In each trial, you will add an indicator to the
mystery food sample. But you will also add the
indicator to a known substance and water. Why is
that important? Check all reasons.
to practice measuring volume using the
graduated pipette correctly
to match the mystery food sample to a definite
positive result (gelatin, oil, etc.)
to match the mystery food sample to a definite
negative result (water)
to increase the amount of data.
DONE

Answers

Answer 1

Answer:

to match the mystery food sample to a definite

positive result (gelatin, oil, etc.)

to match the mystery food sample to a definite

negative result (water)

Answer 2

An indicator is added to a known substance and water to match the mystery food sample to a definite

definitepositive result.

What are indicators?

Indicators are substances which produce specific color changes in the presence of particular substances and these color changes are used to identify the substances.

In the trials to identify the mystery food sample, an indicator is added to a known substance and water to match the mystery food sample to a definite

definitepositive result.

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Related Questions

All viruses causes diseases and are called parasites True or False

Answers

Answer:False

Explanation:All viruses do not cause diseases,instead some are very beneficial,the help to prevent infections from the plague bacteria.But some viruses cause infectious diseases like HIV/AIDS,Ebola,Corona e.t.c and viruses are not called parasites because parasites are different from bacteria or viruses because their cells share many features with human cells and some parasites only replicate within a host organism but some multiply freely in the environment.

Which processes are affected by freeze and thaw cycles? Check all that apply.

creep

deposition

landslide

slump

weathering

Answers

I think creep but I am not sure

What is a short term goal related to maintaining reproductive and sexual health?

Answers

Answer:

eating better and exercising for a month

Question 1 of 10
2 Points
Blood has traveled from the heart to the fingers. Which describes the next
step of the circulation process?
A. The blood travels to the lungs to get carbon dioxide.
B. The blood returns to the heart through veins.
C. The blood releases oxygen on the way back to the heart.
0
D. The blood goes through the liver to be cleaned.
SUBMIT

Answers

Answer:

The blood returns to the heart through veins.

Explanation:

Blood returns to the heart from the body through the Vena Cava and from the lungs through the Pulmonary Vein . So mainly blood returns to the heart through Veins.

hope this helped!

8. Ligaments are strips of tough tissue that
support soft tissues inside bones
prevent friction between bones
connect bones to bones
attach muscles to bones

Answers

Answer: C

Explanation:

Ligaments are strips of tough tissues that serves as connective tissue for two or more bones and cartilages. These also holds the joints together.

Ligaments are strips of tough tissue that connect bones to bones; that is the third option because the bones that are present in the body are connected to each other with the help of the ligaments.

What is the significance of the ligament?

Ligaments are significant for many different factors, such as that they have an important role in physical activities such as sports and maintain optimal performance and injury prevention as they have a rich blood supply. They have an important role in preventing injuries to joints and bones as they protect bones and cartilage from excessive stress and connect bones to bones.

Hence, ligaments  are strips of tough tissue that connect bones to bones; that is the third option because the bones that are present in the body are connected to each other with the help of the ligaments.

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Multiple organs which are engaged in a specific process form a(n) ???

Answers

An organ system, I think. Hope this helps!

Answer: organ system

Explanation:

For example the stomach and intestines  that work together to digest food would be a digestive system. so depends on the organs that are working together.

What is thought to be the main driving force behind plate movements?
A. Hot plumes
B. Simple convection cycles in the mantle
C. Slab-pull
D. Slab-push

Answers

Answer: b

Explanation: the convection currents in the mantle are what cause the movement of the plates

Answer:

slab pull

Explanation:

Kangaroos are mammals that lack a placenta. Therefore, they must have an alternate way of supplying the developing embryo with

Answers

Answer: yolk sac

explanation:

the placenta does not develop for a long time so the alternate way of supplying the developing embryo is through the yolk sac which the embryo can receive nutrients and respiratory gas exchange through which the placenta will be formed later.

Kangaroos are mammals that lack a placenta; therefore, they must have an alternate way of supplying the developing embryo with nutrients, as these should be passed from the mother to the embryo during the time of pregnancy.

What is the function of the placenta in pregnancy?

The placenta is an organ that develops during pregnancy to provide nourishment to the growing fetus and to remove waste products from the baby's blood and is attached to the wall of the uterus and connected to the baby by the umbilical cord, it is responsible for producing hormones that maintain the pregnancy, such as progesterone, which helps to keep the lining of the uterus thick, also produces human placental lactogen, which helps stimulate the mother's mammary glands to produce milk.

Hence, kangaroos are mammals that lack a placenta; therefore, they must have an alternate way of supplying the developing embryo with nutrients, as these should be passed from the mother to the embryo during the time of pregnancy.

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The question is incomplete; the complete question is below.

Kangaroos are mammals that lack a placenta. Therefore, they must have an alternate way of supplying the developing embryo with

A. Carbon dioxide

B. Enzymes

C. Nutrients

Describe the difference between one's gender identity and one's sexual identity.

Answers

Answer:

Gender identity is your own, internal, personal sense of being a man or a woman (or as someone outside of that gender binary).

Sexual orientation describes a person's enduring physical, romantic, and/or emotional attraction to another person (for example: straight, gay, lesbian, bisexual).

Explanation:

Gender identity is your own, internal, personal sense of being a man or a woman whereas sexual orientation describes a person's enduring physical, romantic, and/or emotional attraction to another person.

What do you mean by gender identity?

Gender identity is the personal sense of one's own gender. Gender identity can correlate with a person's assigned sex or can differ from it. In most individuals, the various biological determinants of sex are congruent, and consistent with the individual's gender identity.

Gender identity is each person's internal and individual experience of gender. It is a person's sense of being a woman, a man, both, neither, or anywhere along the gender spectrum. A person's gender identity may be the same as or different from their birth-assigned sex.

Gender identity is each person's internal and individual experience of gender. It is a person's sense of being a woman, a man, both, neither, or anywhere along the gender spectrum. A person's gender identity may be the same as or different from their birth-assigned sex.

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what is a drawback to hydroelectric power?
A. fish being isolated on one side of the dam
B. water in the reservoir becomes warm
C. increases the dissolved oxygen
D. Increases the rate of nutrient flow downstream

Answers

Pretty sure it’s A fish are isolated for hydroelectric power

Match the following.
binary fission
colony
multiple fission
asexual reproduction in which a single cell divides into two
1. with no exchange of genetic material, reproduction method
of bacteria
asexual reproduction involving the growth of a new individual
from part of an older organism, uneven distribution of
2.
cytoplasm that results in one cell receiving most of the cell
contents
a group of organisms attached to one another after
3.
undergoing asexual reproduction from a common parent
the part of the cell division that causes the separation of the
4.
cytoplasm
a phenomenon in which organisms break into two or more
5.
parts and then each part grows into a new individual
the process involving the division of the nucleus of a body
6.
cell
asexual reproduction in which a single cell undergoes many
7 mitotic divisions in the nucleus and a number of daughter
cells are produced all at once
budding
cytokinesis
mitosis
fragmentation

Answers

Answer:      could you kindly mark me brainlest??

binary fission asexual reproduction in which a single cell divides into two with no exchange of genetic material; reproduction method of bacteria

budding A kind of asexual reproduction involving the growth of a new individual from part of an older organism. It can also refer to uneven distribution of cells that results in one cell receiving most of cell contents. In grafting, budding involves reducing the scion to a singular bud.

central disk =  The central portion of a starfish. The arms of a starfish radiate from the central disk.

colony = A group of organisms attached to one another after undergoing asexual  reproduction from a common parent.

conidia = A special kind of asexual spore found in many kinds of fungi.

multiple fission = A kind of asexual reproduction in which a single cell undergoes many mitotic divisions in the nucleus and a number of daughter cells are produced all at once.

propagation = The act of propagating or establishing and growing new plants.

protist = A one- or few-celled organism with chromosomes. Many have characteristics of both animals and plants.

regeneration = A phenomenon in which organisms break into two or more parts and then each part grows into a new individual.

spore = A small, resistant cell that can grow into a new organism. They may be produced either by meiosis or mitosis.

unicellular = One-celled.

Which answer best indicates the dynamic balance of an ecosystem

Answers

There are no answers listed.

modeling the carbon cycle assignment Include short phrases on your poster that summarize what occurs at each stage of the carbon cycle. help

Answers

Processes in the carbon cycle
Carbon enters the atmosphere as carbon dioxide from respiration and combustion. Carbon dioxide is absorbed by producers to make glucose in photosynthesis. Animals feed on the plant passing the carbon compounds along the food chain.

The use of nuclear energy can have both positive a.d negative consequences. Which of the following is a positive consequences of using nuclear energy

Answers

Answer:

One of the positive consequences of nuclear power plants is that it produces small amounts of air pollution. Comparing it to coal power plants, nuclear reactors has less or no production of air pollution while in operation. It is by far one of the power plants with least contribution to air pollution.

Explanation:

lllplplplplplplplplplp

Answer: False

Explanation:

hey please help
When explaining the 'circle of life' to Simba, Mufasa says, 'When we die, our
bodies become the grass...! What does her mean?
Is this accurate?​

Answers

Answer:

Hope i could help!

Explanation:

Mufasa is saying that when we die our bodies depcomose into the soil and feed the grass giving it minerals and nuitriants !

It means that when we die it gives a new life to another to live.

Select the correct answer from the drop-down menu.
from the atmosphere to
The atmospheric temperature decreases when snow starts melting because the snow
melt

Answers

Answer:

The atmospheric temperature decreases when snow starts melting because the snow  absorbs thermal energy from the atmosphere to melt.

Explanation:

The temperature of the air, the intensity of the sun, the speed of the wind, and the amount of humidity are the factors that influence the melting of the snow. The thermal energy in the atmosphere is absorbed by the snow because the temperature of snow is less than the temperature of the atmosphere. When the flow of temperature takes place, the energy also flows. The thermal energy helps the snow to melt because the snow requires warmth to melt.

Answer:

B

Explanation:

I need to know it ASAP thanks

Answers

The answer is B cause nucleus sends it to the entire cell
The correct answer is B Remember the endoplasmic reticulum is surrounded by rhizomes which are responsible for synthesis of proteins

State three things you do each day that affect the environment around you. Explain how the things you do affect the environment around you.

Answers

Answer:

Driving or using cars as a method of transportation increases the amount of Co2 released into the atmosphere. Due to this the environment becomes less and less unstable. Another daily thing I do every day that effects the environment is throwing away trash. As our trash fills the landfills some of them can be picked up by birds or even end up getting blown into the ocean. However, recycling is one positive aspect in our every day lives. When we recycle companies and factories are able to reuse things we no longer use. Because of this we are able to protect many ecosystems and the environment.

Biking reduces carbon emissions
Turning lights off during the day prevents wasted energy
Recycling reduces pollution in landfills

Mutations that neither benefit nor harm the organism have _________ effect on the organism's survival.


A. a positive


B. a negative


C. an aggressive


D. a neutral

Answers

The answer is D. A neutral

Answer:

Its neutral!

Explanation:

Which diagram below best represents the surface features developed in a humid climate?

Answers

Sorry I don’t know the answer

A diet lacking macronutrients leads to health problems, whereas a diet lacking micronutrients
does not
True or false

Answers

Answer:

Micronutrient deficiencies form an important global health issue, with malnutrition affecting key development outcomes including poor physical and mental development in children

so i think its true

A diet lacking macronutrients leads to health problems, whereas a diet lacking micronutrients. Thus, the given statement is true.

What is Micronutrient?

Micronutrient deficiencies form an important global health issue, with malnutrition affecting key development outcomes including poor physical and mental development in children.This type of diet comprises of macronutrients and micronutrients in which the former is responsible for provision of energy to the body.

A diet that is rich in fruit but lacking protein is a diet which is lacking in nutrients that will help hair, skin, and nails to grow. Correct answer: C The essential nutrients for hair,s kin and nails are protein, because hair and nails are made primarily of a protein called keratin, zinc, calcium, magnesium.This means that in order t support growth of the hair, nails and skin we should consume lean meat, chicken, lentils.

Therefore, A diet lacking macronutrients leads to health problems, whereas a diet lacking micronutrients. Thus, the given statement is true.

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Please help with this science question!!

Answers

Answer:

the body temperature of the fish would increase

Explanation:

Since fish can not increase or decrease their body temperature at will, their body temperature will be determined by the temperature of the surrounding water.

How does the process of ridge push cause the formation of new oceans?

Answers

Answer:

Explanation and answer below

Explanation:

Ridge push causes a rift valley; as the plates move apart, a new ocean basin forms, filling with water and eventually becoming a mature ocean. Ridge push causes a convergent plate boundary; as the plates move together, new islands form, which “trap” water between them, causing an ocean to form.

What’s the most common type of mutation observed in living populations

Answers

Cancer because that is one of the medical underlying causes of death amongst humans

Which of the following best describes why polar bears are a sub-species of brown bears instead of a completely separate species?

A. Because they both have thick fur and 4 legs, so they are very similar

B Because they both live on the same continent, so they can’t be two separate species

C. Because they can still breed in the wild. Once they no longer mate with brown bears, they will be considered a separate species

D. All of the above

Question 2: Which of the following share the most recent common ancestor with the polar bear?

A. The Giant Panda


B. The Sloth Bear


C. The Raccoon


D. Lesser Panda

Answers

Answer:

d,a

Explanation:

An eagle is a predator for squirrels. A new law stops humans from hunting
eagles, and the eagle population increases. What will happen to the squirrel
population?

O A. The squirrel death rate will increase.
B. The carrying capacity of the ecosystem will increase.
C. The ecosystem will reach Hardy-Weinberg equilibrium.
D. The squirrel population will increase.

Answers

Answer:

A. the squirrel death rate will increase

Explanation:

If there are more eagles, then there is more eagles that need to eat making squirrels one of targets

the squirrels will die off due to the eagles

List the six fundamental elements found in living
organisms in the text area below.

Answers

Answer:

EDG2021

Explanation:

Check the elements you included in your list.

carbon (C)

hydrogen (H)

oxygen (O)

nitrogen (N)

phosphorus (P)

sulfur (S)

You might see water dont touch it

Fundamental elements found in living organisms are carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), and sulfur (S). Thus, these are the six common elements found in living organisms.

What are the roles of elements in our body?

There are six common elements found in our body. Carbon is the building block of carbohydrates, fats, proteins, and vitamins. It provides us with energy. Hydrogen allows toxins and waste products to be excreted and keeps the body hydrated.

Nitrogen is used in the synthesis of protein and some hormones, oxygen is used in the combustion of food, and phosphorus is used in the formation of teeth and bone. Sulfur protects cells from damage.

Thus, the following are the six common Fundamental elements found in living organisms.

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3
How does rain form?
Water rises, cools, evaporates, and then condenses.
Water cools, condenses, evaporates, and then rises.
Water evaporates, cools, rises, and condenses.
Water evaporates, rises, cools, and then condenses.

Answers

Answer:

D

Explanation:

water evaporates rises cools and then condenses

Which kind of bond is formed when electrons are shared between
atoms?
O A. lonic
O B. Covalent
O G Metallic
O 0 Hydrogen

Answers

Answer:

A. Ionic

Because an ionic bond is a type of chemical bond made  through an electrostatic attraction between two oppositely charged ions.

Hoped I helped -

Sleepy~

Which of the following methods would provide the most accurate information for students collecting data about local attitudes concerning the use of alternative fuels for automobiles?

Answers

Answer:

tell us the methods dude

Explanation:

dude you need give us the methods so we can tell you

Other Questions
if(x+3) and 133 digree is a pair of vertically opposite angles then the measure of x is What is the volume of a rectangular prism with l = 412 cm, w = 312 cm, and h = 6 cm?A.9012 cubic centimetersB.9412 cubic centimetersC.95 cubic centimetersD.9512 cubic centimeters Write in the space provided the type of non-Mendelian inheritance from the list above that matches the descriptions or the examples listed below. 1. ________when a gene has more than two allele variants.2. ________Whena singlegene orallele controls the expression of 2 or more traits. 3. _______when offspring show a blended phenotype, a physical appearance intermediate to the phenotype of both parents.4. _______when an allele is carried in the X chromosome. 5. _______when two dominant alleles are equally expressed in the phenotype. 6. _______when a snapdragon plant with red flowers is crossed with a snapdragon plant with white flowers and all their offspring produce pink flowers. 7. _______when the offspring of a red bull and a white cow producer oan offspring, a coat pattern that shows an equal mixture ofred hairs and white hairs. 8. _______when one gene controls the expression of a gene at a different locus. 9. _______in humans, wetear wax and strong body odor are two characteristics controlled by one allele. 10 ______red-green color blindness is a deficiency that appears more frequently in men. Boys inherit thered-green color deficiency allele from their mothers. Helpp !One part of the immune response that is specific to a particular pathogen isthe production ofO A. lysozyme moleculesO B. neutrophilsO C. macrophagesD. memory cells A Raisin in the SunHansberry gently integrates comedy into this play. For what purpose? Solve the following equations using algebraic operations ( 4x-1=2x+11) directions for constructing the orthocenter of a triangle? A livestock vaccine is to be given at the rate of 2 milliliters for each 15 pounds of body weight. How much should be given to a 60-pound goat? ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. I say no guessing because people usually guess on my questions. Suppose that you walk 15 meters at 30 degrees as measured from the East. Then you walk another 25 meters at 60 degrees from the East what is your net displacement What was a goal of French expansion into Asia?O spreading ChristianityO establishing inessesO creating a larger armyO improving technology A loan of $8 000 was repaid in 2 years inmonthly payments of $400.00. The intereston the loan, as e percentage, was? Which of the following is an offer? Select one: a. Hedva walks into the Ferrari Dealership and says, I am going to buy a car. b. Lucy says to Zehmer I bet you wouldnt sell this house for $50,000. c. "This car isn't worth what you're charging. d. Bruo says, I will pay $25 for this book. Sarah wants to refurbish her shop.She is quoted 2500 for the refurbishment, with a 20% discount to be taken off.What is the final cost of the refurbishment after the discount? Select the correct text in the passage.Industrialization in Europe changed the way people lived. The urban working class came into being, and with it came the drudgery of work.Which two parts of this excerpt from Franz Kafka's The Metamorphosis most closely reflect this impact of industrialization on people's lives? The weight of anobject on Earth variesdirectly as the weightof that object on theB moon. If a 150-1bobject would weigh24 lbs on the moon,how much would a 95-lb object weigh on themoon? i suck at geo please help Share 45 in the ratio 4:5 Unscramble the following words to form a completesentence about the cycles of nature:limited is through environment Matter recycled the on Earth is and How does this scene contribute to the plot? Act 2 scene 1