Which of the following compounds may be polymers
A. Carbohydrates
B. Nucleic acids
C. Proteins
D. All of these
The option (D) is correct. All of these are polymers.
What do you mean by polymers?A polymer is a substance or material consisting of very large molecules called macromolecules, composed of many repeating subunits. Due to their broad spectrum of properties, both synthetic and natural polymers play essential and ubiquitous roles in everyday life.
Moreover, polymer is a large molecule or a macromolecule which essentially is a combination of many subunits. The term polymer in Greek means 'many parts'. Polymers can be found all around us. From the strand of our DNA, which is a naturally occurring biopolymer, to polypropylene which is used throughout the world as plastic.
Therefore, examples of synthetic polymers include nylon, polyethylene, polyester, Teflon, and epoxy. Natural polymers occur in nature and can be extracted. They are often water-based. Examples of naturally occurring polymers are silk, wool, DNA, cellulose and proteins.
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A scientist measures the weight of two different animals one is 250 grams and the other is 330 grams in milligrams what is the difference between the two weights of the animals
Okay so I think this is a trick question?
Risk is __________.
A. the probability that something unwanted will happen
B. the probability that something will happen
Unlike the other eating disorders, binge eating disorder does not necessarily begin with:
When someone has a binge-eating problem, they frequently experience bouts of eating disproportionately huge amounts of food and lose control over their eating.
What are the main characteristics of eating disorders?People who have Avoidant Restrictive Food Intake Disorder (ARFID) may exhibit extreme pickiness in their eating habits.
Which can result in severe weight loss or nutritional deficiencies, but they may never voice worries about their appearance.
Periods of binge-eating are not followed by purging, strenuous exercise, or fasting, unlike bulimia nervosa.
Australian teenagers who diet are five times more likely than those who don't to develop an eating disorder.
Therefore, binge-eating disorder doesn’t usually begin with losing weight.
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Upon assessing the client's jaw, the nurse finds decreased range of motion and notes crepitus. what would the nurse suspect?
a strain or tear on any of the muscles that straighten the hip and bend the knee is known as a/an _____.
Answer:
Hamstring injury
Explanation:
A Hamstring injury occurs when one or more of your hamstring muscles is strained or pulled. They are consist of three muscles that run along the back of your thigh.
Increased activity in the ________ during rem sleep may best explain why dream images are often accompanied by a strong emotional tone.
The flexor hallucis longus muscle originates from the __________.
Which type of dna produces a light band when treated with giemsa stain?
What is a diagnostic sign for meningitis marked by the person's inability to extend the leg completely when the thigh is flexed upon the abdomen and the person is sitting or lying down?
Which of these is a process during which the hydrosphere interacts with the geosphere?
1. Solidification of water into ice
2. Absorption of rainfall by soil.
3. Evaporation of rainfall from puddles.
4. Condensation of water vapor into water.
Which part of an enzyme molecule binds to its associated substrate?
What do hypotheses, theories, and laws have in common?
The serous membrane covering the stomach and most of the intestines is called the?
The serous membrane covering the stomach and most of the intestines is known as the peritoneum. This epithelial structure, supported by connective tissue, envelops abdominal organs and has a role in reducing friction between organs.
Explanation:The serous membrane covering the stomach and most of the intestines is called the peritoneum. This membrane is an epithelial layer composed of mesodermally derived epithelium known as the mesothelium, supported by connective tissue. The peritoneum envelopes the abdominal organs and forms double sheets of mesenteries that suspend many of the digestive organs.
The peritoneum is divided into two regions: the parietal peritoneum, which lines the abdominal wall, and the visceral peritoneum, which covers the abdominal organs. The space between these two layers forms the peritoneal cavity, which contains a few milliliters of watery fluid that acts as a lubricant to minimize friction between the peritoneum's serosal surfaces.
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In the southwestern desert of the united states there are temporary ponds that form only after heavy summer rains. as a naturalist, you visit these ponds and notice that female frogs mate with males of their own species based only on their calls. the lack of mating between species would be an example of _____ and _____.
The lack of mating between frog species based on calls in the southwestern US deserts is an example of prezygotic barriers and behavioral isolation. In the fish scenario, pollution might lead to an increase in hybridization. Temporal isolation is another prezygotic barrier seen in species with different breeding schedules.
In the scenario where temporary ponds in the southwestern desert of the United States form only after heavy summer rains, and female frogs choose mates based on calls, the lack of mating between species would be an example of prezygotic barriers and behavioral isolation. Prezygotic barriers prevent different species from reproducing and producing offspring. Behavioral isolation is a type of prezygotic barrier where two species do not mate because of differences in courtship behaviors, such as mating calls in frogs.
If we look at the hypothetical situation with two species of fish that had recently undergone sympatric speciation and identified mates through color, and then pollution made it hard to distinguish such colors, it's possible that an increase in hybridization might take place due to the females' inability to accurately choose mates from their own species.
Another type of prezygotic barrier is temporal isolation, which is when two species reproduce at different times of the year and thus do not have the opportunity to interbreed. For example, two species of frogs may live in the same area, but if one breeds from January to March and the other from March to May, they would not mate with each other due to the difference in breeding schedules.
Where in the ocean are you likely to find animals that make their own light?
A. The mesopelagic zone
B. The continental shelf
C. The epipelagic zone
D. The Gulf Stream
Answer: Option A
Explanation: The second zone that is found in the ocean is the Mesopelagic zone. This zone lies from 651 to 3300 feet.
This zone has very less light as sunlight cannot penetrate upto this distance. There are hardly any plants founds in this zone and the animals here has the property of bioluminesence. This property produces light from the skin of the organism to distract the predators.
The common fishes and organism found here are giant squid, cuttle and some other molluscan.
Which branch of biology deals with the study of insects?
Ornithology
Botany
Entomology
Phycology
Olive oil, canola oil, and cashew nuts are rich in monounsaturated fatty acids. olive oil, canola oil, and cashew nuts are rich in monounsaturated fatty acids.
a. True
b. False
When the protons are concentrated on one side of the membrane, they pass through golgi complex and form what?
A woman who does not take prenatal vitamins during the course of her pregnancy is at greatest risk for:
Explain how the amount of direct sunlight hitting a location near the equator would be different than a location near to one of the poles
Does this experiment show that cd4 is the only membrane protein required for hiv entry? does this experiment show that cd4 is the only membrane protein required for hiv entry? no, the experiment shows that hiv does not utilize cd4 as a receptor. yes, because unbound cells are infected by hiv. yes, because the antibody to a protein other than cd4 was used. no, because the experiment does not test other membrane proteins.
Yes because actually this experiment shows that CD4 was the only membrane protein needed for HIV entry since only CD4 had an antibody added to it and the result leads to no HIV could infect the cell. If other membrane proteins present that were required for HIV entry, then it would also have gotten infected.
Answer:
yes, because the antibody to a protein other than cd4 was used.
What scientific tool helped in the development of cell theory?
Cellular respiration is the process involved in the breakdown of glucose molecules in order to generate energy for cellular activities given the general reaction below which of the following best describes the products labeled X and Y
C6H12O6 + O2 → _x___ + __y___ + energy
A. The products are CO (carbon monoxide) and H2O2 (hydrogen peroxide), which then decompose into carbon dioxide (CO2) and wate (H2O)
B. The products are H2O (water) and CO2 (carbon dioxide), which then undergo anaerobic respiration
C. The products are CO2 (carbon dioxide) and H2O (water) which then become the reactants for photosynthesis
D. The products are O2 (oxygen) and H2O (water), which are then used for growth and to keep the organism hydrated
Answer:
The products are CO2 (carbon dioxide) and H2O (water), which then become the reactants for photosynthesis.
Explanation:
i took the test trust me.
when does cellular respiration occur? are there any situations where living cells are not respiring?
Suppose you extracted dna from a cheek cell that contains two copies of the same alu insert (one on each homologous chromosome). after 30 cycles of pcr, how many total copies of this region would be produced (assuming successful amplification)? show your work.
After n cycles of PCR = 2^n copies of the target sequence
Where n = 30 cycles as given in the problem.
Substituting this to the identified formula, let
2^30 1,073,741,824 copies of the target sequence.
Therefore, a total of 1,073,741,824 copies would be produced.
The nurse hears the ventilator alarm come from the room of a client who is receiving mechanical ventilation. when arriving in the client's room, which assessment does the nurse perform first?
Which of the following is not a major function of the roots?
Which question can be answered by science? A. Is it acceptable to make people recycle grocery bags? B. How much water is used to produce one paper bag? C. Should the government regulate the use of grocery bags? D. Is it right for stores to provide plastic bags for free?
Hormones are ___________. chemicals released into the bloodstream by the endocrine glands chemicals found in the synaptic vesicles, which when released, have an effect on the next cell chemicals found in the soma, which when released, have an effect on the next cell chemicals released into the bloodstream by the brain