Which of the following is surrounded by two phospholipid bilayers?
a) Ribosomes b) the vesicles
C. CYTOPLASM
D) THE NUCLEOPL
Answer:
D. THE NUCLEOPLASM.
Explanation:
I think there is a typo in your option but that's fine! I understand.
Which of the following is an example of a positive feedback?
a. when your body is cold and triggers shivering to warm your body up
b. insulin's reducing blood sugar
c. withdrawing your hand from a painful stimulus, like a broken glass
d. the formation of a platelet plug during blood clotting
Answer:
C
Explanation:
that's the only one that seems reasonable. and (positive)
explain how the information in this diagram indicates that an oxygen atom could bond covalently to two hydrogen atoms to form water
Answer:
because when oxygen atom bonds with two hydrogen atoms they form water
Explanation:
A water molecule is formed by covalent bonds between an oxygen atom and two hydrogen atoms. The bond between hydrogen and oxygen involves unequal sharing of electron – it is a polar covalent bond. This is because the nucleus of the oxygen atom is more attractive to electrons than the nuclei of the hydrogen atom.
Do you think there should be regulations on industries that make fertilizers and farmers who use fertilizers to ensure that excess nitrogen does not reach water ecosystems? Why or Why not? Write at least five sentences defending your answer.
Given what we know, we can confirm that there should in fact be regulations on fertilizer manufacturers and farmers who use fertilizers to ensure that excess nitrogen does not reach water ecosystems due to its negative effects on the ecosystems.
What is Nitrogen?Nitrogen is an element that is most often found in a gaseous state.It is color and odorless.It is found in the air, water, and almost everywhere else around us, but in low quantities. It can form toxic gases such as ammonia when in high concentrations in the air. Why can it be harmful in excess?Excess nitrogen in water is very bad due to the effect on algae. Contrary to what we may initially believe, excess nitrogen can help algae to grow at very high rates.However, these algae blooms sap the oxygen from the water at increased rates and damage if not kill all other marine life in the area as a consequence.Therefore, regulations should be in place for fertilizer manufacturers and farmers who use fertilizers to ensure that excess nitrogen does not reach water ecosystems due to its negative effects on the ecosystems.
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Although cellular respiration involves many steps, the whole process can be represented by a single equation.
A + B → C + D + E
Which substances would complete the equation that models the overall process of cellular respiration?
A:
ATP
B:
C:
D:
E:
Answer:
Glucose,energy , water , hydrogen
The limb of an alligator, when compared to that of a dog supports which type
of evidence of evolution?
A.embryology
B.fossil record
C.homologous stucture,
D.geographic distribution.
No links or bots please and thank you
what is the process that breaks down nucleic acids into nucleotides
a. dehydration synthesis
b. synthesis
c. polymerization
d. hydrolysis
please help ty
Answer:
D. Hydrolysis
Explanation:
Dehydration synthesis reactions build molecules up and generally require energy, while hydrolysis reactions break molecules down and generally release energy. Carbohydrates, proteins, and nucleic acids are built up and broken down via these types of reactions, although the monomers involved are different in each case.
I hope this helps have a great day :)
The process that breaks down nucleic acids into nucleotides is hydrolysis. The correct option is d.
What is hydrolysis?Any chemical reaction in which a water molecule breaks one or more chemical bonds is known as hydrolysis.
When water is the nucleophile, the phrase is used generically to refer to substitution, elimination, and solvation processes.
Nucleo depolymerase is another name for nuclease. By cleaving the phosphodiester bond that connects the nucleotides in the nucleic acids, the nucleic acid is broken down into nucleotides.
Either an enzyme or a non-enzyme can cleave the nucleic acid chain. Since the initial step in the alkaline hydrolysis of a polynucleotide is the transfer of the bond from C5' of the subsequent nucleotide to C2' of the same nucleotide, a 2'-OH group is necessary.
Thus, the correct option is d.
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help me pls ASAP it's need
Answer:
slash and burn methods results in soil erosion due to the fact that it causes landslides, dust clouds and contaminated water. Soil washes away during rain and trees are no longer supported by the soil holding their roots in place
What is the function of tRNA?
A.catalyze the assembly of amino acids into a protein
B.carry genetic instructions for building a protein
C.bring an amino acid to the ribosome
Answer:
decode a messenger RNA (mRNA) sequence into a protein
Explanation:
tRNAs function at specific sites in the ribosome during translation, which is a process that synthesizes a protein from an mRNA molecule.
Sally sustained damage to some autonomic ganglia. What part of the visceral reflex arc is interrupted
The part of the visceral reflex arc that is interrupted is the motor response in a target cell. The visceral reflex is part of the autonomic nervous system (ANS).
The visceral reflex arc refers to the reflex arc present in the autonomic nervous system (ANS).
This reflex arc (visceral reflex) generates glandular muscular (motor) responses within internal organs.
The visceral nervous system controls different body functions including, among others, digestion, respiratory rate, heart, pupillary dilation, etc.
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why are peas carbohydrates
Explanation:
Hope this helps you !!Please help
4.___are essentially molecules of DNA.
The ____theory accounts for the method by which a molecule of DNA makes a
copy of itself.
Answer:
Nucleotide
DNA replication
Explanation:
Can someone please help me with the next 15-20 questions that I'm about to upload today? they're all due today and it's for physical science 11th grade
Answer:
yes
Explanation:
I can help. As long as it's before 9
Cell membranes are made up of a bilayer of phospholipids that are very selective about what substances can pass through.The table below shows the different types of molecules that can enter a cell. It compares the concentration on the outside to the inside of the cell, its relative size, and whether it is polar, nonpolar, or an ion. Determine how each molecule can pass into the cell. Is it by passive transport, active transport, or endocytosis? (3 points)
Answer:
Answer: Oxygen = passive Carbon Dioxide = passive Fructose = Endosytosis glutamine = Active Sodium ion = Active Potassium ion = Active Protein molecule = Passive or Endocytosis
Explanation:
js trynna get points lol
The molecules can pass into the cell by passive transport, active transport, or endocytosis.
Molecule | Concentration Outside | Concentration Inside | Size | Polarity | Transport | Mechanism
Glucose High Low Small Polar Diffusion
Oxygen High Low Small Nonpolar Diffusion
Sodium High Low Small Ion Active transport
Chloride Low High Small Ion Active transport
Amino acids Low High Medium Polar Carrier-mediated transport
Large protein Low High Large Polar Endocytosis
Glucose and oxygen can pass into the cell by diffusion. Diffusion is the movement of molecules from an area of high concentration to an area of low concentration. Glucose and oxygen are both small molecules, and they are both polar. This means that they can dissolve in the phospholipid bilayer of the cell membrane.
Sodium and chloride can pass into the cell by active transport. Active transport is the movement of molecules from an area of low concentration to an area of high concentration. Sodium and chloride are both ions, which means that they are charged particles. This means that they cannot dissolve in the phospholipid bilayer of the cell membrane. Instead, they need to be transported across the membrane by special proteins called ion pumps.
Amino acids can pass into the cell by carrier-mediated transport. Carrier-mediated transport is a type of passive transport that uses carrier proteins to transport molecules across the cell membrane. Amino acids are polar molecules, but they are larger than glucose and oxygen. This means that they cannot simply diffuse across the cell membrane. Instead, they need to be transported across the membrane by carrier proteins.
Large protein can pass into the cell by endocytosis. Endocytosis is a process by which the cell engulfs large molecules or particles. The cell membrane forms a pocket around the molecule or particle, and then the pocket pinches off to form an endocytic vesicle. The endocytic vesicle then fuses with a lysosome, where the molecule or particle is broken down.
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Which of the following statements is true about the role of water in cellular respiration?
Answer:
The correct answer is " It is one of the ending compounds."
Have a good day!
Explanation:
Is a mountain building explained by plate tectonics
Answer:
Yes. So are earthquakes and volcanoes.
Explanation:
Answer: No, I don't think so.
Explanation:
How did the bombardment of Earth by solid particles affect its temperature
Answer:it affected it by being hot
Explanation:
snglekns
The bombardment of the earth by solid particles affects its temperature because the bombardments release heat and make the earth warmer, and due to this, the early earth was hotter.
What is the earth?The Earth is the planet in the solar system that moves around the sun, and it has living plants and animals along with non-living substances such as soil, air, water, etc. Most of the earth is covered with water and the earth has various populations, biomes, and biodiversities, and all of this biodiversity is due to changes in climate and geography, which result in the presence of various animals.
Hence, the bombardment of the earth by solid particles affects its temperature because the bombardments release heat and make the earth warmer, and due to this, the early earth was hotter.
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Bob has brown hair and Sally has blonde hair. If brown hair is dominant and blonde hair is recessive, is it possible for Bob and Sally to have a blonde-haired child? Use the GENOTYPE of each parent to EXPLAIN your answer.
Answer:
no it is not possible
Explanation:
bc when you do a punnett square brown hair is dominant so there is not a possible way for their child to have blonde.
Why do beavers destroy the forests around us? We know they build dams, but why don't they ever use what they cut down?
Answer:
Well im sure they do... maybe they dont use allot it though, like if they forget about some of the wood or they are done making a dam
Explanation:
The beaver becomes a nuisance when they interfere with man's use of the land. Dams can flood large areas of agricultural land or forest, roads can be washed out and cultivated trees and shrubs may be damaged or destroyed.
What is the species name for humans?
A. Homo
B. Erectus
C. Carolus
D. Sapiens
Answer:
D. Sapiens
Explanation:
The scientific name is h.o.mo sapiens
h.o.mo is the genus
sapiens is the species
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I am just a teen who needs some help with homework. :)
This is my question:
What is the rarest eye colour in the world? Please help, it's due today.
Answer:
Green eyes
Explanation:
The production of melanin in the iris is what influences eye color. More melanin produces a darker coloring, while less makes for lighter eyes. Green eyes are the rarest, but there exist anecdotal reports that gray eyes are even rarer.
The rarest eye color in the world is green, only 2% of the population in the world have green eyes. To find out more about the list.....
1. Green eyesOnly 2% of people in the world are believed to have this eye color. It is most easily found in northern and Southern Europe and Western Asia.
2. Amber eyesThey are reddish-brown, with a golden and coppery undertone. Among the clear and beautiful eyes in the world, and according to the survey, the most iris, all eyes and beautiful in the world are according to the study, all eyes are rare and specific.
3. Red or violet eyeIt is generated by the body thanks to some genetic changes. The most common is albinism, a disease that lowers melanin levels. Because of this, the hair and eyes can be distinguished.
With this information, we can conclude that there are several eye colors, but the most rare is the color green.
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A student is conducting a breeding experiment. She knows the genotype of one parent plant and concludes that she can use a Punnett square to predict the outcome of crossing the plant with another plant. Which statement best explains why this conclusion is incorrect?
a. She needs to know the phenotypes of the previous plant generation.
b. She needs to know the phenotype of the first plant.
c. She needs to know the genotypes of the previous plant generation.
d. She needs to know the genotype of the second plant.
D. She needs to know the genotype of the second plant.
What is a punnett square?A Punnett square is a tool used to predict the outcome of a genetic cross between two individuals. To use a Punnett square, you need to know the genotypes of both of the individuals involved in the cross. In this case, the student knows the genotype of one parent plant, but does not know the genotype of the second plant.
Therefore, she cannot use a Punnett square to predict the outcome of the breeding experiment. In order to do so, she would need to know the genotype of the second plant.
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Pharmacodynamic tolerance involves changes in _____________ while metabolic tolerance involves changes in _____________. Group of answer choices A. enzymes / neurons B. neurons / enzymes C. brain / neuron D. neuron / brain
Answer:
B
Explanation:
Pharmacodynamic tolerance involves changes in neurons, while metabolic tolerance involves changes in enzymes.
What is pharmacodynamics?
"Pharmacodynamic interactions" are interactions in which substances directly affect one another's effects. Sedatives, for instance, typically potentiate one another.
Neurons are the cells of the nervous system the cell plants are branch-like structures like the roots of a plant, they contain absorb information using electrical impulses and transport it into different areas of the brain.
The central nervous system contains the brain and the hypothalamus, and the peripheral nervous system contains all the neuron cells.
Therefore, while metabolic tolerance affects changes in enzymes, pharmacodynamic tolerance involves changes in neurons.
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what type of endangered dolphins are being tracked by artificial intelligence technology in new zealand, where only 63 adults in this subspecies live?
Answer:
Māui dolphins
Explanation:
Ye
how long does it take for a photon to travel through the convection zone
Answer:
50 million years
Explanation:
It can take a photon as long as 50 million years to travel all the way through the radiative zone. The convection zone surrounds the radiative zone. In the convection zone, hot material from near the Sun's center rises, cools at the surface, and then plunges back downward to receive more heat from the radiative zone.
explain the bowman's capsule
Answer:
Bowman's capsule is a part of the nephron that forms a cup-like sack surrounding the glomerulus. Bowman's capsule encloses a space called “Bowman's space,” which represents the beginning of the urinary space and is contiguous with the proximal convoluted tubule of the nephron.Explanation:
BRAINLIEST PLEASEWhich is an example of how traits can be influenced by the environment?
A. coat color in Labrador retrievers B. reading ability of identical twins
C. flower color in pea plants D. blood type in humans
Answer:
C.
Explanation:
Environmental factors influence traits in plants and animals. These traits include things like weight, height, size, and color. If a dog does not get proper nutrition and exercise, their weight will be negatively impacted. The dog is likely to be overweight if the environmental factors are not changed.
Which of the statements agrees with the base pairing rules in a DNA strands
Answer:
the offspring of two parents will have 50 percent of his or her gene's from their mother and the other 50 from their father and the gene's will determine what the child will have like the eye color and hair color shape of their nose and other things that are inherited
Explanation:
Why do you have to determine the total magnification when observing a specimen under the compound microscope?
Answer:
To clearly see specimens under the microscope, and to be able to see two separate objects that are close together.
Explanation:
A microscope is a tool that makes an object look bigger so that the person who is looking at it can see it. It's important to use a microscope because cells are usually too small to see with the naked eye. In addition to magnification, microscopes also have resolution, which is the ability to see two objects that are close together as separate. A microscope needs both magnification and resolution to be able to clearly see specimens under the microscope. When the light microscope bends light at the specimen, it gives the viewer a clear picture of the specimen. A series of lenses do this.
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Answer:
lol XD
Explanation: