Answers
Answer:
- OH group is the most powerful activator
Explanation:
The most powerful activator for Vanillin is the - OH group and this is due to the effect of the +R on the - OH group and also there is more overlapping experienced in -OH groups compared to - OCH3 group
attached below is the reaction scheme
Related Questions
how do you find per capita growth rate over a month?
Answers
All you have to do is take the CGR (capita growth rate) percentage you just found and divide it by the number of years, months, etc. The complete formula for annual per capita growth rate is: ((G / N) * 100) / t, where t is the number of years.
50 points: write 3 paragraphs on the difference of asexual and sexual reproduction and why is asexual better
Answers
Answer:
When an organism makes more of itself without the exchang of genetic information with another organism through sex, the reproduction is asexual.while
In sexual reproduction, the exchange of dna and other genetic material is required as it involves two separate organisms.Finally
Asexual is better in terms of time, less energy and only one organism (the parent cell) is needed for the process.As. Why do biennial plants need two years to complete
their live Span ?
Answers
Which statement BEST explains why the Moon is visible from the Earth?
1) The Moon reflects light from the Sun.
2) The Moon is always lit up by the Sun for us to see.
3) The Moon reflects light from the Earth.
4) The Moon produces its own light through radiation.
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The Moon is always lit up by the Sun for us to see.
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Answers
Answer:
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Explanation:
tgffgb t cook ha ha ha oh g civic guy the h
Which statement best describes the movement of sodium ions across the cell membrane?
They are hydrophilic, so their movement needs to be facilitated by transport proteins.
They are hydrophobic, so their movement needs to be facilitated by transport proteins.
They are hydrophilic, so they easily pass across the cell membrane on their own.
They are hydrophobic, so they easily pass across the cell membrane on their own.
Answers
Answer: A. They are hydrophilic, so their movement needs to be facilitated by transported proteins.
Explanation:
How quickly must non-frozen ready to eat foods be consumed
Answers
In which layer of the atmosphere does the aurora borealis form? O A. The troposphere OB. The mesosphere O C. The thermosphere O D. The stratosphere SUBM
Answers
Answer:
The Thermosphere
Explanation:
Just took the test on A P E X, it's right. Hope this helps :)
Aurora Borealis forms in the thermosphere layer of the atmosphere. Therefore, option "C" is correct.
What are the different layers of the atmosphere?The atmosphere is made up of different layers which protect the life on Earth and make it habitable. There are four layers of the atmosphere troposphere, stratosphere, mesosphere, and thermosphere.
In the troposphere, the temperature rises from bottom to top. The ozone layer is present in the stratosphere. This is also known as the flying zone as no clouds are present in this layer. In the mesosphere, the air is much colder as there are gas molecules present that absorb solar radiation whereas the density of molecules in the thermosphere is very low.
The atmospheric layers protect the life on Earth.
Learn more about Earth's atmosphere, here:
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All of the following events occur during prophase in mitosis except
WILL MARK BRAINLIEST
A. Condensation of DNA
B. Crossing over
C. Pairing of chromosomes
D. Spindle formation
Answers
All of the following events occur during prophase in mitosis except crossing over (Option B)
Mitosis can be divided into four phases: prophase, metaphase, anaphase, and telophase.During prophase, the chromatids condense into chromosomes, thereby making them visible. The mitotic spindle is a structure composed of microtubule proteins that segregate the chromosomes in mitosis. This structure is formed in prophase.In Prophase homologous pairs of chromosomes are paired together. In metaphase, these chromosomes are lined up at the equator of the cell and sister chromatids are attached to the spindle fiber.Crossing over (or recombination) is the exchange of genetic material between non-sister chromatids that occurs during prophase I of meiosis.In conclusion, condensation of DNA, the pairing of chromosomes and, spindle formation occur during prophase, whereas crossing over occurs in prophase I of meiotic cell division (Option B).
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Which of the following is not one of the three steps (processes) involved in urine formation?
Answers
The following is not one of the three steps (processes) involved in urine formation - Erythropoietin production.
ErythropoietinIt is a hormone that has no role in urine production. The steps of urine production are:
glomerular filtration - the filtration of blood, which is carried out by the glomerulus tubular reabsorption - The tubular epithelial cells in different segments of the nephron perform absorption (reabsorption) either by active or passive mechanismstubular secretion - helps in the maintenance of an ionic and acid-base balance of body fluids.Learn more about urine production:
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What is a fourth order consumer
Answers
Halfway through exponential phase, the temperature is lowered slightly below the
optimum. How will the growth curve change?
A. The cells will immediately enter death phase
B. The cells will enter lag phase
C.The slope of the exponential phase will become shallower
D. The slope of the exponential phase will become more steep
Which one is the best answer ? Choose only one answer
Answers
Answer:
B. The cells will enter lag phase
Explanation:
There are four identifiable phases of bacterial growth in a culture. These are: the lag phase, the exponential or log phase, the stationary phase, and the death or decline phase.
The lag phase occurs when there is need for the growing bacterial cells to adapt to new conditions. The adaptation period, i a time when the cells adjust themselves to the new conditions. The length of the lag phase varies considerably, depending on the initial and final conditions of the bacteria cells.
Hence, when the temperature is slightly lowered below the optimum halfway into the exponential phase, the cells will enter into lag phase
Which is an abiotic factor that most limits the number of frogs living in a pond?
Answers
Answer:the temperature of the water
Explanation:
Sodium (Na) and chlorine (CI) combine to form sodium chloride (NaCl), which is commonly
known as
Answers
describe three anatomica features of humans that adapt them for endurance running?
Answers
Radish flowers may be red, purple, or white. A cross between a red-flowered plant and a white-flowered plant yields all-purple offspring. The part of the radish we eat may be oval or long, with long being dominant. If true breeding red, long radishes are crossed with true breeding white, oval radishes, what will the offspring look like?
Answers
Answer:
The offspring will be purple and long
Explanation:
Radish flowers = Red, purple, or yellow
For a cross between a red-flowered plant and a white-flowered plant to yield all-purple offspring, that means either the red or white is dominant and the other recessive.
When cross it will result in 16 progenies.
There is an attachment to this answer to further clarify the answer.
CAN SOMEONE HELP ME WITH THE PICTURE ABOVE
thank you
Answers
Answer:
B.
Explanation:
2% better off
6.
What is the meaning of the word regulate in paragraph six?
Answers
How does the movement of water, carbon, and nitrogen in ecosystems differ from the movement of energy?
Please help me this is due today, thank you if you do^^
Answers
Answer:
While water, carbon, and nitrogen cycle through the ecosystem, energy flows through an ecosystem.
Explanation:
There is a limited amount of water, carbon, and nitrogen in an ecosystem, and therefore, it cycles and passes through an ecosystem multiple times. In the case of energy, however, it is different. Energy goes into a system, flows from organism to organism, and then leaves the system. For example, with water, that water will rain, gather in a river or body of water, and evaporate, doing the cycle over and over again. Energy from the sun however, gets collected by producers, then flows to the organism that eats the plant, then flows to the organism that eats that organism, and so on. The energy does not return to the sun, it just leaves the system (like for example when an organism dies).
I need help with this this i don’t get this
Answers
Answer:
D because the others have nothing else deals with an empty garden that has an effect on things
Explanation:
During my ptosis a single cell divides to produce two daughter cells what must happen in the original cell so that each daughter cells can I have a complete set of chromosomes
Answers
Answer: 3d illustration depicting cell division, a process whereby a cell divides into two new daughter cells with the same genetic material.
Explanation:
Help! I’ll mark you brainly!
Answers
Answer:
its a powerhouse i just got out of my mouth XD
Phosphatidate (phosphatidic acid) is a precursor in the synthesis of some lipids. Phosphatidate (phosphatidic acid) is a branched molecule. The core of the molecule is a three carbon chain. Carbon one is single bonded to two hydrogens, and a side chain. The side chain is oxygen single bonded to carbon. The carbon is double bonded to oxygen and an R 1 side chain. Carbon two of the core chain is single bonded 1 hydrogen and to oxygen which is single bonded to carbon. The carbon is double bonded to oxygen and single bonded to an R 2 side chain. Carbon three is single bonded to two hydrogens and a phosphate group. P O 4 2 minus. Phosphatidate (phosphatidic acid) Identify the lipids that have phosphatidate as a precursor.
Answers
Answer:
glycerolphospholipids, triacylglycerol, and cardoilpin.
Explanation:
PS: Kindly check the attached picture for the structure of Phosphatidate (phosphatidic acid).
The chemical compound known as Phosphatidate or the phosphatidic acid belongs to a group known as phospholipids. Phosphatidate or the phosphatidic acid can be prepared by using the chemical compound known as diacylglycerol kinase to phosphorylate diacylglycerol. Also, Phosphatidate (phosphatidic acid) can be prepared by making use of lysoPA-acyltransferase to acrylate lysophosphatidic acid[a phoshopipid derivative].
The lipids that have Phosphatidate (phosphatidic acid) as precursor are glycerolphospholipids, triacylglycerol, cardoilpin, phosphatidylinositol
basic science hatching of egg into chick
Answers
Answer:
Basic science of hatching of egg into chick is incubation.
Explanation:
Incubation is the process of keeping eggs at suitable temperature and under suitable conditions, so that it can develop.
DNA undergoes the process of replication to produce new strands of identical DNA before cell divisions. Describe the basic dna replication. I will give you brainliest
Answers
Answer:
Please mark as Brainliest
Explanation:
Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. DNA replication is one of the most basic processes that occurs within a cell. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell. To accomplish this, each strand of existing DNA acts as a template for replication
Step 1 Replication Fork Formation. Before DNA can be replicated, the double stranded molecule must be unzipped into two single strands
Step 2 Primer Binding. The leading strand is the simplest to replicate
Step 3 Elongation
Step 4 Termination
compounds formed from the attraction of oppisitely charged ions are called ________.
A. covalent compounds
B. ionic compounds
C. mineral compounds
D. molecular compounds
Answers
Answer:
B. ionic compounds
Explanation:
If you move farther away from Earth, does it have the same amount of
gravitational force acting on you or does it change?
Answers
Answer:
The strength of the force is inversely proportional to the distance squared. The farther away an object is, the weaker the force; the closer, the stronger.
The height of a painting is ft. Between which two consecutive whole numbers is ?
Choose the correct answer below.
A.
and
B.
and
C.
and
Answers
Answer:
a
Explanation:
I don't understand what you want it's all the same they all say and
In the correct order, list each structure of the pig an egg/fetus will pass through from its site of production through fertilization, fetal development, and birth.
not in order options:
urogenital opening
ovary
oviduct
vagina
uterus
Answers
How does the water on earth regulate the earth temperature
Answers
Answer:
It absorbs a lot of the sun’s energy.
Explanation:
A large portion of the sun’s energy and heat is absorbed by the oceans, which causes water to evaporate. Water has a high heat capacity, and therefore absorbs a large portion of the sun’s heat, regulating the earth’s temperature.