY[/tex] [tex]XX[/tex] [tex]XY[/tex]
Thus, the man's genotype is [tex]X^cY[/tex] and it comes from the mother.
More on X-linked traits can be found here: https://brainly.com/question/9830755
what is one benefit to giant octopuses laying many eggs?
Answer:
The majority of baby octopuses born don't reach adult hood, laying more eggs increases the number of babies that have a chance to make it to adulthood.
Answer:
During courtship, both octopuses use their sense of sight to determine attraction. Males are looking for a large female. Larger diploid females produce more haploid eggs, by meiosis If more eggs are fertilized, it gives the male a greater probability to pass on his genes.
Explanation:
just allows males to pass on more of their traits
Shannon is making a Venn diagram to organize the characteristics of cell walls and cell membranes. Which pair of characteristics both belong in the two areas of the Venn diagram that do not intersect?
helps with communication; contains mostly cellulose
contains mostly cellulose; forms the outer layer of animal cells
is found in plant cells; is found in animal cells
is semipermeable; found in animal cells
Answer:
uyy
Explanation:
nb gh
Answer:
contains mostly cellulose; forms the outer layer of animal cells
Explanation:
The set of alleles an organism has for a particular trait is what ____
Answer:
i would help you with your work but i dont know how ro do it myself
Explanation:
im so sorry
resume with deforestation urbanization desertification invasive species global warming climate change
Answer:
Global, and economic catastrophy.
Explanation:
Read the scenario.
A biologist is studying golden frogs that live in cool streams running through the rain forests of Central America. The biologist conducts a survey of the population and counts over 100 frogs in one mile of stream. The biologist returns to the same location one year later and counts only 20 frogs in that same stretch of stream. The biologist wonders why there are suddenly so few golden frogs.
The biologist also observes that a mining company has set up a copper mine only a few miles from the stream. By reading studies on copper mining operations in other parts of the world, the biologist learns that the wastewater runoff from the mines is highly acidic and contains potentially toxic compounds.
Which question most closely relates to the biologist's observations and collected data?
Are the golden frogs succumbing to a fungal infection?
Did the golden frogs migrate to a new habitat?
Why was a copper mine built so close to the stream?
Is the runoff from the copper mine contaminating the golden frogs' stream and killing the frogs?
Answer:
The most likely answer would be D, Is the runoff from the copper mine contaminating the golden frogs' stream and killing the frogs?
Explanation:
The golden frogs live either close to the stream or in it, which means the acidity and toxicity could kill them.
Hope this helps, my apologies if I am uncorrect.
What is the difference between a bacterial chromosome and a plasmid?.
rue or false: Cells start dividing when they snugly contact neighboring cells or when growth factors are withdrawn
The ____________ and brain make up the central nervous system. The spinal cord extends through the vertebral canal and is composed of an inner ____________ region and an outer ____________ . The spinal cord contains ____________ in the cervical and lumbar regions, which give rise to nerves that serve the upper and lower limbs.
The spinal cord and brain make up the central nervous system. The spinal cord extends through the vertebral canal and is composed of an inner gray matter region and an outer white matter . The spinal cord contains enlargements in the cervical and lumbar regions, which give rise to nerves that serve the upper and lower limbs.
Hope this helps :))
When the body reacts to stop, or work in the opposite direction of, a stimulus, it is known as _____.
positive feedback
negative feedback
Who was the famous political cartoonist who made Uncle Sam popular?
Answer:
Thomas Nast
Explanation: American cartoonist Thomas Nast cemented the image of Uncle Sam in his own drawings during the 1870s. By the early 1900s
Help I need help on this
Answer:
Switch G and C with one another and switch A and T with one another for complementary strand
Explanation:
Complementary strand: GGC CTA AAA TTA TAC GAT GAT AGC ATG ATG GAA CCA CGA
The identical strand is just the original strand repeated
This is a simplified coastal Maine food web. Analyze the model. Select the phrases that accurately describe the flow of energy in this marine ecosystem. Select ALL that apply. A) Harbor seals receive 10% of the energy of the zooplankton. B) Herbivores have more energy available to them than carnivores. C) Primary consumers have the greatest amount of energy available. D) There should be fewer tertiary consumers than secondary consumers. E) Of the energy that is available to the producer level, only ten percent is available to the secondary consumers.
The statements 'harbor seals receive 10% of the energy of the zooplankton', 'primary consumers have more energy ' and 'fewer tertiary consumers than secondary' are TRUE.
What is a food web?A food web is a diagram representing the connections between organisms in a particular ecosystem.
A food web is based on producer organisms that generate the biomass that sustains all life in the web.
Consumes such as herbivores and carnivores are placed at higher trophic levels in the food web.
Learn more about food webs here:
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During mitosis, centromeres separate and chromatids become individual chromosomes during which phase?.
Answer:
Anaphase
Explanation:
During anaphase, the centromere splits, allowing the sister chromatids to separate.
hope this helps
pls mark brainliest
1/10
SKILL LEVE
Beginn
A
is the general term for any remains or traces of an
ancient organism.
Enter the answer
Check it
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~Improve this question
Answer:
yes its yes cool man cool fine
Explanation:
Explain ing this is the yes to the yess
A portion of dna that encodes a specific protein is a.
Answer:
an RNA strand
Explanation:
The reason for this is that the question is asking for a portion of DNA that codes for proteins. RNA strands code for proteins, therefore the answer is an RNA strand.
Thanks and Regards,
Reverent
List the types of enzymes made in the salivary glands, the stomach, the pancreas and the small intestine. In each case say which food substance the enzymes break down.
salivary glands-
amylase
starch
stomach-
gastric enzymes
protein
pancreas-
pancreatic enzymes
fats, carbohydrates, proteins
small intestine-
amylase, protease, lipase
fats, carbohydrates, proteins
Types of digestive enzymes made in different organs of digestive enzyme are:
Salivary glands: AmylaseStomach: PepsinPancreas: Proteases, Lipases and AmylaseSmall Intestine: Peptidases, Sucrases, Lactase and MaltaseWhat are digestive enzymes?Digestive enzymes are the enzymes that help in the breakdown of ingested food so as to facilitate the absorption of energy.
The digestive enzymes and the type of food substances they break down are below:
Amylase: starchPepsin: proteinProtease: peptidesLipase: lipids, fatsPeptidase: peptidesSucrase: sucroseLactase: lactaseMaltase: maltoseTo know more about digestive enzymes here
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The rate at which an object weathers is determined by many different variables. For example, compare the two ancient Egyptian structures below.
Compare the obelisk from the temple of Luxor in Egypt (left) and the Egyptian obelisk called Cleopatra's Needle in New York (right).
Both structures were carved in Egypt from the same type of rock more 1,000 years ago. However, the obelisk in New York, which was transported there from Egypt in 1881, has since experienced a much higher rate of weathering. What factors likely sped up the weathering process for the structure that was moved to New York?
Answer:
I just answered this question in your other submission of the question. You can look at it if you want!
The obelisk from the temple of Luxor in Egypt (left) and the Egyptian obelisk called Cleopatra's Needle in New York (right).In New York temperature is low,considerable cloudiness with occasional rain showers.
What are factors that can speed up the process of weathering?The amount of rainfall and the temperature can influence how quickly rocks weather. The pace of chemical weathering is accelerated by high temperatures and heavier rainfall. 2. Compared to comparable rocks living in cold, dry climates, rocks in tropical regions exposed to heavy rainfall and high temperatures weather far more quickly.
Chemical weathering is accelerated by moisture. Hot, humid regions are the ones that weather the fastest. In hot, dry areas, it happens extremely gradually. Ice wedging is not possible without temperature variations.
Significant influences in weathering include physical forces like temperature and humidity, chemical forces like oxidation and carbonation, and biological forces like animal and human activity-related burrowing.
Thus,In New York temperature is low,considerable cloudiness with occasional rain showers.
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Why would algal boom, an overgrowth of algae, harm marine life.
Please help I’ll give Brainliest ;))
Answer: Stage 1 because, at stage 1 all embryos look similar but as they grow older they start look different depending on their genes
Question 2: Similarities in structure among distantly related species are analogous if they evolved independently in similar environments. They provide good evidence for natural selection. Examples of evidence from embryology which supports common ancestry include the tail and gill slits present in all early vertebrate embryos.
QUestion 3: Similar body parts may be homologous structures or analogous structures. Both provide evidence for evolution. Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants.
Select the correct answer from each drop-down menu. the sun is the primary source of energy for ecosystems. the sun emits . when an organism obtains nutrients by feeding on other organisms in the ecosystem, energy is used and released. energy changes form, but it isn’t destroyed as it transforms. this scientific law is called the law of .
The scientific law of one organism feeding off other where energy is transferred from one form to another is known as the law of conservation of energy.
How the sun is the primary source of energy for ecosystems?Energy from the highest energy source that is sun is absorbed by plants to convert it into food (i.e a form of energy). plants are the only ones that can convert sunlight into another form of energy directly.
The animals and organisms that feed off of the plants take some part of this energy for their life cycles and then the animals that feed off of these animals again take some part of this energy and carry on with their life cycle, this is how energy from sun (highest source) is transferred to different organisms by Just changing form.
Thus, The scientific law of one organism feeding off other where energy is transferred.
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Answer:
1. radiant energy 2. Conservation of energy
Explanation:
One naturalist thought he saw a "black lava flow" on Fernandina. What did he actually see?
Answer:
orange lava
Explanation:
Plants release scents that attract pollinating insects to them. These adaptations primarily help the plant to _____.
A
find food
B
find water
C
protect themselves
D
reproduce
Answer:
I believe D, because pollen is used for reproduction.
evidence or data that will prove it will help with deforestation
Answer:First of all, we should afforestation which is growing of trees in the forest
Explanation: