I don’t understand it

I Dont Understand It

Answers

Answer 1
So I believe these are the questions to go with the statement based on the info given to make a question (hypothesis) , I believe it’s “A” because based on the statement it give details about the one of them being able to drink water that contains fluoride salts and the other doesn’t drink water with fluoride salt . And we don’t know where they live , or even who drinks the fluoride salts or no so “A” is a appropriate question to give . And the numerical data part can also include the people who lives in their neighborhoods .

Hope this helps☺️

Related Questions


Do you think the amount of foam in the glasses will differ?

Answers

The amount of foam in the glasses will differ. In terms of increasing foam rise, Glass A will be the least, then E, D, B, and C having the most foam rise. ... This is being tested from the carbon dioxide output of the glass which is measured from the height of the foam.

Answer:

these are all the answers to the entire course activity

Please mark as brainliest if this helps

Explanation:

In the year 2000, more than 225 million acres of forests were burned throughout the
world. A forest fire can have a dramatic effect on the plants and animals that live in a
forest.
• Describe one negative and one positive effect of a forest fire.
One way of controlling how severe a forest fire becomes is to deliberately set small
fires in what is known as a "controlled burn."
• Describe two ways that a controlled burn can benefit a forest.
Name the type of ecological succession that would occur after after a forest fire.

Answers

Answer:

In 1960, the U.S. Forest Service started keeping detailed records of damage caused by wildfires. ... Between 2000 and 2013, nearly 161 million acres were consumed by wildfires -- more in 13 years than in the previous 40 years, combined. ... they would have been had fuel sources been able to burn off naturally over time.

Missing: 225 ‎| Must include: 225

Explanation:

Question 10 of 10
Why do fungi need to live in moist areas?
A. Their large surface areas make them dry out easily.
B. They can only reproduce sexually.
C. They are unable to photosynthesize.
D. Their filaments make it difficult to absorb nutrients.

Answers

Answer:

A. Their large surface areas make them dry out easily.

Explanation:

(A.P.E.X)


2. A hormone that is produced by the endocrine system targets specific
cells ir many different parts of the body. Which of the following
mechanisms explains the best way for the hormone to efficiently reach all
of its target cells?

The hormone is released into the bloodstream where it can be carried throughout the
body to the target cells with specific receptors

The hormone reacts with neurons close by that signal the target cells throughout the
body

The hormone is transported by local regulation to cells close by that trigger the target
cells

The hormones moves throughout all the cells until it reaches the cells with the
specific receptors for the signal

Hurry please I’m taking a exam

Answers

Answer:

The correct answer is the first option:-

The hormone is released into the bloodstream where it can be carried throughout the  body to the target cells with specific receptors.

I learnt in biology that hormones are transported through blood so they reach the specific receptors and act upon them so am sure this is the answer!.

The other options aren't right for the question.

Water is carried from the roots upward to every part of a vascular plant by
cells walls.
O cuticle.
phloem.
xylem
Use the concept map below to answer the following question.

Answers

The answer is cell walls

You want to determine if the source of fecal contamination is from dairy cows or wild deer. Which antibiotic would give you the most clear results and why

Answers

Answer:

Piperacillin and tazobactam, imipenem and cilastatin, or meropenem may be used.

Explanation:

Antibiotics such as piperacillin and tazobactam, imipenem and cilastatin, or meropenem can be used for the treatment of Fecal coliform bacteria that causes fecal contamination. There are some other methods also used to avoid Fecal contamination i.e. boiling of water, treating water with chlorine, or UV disinfection are the methods that are used to reduce Fecal coliform bacterial infection.

How much has the greenhouse gas carbon dioxide increased in the air just in the last few years? ITS DUE IN A FEW HOURS PLEASE HELP!

Answers

Answer:

approximately 2.3 parts per million (ppm) per year

Explanation:

In 2019, the global amount of atmospheric carbon dioxide (CO2) has been estimated at approximately 410 parts per million (ppm). These levels are higher than at any time in the last 800,000 years, and it has been estimated that in 2025 the CO2 levels will be higher than at any time in the last 3.3 million years. In 2018, there has been an increase of approx. 2.5 ppm, the same increase observed between 2017 and 2018. Moreover, the average increase of the CO2 levels in the atmosphere between 2009 and 2018 was 2.3 ppm each year.

diarrhoea definition​

Answers

Answer:

A condition in which feces are discharged from the bowels frequently and in a liquid form.

Explanation:

Hope this helps and have a wonderful day!!!

Are the energy resources used at school renewable or nonrenewable

Answers

Answer:

Resources are characterized as renewable or nonrenewable; a renewable resource can replenish itself at the rate it is used, while a nonrenewable resource has a limited supply. Renewable resources include timber, wind, and solar while nonrenewable resources include coal and natural gas.

Explanation:

Which of the following is a density-dependent factor?
(a)habitat size
(b)volcanic eruptions
(c)cold weather
(d)food availability

Answers

Answer:

A

Explanation:

Answer: (D) food availability

Explanation: its the only one that is density dependent, all the others are density independent.

state how the protein and energy requirements of the following will differ from those of a 16 year old female who does not take much exercise (1) An elderly person (2) a 2 year old child (3) a pregnant women (4) a male athlete​

Answers

Answer:

Elderly people need a lot of protein but less energy and a pregnant woman need both nutrition enough to cell function and tissue formation of the embryo and more equal does the the 2 year old baby need both the nutrition.

What is the term used for genetic mutations that may result in neutral or even negative outcomes?(1 point)

A) genetic drift

B) natural selection

C) artificial selection

D) genetic modification

Answers

Answer:

Genetic Drift

Explanation:

Evolutionary change can and does occur without natural selection. This usually occurs as a result of genetic drift: genetic mutations that may result in neutral or even negative outcomes.

The term 'GENETIC DRIFT' is used for genetic mutations that may result in neutral or even negative outcomes (Option A).

Genetic drift refers to random fluctuations in the frequency of a given gene variant (i.e. an allele) and different genes in the individuals that form a population.

Genetic drift may occur on neutral or negative alleles carried out by the individuals of a population.

These random fluctuations cause changes in the allele frequencies, which are fixed when they reach a frequency equal to one (1).

In conclusion, the term 'GENETIC DRIFT' is used for genetic mutations that may result in neutral or even negative outcomes (Option A).

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How did a famous event change the course of the American Revolutionary War? in essay form pls

Answers

Answer:

The American Revolution was a political battle that took place between 1765 and 1783 during which colonists in the Thirteen American Colonies rejected the British monarchy and aristocracy, overthrew the authority of Great Britain, and founded the United States of America. See the fact file below for more information and American Revolution facts.

-The American Revolution, also known as the Revolutionary War, began in 1775.

-British soldiers and American patriots started the war with battles at Lexington and Concord, Massachusetts.Colonists in America wanted independence from England.

-The British government attempted to pass some laws, enforce several taxes, and increase more control over the colonies.

-The colonies strongly objected to these laws and taxes.

-They wanted England to have no control over them.

-For ten years before the war actually started, there was a lot of tension between England and the colonies.

-The colonies had no central government at the beginning of the war, so delegates from all the colonies were sent to form the first Continental Congress.

-George Washington, a former military officer and wealthy Virginian, was appointed Commander in Chief of the Continental Army.

-Members of the Continental Congress wrote a letter to King George of England outlining their complaints and declaring their independence from England.

-On July 4, 1776, the Continental Congress adopted the Declaration of Independence, in which the colonies declared their independence from England.

-The war ended in 1783, and the United States of America was born.

Explanation:

Which of the following are not found in Cyanobacteria?

Answers

Answer:

Like all other prokaryotes, cyanobacteria lack a membrane-bound nucleus, mitochondria, Golgi apparatus, chloroplasts, and endoplasmic reticulum. All of the functions carried out in eukaryotes by these membrane-bound organelles are carried out in prokaryotes by the bacterial cell membrane.

2. Which part of a eukaryotic cell contains the instructions on how to recombine the molecules in nutrients into new molecules that the cell can use?

A. DNA in the nucleus
B. Chlorophyll in chloroplasts
C. Water in vacuoles
D. Digestive chemicals in lysosomes

Answers

A. DNA in the nucleus.
Our nucleus in each cell encodes messages for other organelles to acquire. The organelles use these messages to sustain everyday activities.
Chloroplasts function to convert solar energy into energy the cell can use in a plant cell.
Vacuoles store water, molecules, waste and other substances.

How much is )377373737373837828827383783737737+73737737374747774747478382828828287739278

Answers

Answer:

7.3737738e+40

Explanation:

pls foll ow me

i will foll ow back...

Suppose an explorer discovered a unique new species of plant and collected a sample for analysis by a geneticist. The geneticist then isolated chromatin from the plant sample and examined the chromatin using electron microscopy. The chromatin observed was organized in a way that is similar to beads on a string A small amount of nuclease was then added, which was observed to cleave the string into individual beads that each contained 280 bp of DNA.
Histone H1 H2A H2B H3 H4 H7 (new histone)
Percentage 12.5% 25% 25% 0% 26%
After thorough digestion with more nuclease, only a 120 bp fragment of DNA remained attached to a core of histone eins. Analysis of the histone core revealed the data dicated in the table to the right.
Using the data provided, determine the conclusions that the geneticist could make about the likely structure of the nucleosome in the chromatin of this new plant species
A. The nucleosome core contains a heterodimer of the histones H7 and H1
B. The nucleosome core contains two each of histones H2A, H2B, and H4
C. The nucleosome core contains a homodimer of the histones H2A, H2B, and H4
D. The nucleosome core contains one each of histones H1 and H7
E. The nucleosome core histone H7 replaces the standard histone H3

Answers

my brain can't process this lol

How to Define life ?​

Answers

The condition that distinguishes animals and plants from inorganic matter, including the capacity for growth, reproduction, functional activity, and continual change preceding death.

This is the definition of life.

Answer:

Life is defined as any system capable of performing functions such as eating, metabolizing, excreting, breathing, moving, growing, reproducing, and responding to external stimuli.

Which animal in a pond food chain would be on the same trophic level as a snake in a grassland ecosystem?
(A) Algae
(B) mosquito larva
(C) fish
(D) racoon

Answers

I think a raccoon because both are predators

In a pond food chain ecosystem, a fish feed on mosquito, a producer. The fish may get eaten by a racoon, which in turn is consumed by a snake. In a pond, algae is autotroph. So the correct option is D (racoon).

What is trophic level in ecosystem?

Trophic level is defined as the ranking of an organism in the food chain and which differ from a value of 1 for primary producers to 5 for marine  humans or mammals.

Racoon is mammal and omnivorous whereas the snake is carnivorous animal.  In a pond ecosystems, the biomass pyramid is inverted.

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I need help please help

Answers

Answer:

its d cause

Explanation:

Correlative Conjunctions are pairs of words used to connect two parts of a sentence with equal value.

A. The capture/mark recapture method was used to give an accurate
estimate of the rhinoceros beetle population in the Western province. Traps
were set up and captured beetles were painted light brown as oppose to red an
yellow. All captured-recaptured were counted and recorded.
Total count
in
Total marked
Total counts
in
Total marked
40
40
15
35
Use the Lincoln Index to calculate the total beetle population?​

Answers

Do not click in the link above above , he is a scammer and trying to fool us. Report any accounts you see saying that and using that link.

Mutations that change the bases in a base pair are ____________.

Answers

Answer:

A point mutation is when a single base pair is altered. Point mutations can have one of three effects. First, the base substitution can be a silent mutation where the altered codon corresponds to the same amino acid.

Explanation:

mark brainliest

According to the passage, which of the following topics of study was the most crucial to his final analysis?
The study of statistics and probabilities

The study of plant varieties

The study of agriculture

His study of the experimental method

Answers

Answer: The study of plant varieties.

Explanation:

This question relates to the studies that Gregor Mendel, founder of modern genetics, performed at the University of Vienna.

Experimenting on pea plants, Gregor Mendel was able to establish a lot of the rules of heredity that we know today even though his research was not fully appreciated or understood during his own life.

He credited the study of plant varieties to have been most crucial to his final analysis because farmers had been crossbreeding varieties for millennia to bring about better traits in plants.

why is night blindness regarded as a non infectious disease​

Answers

Answer:

Explanation:

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____________ are made of a series of paired statements that describe physical characteristics of different organisms.

Answers

Answer:

taxonomic key

this is A series of paired statements that describe the physical characteristics of differnent organisms.

Answer:

taxonomic key

Explanation:

A series of paired statements that describe the physical characteristics of differnent organisms.

the measurement of the matter in the universe is called

Answers

Answer: mass

Explanation:

Hello who’s good at biology guys I need someone to help me with the test

Answers

I Dont Even Know If Am Good In Biology Or Not

But Some Chums Might Give You A Hand

PLZ HELLLP TONS OF POINTS (this is on a FINAL)
two students are comparing scientific experiments to investigations. They came up with the following ideas.

Student A: Testing plant growth in different types of soils
Student B: Comparing the water level in a lake during different times of the year

Which student gave an example of a scientific experiment?

Student A because it requires experimental and control groups
Student B because it requires a hypothesis
Student A because it is preferably done in natural settings
Student B because it is preferably done across a long period of time

Answers

Answer:A

Explanation:

Which statement describes earthquakes which team explain one way that minerals form

Answers

Earthquakes are natural phenomena characterized by the sudden release of energy in the Earth's crust, resulting in seismic waves that can cause the ground to shake.

During an earthquake, the rocks along the fault experience immense pressure and deformation.

This intense pressure can cause minerals within the rocks to undergo various processes that contribute to their formation.

One way minerals can form as a result of earthquakes is through metamorphism.

Metamorphism is the process by which existing minerals within rocks undergo changes in response to high temperatures, pressures, and deformation.

During an earthquake, the rocks near the fault zone are subjected to extreme pressure and temperature conditions.

The intense stress causes the minerals to recrystallize, rearrange their atomic structures, and form new minerals.

This process is known as dynamic metamorphism or cataclasis.

The newly formed minerals in fault zones can include varieties of quartz, feldspar, mica, and other minerals commonly found in metamorphic rocks.

The specific minerals that form depend on the composition of the original rocks and the conditions present during the earthquake.

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hy please make some questions from this passage please i want to ask my students thank you​

Answers

Explanation:

1) Write the balanced chemical equation of photosynthesis.

2) What is the role of chlorophyll in the process of photosynthesis?

3) What happens to the light energy that is absorbed by the chlorophyll?

Other Questions
Write a 250 word Summary about all of the following below:.Networking Capability, New Venture Performance andEntrepreneurial Rent Drag each tile to the correct box.Match the locations in Oklahoma with their associated facilities or functions during World War II.Camp GruberTinker Fieldaircraft maintenance depotpilot training schoolinfantry training campResetVance Air Force BaseNext most young people prefer that their ____ be the primary source of sex information. what would you do if you noticed an employee treating another employee in a discriminatory manner? At the beginning of the year, Tyagi Manufacturing bought machinery, shelving, and a forklift. The machinery initially cost $31,200 but had to be overhauled (at a cost of $2,320) before it could be installed (at a cost of $1,160) and finally put into use. The machinery's total life was estimated as 40,000 hours, with an estimated residual value of $1,000. The machinery was actually used 5,000 hours in year 1 and 7,000 hours in year 2. Repair costs were $490 in each year. The shelving cost $10,000 and was expected to last 5 years, with a residual value of $740. The forklift cost $17100 and was expected to last six years, with a residual value of $2,280. 3. Prepare the journal entry to record year 2 depreciation expense for the machinery. (Do not round intermediate calculations. If no entry is required for a transaction/event, select "No Journal Entry Required" in the first account field. Mr. Hemsworth is the CFO of Thunder Inc. and he is responsible for managing transaction exposure. The company will need to pay 335,000 Australian dollars to a partner for licensing fees in 30 days. He came up with the probability of the exchange rates of the US dollar per Australian dollar (see the table below). If an Australian dollar sells for 1.9275 U.S. dollars and the 30 days forward rate is USD 2.1231 per AUD, what is the probability of the forward hedging to underperform the unhedged positions? Possible Spot Rate in 30 Days Probability 1.8284 24% 2.0558 16% 2.2904 24% 2.3913 36% a. 40% b. 60% Ec64% d. 36% Raising the required reserved ratio __ the simple deposit multiplier, which will __ the economies money supply? simplify using FOIL method (2x+3)(2x-3) With respect to their nutrition, members of the plant kingdom are usually classified as _________ Which financial statements reflect the costs of production, explain? In cell O16 use the SUMIFfunction to determine the Total Gross Monthly Salary for employeesfrom Department A? Format answer as commastyle, 0 decimal.What formula should I use?. Home Insert B5 1 2 7 8 9 10 11 12 13 14 15 16 17 18 19 20 11 12 24 25 26 27 28 29 30 31 33 32 33 34 25 36 17 13 19 40 Paste 41 Excel File Edit View Insert Format Tools Data Window Help 5. In a population of sea otters, the frequency of the alpha allele at locus Y6 is 0.8. If the population has 400 individuals, what is the expected number of alpha alleles in that population?a. 320b. 400c. 480d. 640e. 800 Which of the following answer choices best describes the algorithmic purpose of method ben?/** Precondition: i==0; */public static int ben(int[] ray, int i, int x){if( i >= ray.length ){return 0;}if( ray[i] == x ){return 1 + ben( ray, i+1, x );}else{return 0 + ben( ray, i+1, x );}}a. The method is counting the number of numbers in ray.b. The method is summing all of the numbers in ray.c. The method is counting the number of even numbers in ray.d. The method is counting the number of odd numbers in ray.e. The method is counting the number of occurrences of x in ray. Now you give this calculation a try with the following subnet entry 66.147.242.171/15 Using the methodology listed in step 1, determine the number of hosts (usable IPv4 addresses) for this subnet. Which of the following is not an additional tax a taxpayer may have to pay?A. Alternative minimum tax.B. Self-employment tax.C.Excess wage tax.D. Net investment income tax. Which of the following statements about supervising unlicensed assistants in Kentucky is correct?A)An unlicensed office manager is permitted to supervise an unlicensed assistant.B)The principal broker isn't permitted to supervise an unlicensed assistant.C)The principal broker may assign supervision of an unlicensed assistant to another licensee.D)The principal broker must supervise unlicensed assistants. Set up a triple integral in cylindrical coordinates to find the volume of the solid whose upper boundary is the paraboloid F2(x,y)=8-x-y and whose lower boundary is the paraboloid F(x,y)=x+y. Do not solve. Which of the following inventories would a company ordinarily hold for sale? a. Work in process. b. Finished goods. c. Raw materials. d. Work in process and finished goods. On October 29, 2014, Lobo Co. Began operations by purchasing razors for resale. Lobo uses the perpetual inventory method. The razors have a 90-day warranty that requires the company to replace any nonworking razor. When a razor is returned, the company discards it and mails a new one from Merchandise Inventory to the customer. The company's cost per new razor is $15 and its retail selling price is $60 in both 2014 and 2015. The manufacturer has advised the company to expect warranty costs to equal 6% of dollar sales. The following transactions and events occurred. 2014 Nov. 11 Sold 70 razors for $4,200 cash. 30 Recognized warranty expense related to November sales with an adjusting entry. Dec. 9 Replaced 14 razors that were returned under the warranty. 16 Sold 210 razors for $12,600 cash. 29 Replaced 28 razors that were returned under the warranty. 31 Recognized warranty expense related to December sales with an adjusting entry. 2015 Jan. 5 Sold 140 razors for $8,400 cash. 17 Replaced 33 razors that were returned under the warranty. 31 Recognized warranty expense related to January sales with an adjusting entry. 1. 1 Prepare journal entries to record these transactions and adjustments for 2014. 1. 2 Prepare journal entries to record these transactions and adjustments for 2015 Let A = {1, 3, 5, 7}, B = {5, 6, 7, 8}, C = {5, 8}, D = {2, 5, 8}, and U={1, 2, 3, 4, 5, 6, 7, 8}. Use the sets above to find B U D. A. B U D = {5, 8} B. B U D = {6, 7} C. B U D = {2,5, 6, 7, 8} D. B U D = {1, 3, 4} E. None of the above