Bilharzia becomes infected if you come into connection with contaminated water for example, when swimming, swimming or washing and the tiny worms tunnel into your skin. Once in your body, the worms move through your blood to areas such as the liver and bowel. After a few weeks, the worms start to lay eggs.
What are the ways of transmission of bilharzia?The parasites enter the body when a person is swimming, washing, or swimming in polluted water. They can also become contaminated by drinking the water or eating food that a person has passed in untreated water.
How can the space of bilharzia be stopped?Prevention & Control
Avoid swimming or wading in freshwater when you are in nations in which schistosomiasis happens.Drink secure water.Water used for bathing should be brought to a rolling boil for 1 minute to kill any cercariae, and then chilled before bathing to avoid burning.To learn more about Bilharzia, refer
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What has happened to atmospheric carbon dioxide level and global temperature since the graph in the interactive, which was created in the year 2014?
There has been a rise in the atmospheric carbon dioxide level and global temperature since 2014.
What is Temperature?This is referred to as the degree of hotness or coldness of a substance or body and its SI unit is Kelvin.
Carbon dioxide has been on the rise due to it being formed from the combustion of fossil fuel burning thereby leading to global warming.
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What happened to the music industry between and 1987
The music industry between 1980 and 1987 experienced an increase in quality and competition.
What is Intellectual Property Antitrust Protection Act of 1987?This was set up by the government to cater for the consumer welfare by ensuring quality was made priority over quantity.
There was an increase in quality and competition due to intellectual property laws which led to the music industry experiencing a positive turnaround.
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20 POINTS - AP Biology
In a certain population of rats....
The predicated frequency of homozygous dominant rats at are: 0.11 (Option A). See the explanation below.
What is a homozygous dominant rat?A homozygous organism has two copies of the same allele for a gene.
If an organism has two copies of the same dominant allele, it is homozygous dominant; if it has two copies of the same recessive gene, it is homozygous recessive.
What is the justification of the above answer?
Note that the total population of rats is: 200
Number of rats with brown fur = 112
The frequency of brown fur rats thus,
112/200
= 0.56
Note that it is also stated that the brown fur rats are dominant in relation to the gray fur rats. Thus, in accordance to Hardy Weinberg's equation, the frequency of the dominant rats is depicted as: p²
Thus:
p² + 2pq = 0.56
Hence, the frequency of the the Homozygous recessive gray rats is given as:
p² + q² + 2pq = 1
q² = 1 - 0.56
q² = 0.44
q = 0.663
P = 1-q
= 1 - 0.663
= 0.337
Thus the frequency of the homozygous dominant rats is:
p²
= 0.337²
= 0.1135
≈ 0.11
Therefore the correct answer is A.
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Need written answers (short) for all of these questions:( just don't have time on top of my other classes. Will vote brainliest!! need by 7/23
The functions of the organs during fertilization is illustrated below.
How to illustrate the function?Testes: The testes are responsible for the production of the testosterone in males.
Ovaries: Ovaries are responsible for producing eggs for fertilization and they also produce hormones such as estrogen and progesterone.
Vas deferens: It helps in the transportation of mature sperm to the urethra in preparation for ejaculation.
Semen: It contains sperm cells that helps in the fertilization of female eggs.
Uterus: It helps in the nourishing and housing the fertilized eggs until the offspring is ready to be delivered.
Seminal vesicle: The function is to produce and store fluid which will eventually become the semen.
Epididymis: It carries and store the sperm cells that are created in the testes.
Fallopian tube: The function is to transport the ova from the ovary to the uterus every month.
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Question:
Discuss the function of the following organs:
Testes
Ovaries
Vas deferens.
Semen
Uterus
Seminal vesicle
Epididymis.
Fallopian tube.
Look on the box that says ‘show genotype’. What is the genotype of the offspring
ASAP PLS There are lots of big words in genetics! One way to start thinking about the process of meiosis is to ask yourself some questions.
If two parents are contributing genetic material to their offspring, why don’t the genes and chromosomes double in each generation?
If each parent has two sets of genes and chromosomes, why do their offspring receive only one set from each parent?
Answer:
1) the genes and chromosomes do not double after each generations because parental sex cells are haploid and only contain one set of chromosomes. During fertilization the two cells fuse to form a diploid zygote with two copies of genes and chromosomes. For example a normal human has 46 chromosomes (2 copies of 23 chromosomes) during reproduction gametes which contain 23 chromosomes (haploid) fuse to form an offspring with the correct number of chromosomes ( 23 + 23 = 46).
2) offspring only receive one set of chromosomes from each parent so to maintain the chromosome number of humans. If this did not happen you would not be the same species.
Explain the scientific interpretation of the fossils found in the cradle of humankind.
The scientific interpretation of the fossils found in the cradle of humankind,
The Cradle of Humankind region comprises 15 major fossil sites, some of which date back 5-million years.
The name Cradle of Humankind reflects the fact that the site has produced a substantially large number of hominin fossils, some the oldest ever found, dating as far back as 3.5 million years ago.
How was the Cradle of Humankind formed?The Cradle of Humankind Site comprises a strip of a dozen dolomitic limestone caves including the fossilized remains of ancient forms of animals, plants and most notably, hominids. The dolomite in which the caves formed, started out as coral reefs flourishing in a worm shallow sea about 2.3 billion years ago.
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Which of the following best explains a way that a molecular clock can be used?
A) The number of DNA mutations in an organism is measured over time to determine how long it will take for a new species to evolve.
B) The number of DNA mutations in a species is compared to the number of DNA mutations in another species to determine the relative amount of time each species has been evolving.
C) The number of differences in a specific DNA sequence of two species is multiplied by a known mutation rate to determine the number of years of evolution that separate the two species.
D) The number of differences in the DNA sequences of two organisms of the same species is averaged to determine how many years of evolution have occurred.
According to the research, a molecular clock can be used to determine the number of differences in a specific DNA sequence of two species (c).
What is a molecular clock?It is a tool that allows us to relate the divergence time or the time elapsed since the divergence of two current lineages from their common ancestor.
It is based on analyzing and comparing the genetic material of organisms to establish the number of mutations.
Therefore, we can conclude that a molecular clock can be used to determine the number of differences in a specific DNA sequence of two species (c).
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Front legs of a cat and the arms of a human share a bone structure that suggests a common evolutionary lineage. Therefore these skeletal structures are
Answer:
homologous
Explanation:
Homologous organs are organs that share some similarities in different organisms but whose function differ in these organisms.
:)
Forelimbs of cat and arms of human share a similar bone structure, suggesting a common lineage. These type of common structure are said to be homologous structures.
Organs that function differently in different organisms but have some similarities are known as homologous organs. Although the organs are structurally similar, they serve different purposes. One of the arguments used by scientists to support evolution is the existence of homologous organs.
Even though their structures are based on the same five-digit plan, human arms and the front legs of cats serve different purposes.
Therefore, forelimbs of cat and forelimbs of humans are said to be homologous structures.
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Most skin, hair, and nail fungal infections (including ringworm) are caused by ______.
Select one:
a.
dermatophytes
b.
viruses
c.
prokaryotes
d.
bacteria
Answer: it's a.
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In which region would you find the BEST top soil
options: A-tropical
B- Artic
C-Temperate
D- Desert
The best topsoil will be found in the tropical region.
What are tropical regions?They are regions of the world located within the two tropics - tropic of Capricorn and tropic of Cancer.
The region is characterized by adequate precipitation and relatively warm annual temperature. Thus, there is a high diversity of plants and animal species.
Tropical forests are known as the biodiversity hotspots of the world. This means that the soil is rich enough to support a diverse species of plants as compared to other regions of the world.
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You would find the BEST topsoil in the Temperate region
C-TemperateHow is the soil in the temperate region?The soil of these forests is very rich in nutrients, mainly due to the natural process of leaf decomposition, which enriches the soil with nutrients. The accumulation of organic matter occurs mainly in the first horizons of the soil, which therefore have a darker color.
With this information, we can conclude that The soil of temperate region It is very rich in nutrients, mainly due to the natural process of decomposition of the leaves.
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A community is the interaction of different populations of living things true or false
Answer:
True
Explanation:
Communities can include different species also.
can samone help me fill this diagram
Starting by the top, the yellow sphere is an Amino Acid. On it's left is a Protein, formed by a chain of Amino Acids. To the right of the Amino acid it is a tRNA, the responsible for carring the Amino Acids. Under the tRNA, the arrow pointing to a red part is showing a Ribossome. Under the Ribossome box, the arrow is point to the A site of the Ribossome; and on the other side is the E site of Ribossome. At the bottom, the arrow that is pointing to the bottom part of the Ribossome is pointing to a Codon. And the last one at the left bottom site is pointing to the mRNA.
What is translation?
Translation involves "decoding" a messenger RNA (mRNA) and using its information to produce a polypeptide or chain of amino acids. Overall, a polypeptide is basically a protein (with the technical difference that some large proteins are made up of many polypeptide chains).
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Why are biogeochemical cycles important to
organisms?
A. Nutrients change forms as not every organism may use the
same form of a nutrient.
B. Energy is constantly recycled from space to sustain life on
Earth.
C. Energy is constantly being created to serve living organisms.
Answer:
importance of biogeochemical cycles through the ecosystem the cycle move the essitinal elements for life to sustain they are vitil as the recycle Store them to regulate the vital elements through the physical facets
In the cross between (R1R2 x R1R2) the ratio of resulting (R1R2) in the cross is:
what are the different types of enzymes, their importance and specific functions in the human body
Proteases, Lipases and Amylases are the different types of enzyme in the human body.
What are the different types of enzymes?There are three main types of digestive enzymes in the human body such as Proteases, Lipases and Amylases.
Proteases is a type of enzyme that break down protein into small peptides and amino acids.
Lipases is an enzyme that break down fat into fatty acids plus a glycerol molecule.
Amylases is an enzyme that break down carbohydrates like starch into simple sugars.
So we can conclude that Proteases, Lipases and Amylases are the different types of enzyme in the human body.
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What do diatoms and krill have in common?
[tex] \\ \\ [/tex]
=> Diatoms and Dinoflagellates are single-celled, eukaryotic algae. Both reside in marine environments. They are types of phytoplankton.
The correct examples of nonrenewable resources are:
petroleum, coal, and gas
water, petroleum, and coal
water, wind, and sunlight
sun, fossil fuels, and wind
Exocrine glands
absorb hormones from the blood
absorb hormones from body surfaces
secrete hormones into the blood
secrete hormones into an attached duct
The Exocrine glands secrete hormones into an attached duct.
What do exocrine glands release?While the endocrine glands release their secretions into the bloodstream, the exocrine glands secrete their substances into other organs or to the outside of the body. Some examples of exocrine glands are: sweat glands (secrete sweat), mammary glands (secrete milk) and salivary glands (release saliva)
Glands are structures formed by epithelial tissue of the glandular type that are specialized in the synthesis and release of substances.
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.
Explain whether drivers should be subject to a usage tax if their vehicles contribute more emissions
to the atmosphere.
The purpose of a carbon tax is to remember the true cost of burning carbon. Those costs are paid by those who suffer from the effects, such as homeowners, farmers, and ultimately the government.
Carbon taxes make sure businesses and consumers pay for the external charges they inflict on society.
How might tax be used to reduce emissions?Under a carbon tax, the government sets a price that emitters must pay for each ton of conservatory gas emissions they emit.
Companies and consumers will take steps, such as switching fuels or adopting new technologies, to lower their emissions to avoid paying the tax.
What should you do when more CO emission from vehicles?Drive Less
Hike or bike when you can.Use the bike-share schedules if your city or town has them.Take public transit when attainable.Carpool with friends rather of driving alone.Use ride-sharing assistance.To learn more about carbon tax, refer
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During transcription, mRNA is produced from the antisense strand of DNA. This means that the mRNA will match the
please answer only if you are sure
A)
antisense strand of DNA, substituting thymine for uracil.
B)
antisense strand of DNA, substituting uracil for thymine.
C)
sense strand of DNA, substituting uracil for thymine.
D)
sense strand of DNA, substituting thymine for uracil.
Answer:
C) sense strand of DNA, substituting uracil for thymine.
Explanation:
The antisense strand matches the sense strand. Thymine is only used in DNA while Uracil is only used in RNA.
Brainliest, please :)
Using the molecular data, make a general statement which compares the "rabbit-whale" relationship to the "dog-pig" relationship. Does the cladogram agree with this statement? Explain your reasoning
The molecular data are not found here but rabbits and whales are linked with the dogs and pigs in a cladogram due to evolutionary relationships.
What is a cladogram?A cladogram is a graphical representation used to evidence the relationships between organisms due to a common evolutionary origin.
A cladogram is composed of a root that represents the common ancestor of the group and nodes where taxonomic groups diverge.
Cladograms based on molecular data use the homology level of nucleotide sequences of the genome to determine evolutionary relationships among individuals of different species.
In conclusion, rabbits and whales are linked with dogs and pigs in a cladogram due to evolutionary relationships.
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which cycle is represented in this image?
A. Carbon cycle
B. Water cycle
C. Nitrogen cycle
D. Oxygen cycle
Carbon cycle is represented in this image.
What is carbon cycle?The carbon cycle is nature's method of recycling carbon atoms, which repeatedly go from the atmosphere into Earth's living things and back into it. The majority of carbon is kept in rocks and sediments.The remainder is kept in the ocean, atmosphere, and living things.The process through which carbon moves between the atmosphere, land, oceans, and subsurface sediments is known as the carbon cycle.Respiration, combustion, decomposition, and photosynthesis. Carbon enters plants and other living things through the atmosphere.The biogeochemical cycle known as the carbon cycle involves the exchange of different carbon compounds between the biosphere, geosphere, pedosphere, hydrosphere, and atmosphere, among other layers of the earth.Learn more about carbon cycle here:
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Max's teacher told the class that he was providing an exam with five difficult questions because this exam would take them less time to complete than a typical exam with twenty questions. The teacher said he would let them leave school when they finished and start their weekend. What obstacle did Max's teacher use to gain the students' support?
Belief perseverance
Fixation
Framing effect
Overconfidence
Max's teacher use to gain the student's support by adding the obstacle of framing effect in the examinations. Thus, the correct option is C.
What is Framing effect?The framing effect is a cognitive bias in which the brain makes all the decisions about information depending upon how the information is presented to them. In this, people decide the options which were based on whether the options are presented with positive or negative connotations to them. For examples: the students doing examination.
People tend to avoid the risk when a positive frame is presented to them however they seek the risks when a negative frame is presented to them. Framing effect occurs when the decisions which people make are changed as a result of the way in which the outcomes are described to them.
Therefore, the correct option is C.
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Using the Punnett square that you created in question number 5, what is the probability that the resulting child will be heterozygous for Huntington’s disease ?
A. 25%
B. 50%
C. 75%
D. 100%
Huntington’s disease is an autosomal dominant affection. Parental's genotype FF and ff. Cross: FF x ff. F1) 100% Ff, heterozygous individuals (Option D).
What is the Huntington’s disease?
Huntington's disease is caused by a mutation in the gene that codifies the Huntington protein (Htt).
The mutation produces an altered form of the protein leading to the neuron death in certain brain areas.
Huntington's disease characterizes for being,
Hereditary, passing from generation to generation. To express the disease the person must have been born with an altered gene.Autosomal, affecting men and women equally because the mutated gene is located on an autosomal chromosome.
Dominant, meaning that by inheriting only one copy of the altered gene from any of the parents, the receiving person will express the disease. The mutation in the gene dominates over the normal gene copy.Expressed by heterozygosis. Most people affected by the disease are heterozygous, with a normal copy and a mutated copy.
Question number 5
To produce only individuals with the genotype Ff, the parentals genotypes must be homozygous dominant and recessive. This is,
Cross: The cross is done between one homozygous recessive and one homozygous dominant individual
Parentals) FF x ff
Gametes) F F f f
Punnett square) F F
f Ff Ff
f Ff Ff
F1) 100% of the progeny is expected to be heterozygous Hh, expressing Huntingnot's disease.
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What term generally describes small chunks of rocks and debris in space?
• meteorites
• meteoroids
• meteors
meteorides
Answer:
meteorite
Explanation:
When it is in space it is called a meteorite, when coming into the atmosphere it is a meteor, and when it hits earth it is a meteoroid.
Which is a way that the amount of
competition between organisms can be
reduced?
A. Introduce more organisms that occupy the same niche
into the environment
B. Deplete an environment of its natural resources
C. Have organisms occupy different niches
D. Nothing, the organisms will eventually stop competing
for resources
What is source water?
largest body of water in an area
body of water which drains used water
body of water which is far away from an area
body of water which supplies drinking water
Select the correct answer.
The world produces about 3.9 billion tons of food every year. Of that amount, approximately 2.6 billion tons Is consumed each year. The rest is
wasted. What percentage of food Is wasted every year? Choose the closest answer.
OA 30%6
© B. 33.33%
© C. 60%6
© D. 66.66%
Answer:
B is the right answer .....
3.9-2.6=1.3
now to find the percentage :
1.3/3.9×100 = 33.33%
hope it helps....
Which of the following describes a way to recover items and use them for energy?
I. Use biofuel or biogas when available for vehicles.
II. Use recovered biomass when appropriate.
III. Reuse plastic or cotton bags for shopping.
II only
I and II
I and III
I, II, and III
I and III are the correct options that describes a way to recover items and use them for energy.
Which of the following describes a way to recover items and use them for energy?Use biofuel or biogas when available for vehicles and reuse plastic or cotton bags for shopping for use of energy instead of fossil fuels. Recycling of waste materials is a good way to reduce production cost as well as reduce pollution in the environment.
So we can conclude that I and III are the correct options that describes a way to recover items and use them for energy.
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One of the ways which describes a way to recover items and use them for energy is the using recovered biomass when appropriate.
What is biomass energy?Biomass energy can simply be defined as that energy which is generated or synthesized by living things or once living things
So therefore, one of the ways which describes a way to recover items and use them for energy is the using recovered biomass when appropriate.
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