Answer:
gain there electrons that they didn't have before
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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In the cell cycle typical cancer cells, mutations have most likely caused
A.uncontrolled growth
B.a halt in cell division
C.a failure in mitosis
D.slower growth
Answer:
This process is akin to searching for the proverbial needle in a haystack, because many of the mutations present in these cells have little to nothing
Explanation:
During mitosis, normal cells undergo checkpoints that monitor the fidelity of the processes that occur during the cell cycle. Uncontrolled cell growth refers to the breakdown of these regulatory checkpoint mechanisms.
In the cell cycle of typical cancer cells, mutations most like cause UNCONTROLLED GROWTH (Option A).Apoptosis refers to the programmed cell death that prevents the uncontrolled growth of cancer cells.In cancer cells, genes that control apoptosis during the cell cycle suffer mutations, thereby leading to uncontrolled cell growth.In conclusion, in the cell cycle of typical cancer cells, mutations most like cause UNCONTROLLED GROWTH (Option A).
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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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Which phrase describes foliated rocks?
DO NOT CHECK ALL THAT APPLY
tend to break in half
grains arranged randomly
tend to split apart along bands
grains arranged in increasing size
Answer:
tend to split apart along bands
Explanation:
Foliated rocks are metamorphic rocks that are formed due to high pressure and heat leads to the layered or banded appearance of the rocks.
Due to the layered or banded appearance of the rocks, foliated rocks tend to split apart along bands that are aligned parallel to the minerals in the rocks. Example of foliated rocks: Slate, that split into thin sheets along bands .
Hence, the correct answer is "tend to split apart along bands ".
Answer:
tend to split apart along bands
Explanation:
Foliated rocks are metamorphic rocks that are formed due to high pressure and heat leads to the layered or banded appearance of the rocks.
Due to the layered or banded appearance of the rocks, foliated rocks tend to split apart along bands that are aligned parallel to the minerals in the rocks. Example of foliated rocks: Slate, that split into thin sheets along bands .
Hence, the correct answer is "tend to split apart along bands ".
hope it helps
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.
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.
what essential elements are found in large molecules
Answer: carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.
Explanation:
Answer:
I'm from Brazil, I will answer in English and Portuguese for you to train
CHONPS (ou apenas CHON) é um acrônimo mnemônico para os seis elementos químicos mais frequentes na composição dos seres vivos (ou os mais essenciais): Carbono (C), Hidrogênio (H), Oxigênio (O), Nitrogênio (N), Fósforo (P) e Enxofre (S). Estão também entre os mais abundantes do planeta.
CHONPS (or just CHON) is a mnemonic acronym for the six most common chemical elements in the composition of living things (or the most essential): Carbon (C), Hydrogen (H), Oxygen (O), Nitrogen (N), Phosphorus (P) and Sulfur (S). They are also among the most abundant on the planet.
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.
Unicellular organisms can be
Prokaryotes
Ameoba
bacteria
all of the above
Answer:
all of the above
Which is an example of science playing a role in developing technology?
A) the use of an electric spark to produce amino acids from gases that are present in Earth's early atmosphere
B) the discovery that Penicillium mold produces a substance that prevents bacterial growth
C) the improvement in lens-grinding technology, which led to the discovery of cells in cork
D) the discovery that microwaves can pop corn, which led to the creation of microwave ovens
Answer:
d
Explanation:
Answer: It's the discovery that microwaves can pop corn, which led to the creation of microwave ovens.
What type of element is Iron
pls hurry
24. If scientists search other planets for possible life, they are likely to focus on the presence of
molecule containing which of the following elements?
A. Iron
B. Carbon
C. Potassium
D. Sodium
app, ck-12 subject, carbohydrates 9th grade. monosaccharides and disaccharides are also referred to as simple ___?___.
Answer:
simple sugars and proteins or lipids
Explanation:
they both have these
Similarities between exponential growth and logistical growth ?
Answer: Exponential population growth: When resources are unlimited, populations exhibit exponential growth, resulting in a J-shaped curve. When resources are limited, populations exhibit logistic growth. In logistic growth, population expansion decreases as resources become scarce.
Explanation:
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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Do flies have white blood cells?
Answer:Sort of
Explanation:
Insects do have blood -- sort of. It's usually called hemolymph (or haemolymph) and is sharply distinguished from human blood and the blood of most animals that you would be likely to have seen by an absence of red blood cells.Oct
Which of the following cells is the most different :
Liver cells
Egg cells
Testicular cells
Uterine cells
How can the study of biology improve human lives? Give two examples.
Answer:
the study of biology can improve someone's but them understanding live the word biology comes with the root word live
Explanation:
During photosynthesis, plants release_____into the air through their leaves.
Answer:
carbon dioxide is the answer
oxygen
Explanation:
because they do and they always have and they do that so we can
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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The attractive force between two bodies of different substances that are
in contact with each other. *
Activation Energy
Enzyme
molecule
Adhesion
what is the pressure that builds up inside of plant cells due to osmosis and the strength of the cell wall called?
Which if the following statements is true regarding scientific hypothesis?
Answer:
A testable hypothesis is valuable, even if evidence shows that it is false
Explanation:
Sorry it took so long hope it helps!!
When magma cools beneath the surface of the earth, it forms
a. granite
b. basalt
c. shale
Answer:
When magma cools beneath the Earth's surface, it forms granite.
Explanation:
Basalt is formed at the surface where magma comes in contact with cool air above the Earth's surface, while shale is formed when mud is compressed.
A ______ would be a short-term energy source. (Please Help!) :)
Answer:
lightbulb?
Explanation:
a lightbulb will run out but can last a while
Read the sentence.
The tracking party followed their prey to the river, but there they lost the trail, even though they had several bloodhounds with them.
What type of sentence is this?
Answer:
Run on sentence
Explanation: Too much commas no periods, Much appreciated if Brainliest thanks
Answer:
D: a compound-complex sentence
Which of the following is true about the action of enzymes? *
the binding of the substrate denatures the enzyme
O substrates bind at a site remote from the active site
the binding of a substrate changes the shape of the active site so the reaction can
occur
enzymes increase the energy required to initiate the reaction
Answer:
enzymes increase the energy required to initiate the reaction
Explanation:
is osmosis passive or active transport
Answer:
Passive Transport
Explanation:
Osmosis does not require ATP so it is a passive transport. Osmosis is a form of passive transport. Water molecules are small enough to move freely across the plasma membrane without the use of ATP
message me btw : )
Answer: Osmosis is passive transport.
Explanation: Water moves from areas where solutes are less concentrated to areas where they are more concentrated.
What conclusions can be drawn about the existence of carbon-12, carbon-13, and carbon-14? A) These are forms of carbon and they accommodate 6 neutrons and 6 electrons but each contains a difference number of protons - 6, 7, and 8 respectively. B) These are configurations of carbon and they have 6 protons and 6 neutrons but each contains a difference number of electrons - 8, 7, and 6 respectively. Eliminate C) These are isotopes of carbon and they all contain 6 protons and 6 electrons but each contains a difference number of neutrons - 6, 7, and 8 respectively. D) These are allotropes of carbon and they consist of 6 protons and 6 electrons but each contains a difference number of neutrons - 8, 7, and 6 respectively.
Answer:
C.
Explanation:
All these carbon atoms are isotopes: they have the same amount of protons (in this case, 6 because carbon always has 6 protons) and the same amount of electrons (6 because the carbons given have a neutral charge).
Therefore, the only thing we are changing is the atomic mass and the amount of neutrons present in each isotope.
In Carbon-12, there are 6 protons, 6 neutrons, and 6 electrons.
In Carbon-13, there are 6 protons, 7 neutrons, and 6 electrons.
In Carbon-14, there are 6 protons, 8 neutrons, and 6 electrons.
Answer:
These are isotopes of carbon they both contain 6protons and 6electrons but each contains a diff about of neutrons 6,7 and 8 respectively
What do you think of when you hear the word science
Answer:
Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.
Explanation: