Answer:
it was B!!!
Explanation:
yo wassup yostos from Mrs Hees 4th period!!
ten effects of unsuitable work place environment to human health
A population ecologist wished to determine the size of a population of white-footed deer mice, Peromyscus leucopus, in a 1-hectare field. Her first trapping yielded 80 mice, all of which were marked with a dab of purple hair dye on the back of the neck. Two weeks later, the trapping was repeated. This time 75 mice were trapped, out of which 48 of the mice were marked. Using the formula below, what is the population of mice in the field
Answer: 125
Explanation:
Population size is the number of individuals in a population. First, the trapping yielded 80 mice that were marked. Two weeks later, 75 mice were trapped and 48 of them had the mark.
The formula used for this question is:
N=mn/x
N= population size in the 1-hectare field. m= number of individuals marked and released the first time. n= number of individuals captured the second time. x= number of marked individuals that are recaptured.
The experiment consist on a randome collect sample of individuals which are then marked and released. Next, take a sample again.
So, replacing the values we get:
N=(80)(75)/48
N=125 individuals.
What is the ideal location for a radioactive waste storage facility?
A. in an area with a lot of people
B. far away from ground water
C. in an area that has a lot of earthquakes
D. in an area that already has a lot of background radiation
Answer:
B
Explanation:
It is really bad if the radio active waste spilled and got in the water or get on people. Putting it where other backround radiations are will worsen the area and may affect the waste. the earthquake area would put the facility indanger of coming down and spilling the waste all around it.
Which of the atomic models represents the most reactive element?
A. Argon, because it has three energy levels with eight electrons in the third level.
B. Lithium, because it has two energy levels with one electron in the second level.
C. Aluminum, because it has five energy levels with two electrons in the third level.
D. Carbon, because it has two energy levels with four electrons in the second level.
The most reactive element is represented by the atomic model for lithium, which consists of two energy levels with an electron in the second level. So, the correct option is B.
What is Reactive element?A reactive element is one that forms chemical bonds with other elements to obtain a stable electron configuration. Reactive elements are chemically unstable. The amount of valence electrons in an element's highest energy level determines how reactive it is.
The element with the fewest number of energy levels and most reactive valence electrons in the above example is lithium, which has only two energy levels and one electron in the second level. Lithium in this state has one valence electron, which makes it very reactive and predisposed to form bonds with other elements filling its outermost shell.
Therefore, the correct option is B.
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Please help me I’m using all my points for these :(
NO BOTS OR TROLLS!!
Tysm
Answer:
Electrical
Explanation:
I hope y’all are staying safe!
Pls list in the comments if wrong.
I’m always willing to try the best!
20 points real answers please and thank you
The picture below shows a satellite image of a sea. (1 point)
Which of these statements is correct about the sea at Location A and Location B?
The waves at Location A are abnormally low.
The waves at Location B are abnormally low.
The waves at Location A move at high speed.
The waves at Location B move at high speed.
Answer:
Its C hope this helps! if its wrong let me know
The whole world is affected by pandemic.what could be the reasons for its spread and what can we do to prevent it.
Answer:
Reasons for the spreading of this illness is due to the fact that people are not wearing their masks, not covering their coughs and sneezing which spreads germs, and during this time coming in close contact with others. To help prevent the spread would be for us to wear masks because not only does it protect us it helps protects people from our germs. Washing hands and covering coughs and sneezes can also help tremendously as well as keeping distance between others. The sooner we all practices these basic things the quicker all of us can get back to our normal lives because almost we know almost everyone misses the normal.
I need help with this pls is for today!!!!
DONT PUT THE LINK THAT EVERYONE IS PUTTING PLEASE
explain how at least three pieces of evidence support the theory of evolution
Answer:
There are five lines of evidence that support evolution.
Explanation:
Molecular biology ,biogeography, comparative anatomy, the fossil record, and comparative embryology. Choose any three of these :)
Explain why fossils that form in sediments usually only include the hard parts of animals. True or False
Answer:
True
Explanation:
the way you worded the question was weird
Can someone give me 4 causes and effects in how organisms and humans affect the enviroment?
Aerobic respiration requires this molecule, but Lactic Acid fermentation does not.
Carbon Dioxide
Glucose
Ethanol
Oxygen
Aerobic respiration requires Oxygen molecule, but Lactic Acid fermentation does not.
Aerobic respiration takes place in the presence of Oxygen, but Lactic Acid formation and fermentation doesn't require Oxygen.
Recently two follow-up studies of mortality among licensed pesticide applicators were published in the occupational health literature. One study from Florida found an overall standardized mortality ratio (SMR) of 1.80 and excess deaths due to leukemia, cancers of the brain, and lung cancer. A second study, based in Iowa, found an overall SMR of 1.20 and an elevated SMR for lung cancer only. The mortality statistics for the respective states were used for comparison purposes.
A. Is there reason for concern? Why or why not?
B. Why do you think that there was an elevated SMR for only one specific cause of death in Iowa? Knowing that applicators in both states use similar chemicals in their work, do you think that pesticide workers in Florida should be concerned that they may be at higher risk than their colleagues in Iowa?
Answer: b
Explanation:
I took the test
I neeed please ASAP
Answer:
Option C
Explanation:
A vaccine is usually given to boost up the immune system by making them familiar with the virus
Answer:
option C
The immune system has been exposed to the polio virus so that the body responds rapidly to infections
What changes are caused by the hydrogenation of fatty acids?
A. The smell of fat changes
B. The number of calories per gram of fat is reduced
C. The fat becomes more invisible in foods
D. Liquid oils are converted to solid fats
Question 12 (2 points)
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Organisms in an ecosystem can be classified as producers or consumers. The
producers provide food for the consumers. An organism that consumes both
producers and other consumers is called a ...
Omnivore
Decomposer
Carnivore
Herbivore
An organism that consumes both producers and other consumers is known as omnivore
Omnivorous animalsOmnivorous animals, also known as omnivores, are animals that eat green plants as well as meats from other animals.
Omnivores are usually called secondary or tertiary consumers in the ecosystem.
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Questions
1 the blank is all of the living organism for earth and places they live
Answer:
The biosphere is all of the living organisms on Earth and the places they live.Explanation:
What is the number of individuals in an area of a specific size?
Answer:
Do you mean the definition?
I think it is "population density". Population density is the number of individuals per unit area or volume.
Explanation:
Although strychnine is colorless, it has a very strong bitter taste.
A.True
B.False
Which of the following releases energy when the bond between the second and
third phosphate is broken
ASP
APP
ADP
ATP
ATP releases energy when the bond between the second andthird phosphate is broken.
the energy is stored between the bonds of ATP molecule, and breaking of bonds releases that energy.
Create a mutant fly with any number of variations and mate it with a
wild-type fly. How many offspring are wild-type? What are the
phenotypes of the flies that are not wild-type?
Untamed type, a person who exhibits the typical phenotype, which is the phenotype typically present in a population of living things. Mutant, a person who deviates from the typical phenotype in some way.
What are the phenotypes of the flies that are not wild-type?The phenotypic of a species' normal form as it appears in nature is known as the wild type (WT). The wild type was initially thought to result from the “regular” standard allele at a location, as opposed to a non-standard, “mutant” allele.
Type wild, an individual with the typical phenotype, or the phenotype typically present in a population of living things in the wild. Mutant, a person, has a phenotype that is different from the typical phenotype.
Therefore, to characterize a gene in its natural, unaltered (unchanged), non-mutated form. Some cancer types have been linked to mutated (changed) versions of specific genes.
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Groundwater is taken up through a tree's roots so the tree can grow. Which sequence correctly
shows how the water the plant is using will cycle though the water cycle and become groundwater
again?
respiration → condensation → precipitation → groundwater
condensation → precipitation → groundwater → transpiration
transpiration condensation → precipitation → groundwater
condensation → precipitation → groundwater → respiration
Answer:
condensation → precipitation → groundwater → transpiration
Explanation:
What is the general formula for a monosaccharide (a type of carbohydrate)?
Select one:
a. C6H12O6
b. CH2O
c. (CH2O)3
d. (CH2O)n
difference between blood and lymph
Explanation:
Hope this is helpful
[tex]\LARGE{\color{pink}{\textsf{\textbf{⠀❥คɴᎦᴡєя⠀}}}} [/tex]
Blood has RBC's, WBC's, platelets and a fluid called plasma. Whereas lymph has WBC's and watery fluid. They both have immune and also circulatory functions in them. One of the major differences between them is that blood flows through blood vessels and lymph through lymphatic vessels.
_________________
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I need help with this question (no links please)
Answer:
sorry this video is not simple girl and I will be in the future of our country is facing the same to you so much for your time and consideration and I will be
Which animals typically have a reproductive group and a nonreproductive group within their social structure?
bees
lions
moose
zebras
Answer:
Bees
Explanation:
In the beehive there are bees like worker and drone bees that do not reproduce. Their job is to make honey and repair the hive.
Answer:
it's A
Explanation:
Help me please :)
Answer choices:
1-Valine and aspartic acid
2-Serine and glutamic acid
3-Isoleucine and histidine
4-Methionine and glutamine
Answer: 4-Methionine and glutamine.
Explanation:
When organisms become more similar by living in the same environment
Answer:
Convergent evolution is when two (or more) distantly related species independently evolve the same trait or gain a similar function. In math terms, convergence is when two things get really close to each other. For example, bats, birds, and insects are very distantly related but all have evolved the ability to fly.
Explanation:
Hope this helps
As Earth's surface cooled and cyanobacteria evolved, which of the following gases was released
into the atmosphere?
Which of these contributors will transfer the greatest amount of carbon into the atmosphere while reabsorbing the least amount of carbon from the atmosphere?
A. the ocean
B. changing land use
C. vegetation and soil
D. fossil fuels and industry