(a) State four diseases which are transmitted through food and water
Answers
Answer:
E. Coli, Food Poisoning, Hepatitus, Salmonella
Explanation:
Contracted by eating or drinking affected food/water
Related Questions
Design your own unique flowering angiosperm. Draw it in the space below, illustrating the leaves, flowers, and fruit. Draw your plant in the box. Label each of the following: leaf, flower, fruit. {BRAINLIEST ON THE LINE}
Answers
Angiosperms are vascular plants that present flowers, fruits, and seeds protected by special structures. They can be monocotyledonous or dicotyledonous. Image attached.
What is an angiosperm?
Angiosperms are woody or herbal plants, with a wide diversity of biotypes. Among many other characteristics, we can mention the following,
They have flowers that can be either hermaphrodites or unisêxual, usually protected by perianth leaves.During fertilization, pollen grains get in touch with the ovule. They have double fertilization.They produce seeds from ovules protected in ovaries or closed carpel cavities.They can be either monocotyledonous or dicotyledonous since seeds have one or two cotyledons.In the attached files you will find an image of an angiosperm monocotyledonous plant.
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the wet bulb temperature is 10 C the Dry bulb temperature is 14 C what is the relative humidity?
Answers
The relative humidity is approximately 22.9% based on the given wet bulb temperature of 10°C and dry bulb temperature of 14°C.
Relative humidityWet bulb temperature: 10°C = 50°F
Dry bulb temperature: 14°C = 57.2°F
SVP at wet bulb temperature: 0.284 * \(e^(17.27 * 10 / (10 + 237.3))\)= 0.284 * \(e^(-7.09)\) = 0.284 * 0.000828 = 0.0002356 psi
SVP at dry bulb temperature: 0.284 *\(e^(17.27 * 14 / (14 + 237.3))\) = 0.284 * e^(-5.97) = 0.284 * 0.002562 = 0.0007296 psi
AVP = 0.0002356 - (0.00066 * (57.2 - 50) * 14.7) = 0.0002356 - (0.00066 * 7.2 * 14.7) = 0.0002356 - 0.0686 = 0.000167 psi
RH = (AVP / SVP at dry bulb temperature) * 100
RH = (0.000167 / 0.0007296) * 100 = 0.229 * 100 = 22.9%
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Accidents can occur in meiosis wherein members of a chromosome pair fail to separate at anaphase. This is called _____.
Answers
Answer:
Accidents can occur in meiosis wherein members of a chromosome pair fail to separate at anaphase. This is called nondisjunction.
Explanation:
Answer:
Nondisjunction
Explanation:
Nondisjunction occurs when homologous chromosomes or sister chromatids fail to separate during mitosis or meiosis. This leads to daughter cells with unequal amounts of DNA. In fetuses in particular, this type of accident can have extreme consequences, such as the birth of a child with Down's Syndrome or a premature death.
A farmer is analyzing cross sections of his land to determine where to build a well.
Which phrase describes the best area to dig down to the groundwater?
Answers
The best area for digging down to the groundwater (in order to construct a well) is where the saturated zone is fifteen meters deep.
The question is incomplete. The complete question is:-
A farmer is examining cross-sections of land owned by him in order to determine the location to construct a well. Which of the following given options describe the best suited area for digging down to the groundwater?
(A) where the saturated zone is fifteen meters deep,
(B) where the water table is at hundred meters deep,
(C)where the unsaturated zone is fifty meters thick,
(D)where there is a layer of clay (twenty-five meters thick) at the surface.
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Answer:
The saturated zone is 15 meters deep
Explanation:
fall in the blood pressure and cardiac arrhythmias are associated with ____.
Answers
Answer:
Potassium overdose. (Hyperkalemia, high potassium)
Explanation:
Some other symptoms that may help you to recognize this are:
• Abnormal heartbeat
• Shortness of breath
• Chest pains
• Nausea and vomiting
• Fatigue and the feeling of weakness
• Diarrhea
• Numbness/paralysis in the limbs
When individuals with certain inherited traits are more likely to survive and reproduce than those with less favorable traits, ______ occurs.
Answers
When individuals with certain inherited traits are more likely to survive and reproduce than those with less favorable traits, natural selection occurs.
Natural selection is a fundamental concept in evolutionary biology proposed by Charles Darwin. It is the process by which certain heritable traits become more or less common in a population over successive generations. Natural selection occurs when individuals with advantageous traits have a greater chance of surviving and reproducing, passing on those traits to their offspring.
The key components of natural selection are as follows:
1. Variation: Individuals within a population exhibit variation in their traits. These variations can be due to genetic differences, environmental factors, or a combination of both.
2. Selective Pressure: Environmental factors, such as predation, competition for resources, or changes in habitat, create selective pressures that affect the survival and reproductive success of individuals with different traits.
3. Differential Survival and Reproduction: Individuals with traits that are better suited to their environment have a higher probability of surviving and reproducing. They pass on their advantageous traits to their offspring, increasing the frequency of those traits in subsequent generations.
4. Heritability: The traits that confer a survival or reproductive advantage must have a genetic basis and be heritable, meaning they can be passed from parents to offspring.
Over time, through the accumulation of small changes and the elimination of less favorable traits, natural selection can lead to the adaptation of populations to their specific environments. This process is a driving force behind the diversity and complexity of life on Earth.
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. You accidentally mixed up the labeling of 2 pure cultures you incubated overnight. One is a Staphylococcus species and the other is a Streptococcus species. What could you do to identify the 2 tubes? Staphylococcus species are facultative anaerobes and Streptococcus species are aerotolerant anaerobes could you do to identibus species and the other iedes you incubated overnight
Answers
When identifying two tubes of bacteria with mixed-up labels, the following tests can be performed:
Gram staining and morphology testing.
Optochin susceptibility test.
Sensitivity to Bacitracin testing.
Catalase test.
Novobiocin susceptibility test.
Oxidase test.
Sugar fermentation test.
Indole test.
What could you do to identify the 2 tubes?
When two tubes of bacteria are mixed up and their labeling has been changed, the bacteria can be identified using a variety of tests such as Gram staining, morphology testing, optochin susceptibility testing, sensitivity to Bacitracin testing, catalase testing, novobiocin susceptibility testing, oxidase testing, sugar fermentation testing, and indole testing.
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An astronaut is planning a trip to a newly-discovered planet according to the law of universal gravitation, the astronaut weight in the new planet will be greater than his weight on earth if:
Answers
The new planet has more mass than Earth but the same radius. The mass of the astronaut will be calculated by the use of Newton's gravitational equation. The weight of the astronaut depends completely on its mass and the gravitational acceleration of the planet.
Gravitational acceleration is directly proportional to the mass of the planet and indirectly proportional to the radius of the planet. Hence, when the gravitational acceleration increases the planet's mass will increase therefore the radius will decrease. The astronaut's mass will depend on these factors.
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solve it according to the question please.
the subject is petroleum, so please solve it regardibg
this.
F- Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)
Answers
During the Cretaceous period, high temperatures and abundant vegetation resulted in increased \(CO_2\) levels, leading to the accumulation of organic matter and the formation of good source rocks for oil and gas.
During the Cretaceous period, spanning from approximately 145 to 66 million years ago, the global carbon-climate cycle played a crucial role in the development of favorable conditions for the formation of good source rocks. The period was characterized by high global temperatures and abundant vegetation, resulting in increased carbon dioxide \((CO_2)\) levels in the atmosphere.
The elevated \(CO_2\) levels fueled vigorous photosynthesis, leading to the accumulation of organic matter in marine and terrestrial ecosystems. As this organic matter was buried and subjected to heat and pressure over millions of years, it transformed into oil and gas, creating potential source rocks. The warm climate and prolific vegetation during the Cretaceous, along with the subsequent geological processes, contributed to the formation of the rich hydrocarbon reserves that are vital to our energy resources today.
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The correct question is:
Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)
NEED ANSWER ASAP. Individuals with advantageous traits for their environment have a better chance of surviving
than those with less helpful traits. Explain how this is demonstrated in the moth information
above. Use specific information and examples.
Answers
Answer:
The moth with camoflauged skin will have a better chance of surviving because it will be harder for predators to see them.
Explanation:
Sorry but I can't quote anything because I don't have the book.
[Anatomy, Nervous System] _____ neuroglia are responsible for the continuous flow of Cerebral Spinal Fluid with their cilia.
Answers
Ependymal cells are ciliated columnar epithelial cells that form tight connections along the ventricles that create a continuous flow of Cerebral Spinal Fluid with their cilia.
What is Cerebral Spinal Fluid?The cilia are in charge of transporting the CSF across the CNS (central nervous system.
The central canal of the spinal cord and the ventricles of the brain are lined by epidermal cells that are organized in single-palisade arrays.
Therefore, the choroid plexus epithelium and ependymal cells of the ventricles create the majority of the CSF.
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How can ultrasound check for cracks in metal?
Answers
Answer:
The newly developed SONOSCAN angle probes of SONOTEC for non-destructive material testing check metals for cracks and inclusions. They are mainly used in the metal industry. The ultrasonic probes are able to detect critical defects as well as quality deficiencies of welds.
Explanation:
hope it helps please mark me as a brainliest please m
Answer:Computers are able to create detailed images by combining many ultrasound reflection readings
Explanation:
Cells which are found within the active organs in the human body would have the most chloroplasts true or false
Answers
The human body's active organs contain cells with the highest concentrations of chloroplasts: FALSE
In Human body, are there no chloroplasts.
We are descended from a line of animal cells that didn`t own chloroplasts or permit them to withstand digestion once they ate plants. Those few that controlled to develop and divide, maintaining chloroplasts could now no longer be as green as animals with out chloroplasts that absolutely had been capable of consume different organisms.
Also, as pointed out, our surfaces are a whole lot too small to take in sufficient mild to offer the non-stop shops of power we want to keep frame temperature and guide our absolute requirement for gasoline for the feature of an excessive order energetic mind or muscle groups that permit transportation and lengthy distance running, key functions of being human.
If we had been engineered to have chloroplasts in our pores and skin and survived in continuously difficult environments and survived, with much less and much less captured food, we'd evolve to be desk bound and now no longer want our muscle groups now no longer outrun all different creatures on the earth and now no longer rely on an power ingesting mind, to the volume that photosynthesis could be sufficient, we'd have reduced in size and simplified our our bodies to axrudementary vestigial and turn out to be like avenues fly lure possibly or forgo ingesting altogether.
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During SDS-polyacrylamide gel electrophoresis, a. the largest proteins move faster towards the negative electrode. b. the smallest proteins move faster towards the positive electrode. c. the largest proteins move faster towards the positive electrode. d. the smallest proteins move faster towards the negative electrode.
Answers
B. During SDS-polyacrylamide gel electrophoresis the smallest proteins move faster towards the positive electrode.
SDS- polyacrylamide gel electrophoresis( SDS- runner) is a popular system for separating proteins by molecular weight. It works on the idea that when exposed to an electric field, SDS attaches to proteins and gives them a invariant negative charge, allowing them to be sorted depending on size.
SDS- runner involves mixing a protein sample with an SDS- containing result and hotting it to denature the proteins and break them down into their subunits. After that, the sample is put onto a polyacrylamide gel that's squeezed between two electrodes and exposed to an electric field. lower negatively charged proteins move hastily than bigger negatively charged proteins through the gel towards the appreciatively charged electrode.
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What extended schleiden's hypothesis by suggesting that animal tissue was made up of cells?
Answers
Theodore Schwann extended Schleiden's hypothesis by suggesting that animal tissue was made up of cells.
What is the cell theory?The cell theory is the theory that states living things are composed of basic units of life called cells.
The cell theory was first developed by Schleiden who observed animals through a microscope.
The cell theory was then further developed by Theodore Schwann based on Schleiden's hypothesis.
The cell theory developed by Theodore Schwann states that:
All organisms are made of cellsCells are the basic units of life.All cells come from preexisting cells that have multipliedThis cell theory has been used to develop the modern theories about cells.
In conclusion, the cell theory is the theory which states that all living things are made up of cells and that cells are the basic unit of life.
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Abdul put cress seeds on wet filter paper in dishes. He put 20 seeds in each dish. Every day he added 5 cm3 of water to each dish. He kept each dish at a different temperature. How many different temperatures did Abdul use?
Answers
Answer:
8 different temperatures
Explanation:
The annexed chart is required to answer this question and should have been provided.
From this chart, we can see that Abdul kept different dishes at 17, 18, 19, 20, 21, 22, 23 and 24 °C, and that at 22°C he experienced the highest number of germinated seeds.
Therefore, Abdul used 8 different temperatures.
Describe This plant cell has been sliced in help and you are looking into one of the halves. How would you describe the structure of the cell?
Answers
Which of the following molecules is synthesized at specific times during the cell cycle and
forms an active complex with a kinase?
A)PDGF
B)MPF
C)Cdk
D)cyclin
Answers
Answer:
D. Cyclin
Explanation:
Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.
Cyclin is synthesized at specific times during the cell cycle and forms an active complex with a kinase.
The phases of the cell cycle are directed by a highly complex and finely regulated protein interaction network.
Among these proteins, the phosphorylating enzymes called cyclin-dependent kinases (CDKs) and their activating subunits the cyclins (A, B, D and E) stand out.
The cyclin-dependent kinases undergo phosphorylation on their amino acids (serines and threonines).The cyclins (so called because they appear and disappear throughout the cycle), bind to the CDKs and control their phosphorylation reactions.The cyclic assembly between these two compounds, cyclins and CDKs, their activation and disassembly are the central processes that direct the cell cycle.Therefore, we can conclude that cyclin is synthesized at specific times during the cell cycle and forms an active complex with a kinase..
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analyzing concepts: the offspring of two short tailed cats have a 25% chance of having no tail, a 25% chance of having a long tail, and a 50% chance of having a short tail. using this information, what can you hypothesize about the genotypes of the parents and the way in which the tail length is inherited?
Answers
The offspring shows an intermediate or blended phenotype. In the context of inheritance, the genotype can help predict the possible phenotype or the observable traits of the offspring.
25% of the offspring have a long tail. This outcome is possible only when one of the parents is carrying the allele for a long tail, which expresses the long tail trait. The allele for the short tail is unable to dominate the long tail allele, and therefore the phenotype of the long tail is expressed. Genotypes are the genetic makeup or the genetic constitution of an organism. Genotypes are inherited from the parents and can determine the characteristics of the offspring. The genotype represents the combination of alleles that an individual organism carries for a specific trait or a set of traits. The genotype can be homozygous, which means having the same allele pair for a particular trait, or heterozygous, which means having different alleles for the same trait.1. Genotypes of parents:
From the given data, we know that the offspring of two short-tailed cats have a 50% chance of having a short tail. It means that the genotype of at least one of the parents is “SS,” where “S” represents a short tail.The other parent can either be “SS” or “SL,” where “L” represents a long tail. It is because the offspring of two short-tailed cats have a 25% chance of having a long tail, which is only possible if one parent is carrying the allele for a long tail. Therefore, the genotype of parents can be SS x (SS or SL) or (SS or SL) x SS.2. Inheritance of tail length:
We can conclude that tail length is inherited as an incomplete dominance because the offspring of two short-tailed cats have a 25% chance of having no tail. This outcome is possible only when both parents are heterozygous for the tail length. Therefore, they both have one allele for a short tail and one allele for no tail. The heterozygous condition is also referred to as “incomplete dominance” because neither of the two alleles dominates the other allele.Learn more about genotype: https://brainly.com/question/902712
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List two species that belong to the same Kingdom, Phylum and Class.(Site 2)
Answers
Answer:
The image has your answer :)
Explanation:
the following sensory processes is most activated when a person iswatching a silent movie?
A. thermoreception
B. chemoreception
C. mechanoreception
D. photoreception
Answers
The answer is D. Photoreception. When a person is watching a silent movie, their eyes are focused on the visual images displayed on the screen.
This visual information is received by the photoreceptor cells in the eyes, which convert the light waves into electrical signals that are sent to the brain. The brain then interprets these signals as images, allowing the person to see and understand what is happening on the screen. Thermoreception, chemoreception, and mechanoreception are sensory processes related to temperature, taste, and touch respectively, and are not involved in watching a silent movie.
Therefore, the most activated sensory process when watching a silent movie is photoreception.
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Why are decomposers classified as heterotrophs?
Answers
Answer:
Becuase they break down and feed on organic molecules (the remains of dead organisms) and release inorganic molecules
Explanation:
The less biodiverse an ecosystem is, the more sustainable it is?
True
or
False
Answers
Answer:
False
Explanation:
The more biodiverse a ecosystem is, the more sustainable.
________ exists when the immune system does not respond to a particular antigen.
Answers
Answer:
tolerance exists when the immune system does not respond to a particular antigen.
Mutations cause changes in _____.
Multiple choice question.
cross out
A)
elements
cross out
B)
proteins
cross out
C)
compounds
cross out
D)
essential nutrients
Answers
What materials does cells need to transport
Answers
Answer:
one of them is protein but I am pretty sure there is more
Fossil fuels, such as gas, oil, and coal have ____ energy.
Answers
Answer:
A. chemical energy
Explanation:
Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy.
which observation led wallace to conclude that all species are connected in a tree of life? different species migrated from australia to the islands of the malay archipelago. both the butterflies and the birds he studied had wings. around the globe, the more similar two species are, the closer to each other they tend to live. darwin had published the same ideas in on the origin of species.
Answers
The observation that led Wallace to conclude that all species are connected in a tree of life is: Different species migrated from Australia to the islands of the Malay Archipelago.
Wallace, a British naturalist, conducted extensive research and exploration in Southeast Asia, including the Malay Archipelago (now Indonesia, Malaysia, and surrounding areas) during the 19th century. He observed that certain species found in the Malay Archipelago were closely related to species found in Australia, but were distinct from species found in mainland Asia.
This observation provided evidence for the theory of evolution and the idea that species share common ancestors and are connected in a tree of life, which was similar to the ideas published by Charles Darwin in his seminal work "On the Origin of Species." Wallace's contributions to the understanding of evolution and his insights on species distribution and migration are considered significant in the development of the theory of evolution by natural selection.
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A certain species of grasshopper can have red stripes, yellow stripes, or red and yellow stripes. An RR grasshopper has red stripes, a YY grasshopper has yellow stripes, and an RY grasshopper has red and yellow stripes.
A grasshopper with red and yellow stripes mates with another grasshopper with red and yellow stripes.
What ratio would be expected in the phenotypes of their offspring?
1 with red stripes : 2 with red and yellow stripes : 1 with yellow stripes
2 with red and yellow stripes : 2 with yellow stripes
3 with red and yellow stripes : 1 with yellow stripes
3 with red stripes : 1 with yellow stripes
Answers
The expected phenotype ratio of the offspring from the cross would be 1 with red stripe, 2 with red and yellow stripes, and 1 with yellow stripe. Option 1.
Monohybrid crossingAccording to the illustration, the inheritance pattern of color in the grasshopper species is codominance.
Red striped grasshopper is RR, and the yellow stripe is YY, while RY grasshoppers have both red and yellow stripes.
Now, a grasshopper with red and yellow stripes (RY) mates with another grasshopper who also has red and yellow stripes (RY):
RY x RY
RR RY RY YY
Since RR is red stripe, RY is red/yellow stripes, and YY is yellow stripe; then, the phenotype ratio of the offspring from the cross would be:
1/4 or 25% red stripe1/2 or 50% red and yellow stripes1/4 or 25% yellow stripeIn other words, the phenotype ratio from the cross would be 1 with red stripe, 2 with red and yellow stripes, and 1 with yellow stripe.
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Where in the oceans are the highest values of salinity found?
in mid latitude regions, wind qusts are strongest
in subtropical regions, where evaporation exceeds precipitation
O near the equator, where precipitation exceeds evaporation
O in polar regions, where ice sheet volumes are shrinking
Answers
Answer: in subtropical regions, where evaporation exceeds precipitation
Hope it helps :)
Explanation: