Answer:
The answer is a) enzymes
Students in a biology class were discussing outbreaks of food-borne illness. Modern practices of refrigeration are aimed at curbing (limiting) these bacteria. They wanted to know exactly what happened to bacterial colony growth at varying temperatures. The teacher explained that scientists study bacteria in the laboratory by counting colonies that grow on plates filled with agar, which is a nutrient substance. “Design” an appropriate experiment that would test the effect of temperature on bacterial growth. You would have a period of 5 days to conduct an experiment.
Answer:
I know this isn't a big help answer, but you could use it as a start. You could say something like "I tested it in multiple different temps. including .... (any temps. you want) Then say how all of thoose different temps. changed the bacteria." I hope it helped! :)
Explanation:
Most of the foodborne diseases are caused by those bacteria that can grow well and infect food at normal temperatures, and their population can be controlled by lowering the temperature or raising the temperature too high, which can degrade their cell walls.
What is the effect of temperature on the bacteria?There are numerous bacteria that can infect food and cause foodborne disease when consumed by humans, resulting in diarrhea, stomach aches, and other symptoms. Because most of these bacteria grow at room temperature, keeping food at that temperature degrades it faster, so foods are kept and stored in the refrigerator. This low temperature keeps the cellular activity of bacteria low; as a result, the bacteria cannot produce toxins or grow their population.
Due to this, the refrigerator stores the food for a longer time. Different strains can be kept and stored at different temperatures on an agar plate, but a strain present at a low temperature will produce far fewer colonies than one present at a room temperature. Further the growth depends upon the types of bacteria.
Hence, by refrigerating the food, cellular activity is seized and controlled.
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The football player made 10 yard gain. How many inches is that?
Explain every step
Answer:
360 inches
Explanation:
there are 36 inches in a yard so do 36 times 10 and you get 360
What type of consumer do you think this coyote is? Can you tell from the photo that the coyote is not an omnivore?
Answer:
Carnivore.
Explanation:
Based on the picture alone, the coyote is eating meat, which would make it a carnivore.
Cayote is a tertiary consumer.
The photo alone cannot tell us cayote is not an omnivore.
Tertiary consumers are organisms on the fourth trophic level of a food chain. Most tertiary consumers like the cayote are omnivores.
Omnivores feed on both plants and animals. The cayote feeds not only on other animals like ducks, squirrels, fish, grasshoppers, but also feed on young plants and berries form plants.
The photo only shows us a cayote feeding on just one source of its diet which is a smaller animal. It cannot tell us that the cayote is not an omnivore because it doesn't show us the entire food web of the cayote in its ecosystem.
In conclusion, the cayote is a tertiary consumer. You cannot tell the cayote is not an omnivore from the photo.
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Embryonic similarities persist for longer between organisms
that have a closer common ancestor.
Answer:
True
Explanation:
Species which are more closely related have fetuses that look similar.
Why can water have no net charge but have slight
charges in different parts of the molecule?
Water molecule is made up of one atom of oxygen and two atoms of hydrogen. The water is a polar compound and has slight charges due to differences in the charges.
Water molecule is composed of hydrogen and oxygen and is inorganic transparent liquid. The hydrogen and oxygen in a water molecule are linked by covalent bonds.
The oxygen is electronegative and attracts electrons. There is however no overall charge on the water molecule, but atoms of the compound have slight charges.
The unequal sharing of electrons between hydrogen and oxygen can give them slight positive and negative charges, respectively.
Thus, there are slight charges present on oxygen and hydrogen.
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What is the minimum level of protein structure for an enzyme?
Answer:
Primary Structure
Explanation:
The simplest level of protein structure, primary structure, is simply the sequence of amino acids in a polypeptide chain.
More than 200 different type of cels exist in the human body. Why do you think these cells are important for various body functions? Explain your response
Answer:Different cells have different jobs to do. Each cell has a size and shape that is suited to its job. Cells that do the same job combine together to form body tissue, such as muscle, skin, or bone tissue. Groups of different types of cells make up the organs in your body, such as your heart, liver, or lungs
Explanation:
Each chromosome contains thousands of genes. What is a gene?
Select one:
O
A sequence of DNA that provides the structure for holding the nucleus together
A sequence of DNA that regulates the production of ATP in the cell
A sequence of DNA that codes for a specific protein
A sequence of DNA that regulates the replication of the nucleus
plz answer this question
Answer:
The answer in number 3 tubectomy
Which wavelength of electromagnetic radiation carries the most energy?
a. infrared
b. FM radio
c. visible light
d. ultraviolet
Answer:
d. ultraviolet
the answer is ultraviolet
Fructose is a sugar molecule that is similar to glucose. It moves from a high concentration outside the cell to a low concentration inside the cell. How would fructose enter a cell?
passive diffusion
osmosis
facilitated diffusion
active transport
Answer:
facilitated diffusion
Explanation:
i just got it right
Answer:
The correct answer to this question is facilitated diffusion
Explanation:
Mention 5 factors that
cause climate change
In an effort to relax after a stress-filled week, Joanne has a couple of glasses of wine, and her co-worker Jim takes a Valium. Both alcohol and Valium work by increasing the activity of the neurotransmitter which inhibits action potentials and slows brain activity.
Help me, anyone, if you would
Answer:
C.
Explanation:
A is incorrect because a map isn't usually called a model, unless it was a 3D map of a certain area.
B is incorrect because a brainstorming activity isn't a model. It's considered planning.
D is incorrect because the scientific method is used to hypothesize experiments.
Distinguish between catabolism and anabolism, giving an example of each reaction as endergonic or exergonic:
Answer: Anabolism builds complex molecules from simpler ones, while catabolism breaks large molecules into smaller ones.
Explanation:
a-Glycerol reacts with fatty acids to make lipids:
CH2OHCH(OH)CH2OH + C17H35COOH → CH2OHCH(OH)CH2OOCC17H35
Simple sugars combine to form disaccharides and water:
C6H12O6 + C6H12O6 → C12H22O11 + H2O
c-During cellular respiration, glucose and oxygen react to yield carbon dioxide and water
C6H12O6 + 6O2 → 6CO2 + 6H2O
In cells, hydroxide peroxide decomposes into water and oxygen:
2H2O2 → 2H2O + O2
A scientist performs an investigation and discovers that increased temperature decreases the number of offspring that an organism produces. Then, the scientist asks a new question about the impact of climate change on the species because
Answer: the results of the investigation led to new scientific questions.
Explanation:
Answer:
Option C
Explanation:
i got it right on edge
Question 5
1 pts
A pesticide manufacturer claims that a new product will decrease the pest population by 25% more than the current pesticide. A population of 75
beeties of the same species us exposed to the new pesticide for a 10-week period. A separate population of the same species of beetle is exposed to
the same amount of the current pesticide for a 10-week period. The data collected is sent to an independent research company to verify the results,
Which statement BEST explains how an independent research company verifies data to ensure unbiased results,
The company sends out the data to another researcher to investigate
The company tests many types of pesticides and draws its own conclusions
The company performs the same investigation and compares the results
The company compares the data given to similar investigations
Answer:the company will perform the same investigation and compare the results to the manufacturers
Explanation:
Just did the quiz
The independent research company performs the same investigation and compares the results.
Scientific experiments must be reproducible. For the results of a scientific experiment to be reliable, other scientists must be able to carry out the same experiment and obtain similar results as reported. This is what it means for results to be reproducible.
Hence, for the independent company to ensure that the results are unbiased, the company performs the same investigation and compares the results.
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A ______ would be a short-term energy source. (Please Help!) :)
Answer:
lightbulb?
Explanation:
a lightbulb will run out but can last a while
4. Golden shiner and mud minnows lay their eggs on Chara. In which pond would you find them?
Answer:
If there are answers like A) B) or C)
Explanation:
It would be pond C
Hope that helps! ^^
Answer:
Pond A
Explanation:
Pond A: Cattails, bulrushes, and water lilies grow in the pond.
Atoms,biomolecules,organelles,cell which is smallest to biggest
Of all other elements on the periodic table some are critical what name represents those others and what function do they serve for humans?
Answer:
They are called Trace elements
they function as catalysts for enzymatic reactions
in some oxidation-reduction reactions (Cu) for some metabolic reactions to for ATPs synthesis,and
also as oxygen carrying elements in Hb and myoglobin muscles e,g(Fe)
Explanation:
Basically Trace elements are group of minerals in small quantity in living organisms.Their functions may be important or essential to the organisms,or needed in small amounts non essentials.
Example of these elements are Fe,Zn,Se,Cu,I,Mn Mb. etc
They are also involved in prevention of some diseases .Generally when they are consumed in large amounts they are toxic to living cells.
others like aluminum, cadmium, mercury lead may beneficial to living organisms,but there role has not yet be verified.
Which is the central element for all living things?
-carbon
-hydrogen
-oxygen
-nitrogen
Answer:
carbon
Explanation:
I took the test and got it right.
Answer: carbon
Explanation:
What is heterotrophic nutrition?
Answer:
Type of nutrition in which organisms depend upon other organisms for food to survive.
Explanation:
In science Observation and experimentation correlate with what aspects of critical thinking
Answer:
The critic thinking
which may be defined by (the ability to verify assumptions, ideas, are they real, or bear part of the truth, or are they unreal) and may be defined as "reasonable contemplative thinking that focuses on what the individual believes or performs." It is an examination and evaluation of the solutions offered in order to make a judgment about the value of the thing
Pick the list with correct order
"Phylum Class,Order Species"
2
"Kingdom, Class Phylum, Genus"
"Class, Order, Family, Genus"
4
"Class, Family,Order, Genus"
Ribosomes and several types of RNA assemble proteins
True
False
Answer:
False
Explanation:
Answer:
the answer is true
Explanation:
they use amino acids to help with the RNA and ribosome protein forming process
2. How did the mass contamination affect wildlife in the area?
Answer:
Hope this can help
Explanation:
The number of wild animals living on Earth is on track to decline by two-thirds by 2020, according to WWF's Living Planet report, which indicates that the partial extinction of species is destroying the biological sustenance on which the planet depends. humanity. This report, the most comprehensive to date, indicates that animal populations plummeted by 58% between 1970 and 2012 and everything indicates that this loss may reach 67% in 2020.
(this is the translation of the answer above)
The number of wild animals living on Earth is on track to decline by two-thirds by 2020, according to WWF's Living Planet report, which indicates that the partial extinction of species is destroying the biological sustenance on which the planet depends.
What does this report indicates?This report, the most comprehensive to date, indicates that animal populations plummeted by 58% between 1970 and 2012 and everything indicates that this loss may reach 67% in 2020.
Many villages also grow into urban/semi urban areas. This is a sign of economic growth but with the cost of environmental damage. This damages 3 things - air, water, and land. Due to urbanization, many roads are constructed. It passes through the natural habitats of other wild animals. These roadways split their habitat, and cause a reduction in their number.
The urban sprawl causes set up many factories, the use of vehicles which does air pollution. People are more prone to use vehicles which are responsible for air pollution.
Therefore, The number of wild animals living on Earth is on track to decline by two-thirds by 2020, according to WWF's Living Planet report, which indicates that the partial extinction of species is destroying the biological sustenance on which the planet depends.
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Study the timeline.
Based on the timeline, about how many years ago could the oldest mammalian organism have lived?
5 million years
200 million years
1.5 billion years
4.5 billion years
BRAINLIEST! Are fish mammals
Answer:
No
Explanation:
Fishes lay eggs and are not warm blooded vertebrates and don't have hair or fur
Answer:
No fish are not mammals.
Explanation:
There are 75 species of dolphins,whales and other creatures living in the ocean. they are the only mammals.
Which is NOT true about ALL stars?
All stars are mostly composed of hydrogen
O All stars spend some of their lives as main sequence stars
All stars produce white dwarfs
All stars become giants when they run out of hydrogen
Answer:
All starts become giants when they run out of hydrogen. this information is false.