Answer:
1- Which bacteria seem to be most frequently used in the production of food? Lactobacillus.
2- Why might the influenza vaccine be less effective than other vaccines? Becuse of how fast flu viruses mutate.
3- Which diseases of the gastrointestinal tract can be acquired by swimming in a pool or lake? Why are these diseases not likely to be acquired while swimming in the ocean? The diseases og the GI can be acquired in a swimming pool or lake are: giardia, cryptosporidiosis , qtitis externa, legionella and pseudomonas dermatitis. These are not likely to be acquired in the ocean because of the salt.
4-How is cholera transmitted? How does an earthquake promote transmission? Cholera is transmitted by vibrio cholerae O:1 and O:139 , through fecal-oral route or by eating or drinking contaminated food or water. During an earthquake transmission is promoted because of the contaminated water and inadequate sanitation.
Explanation
1- Lactobacillus is the bacteria most frequently used in food industrydustry, where there are many products.
2- Flu viruses are in constant change and mutation. Vaccines are more effective for some types of viruses. The effectiveness vary through the differents types and subtypes.
3- The salt in the ocean dehydrates cells, and affect them by killing them or stopping their growth. There are less bacterias tolerant to salt.
4- When there is an earthquake, WASH facilites might be affected by the disaster. When water contaminates with the cholera virus, it spreads really fast and easily.
Why is ocean acidification dangerous?2-3 complete sentences
Answer:
Carbonate is important to marine life, especially those with exoskeletons and shells, who form their protective casings from carbonate. Ocean acidification reduces the amount of available carbonate, and can cause their shells to crumble and dissolve. Animals then have to spend extra energy either repairing their shells or thickening them to survive.
what does it mean if a micrograph is false colored?
What are 3 disease caused by microbes??
Answer: Anthrax, Leprosy, Whooping cough
Explanation:
1. A cool piece of iron gets warm when a red-hot piece of iron is placed a few inches
away. How is heat transferred in this scenario?
Answer:
Convection currents in the air between the pieces of metal transfer all the heat. The air between the two pieces of iron emits thermal radiation that is absorbed by the cool iron.
There you go, hope this helped.
Heat energy is transferred from one matter to another through various modes and methods. A cool iron piece heats due to convection that transferred the heat from the hot iron.
What is convection?Convection has been one of the modes of thermal heat transformation that uses matter to transfer the heat from higher to lower concentrations, unlike the radiation mode. The matter particles move from hot to lower temperatures.
The air present between the cold and hot iron piece acts as the medium by which the cold iron piece absorbs the heat transferred by the hot iron piece. This thermal energy is emitted and absorbed due to the difference in temperature.
Therefore, the process of convection facilitates the thermal heat transformation from hot to cold iron objects.
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9. In order to grow two of the exact same plants, a person would reproduce them asexually because the
a) genetic diversity is greater. b).offspring would be genetically identical. c. recessive traits would emerge d). negative traits are suppressed.
Answer:
b).offspring would be genetically identical.
Explanation:
To grow the exact same plants, a person would reproduce asexually because the offspring would be genetically identical. Hence, the correct answer is option b.
What are the different modes of reproduction?There are two different types of reproduction: sexual reproduction and asexual reproduction. In sexual reproduction, the offspring that are formed are slightly different from the parents. This is due to meiotic cell division. Variations in offspring are seen as a result of gene crossing over.
In asexual reproduction, all the offspring are identical to the parents. It is similar to mitosis. Recombination and crossing over do not occur here.So in order to get the exact same plant, this type of reproduction is done by taking a branch from a tree, etc. Others are incorrect statement options.
Hence, to get the exact same plants, a person should go for asexual reproduction, as they produce genetically identical offspring. Option b is the correct answer.
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What are the only types of
cells to contain a cell
membrane?
A. animal cells
B. plant cells
C. all cells
Answer:
B
Explanation:
Answer:
C. all cells
Explanation:
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
i think its increase in precipitation
If CO2 is increasing but ethanol is not increasing, what is occurring?
Answer:
Both the products of yeast fermentation, ethanol and CO2, act as product inhibition. Its not toxic, but CO2 will inhibit further fermentation activity of culture yeast.. Hello there. ... Its not toxic, but acid produced during fermentation, will increase the H+ ions in ur media which will hinder further yeast growth.
When no increase in ethanol concentration, while the increase in carbon dioxide, there will be a decrease in the fermentation rate.
What is the role of carbon dioxide in ethanol fermentation?Ethanol fermentation is the process of conversion of sugars into carbon dioxide and alcohol.
The ethanol and carbon dioxide are the products of the ethanol fermentation reaction. The products act as inhibitors of the reaction.
With the increase in the concentration of carbon dioxide, the inhibitor concentration increases, resulting in the inhibition of the fermentation reaction.
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Algae that form colonies of individual cells working together; some specialized cells
Answer:
Many algae consist of only one cell, while the largest have millions of cells. In large, macroscopic algae, groups of cells are specialized for specific functions, such as anchorage, transport, photosynthesis, and reproduction; such specialization indicates a measure of complexity and evolutionary advancement.
pls help me with this immediately!!! and pls don’t guess and leave links only answer if u actually know. (i’ll be leaving brainiest to the correct person)
Answer:
The answer is the Sweating, your body releases water to cool down the skin of your body!
Explanation:
So it would mean the answer would be the third choice hope this helped
1. State three ways in which protein are important to plant
(3marks)
Proteins are important in plants in order to synthesize cellular components (e.g., organelles), provide structural support cytoskeleton) and carry to metabolic reactions (enzymes).
Proteins are fundamental biomolecules composed of amino acids linked by peptide bonds.In cells, proteins can play diverse structural and enzymatic roles.For example, structural proteins are required to synthesize ribosomes, which serve to assemble other proteins that form the cytoskeleton of cells. Moreover, enzymes are proteins capable of catalyzing chemical reactions such as photosynthetic reactions.In conclusion, proteins are important in plants in order to synthesize cellular components (e.g., organelles), provide structural support cytoskeleton) and carry to metabolic reactions (enzymes).
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4. What are three types of energy storage molecules?
Answer:
They include the lipids, proteins, carbohydrates, and nucleic acids.
Hope this helps
Which diagram below would be the most beneficial in determining the inheritance of a trait or disease though several generations?
a. A
b. B
c. C
d. D
Answer:
D
Explanation:
D diagram represent as pedigree chart would be the most beneficial in determining the inheritance of a trait or disease though several generations. So, the correct option is D.
What is Pedigree chart?A pedigree chart, which is most frequently used to represent people, show dogs, and race horses, depicts the incidence and manifestation of phenotypes of a specific gene or organism as well as its descendants through one generation to the next.
A pedigree chart that includes all the family members can serve as a substitute for a family tree. They can have a hereditary condition or be a disease carrier. Standard symbols are employed inside the pedigree analysis to distinguish between various lineages. The most useful tool for determining how a characteristic or disease is passed down across numerous generations is a pedigree chart.
Therefore, the correct option is D.
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Looking at the overall structure of the catkins, how do you
think these trees evolved to have their pollen disperse?
Answer: just look it up on goegle
Explanation:
Sweat and skin secretions contain a mixture of molecules that kills or limits the growth of many types of microbes. This control of microbes is an example of
A. a feedback loop to maintain homeostasis
B. a nonspecific defense against infection
C. a specific immune response to infection by microbes
D. an enzyme-catalyzed biochemical reaction
These type of microbes is an example of a specific immune response to infection by microbes.
What do you mean by microbes?Microbes are tiny living things that are found all around us and are too small to be seen by the eye. They live in water, soil, and in the air. The human body is home to millions of these microbes too, also called microorganisms. Some microbes make us sick, others are important for our health.
Moreover, there are several types of microbes, which include bacteria, archaea, protozoa, fungi, algae, lichens, slime molds, viruses, and prions.
Therefore, most of these organisms can survive outside of a host in the air or soil, with the exception of viruses, which can only survive for a brief time outside their host cells.
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Please help if you know the answer please
Answer:
Vascular Plants have special vessels that help the plant carry water and sunlight/food throughout the plant, making it survive in conditions where the place has enough sunlight and water. Non vascular plants however don't rely on these, as they rely on the moist locations in places like South America and Hawaii, and dont rely on roots for water comsuption.
Explanation:
Biodiversity true or false?
1) Relationships between different species are very important.
2) An environment with 2 million corn plants is more biodiverse than one with 100 corn plants, 25 butterflies, and several other animals.
3) Biodiversity refers to the variety of life in an ecosystem.
4) High biodiversity helps to ensure resilience and stability. In other words, ecosystems with high biodiversity are usually healthier.
Answer:
All are true besides (2)
Explanation:
diversity is variety of things, not mass of them
Considering the most important ecological issue of the future, what is the biggest challenge the world will face in its dedication to conservation and restoration in the future?
The number of species in an extinction vortex
Spread of disease and parasites via corridors
The amount of land and energy resources
The pressures of its growing population
Answer:
its the amount of land and energy resources or the pressure of its growing population.
Explanation:
It is likely that the biggest challenge the world will face in its dedication to conservation and restoration in the future will be the pressures of its growing population, which is the last option.
What is population growth?As the population grows, there will be an increased demand for food, water, energy, and land, which will lead to habitat loss, deforestation, pollution, and climate change. These factors can exacerbate other ecological issues, such as the number of species in an extinction vortex and the spread of disease and parasites via corridors. Therefore, it is crucial to address the root cause of these problems by promoting sustainable practices and reducing our impact on the environment.
Hence, it is likely that the biggest challenge the world will face in its dedication to conservation and restoration in the future will be the pressures of its growing population, which is the last option.
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Two frog populations (same species) living in two neighboring lakes sing slightly different courtship songs. Increased irrigation makes the land between the two lakes wetter, allowing frogs to expand their ranges to the area between the lakes. Females in both populations prefer loud frogs to quieter frogs but do not distinguish between the two slightly different songs. Assuming that courtship song differences have a genetic basis, predict what will likely happen to the songs of the two frog populations.
A. You cannot predict a change in the courtship songs at the two lakes.
B. Disruptive selection will cause the songs to differentiate even more.
C. The songs will become more similar to each other.
D. Males will become louder.
E. Genetic drift will cause the songs to differentiate even more.
Answer:
C. The songs will become more similar to each other.
Explanation:
To answer this question, first, you need to remember that both populations belong to the same species, so they can mate because there is no reproductive barrier. The only limiting physical factor impeding individuals of both groups to cross was the piece of land before the land got wetter. So once populations got together, individuals can easily mate.
One population´s males exhibit a courtship song that slightly differs from the one of the other group. This difference has a genetic basis. But females hardly notice the difference. All of them prefer loud frogs to quieter frogs, independently of the population to which they belong.
So when the two populations get together, individuals get mixed. Females do not recognize males of their group, and during the breeding season, all females will mate the most with louder males of any of the population. So females from population A might mate with males from population B, and females from population B might mate with males from population A. So after mating season, there is also a genetic mixture between populations.
The new generations will carry elements of both genotypes. So males´ songs will be even more similar to each other. Songs will become more similar to each other because individuals of both populations are mixed and mated, and their genes intercrossed, producing new individuals with genes of both populations.
Which of the following statements about organelles is NOT true?
A. Chloroplasts contain chlorophyll and are the site of photosynthesis.
B. Many of the same organelles are located in both plant cells and animal cells.
C. The nucleus in an animal cell has a different primary function than in a plant cell.
D. The endoplasmic reticulum has several roles, including packaging and transporting proteins.
Answer: C. The nucleus in an animal cell has a different primary function than in a plant cell.
Explanation:
In both plant and animal cells, the nucleus safely stores the DNA so it doesn't get damaged.
Select all that apply.
Taxonomy _____.
Answer:
classification or c on edge
Explanation
Describe how each of Newton’s laws may be observable during a car trip.
If the seat belts on any passengers are fastened, the vehicle will also slow down until everyone is at rest. Additionally, if a car was moving straight when another car struck it, the direction of the car would shift.
What are newton's three law of motions ?According to the first law, until a force acts on an item, it will not alter its motion. According to the second law, an object's force is determined by multiplying its mass by its acceleration. According to the third law, when two objects interact, they exert equal-sized and opposite-direction pressures upon one another.
There's a fourth law , it states that every object tends to remain in the state it is in right now. We refer to this propensity as inertia. Every object tends to remain in the state it is in right now.
Therefore, If the seat belts on any passengers are fastened, the vehicle will also slow down until everyone is at rest (First law) . Additionally, if a car was moving straight when another car struck it, the direction of the car would shift (Third law).
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The area around the pond is an oak-hickory forest. After the pond fills in, the area will undergo another series of stages of succession and eventually develop into the oak-hickory forest. What is the oak-hickory forest?
A) Climax community
B) Pioneer species
C) Midsuccessional species
D) Primary producers
Answer:
A) Climax community
Explanation:
I got it correct
In Guinea pigs, short hair is dominant and long hair is recessive. A
heterozygous male is crossed with a long-haired female. They have a litter
of six babies. Answer the following: (a) What letters will you use for this
cross and what will they represent? (b) What is the parent cross? (c) What
are the possible genotypes of the offspring, and what percent will carry
each genotype? (d) If they have six babies, how many would you expect to
have long hair? short hair? *
Answer:
a. S represents allele for short hair while s represents allele for long hair.
b. Ss (male) × ss (female)
c. 50% Ss, 50% ss
d. 3 long hair (ss), 3 short hair (Ss)
Explanation:
This question involves a single gene coding for hair length in guinea pigs. The allele for short hair (S) is dominant over the allele for long hair (s).
a. Letter "S" will represent the allele for short hair while letter "s" will represent the allele for long hair.
b. According to this question, a heterozygous male is crossed with a long-haired female. The genotype of the male guinea pig is "Ss" while that of the female is "ss". (see attachment for the punnet square)
c. The possible genotypes of the offsprings in this cross are: Ss and ss, each carrying 50% each as they are produced in a ½ Ss: ½ ss.
d. Since 50% of the offsprings will be both short haired and long haired, If they have six babies, 3 of them will be short-haired while 3 of them will also be long-haired.
Pulmonary veins:
A) split off the pulmonary trunk
B) transport oxygenated blood to the lungs
C) return blood to the right atrium of the heart
D) transport oxygenated blood to the heart
Answer:
D. transports oxygenated blood to the heart
Explain how and why you would conduct a study to determine if this bone can be used to determine sex
Answer:
The pelvis is the best sex-related skeletal indicator, because of distinct features adapted for childbearing. The skull also has features that can indicate sex, though slightly less reliably. Males have a square jawline and the line between the outer edge of the jaw and the ear is vertical. Conversely, in females the jaw is much more pointed and the edge of the jaw slopes gently towards the ear.
Explanation:
Examine the data table for optimal ranges of environmental conditions for aquatic species. A student wants to
maximize the number of species that are able to be maintained in the freshwater aquarium in the laboratory. The
conditions of the aquarium have been adjusted to be at 6.4 pH, 18 degrees Celsius, and less than 3 mg/liter for
ammonia. Assess which species will thrive in these conditions and select ALL that apply as your answers.
Answer:
A&B
Explanation:
Plants will thrive and Bacteria will thrive
What fraction of their genetic material does each parent give to their child? Explain why.
Answer:
Each parent contributes, on average, half of the genetic material of each child. If a parent has n children, what percentage of the parent’s genes exist in total across all n offspring?
How can one generalize the solution to #1, to make it applicable to more distant relationships like uncles & aunts, grandparents, and cousins, where the fraction of shared genes is smaller?
Which organelle is a fluid-filled structure designed for storage? *
A. Ribosome
B. Vacuole
C. nucleus
D. mitochondria
HELP ME PLEASEEE
Answer:
vacoule in plants cell only and it stores food
Compare and contrast the comparison microscope to the compound microscope.
Answer:
number of lenses used to magnify specimen. 1 vs 2 lenses in general.