The purpose of the control is to ..?

Answers

Answer 1
The control group is used as the constant variable

Related Questions

Why are some theories more widely accepted than others such as the theory of evolution?

Answers

Answer:

Scientific theories is accepted as a scientific truth, supported by evidence collected by many scientists. The theory of evolution by natural selection is a classic theory. Keeping in mind a Hypothesis is a possible answer to scientific questions.

Explanation:

I majored in Biology

PLSPLSPLS HELP ASAP



a scientist discovers that the acidity of a lake increases overtime. at the same time, its population of Minnows grew smaller. when the adicity of the lake return to normal, The Minnow population recover.

In what two ways can the minnow population be used to monitor the Lakes water quality?

Answers

Answer:

In the above case we can understand that,

If the pH of the water increases the population of Minnows decreases.Minnows population can be determined by the acidity of the lake water.Minnows cannot survive in basic water.

Answer:  The answer is "It can be used to identify possible pH changes." and "It can be used as a bioindicator."

Explanation:

I got it right.

Which of these is the form in which
igneous rock begins?
A. sediment
B. magma
C. carbon
D. soil

Answers

Answer:

B)Magma

Explanation:

:-) :-) :-) :-) :-) :-) :-) :-) :-)

Please help

Answers

Answer:

B

Explanation:

sorry if im wrong!!!

write a short paragraph on hydra​

Answers

Answer:

at the moment i am thinking of 3 different hydra, marvel, mythical creature and creation on sexual reproduction between plants. If you could tell me the subject i could explain it to you. :)

Explanation:

Hydra are simple invertebrates, with two layers of body cells. They live in fresh water. Their body is radially symmetric. They have a central cavity through which they take in food and expel waste.

PLEASE HELPPPPPPP

(Monstro the Goldfish & Epigenetics)

Answers

Answer:

mmmmmmmmmmmmdddddd

Explanation:

ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

Which plant propagation process insures some genetic diversity?

Answers

Answer:

Seed propagation takes place during sexual reproduction. The production of seeds through auto-pollination or crossed pollination ensures some genetic variation.

Explanation:        

Seeds ensure the existence of genetic variation between plants. There are two general crossing systems in plants, which depend on pollination type.  

Self-pollination occurs when the flower pollen is transferred to the same flower stigma, reaching that individual egg to fertilize it. These are autogamous systems. Crossed pollination occurs when the mature pollen is driven by different pollinator agents from one flower to another, reaching the other flower stigma and fertilizing its eggs. These are xenogamous systems.

Sexual reproduction gives more possibilities to different alleles of a gene that did not appear in one generation to express in the next generation. Both types of pollination allow genetic variation, however by the occurrence of crossed pollination there are more chances to ensure the variability of the species and survival to environmental changes. While by self-pollination there are more chances to express the same genotype of the parental plant. The Xenogamous system has the advantage of avoiding the effects of endogamy in a population.

Why are bananas curved?

Answers

Answer:

It's because of the sun! Bananas are curved so they can retrieve sunlight. Bananas go through a process called 'negative geotropism'.What it means is that bananas grow away from the ground, instead of growing towards it, hence the 'negative' geotropism.

Explanation:

g.o.o.g.l.e lma o

Answer

It's because of the sun!

Explanation:

Bananas are curved so they can retrieve sunlight. Bananas go through a process called 'negative geotropism'. Meaning it grows away from the ground instead of towards it.

A dead organism takes matter out of the ecosystem cycle and that matter
can never be used again. *
O True
False

Answers

Answer:

Decomposers break down dead organisms into nutrients and gases so that they can be used by other organisms. Nutrients can enter or exit an ecosystem at any point and can cycle around the planet.

Answer:

False

Explanation:

6. A characteristic common to both diffusion and active transport is that
the movement of molecules occurs
energy is needed
oxygen is moved across a membrane
O
molecules move from low concentration to high concentration

Answers

Answer:

oxygen is moved across a membrane O, cause the others are untrue.

“Fish and other wildlife become unhealthy and die without __________.”

Oxygen
Carbon Dioxide
Eutrophication

(This is 7th grade science)

Answers

Answer:

Oxygen

Explanation:

Andwer is oxygen if not then eutrophication

In which beaker were the particles moving the most slowly?

Answers

Answer:D, 3c is slowest, lower the temperature, the lower the movement, the lower the engery.

Explanation:

please help i will give brainlist

Answers

Answer:

I think it's c hope I hope I helped if not I'm sorry:(

Option B is i hope
I think it is

There are many different types of cells with many different types of cellular structures and functions. Which of these structures is found in all types of eukaryotic cells?
A. chloroplast
B. cell wall
C. nucleus
D. centrioles​

Answers

Answer:

nucleus

Explanation:

chloroplasts and cell walls are only found in plant (and fungi) cells, while centrioles are only in animal cells.

The structure that is found in all types of eukaryotic cells is the nucleus. The correct option is C.

What are eukaryotic cells?

Eukaryotic cells are those cells that contain true cell organelle. These cells are present in the higher organism, and they perform complex functions like replication, mitosis, etc.

There are two types of cells. They are prokaryotic and eukaryotic cells. Prokaryotic cells are those that do not contain an organelle and a nucleus. They are present in smaller organisms.

The nucleus is the brain of cells. It controls all functions of cells, and it contains the genetic material of the organisms. In prokaryotic cells, the nucleus is absent and in eukaryotic cells, the nucleus is present. That is the difference between them.

Thus, the correct option is C. nucleus.

To learn more about eukaryotic cells, refer to the link:

https://brainly.com/question/982048

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what RNA nitrogen bases match with the following DNA nitrogen bases?

Answers

While DNA has the ATCG nitrogenous bases, RNA replaces thymine with uracil, making its bases AUCG. So, that means that whenever DNA has adenine, instead of pairing this with thymine, RNA will use uracil instead.

what was not included in john dalton's description of the atom

Answers

Answer:

Nucleus containing protons and neutrons  and electrons

Explanation:

Answer:

This is what i found-

Explanation:

The indivisibility of an atom was proved wrong: an atom can be further subdivided into protons, neutrons and electrons. However an atom is the smallest particle that takes part in chemical reactions. According to Dalton, the atoms of same element are similar in all respects.

write the code for RNA from this DNA STRAND :

AAAAAATTTTTTCCCGGGGTTTATATATC

Answers

Answer:

UUUUUUAAAAAAGGGCCCCAAAUAUAUAG

Explanation:

All you have to do is apply the same concept as DNA, but T (Thymine) is replaced with U (Uracil)

The charged particles in the beams that Thomson studied came from atoms. As these particles moved away from their original atoms, they formed a visible beam. The current model of the atom includes protons, neutrons, and electrons.

What is the best use of an atomic model to explain the charge of the particles in Thomson’s beams?

An atom’s negative particles are surrounded by positive matter, so the positive particles are easier to remove.
An atom’s positive particles are surrounded by negative matter, so the negative particles are easier to remove.
An atom’s smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to remove.
An atom’s larger positive particles are at a distance from the central negative particles, so the positive particles are easier to remove.

Answers

The question to the above information is;

What is the best use of an atomic model to explain the charge of the particles in Thomson's beams?

Answer;

An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to remove.

Explanation;

-Atoms are comprised of a nucleus consisting of protons (red) and neutrons (blue). The number of orbiting electrons is the same as the number of protons and is termed the "atomic number" of the element.

J.J. Thomson discovered the electron. Atoms are neutral overall, therefore in Thomson’s ‘plum pudding model’:

atoms are spheres of positive chargeelectrons are dotted around inside

Answer:

Its C on edge

Explanation:

list one part of the cell theory in your own words, explain what it means

Answers

One part of the cell theory is that pre-existing cells can form more cells

This means that cells that currently exist are capable of creating more cells, however it’s a slow process

An example of __ is the color of betta fish. When a RED fish (GG) is crossed with a YELLOW fish (gg), all of the offspring will be a ORANGE color (Gg)

Answers

Answer:

The correct answer is  - incomplete dominance.

Explanation:

In the betta fish, there are different types of colors found in the fishes depends on the alleles present in their gene which follows incomplete dominance. Incomplete dominance is an inheritance pattern where a dominant allele does not mask completely and produce a blend of both alleles if present in heterozygous condition.

In the question, It is stated that when a cross between RED fish (GG) and a YELLOW fish (gg) produce orange color fish as offspring (Gg) which is a mix or blend of both alleles Red (dominant) and yellow (recessive).

Which statement is true about gold and helium?
A. They both occur as a gas at room temperature.
B. They are both made of subatomic particles.
C. They are both used in balloons.
D. One of made of protons and the other of only electrons.

Answers

Answer:

The answer is B

B. They are both made of subatomic particles.

Which statement best explains the myth about how Romulus and Remus founded Rome?

Answers

After deciding to build a town on one of seven hills, Romulus and Remus had to decide which hill to base it off of and Romulus chose Palatine hill and Remus chose Aventine Hill, Later leaving Romulus to kill Remus in a fight and build the city on Palatine hill hence the name Rome.

Answer: Romulus defeated his brother, then founded Rome on one of the seven hills.

Explanation: Despite there is no answer choices, I'm thinking back on a little quiz I took, and it had the same exact question with the same exact answer choices, and that was the correct answer

What is the purpose of the other tube of water?

Answers

Explanation:

cant see photo

Answer:

delude the other thing

there is no picture so i have no idea what your asking. ill edit this answer to be more specific when you explain

Explanation:

Why is weather different from place to place?​

Answers

Answer:

There are differences in climate around the world because of differing amounts of radiation received from the Sun at different parts of the Earth at different times of the year.

Explanation:

Hope this helps :)

Answer:

because according to where they are located, atmosphere brings different weather and temperature, and some places are further away from the sun, just like when it is day in one side but night on the other

Explanation:

How does the force of gravity move objects in the solar system?

Answers

Answer:

One of the most noticeable effects of gravity in the solar system is the orbit of the planets. The sun could hold 1.3 million Earths so its mass has a strong gravitational pull. When a planet tries to go past the sun at a high rate of speed, gravity grabs the planet and pulls it towards the sun

Explanation:

17. What causes evaporation?
O Air that is unsaturated with water vapor comes into contact with the surface of the water
O Air that is cooler than the water comes into contact with the surface of the water
O Air that is warmer than water comes into contact with the surface of the water
O Air that is supersaturated with water vapor comes into contact with the surface of the water in

Answers

the answer is the first one

Evaporation occurs when air that is warmer than water comes into contact with the water's surface, hence option A is correct.

What is evaporation?

As a liquid transforms into a gas, evaporation, a sort of vaporization, occurs on the liquid's surface. For instance, a high concentration of the evaporating substance in the surrounding gas significantly slows down evaporation when humidity affects the rate of evaporation of water.

It takes in moisture from garden soil as well as the biggest lakes and seas, and the level of the water will decrease when it is heated by the sun.

Therefore, solar energy, or heat from the sun, is what causes the evaporation process to occur, hence option A is correct.

Learn more about evaporation, here:

https://brainly.com/question/5019199

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Which of the following foods are native to rainforests?
a. papayas
b. mangoes
c. Sugarcane
d. all of the above

Answers

Answer:

on edge here's the correct answer

Explanation:

Answer: It is D)

Explanation:

what is a global fire

Answers

Answer:

a wild fire of a spreading fire that reaches a global span

Explanation:

Fireeeeeeeeeeeeeeeee

Which of these is an advantage of fossil fuels? *

O Reliable
O Large reserves
O Greenhouse gas emissions
O Non-renewable





Answers

Answer:

reliable

Explanation:

Explanation:

Fossil fuels are a non-renewable resource.

(GIVING BRAINLIEST!!)


James made the following table to compare the common characteristics of planets. Which of the following would best replace X?


A) Asteroids

B) Comets

C) Moons

D) Stars

Answers

Answer: moons

Explanation:

Mars and Neptune both have moons

Answer:

hi answer is moons

Explanation:they have moons :)

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Ahimsa focuses on the unity of people throughout war. true or false? The amount of interpersonal space (space between people while interacting) that is acceptable varies by culture. This activity is important because interpersonal space is one of the key cultural areas to understand in business if you want to bridge cross-cultural gaps. The goal of this exercise is to test your knowledge of the cultural area of interpersonal space.Determine which of the following countries has Least Social Distance and Most Social Distance.a. Chinab. UKc. Saudia Arabiad. Indiae. USA Why were Americans most likely willing to accept such a large growth of the federal government? (4 points) a Federal programs helped their own lives. b They were willing to believe anything Roosevelt said. c Democratic economic policies had been successful in the past. d Critics of the New Deal convinced them it was necessary. what does blood type mean and why does it matter Which mapping diagram represents a relationship that is a function?Mapping AMapping B37O Mapping AO Mapping BO both Mapping A and Mapping B A new app charges an annual fee plus an additional fee per new game downloaded. The table shows the linear relationship between the number of new games downloaded and the total cost including the annual fee. Which statement is true?A.The additional fee per game is $10.B.The additional fee per game is $1.99.C.The annual fee is $1.99.D.The annual fee is $19.99. The division of the cytoplasm, which follows Mitosis, is called... What exactly is the electoral college Helpppppppppppppppppppppppppppppppppp Page 1Page 2On July 16, 1945, the world's first atomic bombwas detonated in a remote part of the NewMexican desert. Soon after, some of thescientists involved provided their opinions on howthis new weapon should be used.Which statement best describes the point of view ofthe scientists on this project?They had differing opinions about whether to dropthe bomb.They all agreed that dropping the bomb was theright thing to do.They all agreed that dropping the bomb was thewrong decisionThey had no opinion about whether to drop thebomb. Which is a graph of y=3x-1 Please help me Im very stuck? . Which of the following are container elements?a. bold b. underline c. italics d. all of these Let y be a function of x such that 8x+7y=51 what is the rate of change of y with respect to x What type of democracy in the United States of America? Is it a direct or indirect democracy? Which do you feel would be more beneficial for our country? These chracters are in the wrong order please rearrange them Describe the graph of the equation y = 0. Is the equation a function?A. horizontal line; noB. horizontal line; yesC. vertical line; noD. vertical line; yes HELP ASAPJoe is experimenting to determine which liquid will cause bean plants to grow faster. He watered the plants with equal amounts of liquid and measured their height every other day. The plants are in the same pots with different soils and placed in the same location. Will Joe be able to obtain reliable data to write a supported conclusion?Yes, because he is only observing the height of the plant.Yes, because he is consistent with watering the plants.No, because he used different soils.No, because he uses only one type of plant. 5/7(14-21x)=115what is the answer? Bam hi cuts between what bases what belief is common to judaism, chrisitanity , and islam