Answer:
B) A polysaccharide consisting of 2 types of monosaccharide units and cross-linking oligopeptides.
Explanation:
A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.
Also, a unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
A bacterial cell is made up of peptidoglycan and its main function is to maintain the shape of a cell while preventing it from bursting due to osmotic pressure. Also, the bacterial cell inhibits the passage of larger molecules but allows the free movement (passage) of smaller molecules in the body of a living organism.
Basically, bacterial cell wall comprises a polysaccharide that's typically made up of two (2) types of monosaccharide units and cross-linking oligopeptides.
Which of the following shows the correct order in which sound information travels through the ear?
O Ossicles, eardrum, cochlea, cochlear nerve
Eardrum, ossicles, cochlear nerve, cochlea
O Eardrum, ossicles, cochlea, cochlear nerve
O Ossicles, eardrum, cochlear nerve, cochlea
The following shows the correct order in which sound information travels through the ear is Eardrum, ossicles, cochlear nerve, cochlea.
What is the cochlear nerve?The cochlear nerve, additionally called the acoustic nerve, is the sensory nerve that transfers auditory records from the cochlea (auditory vicinity of the internal ear) to the brain. It is one of the many portions that make up the auditory system, which permits powerful listening to.
We pay attention while sound waves journey thru the air to our eardrum, throughout our center ear, into our internal ear, and sooner or later to the auditory facilities of our brain. Our ears are constantly on and are constantly sporting sounds alongside this listening-to pathway.
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Answer:
Eardrum, ossicles, cochlea, cochlear nerve
Explanation:
what is a gene ?
A. a series of amino acids
B. a segment of a dna molecule
C. a series of dna molecule
D. a segment of a protien
What is the definition of gene flow?
Answer:
the transfer of genetic material from one population to another
Explanation:
ASAP
This organelle has a green pigment that absorbs sunlight.
A. Mitochondrion
B. Chloroplast
C. Vacuole
D. Ribosome
The organelle the question is referring to is called the chloroplast. I hope this helps; have a good evening!
Both anaerobic and aerobic respiration use what to produce ATP and NADH?
Answer
glucozo
Explanation:
What are some reasons why the control of insect pests is difficult?
Explanation:
some pesticides make them reproduce faster
three types of transpiration
Answer:
1) Stomatal Transpiration
2) Lenticular Transpiration
3) Cuticular Transpiration
OAmalOHopeO
Plasmodial slime molds are characterized by:
Select one:
a. The ability to go from a single cell to multicellular organism
b. Their color and shape
c. The existence of multiple nuclei in a supercell
d. The presence of chloroplasts
Answer:
a,the ability to go from a single cell to multicellular organism
The existence of multiple nuclei in a supercell is the characteristic feature of the Plasmodial slime molds, hence option C is correct.
What are Plasmodial slime molds?It is one large cell called a supercell surrounded by a single membrane without cell walls having multiple nuclei, commonly founds on decomposing forest litter and rotting wood.
This organism is found by the fusion of multiple flagellated cells and which makes the structure of supercells, its formation depends on the availability of food.
It glides along the way where the presence of food particles is observed generally bacteria, lifting and engulfing this food. It has a diameter of 3 to 4 centimeters.
Therefore, Plasmodial slime molds are characterized by the existence of multiple nuclei in a supercell.
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There is a U-tube in which solutions in two arms A and B are separated by a membrane. Arm A contains glucose with concentration of 0.4 mol per liter and sodium chloride with concentration of 0.5 mol per liter. Arm B contains glucose with concentration of 0.8 mol per liter and sodium chloride with concentration of 0.4 mol per liter.
The solutions in the arms of a U-tube (the figure) are separated at the bottom of the tube by a selectively permeable membrane. The membrane is permeable to sodium chloride but not to glucose. Side A is filled with a solution of 0.4 M glucose and 0.5 M sodium chloride (NaCl), and side B is filled with a solution containing 0.8 M glucose and 0.4 M sodium chloride. Initially, the volume in both arms is the same.
If you examine side A in the figure after three days, the concentrations of glucose and NaCl should be _____________.
Answer:
0.4 M glucose, 0.45 M NaCl
Explanation:
I hope this helped!
una persona camina durante una hora y media y corre 4 km con velocidad constante ¿cuál era su velocidad en km/h y en m/s?
La respuesta es: su velocidad es 2.66 km/h, equivalente a 0.738 m/s.
Explanation
Para conocer la velocidad de una persona que recorrió 4 km luego de caminar durante una hora y media es necesario dividir la distancia (en kilómetros) total en el tiempo (en horas). Entonces la operación sería:
4km/1,5h = 2.66 km/h.
Posteriormente, para convertir 2.66 km/h en m/s es necesario aplicar la siguiente formula
2.66 km/h *(1000 m/1 km)*(1 h/3.600 s) = 0.738 m/s.
Which of the following would be the most likely effect if the Wilderness Act were to be repealed?
Fishing interests would lose protected land access to logging interests.
o Conservation officers would see a significant lack of demand for their services.
O Wood prices would increase due to a lack of industrial access to many forests.
National Parks would limit the number of services offered to national park users.
Answer:
I believe it is the 3rd one ( bottom one)
Which phase happens first in meiosis
Match the scenario to the career it describes.
1.
Geoff makes sure that a private business complies with laws
protecting deer
wildlife biologist
2. Kara calls the state fire units to respond to a forest fire.
policy analyst
3. Lynette compares proposed policy plans.
forestry manager
Ans:using a filament of spirogyra in a laboratory Demonstrate how plasmolysi wil occur
Answer:
plasmolysis is the shrinkage of protoplast from the cell wall under the influence of a hypertonic solution.this can be observed by placing the fresh filament of spirogyra in a 10% solution of common salt.the cell undergoes exomosis.
I hope this helps
omplete the passage to describe the function of the heart.
The pumping of the heart involves the alternate contraction and relaxation of the chambers of the heart. The upper chambers of the heart are called
, and the lower chambers of the heart are called
.
Answer:
The pumping of the heart involves the alternate contraction and relaxation of the chambers of the heart. The upper chambers of the heart are called at atria and the lower chambers of the heart are called ventricles.
A genetic factor for a trait is always expressed when it is present is best described as ?
Answer:
A genetic factor for a trait that is always expressed when it is present is best described as dominant.
OAmalOHopeO
what is the equation for cellular respiration? and which items are the reactants and which items are the products?
Answer:
C6H12O6 + O2 ------> CO2 + H2O + ATP. The reactants are oxygen and glucose. The products are ATP, CO2, and water.
OAmalOHopeO
Determine if the following statement is true or false and why: All organisms make their own food, but plants are the only kind to do so using sunlight. A. False, not all organisms can make their own food, only plants and some bacteria. B. False, all organisms can use sunlight to make food. C. False, plants cannot make their own food. D. True
Answer:
A. False, not all organisms can make their own food, only plants and some bacteria.
Explanation:
It's right
The description of the statement whether it is true or false is described below:
All organisms make their own food, but plants are the only kind to do so using sunlight. (False).Not all organisms can make their own food, only plants, and some bacteria. (True). All organisms can use sunlight to make food. (False). Plants cannot make their own food. (False). How do plants prepare their own food?Plants prepare their own food with the process of photosynthesis which utilizes carbon dioxide and water and synthesizes glucose in the presence of sunlight.
Plants, some photosynthetic algae, and some bacteria prepare their own food with the help of sunlight. They have a photosystem that captures the energy of sunlight in the food production mechanism.
Therefore, it is well described above.
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help is needed please
Answer:
3
Explanation:
In the Avery, MacLeod, and McCarty experiment, the transforming extract from virulent bacteria was treated with DNase, RNase, or protease before being mixed with nonvirulent bacteria. The appropriate control for this experiment is to treat the transforming extract from heat-killed virulent bacteria with:
Answer:
Nothing
Explanation:
A. Control variables generally entail little or no system change. To see if the method worked, the researchers required a positive control in which the heat-killed virulent bacteria invariably transformed the non-virulent microorganisms. This positive control involves adding "nothing" to both the heat-killed virulent bacteria before mixing them with the non-virulent bacteria.
Parthenogenesis is:
Select one:
a. Reproduction without fertilization
b. Asexual reproduction
c. Reproduction through spores
d. Reproduction through mitosis
parthenogenesis is the reproduction without fertilization
it is the process by which female produce baby without the involvement of male
What is conservation genetics?Question 82 options: conserving a species genome so that it is best adapted to the current environment harvesting and saving samples of species genomes from distinct time periods a way to inform conservation efforts based on genetic information from species techniques that preserve a low genetic diversity of an ecosystem the use of genetically modified organisms (GMOs) to strength a particular ecosystem
Answer:
a way to inform conservation efforts based on genetic information from species
Explanation:
Genetic studies in wildlife and captivity species provide significant information to understand aspects regarding the biology and ecology of species, especially endangered species. Many discoveries have been useful to solve several taxonomic issues, determine the risk of diseases, and explain reproductive problems, among other problems. What is even more important is that genetic knowledge helps to plan management programs and conservation. Together with other areas related to behavior and conservation, genetic knowledge provides the basis to carry out successful conservation strategies.
Whiteflies are common pest insects found on cotton, tomato, poinsettia, and many other plants. Nymphs are translucent and mostly sessile, feeding on their host plant's phloem (sap) from the undersides of leaves. They undergo incomplete metamorphosis into winged adults. Because whitefly nymphs cannot escape predation by moving, you hypothesize that their translucent bodies make them hard to spot by predators. How could you directly test this hypothesis?
Answer: Comparing the rates of predation on whitefly nymphs coated with a nontoxic dye versus the undyed whitefly nymphs.
Explanation:
A hypothesis refers to an assumption, which is proposed for the sake of an argument which is tested to ascertain if it's true.
The hypothesis can be tested by comparing the rates of predation on whitefly nymphs coated with a nontoxic dye versus the undyed whitefly nymphs.
Give Jeason: si System is accepted by all nations in the world.
it's very practical, because it's on base 10, so conversion between stuff like meters to kilometer is always just a multiplication with 10 to some power
like 1 km = 1000m (10³m)
or 1 m = 10^-3km = 0.001km
same reason for other SI units.
except time, that's base 60, or 12, or 24. that's more complicated, but there isn't any real competition
If you were running an experiment to determine the color of light at which beans grew best, what would be the variable?
Group of answer choices
the number of beans plants in the experiment
the amount of water you give the beans
the color of the light under which each bean is grown
the height to which you let the sprouts grow
Answer:
The number of beans in the experiment
Explanation:
I hope it helps choose me the brainer
During Meselson and Stahl’s experiment, E. coli was grown on heavy nitrogen for what purpose?
A. So each generation of DNA would have a different weight to distinguish them by.
B. To determine how the bacteria functioned with a heavier element.
C. To see how the heavy nitrogen affected their DNA.
D. So each generation of protein would have a different weight to distinguish them by.
Answer:
D. So each generation of DNA would have a different weight to distinguish them by.
I took the test
Meselson and Stahl performed an experiment to find out the semiconservative property of DNA and to differentiate the DNA weight of alternative generation both scientists used heavy nitrogen. Thus option A is correct.
What is the semiconservative property of DNA?When a double-stranded DNA undergoes replication, it results in the formation of 2 double-stranded DNAs and each newly formed DNA has one parental DNA strand and one new DNA strand and this is the semiconservative property of DNA.
Heavy nitrogen of media will appear in the newly synthesized DNA strand so each generation of DNA would have a different weight . So option A is correct.
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why are virus considered to be nonliving
Question 10 of 34
Which of the following best describes the function of the human nervous
system?
A. The nervous system transports oxygen and nutrients to the body's
tissues,
B. The nervous system collects and responds to information about
the internal and external environment,
C. The nervous system protects internal organs and assists with
movement.
D. The nervous system protects the body against infection and helps
regulate body temperature,
Answer:
B. The nervous system collects and responds to information about
the internal and external environment,
Explanation:
The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of all mental activity including thought, learning, and memory. Together with the endocrine system, the nervous system is responsible for regulating and maintaining homeostasis.
Which best describes the processes of mitosis and meiosis?
Cells in mitosis go through the PMAT stages twice to produce diploid cells while cells in meiosis go through PMAT stages once to produce haploid cells.
Cells in mitosis and meiosis go through the PMAT stages twice to produce haploid cells.
Cells in mitosis go through the PMAT stages once to produce diploid cells while cells in meiosis go through PMAT stages twice to produce haploid cells.
Cells in mitosis and meiosis go through the PMAT stages once to produce diploid cells.
Answer:
cells in mitosis go through the PMAT stages twice to produce diploid cells while cells in meiosis go through PMAT stages once to produce haploid cells, is. the best answer
Answer:
The Answer is A.) Cells in mitosis go through the PMAT stages twice to produce diploid cells while cells in meiosis go through PMAT stages once to produce haploid cells.
Explanation:
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help me please
Animals obtain phosphorus as inorganic phosphate from:
________________________
Answer:
Animals obtain phosphates by eating plants or plant eating animals
Explanation:
glad i helped
