a. Describe the effect of standard of living on tooth decay in town A.
b. Suggest reasons why a low standard of living may have the effect you describe in your answer to a.
c. Describe the effect of adding fluoride to drinking water that does not naturally contain fluoride.
d. Suggest reasons for the differences in the results for town B and town C.
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Answer:
Explanation:
Hi
Related Questions
Velocity is the speed and direction of an object. (4 points)
False
True
Answers
Answer:
True
hope it helps and your day will be full of happiness
can someone please help me
Answers
Answer:
1 and 3
Explanation:
1 is a drug
3 is a formula
how does gene regulation relate to the continuity of life
Answers
ANSWER FAST PLEASE!
1. The function of the mitochondria in cell is to...
A) contain all the information the cell needs to function
B) provide movement
C) turn food into an energy the cell can use
D) make energy rich food from sunlight
2. What is the main component of a plant cell wall?
A) galactose
B) glucose
C) cellulose
D) sunrise
3. What are the small structures found inside a cell that have specific functions that halo the cell survive called ?
A) homeostasis
B) organelles
C) tissues
D) organs
Answers
Answer:
1. C -make food into energy
2. C - cellulose
3. B - organelles
Two Aa parents have children with Aa genotype and one child with the aa genotype. If these parents have a fourth child, what is the probability that the fourth child will have the AA genotype
Answers
Answer:
25%
it is like flipping a coin
regardless of how many times it comes out heads
tails is still 50%
the punnett square ouitside is Aa on top and bottom
inside is
AA Aa
Aa aa
Explanation:
Which set of alleles is purebred recessive?
A) aa
B) Aa
C) AA
Answers
Answer:
aa
Explanation:
the answer is pretty obvious it would be a a because a dominant allele would be to Capitol a and a lower capital a and one capital a would be a mix and a purebred would be to lowercase A's
Where is the ocean water the warmest at the equator?
A. In the western Pacific Ocean
B. in the eastern Atlantic Ocean
C. in the eastern Pacific Ocean
D. in the western Indian Ocean
E. in the western Atlantic Ocean
Answers
Answer:
★ C. in the eastern Pacific Ocean
Explanation:
Hope you have a great day :)
Explain at least three ways in which a mutation in an individual's DNA could occur, and describe at least 2 effects a mutation could have on an individual's traits.
Answers
What pea color will the offspring have?
A) 2 green, 2 yellow
B)1 green, 3 yellow
C) all yellow
D)all green
Answers
Answer:
C.) all yellow
Explanation:
because it's the dominant trait to be inherited
Based on the latitude, which hemisphere is the United States in?
Answers
Answer:
Northern
Explanation:
Answer: should be northern ^^
which is stage 4? Please do not guess!
Answers
Answer:
im pretty sure its A. since it shows the sperm goin into the egg forming a thing
In order to determine the expected average offspring length, what do you multiply with your heritability
Answers
Complete question:
In a population of toads, the average body length is 30mm. Body length is variable and the narrow sense heritability for body length is 0.1 for this population. You cross a male of 20mm with a female of 22mm. In order to determine the expected average offspring length, what do you multiply with your heritability?
30mm 9mm 0.1 8mm -9mm -0,5Answer:
The correct option is -9mm
In order to know the expected average offspring length, OABL, we need to multiply the selection differential, SD ( -9mm) with narrow-sense heritability, h² (0.1).
Explanation:
Available data:
the average body length, ABL, is 30mmthe narrow-sense heritability, h², for body length is 0.1male of 20mmfemale of 22mmTo answer this question, we need to remember how can we calculate the selection differential and the heritability in the narrow sense.
We can get the selection differential, SD, by getting the difference between the mean value of a population length, ABL, and the mean value of the parents of the next generation, PABL. So, in this example the selection differential is:SD = (20mm + 22mm)/2 - 30mm
SD = 21 mm - 30mm
SD = - 9mm
The heritability in the narrow sense, h², for body length in the population ish² = body lengths of the offspring average/selection differential
But we already know the value of h². And we want to know the body length of the offspring. So we just need to clear the following equation.
OABL = ABDL + h² ( PABL - ABL)
where,
offspring average body lengths = OABLpopulation average body length = ABL = 30mmparents average body length = PABL = 22mmSelection diferential = SD = -9mmnarrow sense heritability = h² = 0.1OABL = ABDL + h² ( PABL - ABL)
OABL = ABDL + h² ( SD)
OABL = 30mm + 0.1 ( -9mm)
OABL = 30mm + (-0.9 mm)
OABL = 21 mm
In order to know the expected average offspring length, OABL, we need to multiply the selection differential, SD ( -9mm) with narrow-sense heritability, h² (0.1).
What determines the type of animals that live in a biome? *
1 Soil and Rocks
2 The plant life
3 Latitude and altitude
4 None of these
Answers
Answer:
Plant Life
Explanation:
Due to the fact that prey outnumbers predators in all biomes, plant life is critical. Most prey are herbivores and this would contribute to the essential need for plant life. When it comes to predators, who are almost all carnivores, they may not need the plant life for food, but instead for shelter, hiding, and raising offspring.
Hope this helps :)
In what type of situations would random sampling (last lab) be useful?
Answers
In some types of research the target population might be as broad as all humans, but in other types of research the target population might be a smaller group such as teenagers, pre-school children or people who misuse drugs.
It is more or less impossible to study every single person in a target population so psychologists select a sample or sub-group of the population that is likely to be representative of the target population we are interested in.
This is important because we want to generalize from the sample to target population. The more representative the sample, the more confident the researcher can be that the results can be generalized to the target population.
One of the problems that can occur when selecting a sample from a target population is sampling bias. Sampling bias refers to situations where the sample does not reflect the characteristics of the target population.
A lion attacking and eating an antelope is an example of:
- mutualism
-predation
-parasitism
-competition
Answers
easiest way to memorize the structures of viruses and bacteria
Answers
Answer:
I recommend trying to photo memory it, if not repeat it in your head to the point where its the only thing you're thinking about.
Explanation:
It works for me :))
Answer: Quizlet
Explanation: Helps me study when taking tests, maybe works for you too.
What are the limitations on natural selection?
Answers
Answer:
Limits to variation The most obvious limit to natural selection is that suitable variation may not be available. This may be because certain phenotypes cannot be built, being ruled out either by physical law or by the properties of biological materials.
I hope it's helpful!
Which of the following would be a good hypothesis for this experiment? If the surface of the floor material is changed, then the ball will rebound to a different height. Dropping the ball from a height of 100 centimeters will cause a greater rebound than dropping it from 80 centimeters. If the distance the ball is dropped increases, then the ball will rebound to a greater height.
Answers
100 points! The diagram shows steps and structures involved in protein production.
The arrow labeled X is pointing to A.a protein B.a ribosome C.DNA D.RNA
Answers
Answer:
Ribosomes
Answer: The arrow labelled X is ribosome. Explanation: Ribosomes can be described as structures which are the protein manufacturing unit.
What is number 30 please
Answers
Answer:
The answer is D
Explanation:
hope this helps
difference between the sea anemone and hydra
Answers
Answer:
Hydras live in fresh water environments, while sea anemones live in MARINE environments! Hydra, although primarily sessile (sedentary), may move up to several inches in a day.
during the nitrogen cycle?
ammonia is turned into sugar?
atmospheric nitrogen is converted to fixed nitrogen?
nitrogen is converted to oxygen and sugar?
oxygen and sugar are converted to nitrogen?
Answers
Answer:
none of the above
Explanation:
A police officer pulls over a driver for speeding. She notices that the driver seems very jumpy and is breathing heavily as though his heart was racing. She suspects that the driver may be on drugs. Explain what category of drugs this driver likely took. Justify your answer.
Answers
Answer:
He would be like moving weirdly and acting not how he usually does.
Explanation:
yah
Which best desctibes the fossil record?
Answers
Answer:
The perserved remains of an organism.
give two reasons why it is important to conserve south Africa's plants and animals
Answers
Answer:
it creates opportunities and benefits for local communitys and it can maintain the health if an ecosystem. I think those are the two I may be wrong sorry if I am
Bumper cars are an example of Newton's third law of motion.
True
False
Answers
Answer:
True!
Explanation:
Answer:
True
Explanation:
It's an object that is exerting a force onto another object
compare and contrast protists and parasites
Answers
When there are enough resources for every living thing in an ecosystem, the ecosystem is a. divided. c. balanced. b. equipped. d. abiotic.
Answers
Answer:
When there are enough resources for every living thing in an ecosystem, the ecosystem is. c. balanced
Explanation:
When there are enough resources for every living thing in an ecosystem, the ecosystem is: BALANCED.
what is the breakdown of glucose, anabolic or catabolic reaction called
Answers
Answer:
The correct answer is - catabolic reaction.
Explanation:
The breakdown of glucose is the catabolic reaction as it releases the energy in the process which means the breakdown of large molecules into its components is known as a catabolic reaction.
Catabolic reactions are generally downhill reactions as they release energy and result in the formation of the ATPs in this process. Anabolic respiration is a reaction that involves assembling of a small compound to form a new large molecule.
What Gegymnosperm is known as a living fossil