Iodine solution is prepared by dissolving iodine in a solution of potassium iodide. This iodine reagent is amber-yellow colored. When this iodine solution is added to starch solution which is a polysaccharide, the yellow colored reagent changes to blue-block color. This color change is due to the formation of a charge transfer complex between starch and the triioidide present in iodine solution. So, the correct answer is d. the presence of starches or complex carbohydrates
Mendel performed a cross between individuals heterozygous for three different traits: green versus yellow seeds (green is dominant), red versus white flowers (red is dominant), and green versus yellow pods (green is dominant). what fraction of the offspring would have been expected to have green seeds, red flowers, and green pods?
The fraction of offspring expected to have green seeds, red flowers, and green pods would be 27/64.
Assuming that the seed shape, flower color, and pod color are represented by A, B, and C alleles respectively.
Since the parents involved in the cross are heterozygous for each trait, their genotypes would be AaBbCc each.
AaBbCc x AaBbCc
See the attached image for the Punnet's square analysis of the cross that results in the offspring with the phenotypic ratio.
The proportion of the offspring with parental phenotypes is 27/64.
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This is a type of reproduction where one organism divides into two and there is no exchange of genetic information.
In what way is crossing over important for sexual reproduction
The major evolutionary episode corresponding most closely in time with the formation of pangaea was the _____.
To develop a standard or benchmark, firms need to start with
a. collecting benchmarking information.
b. determining what to benchmark.
c. forming a benchmark team.
d. identifying benchmarking partners.
The glial cell that helps to circulate cerebrospinal fluid is the
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(5.03 lc)the boxer crab, lybia tesselata, carries a small pair of anemones in its claws. when approached by a predator, it waves the anemones around, presenting the stinging tentacles and chasing away the predator. the anemones benefit by eating food particles from prey that the crab catches. what type of relationship is this?
Answer:
Mutualism
Explanation:
Mutualism is the symbiotic association between two organisms in which both the partners are benefited. In the given example, the boxer crab uses the stinging tentacles of anemone to protect itself from the predators. On the other hand, the anemone is benefited by feeding on the particles from the prey caught by crab. Since both crab and anemone are benefited, it is an example of mutualism.
Natural selection
A: eliminates favorable traits in a population
B: allows populations to change over time
C: forms new traits in a population
D: concentrates traits in a population
Two populations of birds in the same ecosystem begin to compete for the same food resources. What will most likely be the result of this interspecific competition? A. There will be a reduction in the population size of one or both species. B. There will be an increase in the population size of one or both species. C. One or both species will emigrate to a new ecosystem. D. One or both species will stop utilizing the shared food resources.
Answer:
There will be a reduction in the population size of one or both species
Explanation:
Answer: A. There will be a reduction in the population size of one or both species.
Explanation:
Interspecific competition is an ecological competition which occurs between two distinct species which compete for the same type of resource. According to the competitive exclusion principle, no two species can have the same ecological niche. The species which is more stronger and superior over the other receives the resources over the other. The other species will decline in number.
According to the given situation if the populations of birds in the same ecosystem begin to compete for the same food resource. There will be a reduction in the population size of one or both species due to the competitive exclusion principle.
Woman's bane or wolf's bane is another term for which poison?
Woman's bane or wolf's bane refers to Aconitum, a plant that produces a deadly poison. This can be related to Batesian mimicry, where a highly toxic species resembles a less toxic one, discouraging predators.
Explanation:The term Woman's bane or wolf's bane is another name for the plant Aconitum, which produces a deadly poison. This fits under the concept of Batesian mimicry because it involves a highly toxic species (Aconitum) that resembles a lower toxic one. Batesian mimicry is when a harmless species imitates the warning signals of a harmful species to fend off predators. For instance, a plant like Aconitum might look visually similar to other less toxic plants, tricking potential predators into avoiding it due to the perceived risk of poisoning.
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Which of the following statements explains how science impacts society?
A. Science creates new technology without creating any problems.
B. Science does not affect society as much as some people think.
C. Science creates new technology that benefits society, but it may also create problems.
D. Science does not help us understand the world.
Answer: C. Science creates new technology that benefits society, but it may also create problems.
Explanation:
Science is a discipline which gives the detailed explanation for the cause of natural events, natural phenomena, or natural processes through experimental evidences and supportive information.
The scientific knowledge can be useful for the development of new technology which can help the society in solving problems associated with the daily life. But can also create problem as with the advent of the technology is expected to adversely affect the natural environment. For example, the use of the fossil fuels to run the vehicle can ultimately affect the environment by causing air pollution due to the emission of the pollutants in the air.
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He fluid surrounding body cells within the tissues is called
discuss how anatomy and embryology are used to support the theory of evolution
Bacitracin blocks the transport of nag and nam across the cytoplasmic membrane to the cell wall. like other antimicrobials that block cell wall synthesis, this would result in weak cell walls and __________.
Bacitracin inhibits the movement of peptidoglycan precursors, therefore interfering with cell wall synthesis and leading to weak cell walls. This results in bacterial cells being more susceptible to osmotic lysis, causing them to rupture due to a water concentration imbalance.
Explanation:Bacitracin is an antibiotic that inhibits the movement of peptidoglycan precursors from the cytoplasm to the cell wall, interfering with cell wall synthesis in bacteria. Consequently, this results in the creation of weak cell walls and renders the bacterial cells more susceptible to osmotic lysis. This condition refers to the rupture or disintegration of the cell due to an imbalance in water concentration through the cell membrane. Osmotic lysis may occur in bacteria if too much water moves into the cell, causing it to burst. Essentially, bacitracin creates an environment in which it is difficult for bacteria to maintain their cellular structure, hence aiding in their elimination.
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Which type of plant has seeds protected by ovary layers
The largest population that an environment can support is called its
Answer: Carrying capacity.
Explanation:
Respiration _____, and cellular respiration ______.
a.uses glucose . . . produces glucose
b.produces glucose . . . produces oxygen
c.is gas exchange . . . produces atp
d.produces atp . . . is gas exchange
e.produces glucose . . . is gas exchange
Respiration uses glucose while cellular respiration produces ATP.
Explanation:In biology, respiration refers to the process by which organisms obtain energy from the breakdown of molecules like glucose. Cellular respiration, on the other hand, is a specific metabolic process that occurs within cells to produce ATP (adenosine triphosphate), the energy currency of the cell.
So, the correct answer is d. Respiration uses glucose to produce ATP, while cellular respiration is the process of producing ATP through the breakdown of glucose or other molecules.
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How did darwin use the fossil record to support descent from common ancestors and natural selections?
Which term describes and enzyme?
A. Substrate
B. Reactant
C. Catalyst
D. Product
A large tract of land is purchased by a commercial agricultural company. The land is cleared of its native flora, and a single crop is planted instead. What is the effect of this action?
Clearing land for a single crop in commercial agriculture can result in the loss of biodiversity, changes in rainfall patterns, and increased vulnerability to pests and diseases.
Explanation:When a large tract of land is purchased by a commercial agricultural company and cleared of its native flora to plant a single crop, it has several effects. One of the main effects is the loss of biodiversity as native plants and animals are displaced. This type of agricultural practice can also lead to changes in rainfall patterns and frequency and contribute to deforestation. Additionally, relying on a single crop can make the land more vulnerable to pests and diseases.
If you see two people walking and holding hands, you perceive that they are a couple because of the Gestalt principle of
What important events are in the timeline of the geological and human stories of stories of this geo scenario ?
A sample of blood from a mismatched transfusion is observed under the microscope. many large clumps of erythrocytes are observed. which is the antibody responsible for this?
explain how natural selection related to the development of diversity in and among species during the Mesozoic era
Survival of the fittest is one most important for the nature where the one who gets adapted gets survived in the nature whereas the one who is not gets demolished.
What is the basic history about evolution regarding nature ?
It is the basic hypothesis that the advanced species are developed from the ancestral ones where the one is having almost the same features but with the advancements in it.
Even during the mesozoic area the fast change in the environment the rapid change in the environment and the atmosphere changing rapidly in terms of adaptations and the living, the nature took the ones who fit the best.
The ones who fit the best in nature that the ones who strongly fit in the nature overcoming all the problems and challenges they face in nature are chosen by nature this is why it is said that it is the survival of the fittest by the nature.
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1. Antibiotics are effective at treating
A.) a common cold, but not genital warts
B.) a tapeworm infection, but not botulism
C.) strep throat, but not the flu
D.) athlete's foot, but not an ear infection
2. The sneezing, runny nose, and itchy eyes associated with allergies are cause when
A.) smooth muscles reduce the size of air passageways in the lungs
B.) the immune system attacks the body's own cells
C.) mast cells release histamines
D.) infected cells produce interferon,
What is the Wernicke's area & does it affect your ability to speak?
Which of these is not typical of a condensing protostar?
Which of the following correctly compares the changes that take place in an ecosystem during primary succession and secondary succession?
A) Primary succession takes place over a long period of time on newly formed land, while secondary succession occurs quickly in areas that have disrupted by a natural disaster.
B) Primary succession takes place quickly on newly formed land, while secondary succession occurs over a long period of time in an area that has been disrupted by a natural disaster.
C) Primary succession takes place over a long period of time in an area that has been disrupted by a natural disaster, while secondary succession occurs quickly on newly formed land.
D) Primary succession takes place quickly in an area that has been disrupted by a natural disaster, while secondary succession occurs over a long period of time on newly formed land.
Answer:
The answer is A i just took the test just Now.
Explanation:
Primary succession takes place over a long period of time on newly formed land, while secondary succession occurs quickly in areas that have disrupted by a natural disaster.
Primary succession takes place over a long period of time in an area that has been disrupted by a natural disaster, while secondary succession occurs quickly on newly formed land. The correct option is C.
What is Primary succession?Primary succession refers to the process of the gradual growth of plant and animal communities on newly formed or exposed land.
Option A is incorrect because primary succession takes place over a long period of time on bare, previously uninhabited land, while secondary succession occurs on land that has already supported life and has been disturbed by a natural or human-caused event.
Option C is correct because primary succession occurs over a long period of time in an area that has been disrupted by a natural disaster, such as a volcanic eruption or glacier retreat, and typically begins with the establishment of pioneer species such as lichens and mosses.
Thus, the correct option is C.
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