The teacher noticed that Carrie seemed quite restless today and was having difficulty concentrating on any task that she started. She continuously squirmed, whether in her chair or sitting on the floor. On a number of occasions, the teacher also observed Carrie tugging at her underwear and scratching her bottom. She recalled that Carrie’s mother had mentioned something about getting her younger brother tested for pinworms and wondered if this might be what she was observing.
Required:
If Carrie does have pinworms, for what length of time should the other children be observed for similar problems?
Answer: Other children should be observed after the average of 6 weeks from the time of exposure to Carrie who is suspected to be infected by Pin worm.
Explanation:
Pin worm also called enterobiasis vermicularis is a parasitic nematode. The eggs are found in the specimen collected from the perianal skin and in the faeces of an infected individual. In its worldwide distribution, children are more commonly infected than adults. This is so because autoinfection by swallowing infective eggs is common in children. The eggs cause intense irritation and scratching of the infected area leads to the fingers becoming contaminated with eggs. This was observed by Carrie's teacher, as she usually scratch her bottom.
Other children should be observed after the average of 6 weeks from the time of exposure to infective eggs. This is because of the direct life cycle exhibited by the worm. Following ingestion of infective eggs, the larvae hatch in the intestine. Occasionally larvae hatch from the eggs on the perianal skin and migrate back into the intestine where they grow into mature worms. This type of infection is called RETROINFECTION. The larvae develop into fully mature worms in the large intestine. The female worms migrate to the rectum, pass out of the anus and lay their eggs on the perianal skin and perineum. The eggs are produced about 6 weeks after infection. They can remain viable on bedding, clothing, household objects, and in dust for several weeks.
Therefore from the life cycle of the worm, similar problem found in Carrie can be observed in other children after about six weeks of exposure to the infective eggs of the worm.
1. In exponential population growth, A. every generation has a larger population than the generation before. B. the population remains below its carrying capacity. C. births and deaths are equal, but disease is limited. D. limiting factors eliminate predators in the population.
Which two things cause the orbits of planets to be nearly circular
Answer: Gravity and inertia
Explanation:
The rays of light change direction as they enter or leave the lens because of what change in the wave as it enters a different medium?
a) amplitude
b) frequency
c) speed
d) energy
Answer: speed
Explanation: speed of light is dirrerent in different mediums. Also wavelength changes but frequency remains same
Will give brainliest
A template strand of DNA in a gene reads:
TCT CCA AGC 5
Using the codon chart below, what is the sequence of amino acids that is produced after translation?
Choose 1 answer:
A Ser - Gly - Leu
B Arg - Ser - Gly
C Arg - Gly- Ser
D Ser - Gly - Gly
The sequence of the amino acids that is produced after translation of the template strand of DNA "TCT CCA AGC" is Arginine-Glycine-Serine. Thus, the correct option is C.
What is Codon?A codon is the set of a three-nucleotide sequence in a row that counts as a triplet which codes for a single amino acid in a peptide. Codon was first discovered by Marshall Nirenberg and Heinrich J. Matthaei.
The codon sequence encodes three different amino acids which have the mRNA sequence corresponding to DNA sequence "TCT CCA AGC" is "AGA GGU UCG" in this sequence AGA encodes for arginine, GGU encodes for Glycine, and AGC encodes for Serine amino acid.
Therefore, the correct option is C.
Learn more about Codons here:
https://brainly.com/question/9382652
#SPJ2
Which statement best explains the economic drawback of using geothermal energy over energy generated by fossil fuels?
More cost-effective over time
Higher installation costs than fossil fuel plants
More energy plant locations available
Less pollution than fossil fuel plants
Answer:
More cost-effective over time
Answer:
Could it be the higher installation costs than fossil fuel plants????
Explanation:
5. What does EGS stand for in geothermal energy?
A) Engraved Geothermal System
B) Enhanced Geothermal System
C) Exhaust Gas System
D) Engineered Geophysical System
(EGS) stands Enhanced Geothermal Systems which can greatly increase geothermal energy utilization. Therefore, option (B) is correct.
What is EGS?Enhanced Geothermal Systems (EGS), which are also referred to as engineered geothermal systems on occasion, present a significant opportunity for significantly broadening the application of geothermal energy.
In an EGS, fluid is injected into the subsurface under conditions that are carefully regulated. This causes previously closed cracks to reopen, which in turn creates permeability in the rock. The increased permeability of the rock makes it possible for fluid to move freely within the newly fractured rock and for heat to be transported to the surface, where it can be used to create electricity.
Learn more about geothermal energy, here:
https://brainly.com/question/22354034
#SPJ6
A water wave has a speed of 5 m/s. If it's wavelength is 50 m, what is its wave period? Show your work
Answer:
v=5,f=?,π=50 ,5÷50=0.1hz,T=10
How are the layers of Earth and the spheres of Earth related?
Answer: Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air).
Why is the taiga (boreal forest) considered "the driest moist biome" ?
Because it rains as little as the temperate rain forest, but retains most of its water throughout the year because of the cool temperatures.
Because it rains more than a tropical rainforest, but retains most of its water throughout the year because of the cool temperatures.
Because it rains as little as a desert, but retains most of its water throughout the year because of the cool temperatures.
Because it rains less than a desert, but retains most of its water throughout the year because of the cool temperatures.
C
Explanation:
i think its C sweethart btw how u been?
Taiga is considered as the driest moist biome because, it rains as little as the temperate rain forest, but retains most of its water throughout the year because of the cool temperatures.
What is taiga forest?In North America, Taiga is generally referred to as boreal forest or snow forest. This is world's largest biome, consist of cone bearing seed plants, mostly, of pines, spruces, and larches.
It covers most of inland Canada, Alaska, and parts of the northern contiguous United States in North America. In Eurasia, it covers most of Sweden, Finland, Russia from Karelia in the west to the Pacific Ocean, Norway and Estonia, some Scottish Highlands.
Throughout the year, taiga experience relatively low precipitation. Primarily it rains during summer, but can also be snow or fog. Due to low evaporation rate, it is sufficient for vegetation growth.
Learn more about Taiga forest, here:
https://brainly.com/question/7131637
#SPJ3
if bread is exposed to air at room temperature, fungi inevitably colonize it. what does this say about the presence of fungal spores in our environment?
Answer:
This supports the fact that fungal spores exists in the atmosphere or air
Explanation:
Fungi is a kingdom of living organisms that have distinguished characteristics from plants and animals. They propagate themselves using structures called SPORES. Some of these spores are able to withstand extreme or adverse unfavorable conditions and germinate when conditions are favorable. Most fungal spores are air-borne i.e are dispersed by air.
According to the information in this question, Fungal spores will colonize bread that is exposed to air at room temperature. This implies that fungal spores are present everywhere in the atmosphere looking for opportunities to germinate. The bread is a place conducive for fungal growth due to the presence of nutrients and a favorable temperature.
in the illustration above, the snake is a....
Answer:
I think is third level consumer
Tom has compared three skin creams and found that only one causes a rash. Tom is in the
stage of the scientific method.
O experimenting
O hypothesizing
O predicting
O evaluating
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer:
C.
Explanation:
Compounds are made up of two or more types of elements that are chemically bonded
A specific location in America produces electricity from fossil fuels and geothermal energy. The table below shows the amount of nitrogen oxide in the atmosphere of the location from 1960 to 2000.
PLZ HELP ASAP will mark brainliest
Year 1960 1970 1980 1990 2000
Nitrogen oxide concentration (in parts per million by volume) 285 258 234 199 117
Based on the table, which of these conclusions is most likely correct?
Geothermal energy was replaced by fossil fuels in 2000.
Fossil fuels were replaced by geothermal energy in 2000.
The least amount of fossil fuel was used between 1980 and 1990.
The greatest amount of fossil fuel was used between 1960 and 1970.
Answer:
The correct one is:
The greatest amount of fossil fuel was used between 1960 and 1970.
This diagram shows a red blood cell in a beaker that contains a solution with a
higher salt concentration than that inside the red blood cell.
high salt concentration
low salt concentration
What will happen to the red blood cell in this environment?
A. The size of the red blood cell will remain constant.
B. The red blood cell will swell at first and then shrink.
C. The red blood cell will swell from absorbing salt molecules.
D. The red blood cell will shrink from losing water molecules
Answer:
3. D. The red blood cell will shrink from losing water molecules
59. C. Glucose + Oxygen —> Carbon dioxide + Water
Explanation:
The red blood cell has a lower salt concentration than the liquid which means that it has a higher water concentration than the liquid.
By the process of osmosis, water will flow from the red blood cell to the liquid which would lead to the red blood cell shrinking in size.
Cellular respiration is used to create energy for cells. It works by burning glucose in the presence of oxygen. The result is an outburst of energy and CO2 as well as water.
What kind of energy transformation is taking place in the plant in the
photograph?
O A. Potential energy → Nuclear energy
B. Solar energy - Chemical energy
C. Potential energy - Kinetic energy
D. Chemical energy → Solar energy
Based on the terms provided, the energy transformation taking place in the plant in the photograph is: Solar energy → Chemical energy This is because plants undergo a process called photosynthesis, where they convert solar energy (sunlight) into chemical energy stored in glucose molecules. The correct option is B.
What is the energy transformation?The transformation of energy from one form to another is known as an energy transformation. Every second of the day, energy is transformed somewhere. Energy can be expressed in a variety of ways, including electrically, thermally, nuclearly, mechanically, electromagnetically, sonically, and chemically.
The process of photosynthesis is taking place. The plant is converting solar energy (from the sun) into chemical energy in the form of glucose (sugar). This is an example of a transformation from one form of energy (solar) to another (chemical).
Therefore, the correct option is B.
Learn more about Energy transformation here:
https://brainly.com/question/29102331
#SPJ5
People often go to genetic counselors to have a ____________ drawn to trace a disease that they do not want to pass on to their children.
Answer:
Blood test
Explanation:
The aquarium water and air pumped into the aquarium provide what component of an ecosystem?
А
biotic
B
abiotic
С
energy
D
decomposer
Answer: Abiotic
Explanation:
The aquarium water and air pumped into the aquarium provide an abiotic component of an ecosystem. Therefore, option B is correct.
What are ecosystems and their components?A biological community of living things that interacts with the surrounding environment and other nonliving elements is referred to as an ecosystem. It can also be described as the series of interactions or communications between living things and their surroundings.
There are two parts to any ecosystem: biotic and abiotic components. Abiotically refers to non-living items, whereas biotic components refer to all live organisms in ecology. The equilibrium in the environment is maintained by these biotic and abiotic interactions.
Thus, the aquarium water and air pumped into the aquarium provide an abiotic component of an ecosystem. Therefore, option B is correct.
Learn more about an ecosystem, here:
https://brainly.com/question/12162583
#SPJ6
Please help I’ll mark you as brainliest if correct! #10
Answer:
H dominant
Explanation:
If a trait has two possible outcomes and one is expressed over the other, it means one is dominant and the other is recessive. Dominant traits are expressed when there is at least one dominant allele (can be Aa or AA). Recessive traits are expressed only if both the alleles are recessive (has to be aa). If the trait is being expressed over the other one it is a dominant trait.
Select the statement below that describes a critical finding of the Franklin DNA diffraction experiment. Group of answer choices That the phosphate groups are stabilized by the presence of divalent metals in solution That base stacking is the primary force holding the DNA helix together That B-form DNA helices have a pitch of approximately 34 angstroms That the DNA bases are predominantly found in their keto form That the number of adenine residues is always equal to the number of thymine residues in a double stranded DNA molecule
Answer:
That B-form DNA helices have a pitch of approximately 34 angstroms
Explanation:
Rosalind Franklin was an X-ray crystallographer whose work contributed to the discovery of the molecular structure of DNA molecule by Watson and Crick. B-form DNA is the most common form of DNA, which consists of a right-handed double helix. B-form DNA was discovered by Watson and Crick based on the X-ray diffraction image of DNA (popularly known as image 51) obtained by Franklin. The pitch refers to the distance after every 10 base pairs along the DNA helix for one complete double-helix turn. This distance in the B-DNA helix is 34 Ångströms (i.e., 3.4 nanometers).
how would decerasing the time it takes you to run a certain distance affect your speed ?
It would mean you are moving faster than you already were.
motion
Easy if you run fast, you will get around faster, but if you crawl, then you'll be slower
Which organelle makes and secretes mucus?
Answer:
respiratory system
Explanation:
which of the following is an example of an ecosystem with a high amount of diodiversity
Answer:
Example of ecosystem with high biodiversity is tropical rain forest as seen in Amazon basin of south America. Such forests are also thriving in parts of central Africa and also in islands of Indonesia. In marine environment, coral reefs are example of high biodiversity aquatic ecosystems
Explanation:
A marsupial mole has claws for burrowing, a keen sense of smell, and reduced vision in its eyes. The placental mole, a mammal on a
different branch of the mammalian evolutionary tree, has claws for burrowing, a keen sense of smell, and reduced vision in its eyes.
Which statement(s) describe the relationship between these two moles? Select ALL that apply.
A)
Convergent evolution occurred in these two mammalian species.
B)
These two species evolved under similar environmental pressures.
C)
These two species do not have a common ancestor, but evolved from
separate lineages.
D)
Identical mutations occurred within the two different lineages creating
identical phenotypes.
E)
These two species share a more recent common ancestor than they do with
other mammalian species.
Answer: a and b
Explanation:
i just took it
The relationship between these two mammalian species is that Convergent evolution occurred in these two mammalian species. That is option A.
What is Convergent evolution?Convergent evolution is the type of evolution where distantly related organisms evolve similar traits to adapt to similar environmental conditions.
The marsupial mole and the placental mole are distant species with similar features.
Therefore, the relationship between these two mammalian species is that Convergent evolution occurred in these two mammalian species.
Learn more about evolution here:
https://brainly.com/question/26502157
#SPJ 2
the life process of reproduction refers to what
Answer:
the formation of new cells for the replacement and repair of old cells as well as for growth.
Explanation:
only right aortic arch present is (a) Reptiles (b) birds (c) mammals (d) all of these
the inclusive wealth index was created as a replacement for gdp for which reason, failure of GDP to account for literacy rate, unemployment rate, wealth, or resources within a nation
Answer:
failure of GDP to account of wealth.
Explanation:
the main reason for the creation of inclusive wealth index as a replacement for GDP because GDP can't tells us about the multi-dimensional nature of development. The inclusive wealth index measures the wealth of nations with the help of comprehensive analysis of production of a country. That is, it measures all of the assets including manufactured, human and natural capital of the country GDP is an indicator of a standard of living of a society while on the other hand, inclusive wealth index is an indicator of the wealth present in a country/
no links please on My question or I will report you
Answer:
B, or 113 Fahrenheit
Explanation:
1.Two new nuclear membranes form during_____.
2.The sister chromatids separate and move toward opposite centrioles during_____.
Answer:
1. Two new nuclear membranes form during telophase.
2. The sister chromatids separate and move toward opposite centrioles during anaphase.
Explanation:
See answer above! :)