Answer:
Enzymes are proteins that help speed up metabolism, or the chemical reactions in our bodies. They build some substances and break others down.
Explanation:
One autumn in the late 1990s, a number of people became ill after working at a single building at an industrial plant in a neighborhood of Baltimore, Maryland. Their symptoms ranged from simple coughing and other respiratory symptoms to pneumonia. At least one of the 70 people reporting symptoms died. He was 78 years old. The company voluntarily closed the building upon the recommendation of the Maryland Department of Health and Mental Hygiene. After all of the water systems at the plant were evaluated and disinfected, it re-opened and no new cases were reported.
1. Health departments often have less information than this when they start hypothesizing about the causative organism and its source. What is your first guess?
2. Describe the transmission characteristics of the suspected bacteria.
3. Is there a risk for a continuing community outbreak from these initial infections? Why or why not?
This disease is likely caused by a bacterium that was transported through the water. If water was infected only locally, likely, there are no outbreaks.
What can be guessed about the causative organism?The causative organism seems to be a type of bacteria in water. This is because disinfecting the water systems seemed to be the problem, which shows the source was there.
How are these bacteria transmitted?The suspected bacteria is transmitted through water. This seems to be the main transmission route because it seems workers experienced symptoms after drinking water.
Is there a risk for more outbreaks?If only the water of the plant was contaminated with this bacteria, it is likely there are no outbreaks. However, if contamination was general, outbreaks might appear.
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The picture shows us how the Sun's rays strike Earth. Because of the Earth's tilt on its axis, some parts of Earth are having summer
and others, winter. What letter or letters on the Earth are experiencing summer?
A) B
B) C
C) B and C
D) C and D
Answer:
B n C
Explanation: You can tell this because when you look at the diagram it shows B and C facing the sun so that means it's summer.
Answer
D.) C and D
Explanation:
It may look like B and C, but the sun hardly reaches up in the north, plus its axis is shifted so it's not technically summer for them yet, this leaves the bottom, which will rotate and give both sides the taste of summer glory.
Once the earth rotates more, it will be summer for B. and A.
But the graph shows that the answer is
D.) C and D
We have to finish dividing the cytoplasm and then back to work. Can’t wait to get back to normal
The cell cycle is a process characterized by finishing when dividing the cytoplasm and then the daughter cells back to work.
What is the cell cycle?The cell cycle is a series of cellular events that undergo a cell from its formation to its division.
The cell cycle can be divided into an interphase and a mitotic (M) phase, which ends with a process called cytokinesis.
The cytokinesis refers to the division of the cytoplasm, which is required to form two daughter cells.
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A student learning about heat transfer makes the claim shown:
"Some metals change temperature more rapidly than other metals."
The student proposes to test the claim in the laboratory by using metal rods made of iron (Fe), copper (Cu), and Aluminum (Al). In addition to the metal rods, which pieces of equipment would be useful for investigating the claim?
Group of answer choices
prism, heat lamp, screen, meterstick
beaker, digital scale, stopwatch, clamps
litmus paper, beaker, pan balance, battery
hot water, pan to hold water, stopwatch, thermometer
Hot water, pan to hold water, stopwatch and thermometer are the pieces of equipment which would be useful for investigating the claim.
What is Temperature?
This is the degree of hotness or coldness of a substance and it is measured with the use of the thermometer.
Since temperature is involved, the thermometer and heat source are important thereby making option D the most appropriate choice.
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Option D
Well the raising speed of temparature of a metal is dependent upon its specific heat capacity .
If specific heat capacity is more then the water will boil faster .
From stopwatch we can determine how fast the water boils in identical pans .
Which will help in determining specific heat capacity
Which of the following (i-iii) will a person suffer from if he/she is travelling in a train which is overcrowded?
i.Heart attack
ii.Tuberculosis
iii.Typhoid
b. Justify your answer and also mention any two symptoms of the same.
Answer:
ii
Explanation:
tuberculosis is an airborne disease if one is affected he or she can spread the disease especially in closed crowded areas.
symptoms are continuous coughing over a week,loss of weight
What is the Liquid part of blood called?
Answer:
The liquid portion of the blood is called plasma.
Explanation:
hope this helps.
The broadest taxonomic group for classifying living organisms is the.
Answer: kingdom
Explanation: The broadest category of the organism in biological taxonomy is a kingdom. Each unit or category of classification is termed as a taxon. It represents a rank.
explain how the scientific theory of evolution is supported by molecular biology
The theory of evolution is supported by molecular biology because the linear order of nucleotides and sequence homo-logy may be useful to show a common origin.
What is sequence homo-logy?The expression sequence homo-logy makes reference to the similarity level between two or more sequences (e.g., DNA sequences) in organisms.
The sequence homo-logy can be very useful to show a common evolutionary origin in a group of organisms.
The sequence homo-logy refers to the linear sequence of nucleotide bases in the DNA molecule.
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Place the organisms in order from simplest to most complex.
1.Animals
2.Eubacteria
3.Protists
4.Fungi
5.Plants
6.Archaebacteria
Answer:
The six kingdoms are Eubacteria, Archae, Protista, Fungi, Plantae, and Animalia. Until the 20th century, most biologists considered all living things to be classifiable as either a plant or an animal.
Explanation:
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What are Heterotrophs known as ?
Answer:
An organism that doesnt not produce its own food
Explanation:
Heterotrophs are consumers who eat other organisms for food, while autotrophs or producers make food by process of photosynthesis.
Answer:
A heterotroph is an organism that eats other plants or animals for energy and nutrients. The term stems from the Greek words hetero for “other” and trophe for “nourishment.”
Organisms are characterized into two broad categories based upon how they obtain their energy and nutrients: autotrophs and heterotrophs.
Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs.
Heterotrophs occupy the second and third levels in a food chain, a sequence of organisms that provide energy and nutrients for other organisms. Each food chain consists of three trophic levels, which describe an organism’s role in an ecosystem. Occupying the first trophic level are autotrophs, such as plants and algae. Herbivores—organisms that eat plants—occupy the second level. Carnivores (organisms that eat meat) and omnivores (organisms that eat plants and meat) occupy the third level. Both primary (herbivores) and secondary (carnivores and omnivores) consumers are heterotrophs, while primary producers are autotrophs.
A third type of heterotrophic consumer is a detritivore. These organisms obtain food by feeding on the remains of plants and animals as well as fecal matter. Detritivores play an important role in maintaining a healthy ecosystem by recycling waste. Examples of detritivores include fungi, worms, and insects.
based on the text how would you define a dominant gene what about a recessive gene
Dominant refers to the relationship between two versions of a gene. Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, one allele will be expressed; it is the dominant gene. The effect of the other allele, called recessive, is masked.
Human red blood cells are enucleated (i.e., they do not have nuclei). Is it possible to isolate DNA from red blood cells
Answer:
No, the genomic DNA is found only in nucleated cells.
Explanation:
hope it helps<3
what does erosion do?
A. It changes rock chemically
B.it changes rock particles into rock
C.it breaks rock down physically
D.it moves pieces of rock Please answer fast its due today
the answer to this problem is c
If your heart beats 70 times per minute, everyday of the year, how many times does it beat in a year?
Answer:
36,792,000
Explanation:
Using some math, if you say that it beats at 70 pm, then you should look for how much it beats in an hour, which is 4200 (60x70). Then you have to take that number and multiply by 24, which is 100,800. In a day it beats about that amount. Then you take that number and multiply by 365, which is 36,792,000.
What are the outcomes for hares being introduced into the grassland ecosystem
Answer: The correct answers should be the hares will multiply indiscriminately and destroy the ecosystem and the native herbivores will experience increased competition for resources.
Since the hares wouldn't have predators, and they are famous for rapid breeding, they would overpopulate the ecosystem. On the other hand, the native animals would have to compete with this population of hares for food and would have less for for themselves.
Explanation:
pls help and thank you
Answer:
image is dim due to it being in the blind spot
Which of these best explains why transfer RNA is often considered a "bridge" molecule?
A.
It "connects" the strands of RNA to form a double helix.
B.
It "connects" all of the ribosomal RNA bases together.
C.
It "connects" ribosomes with the correct amino acid.
D.
It "connects" RNA to DNA
Answer: I think it's D.
Hope this helps!
The panting responses observed in overheated birds and mammals dissipate excess heat by ________.
Answer:
Evaporation
Explanation:
The panting responses observed in overheated birds and mammals dissipate excess heat by evaporation
This plant cell was changed because...
(A) equal amounts of water moved across the cell wall
(B) the concentration of water is greater inside the cell than outside the cell
(C) more water left the cell than entered the cell
(D) the cytoplasm moves water into the nucleus
Answer:
The answer is D good luck
In which system of the human body are the red blood cells and white blood cell found?
Answer:
In the circulatory system
Explanation:
The circulatory system of the body is where all blood cells are found.
2)
The moon phase shown in the diagram is a
A)
waxing crescent
B)
waning gibbous
C)waning crescent
D)
waning gibbous
Answer:
is c
Explanation:
i took the thing
Fill in the concept map with details about linnaean taxonomy.
The classification of Linnaean taxonomy include kingdom, phylum, class, order, family, genus, and species.
What is taxonomy?It should be noted that taxonomy simply means the classification of items based on their structures and behavior.
The linnaean taxonomy is the classification that was set up by Carl Linnaeus. In this case, the classification of Linnaean taxonomy include kingdom, phylum, class, order, family, genus, and species.
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help please!!!! it’s called DNA and genetics !!!!!
Answer:
9 is mutations
Explanation:
How are antibiotics different from "classic drugs"?
Answer:
Answer at explanation part.
Explanation:
An antibiotic is a type of antimicrobial substance active against bacteria.
Classic drugs can be harmful or addicting. So antibiotics are more useful than other drugs.
Hope this helped!!!
The term used for all floating and drifting organisms in the sea is:
Answer:
The answer is Plankton
Explanation:
A collection of tiny organisms living beneath the surface of lakes, rivers, ponds, and oceans across the planet are called plankton.The term Plankton is used for floating and drifting organisms in the sea.
What are plankton?Planktons are organisms found in water that cannot float against the water current.
The word plankton is derived from Greek which means to drift and float.
Thus, the term used for all floating and drifting organisms in the sea is plankton.
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A condition or event in the environment is called a
stimulus
O homeostasis
O reproduction
O species
Answer:
A
Explanation:
homeostasis
can someone please help me with these two?
Answer:
Question 1: (A) Producers
Question 2: (C) Xylem
Explanation:
I am not sure how to explain these because its just their definitions and their role. Sorry!
true or false the lab partner working on the computer should put the bacterial filter and mouthpiece onto the respiratory transducer and then hand it to the subject
Answer:
No!
Explanation:
Safety precautions must be taken with this procedure. Such as, protective gear, bacteria should not be mixed with other substances!
Will earth run out of water?
While our globe may never run out of water as a whole, it's crucial to realize that pure freshwater isn't always available where and when humans require it. In fact, only six countries contain half of the world's freshwater. Over a billion people do not have access to adequate safe, clean water. Water scarcity will afflict the entire planet by 2040 unless water use is significantly decreased. "If we keep doing what we're doing now, there will be no water by 2040."
A type of ribonucleic acid that Incodes genetic information
Answer:
Explanation:
Cellular organisms use messenger RNA (mRNA) to convey genetic information (using the nitrogenous bases of guanine, uracil, adenine, and cytosine, denoted by the letters G, U, A, and C) that directs synthesis of specific proteins. Many viruses encode their genetic information using an RNA genome.