А (blank)
is a chemical substance that organisms require to live.​

Answers

Answer 1

Answer:

Nutrient

Explanation:

Nutrients are compounds in foods which are essential to life and health of living organisms, providing them with energy. They are the building blocks for repair and growth and substances necessary to regulate chemical processes. There are six major nutrients:

Carbohydrates,Lipids (fats),Proteins,Vitamins,Minerals,Water.

Related Questions


1.
Which list below describes the next steps of evaporated water through the water cycle? (3 points)
Condensation, precipitation, runoff, ocean storage
Transpiration, condensation, precipitation, ocean storage
Precipitation, condensation, runoff, groundwater
Evaporation, condensation, precipitation, runoff
2.


What is a possible cost of using nonrenewable energy resources? (3 points)
Greenhouse gases
Less water pollution
Sustainable energy
Costs more money
3.


What is the benefit of recycling plastic and paper products to wildlife? (3 points)
Less expense
Clean fuel
Sustainable energy
Fewer landfills
4.


What is the next phase of the carbon cycle for the carbon source labeled A? (3 points)

Label A shows a collection of coal, oil and gas. Label B shows a collection of trees and vegetation. Label C shows sky and open atmosphere.

Photosynthesis
Ocean storage
Fossil fuel emissions
Transpiration
5.


Where is the last storage location for melted snow? (3 points)
Rivers
Ocean
Streams
Mountains
6.


How can the carbon stored in plants reach the atmosphere? (3 points)
Evaporation
Diffusion
Photosynthesis
Cellular Respiration
7.


Which statement best describes the role of plants in the water and carbon cycles? (3 points)
Plants release oxygen when they decompose take in oxygen for photosynthesis.
Plants take in carbon dioxide during photosynthesis and absorb water through their leaves and roots.
Plants take in oxygen during photosynthesis and absorb carbon dioxide through their leaves and roots.
Plants use oxygen to perform photosynthesis and release carbon dioxide as a by-product.

Answers

Answer:

1. d  

2. a  

3. d  

4. probably c  

5. b  

6. d  

7. b

Explanation: Got straight A's in all my biology classes, hope this helps!

What is phototropism???​

Answers

Answer:

Phototropism is an important light response in plants. Positive Phototropism leans towards the light and negative Phototropism growth away from the light.

Explanation:

What is thw purpose of the proper handling of experimental subjects?

Answers

Answer:

To ensure that good and reliable data are collected.

Explanation:

:)

Answer:

C, “To ensure the hypothesis is shown correct”.

Step-by-step explanation:

Hope this helps!

ATP molecules, which are used for energy by cells, are built during all three stages of cellular respiration. Which stage of cellular respiration generates the most ATP molecules? (1 point) The Krebs cycle Glycolysis The electron transport chain Fermentation

Answers

Answer:

Electron transport chain.

Explanation:

write about the circulation of lymph for class 10​

Answers

Answer:

The lymphatic system is a complex system of fluid drainage and transport, and immune response and disease resistance. Fluid that is forced out of the bloodstream during normal circulation is filtered through lymph nodes to remove bacteria, abnormal cells and other matter.

lymph circulation. The flow of lymph from the tissues into the lymphatic collecting system. ... It is collected into lymph capillaries, which carry the lymph to the larger lymph vessels. These converge to form one of two main trunks, the right lymphatic duct and the thoracic duct.

Understanding the lymphatic system's role in immune cell trafficking and immune responses, contribution to fat transport, distribution, metabolism and implication in the pathogenesis of chronic intestinal inflammation may provide the basis for new therapeutic strategies and improved quality-of life.

HOPE IT HELPS : D

Explanation:

In a modern hive of honey bee, honey is harvested from
Brood box
Top cover
The hive stand
The super

Answers

Explanation:

the process of groeing honey is Apiculture

Which option gives an accurate reason why ethical guidelines are needed for the way scientific information is communicated?
(Select all that apply)
Businesses can perform and fund research studies, which potentially creates bias.

Scientific journals have a long history of publishing questionable research.

Government funding of research studies has the potential to create bias.

Poor research could potentially impact the health and welfare of the public.

Answers

Answer:

Poor research could potentially impact the health and welfare of the public.

Explanation:

Scientific studies are generally believed to be based on thorough research. This implies that members of the public always trust scientific publications and rely on same as a source of accurate and trustworthy information.

Science, being empirical in nature is believed to eliminate bias in its research and reportage of studies. Scientific research publications is often a source of information for field practitioners in diverse disciplines as well as the general public.

Poor research will mislead a large section of the public, both professionals in that field as well as laymen. This poor research could potentially impact the health and well being of members of the public negatively because they may be led to believe false information which can be disastrous. This is the reason why ethical guidelines are needed for the way scientific information is communicated.

Read the information for transcription and then answer the question. Protein Synthesis Explain the process of transcription.

Answers

Answer:

Please find the explanation below

Explanation:

Transcription is the first process that occurs in protein synthesis. It involves the use of the stored information in the DNA molecule to synthesize a mRNA molecule.

Transcription, which occurs in the nucleus of eukaryotes and cytoplasm of prokaryotes, is catalyzed by an enzyme called RNA polymerase. RNA polymerase binds to the double-stranded DNA and begins to unwind it (Initiation). This unwinding causes the nucleotide bases to be exposed in order for the RNA polymerase enzyme to read.

The enzyme reads the bases of the DNA and begins to synthesize RNA nucleotides using the complementary base pairing rule (Elongation) i.e. Adenine base paired with Uracil base (RNA), and Guanine paired with Cytosine etc.

The single-stranded mRNA is released at the end of the transcription process (termination). This is basically what occurs in transcription.

The gene coding for the protein untwists and unzips.

RNA nucleotides form complimentary base pairs with the DNA bases.

Hydrogen bonds and sugar-phosphate bonds form and the mRNA strand is synthesized.

mRNA peels off the DNA and moves to the cytoplasm.

WARM-UP
Which statements are true? Check all that apply
In eukaryotes DNA is found in the cytoplasm of the cell
RNA is the nucleic acid that helps build proteins
DNA is the nucleic acid that carries genetic infomation
The structure of proteins is determined by DNA
A chromosome is made of RNA
DONE
which statements are true

Answers

Answer:

answer is 2,3,4 on edge

Explanation:

took the test

Answer:

2,3,4

Explanation:

edge 2020 warm-up

Explain how is it possible to have twins that are not identical​

Answers

Fraternal (dizygotic) twins come from 2 different fertilized eggs that both grow in the mother's womb. They have different DNA (2 eggs from the mother, 2 sperm from the father) and are not identical, although they often look alike.

Identical (monozygotic) twins come from one fertilized egg that has split in two. These twins share the same DNA and are completely identical.

Identical twins develop from the same egg and sperm,the embryos split and form identical twins ,they are the same sex. But some are fraternal twins, they develop with two diferent sets of sperm and eggs by the same parents. They can be from diferent, this is like having diferent babies at the same time.

Look at the chemical reaction below
Magnesium + hydrochloride acid —> magnesium chloride + hydrogen
Mg + 2HCI —> MgCI2 + H2
In this reaction
Magnesium (Mg) is a reactant or product
Hydrogen (H2) is a reactant or product
Magnesium chloride (MhCI2) is a reactant or product
Hydrochloride acid (HCI) is a reactant or product

Answers

Answer:

Mg is a reactant ,H2 is a product, MgCl2 is a product and HCl is a reactant.

Which molecular formula corresponds to this model of a chemical compound? (black = carbon; red = oxygen; white = hydrogen) A ball-and-stick model has two black balls bonded to each other at center, with single-bonded red balls bonded to white balls above left and below right, and double-bonded red balls above right and below left. C2(OH)4 C2H2O4 C2H4O2 C4H2O2

Answers

Answer:

C2H2O4

Explanation:

The molecular formula can be derived through the below analysis.

Two black balls (C) bonded to each other at the center = C2

Single-bonded red balls (O) bonded to white balls (H) above left and below right = (OH)2 = O2H2

Double-bonded red balls above right and below left = O2

Adding the three together = C2 + O2H2 + O2 = C2H2O4

The correct answer is C2H2O4

Answer:

b

Explanation:

just took the test on edu 2022

why is the nucleus command center of the cell

Answers

It codes for all the processes within the cells and contains the DNA.

Answer: The nucleus is the largest and most prominent of a cell's organelles (Figure 3.7). The nucleus is generally considered the control center of the cell because it stores all of the genetic instructions for manufacturing proteins.

Explanation: Plz can I have brainlest.

Rashida doesn’t think that skepticism should play an important role in the scientific process. She says that skepticism interferes with scientific consensus. Which statement best describes Rashida’s conclusion?
It is incorrect because skepticism helps scientists recognize when ideas are not supported by evidence.
It is correct because skepticism prevents the acceptance of creative ideas and new discoveries.
It is correct because skepticism prevents scientists from testing new ideas and communicating with other scientists.
It is incorrect because skepticism leads to the acceptance of new ideas, which can eventually gain scientific consensus.

Answers

Answer: b

Explanation: sorry if im wrong

give examples of how hypothesis lead to new experimental methods

Answers

Answer:

Thomas Hunt Morgan continues on with the genetic research which is of Gregor Mendel but according to research Morgan used fruit flies.

Explanation:

Hypothesis is termed as an explanation which is being proposed for a phenomenon. There is a difference which is between scientific theory and scientific hypothesis.

i am usually single-stranded. is it DNA O RNA ?

Answers

Answer:

RNA

Explanation:

DNA is double-stranded DNA mostly and RNA is single stranded mostly.

RNA is single and DNA is doubles

What are the commercial uses of yeast and bacteria? Explain.​

Answers

Answer:

commercial use of yeast are:

Explanation:

1. yeast is microorganism which is used for large production of alcohol. this alcohol is used in making of wine, beer, whisky as well as industrial spirit.

2. yeast is capable of converting sugar into alcohol .

2. Assume that crossing over does not occur in the region of each chromosome that is associated with the centromere. You have 46 centromeric regions in each cell, 23 that are copies of the DNA in your mother’s egg and 23 that are copies of the DNA father’s sperm. Show your work for A,B,C a. For any given gamete, what is the probability that all the centromeric regions (chromosomes) will be copies of the same ones that you received from your mother? b. It has been estimated that the average person is heterozygous for at least 2,000 protein forming genes. How many different kinds of gametes is it theoretically possible for each person to produce? c. Considering the maternal and paternal origin of the centromeric regions alone, how many different kinds of gametes can you produce?

Answers

Answer:

See below

Explanation:

A. centromeric regions from mother in one cell: 23

total number of centromeric regions in one cell: 46

for every centromeric region that is inherited by the gamete, there is a 0.5 probability that it is from the mother. Hence, if all are from the mother:

0.5 ^ 23 = 1.19 x 10^(-7)

B. Heterozygous for 2000 genes means 4000 possible alleles.

2 ^ 4000 = 1.3 x 10^(1204)

C. 2 ^ 46 = 7.03 x 10^(13)

a.
Identify the biotic limiting factor from the choices below.
space
b. vegetation
C. water
d. climate

Answers

Answer:

b.

Explanation:

Plants are living things(biotic).

water and climate are non-living things (abiotic)

Which is an example of matter cycling through the bodies of living things?
A. Whales swimming in the ocean
B. Whales eating plankton
C. People visiting the aquarium
D. Plankton moving with the tide



Answer: B whales eating plankton

Answers

Answer: I would say B. whales eating plankton

Explanation: Whales eating plankton causes the plankton to travel through the digestive tract and be converted to energy, so that answer would probably be your best bet.

Answer:

b

Explanation:

PLEASE HELP !!! Match the following terms and definitions.

1. the testing of a hypothesis in duplicate with only one factor being different
scientific method
2. an assumed explanation for a problem
hypothesis
3. a recognized means of inquiry to provide scientific answers to questions
theory
4. supported by evidence gathered over a period of time
controlled experiment

Answers

Answer:

Controlled experiment: the testing of a hypothesis in duplicate with only one factor being different.

Scientific Method: a recognized means of inquiry to provide scientific answers to questions.

Hypothesis: an assumed explanation for a problem

Theory: supported by evidence gathered over a period of time

Hope this is right!!!

Analicen el cariotipo humano y den dos ejemplos de pares de cromosomas metacéntricos, dos ejemplos de pares telocéntricos y dos ejemplos de pares acrocéntricos.

Answers

Analyze the human karyotype and give two examples of pairs of metacentric chromosomes, two examples of telocentric pairs, and two examples of acrocentric pairs.

Answer: The test that is conducted to evaluate and identity the shape,size and number of chromosomes in cells of organism is called the Karyotype.

Metacentic chromosomes   are X -  shaped chromosomes. They have centromere at the middle, which makes the arms of the chromosomes equal in length. Therefore any type of chromosomes with equal length of arms is said  to be Metacentic.  Thus  chromosomes  on position  1,13, 16 , 19  and 20 are examples.

When a pair of chromosomes showed  a regular segregation at anaphase  of meiosis, they are said to be telocentric. They are type of chromosomes in which the centromere are located  at the terminal ends of the chromosomes, with the telemeres extending from theses ends.Hence during segregation, the ends of  telocentric chromosomes are orientated towards the poles of the cells. example is the alphabets ''i'' shaped chromosomes in mice and 29 pairs autosomes  in Angora goats.

When the centromere is located in such a way that one arm lenght of a chromosomes is longer than the other, then this is called acrocentric. Example is chromosome 21 of down syndrome.others are 13, 14, 15, 22, and Y-chromosomes.

Explanation:

can someone answer this

Answers

Answer:

B) 64

Explanation:

Respiration occurs in the__________
1 nasal cavity
2 lungs
3 red blood cells
4 cells of the body

Answers

Answer:

cells of the body

Explanation:

Respiration happens in the cells of plants, animals and humans, mainly inside mitochondria, which are located in a cell’s cytoplasm, energy released during respiration is used by plants to make amino acids, and by animals and humans to contract their muscles to let them move. Don't confuse respiration with breathing. Respiration releases energy, while breathing

What did you include in your response? Medications can be tested on cell cultures instead of being injected into patients unnecessarily. Cancer cells continue to grow in the cultures uncontrollably allowing scientists to test multiple medications on the cancer cells. Specific treatments that are shown to fight the growth of cancer cells in the culture can be used on patients. Cultures are safer to use than injections of unneeded medications into patients.

Answers

Answer:

The statements are correct.

Explanation:  

Cell culture is a technique widely used in molecular biology where cell lines are grown in controlled conditions, thus allowing to make experiments and to test compounds that may result useful to treat diverse diseases, including cancer.  

Immortalized cell lines are characterized for their ability to proliferate indefinitely which are derived from oncogenic tissues. In cancer research, these lines are used as models to test different drugs and to study cellular mechanisms associated with cancer progression including, among others, proliferation, invasiveness, vascularization, etc. In addition, the mechanisms associated with the death of cancer cells such as, for instance, apoptosis, may also be studied by using immortalized lines.

Find the area o o
Trabezium whose parallel
sides are 57cm & 33cm and the distance between
them is 13cm​

Answers

Answer:

585 cm²

Explanation:

base lengths= 57 cm and 33 cm

height= 13 cm

area= 1/2(57+33)*13= 585 cm²

[tex]\huge{\mathfrak{\purple{Question}}}[/tex]

Find the area of Trapezium whose parallel

sides are 57cm & 33cm and the distance between them is 13cm

[tex]\huge{\mathfrak{\purple{Answer}}}[/tex]

585 cm²

[tex]\huge{\mathfrak{\purple{Explanation}}}[/tex]

Given

Sides of Trapezium ( Length )= 57 and 33 cmDistance Between them ( Height ) = 13 cm

To find Area of Trapezium

Formula of Area of Trapezium

Formula of Area of Trapezium = 1/2 X ( Sum of Length ) X Height

= 1/2 X ( 57 + 33 ) X 13

= 1/2 X 90 X 13

= 585 cm²

#HopeItHelps

Is the greenhouse effect good or bad

Answers

it is a good thing because it helps reduce the radiation that the earth emits

Water is the least dense when it

Answers

Answer:

Water is least dense at 0°C (freezing point)

when it is at it’s freezing point

If a lunar eclipse occurs tonight, the next lunar eclipse would occur?

Answers

Answer:

in 10 years

Explanation: im pretty sure

Answer:

every 2.5 years

Explanation:

Think back about your experience in this lab using a dichotomous key. What might make it hard for someone to use a dichotomous key? Make a list of possible reasons.

Answers

Answer: why it is hard to use dichotomous key in the lab are;

If the organisms you want to use it for are similar.

If you can't see the little characteristics posses by the organisms you are using it for.

If all the pictures does not reveal all the important features of the organisms.

It is very difficult to use it to determine the anatomical structure.

Explanation:

Dichotomous key is an important method that is use in biology to identify organisms by separating or dividing the organisms into two groups. It is a tool created by scientists to help them identify organisms or objects. Once the organisms are group into two, more information is revealed more individually.

Answer:

The person who commented before me was correct. They should get brainliest. Below is the same thing they wrote just in paragraph form.

If the organisms you want to use it for are similar. If you can't see the little characteristics posses by the organisms you are using it for. If all the pictures does not reveal all the important features of the organisms. It is very difficult to use it to determine the anatomical structure.

Other Questions
4. Which is not a physical change associated with aging?muscle mass increaseshair turns grayhearing becomes less sharpwrinkles appear on the face I need help ASAP I shall give brainlyist (idk how to spell) figure out how much A cand hold and how much B can hold Can someone help me this question? Lolita, a Mexican business woman, came to Redmond Washington to negotiate a business deal with Microsoft. Lolita, assuming business was formal, dressed in a formal suit, nylons, and high heels. She met with the Vice President of Worldwide Sales at Microsoft, Kevin Johnson, and greeted him with, "Good morning Vice President Johnson." Kevin was dressed in jeans and sneakers and addressed Lolita with, "Hello Lolita, nice to finally meet you in person." Lolita was offended by this greeting. This example illustrates which assumption about intercultural communication? The price of a gallon milk was $2.65 the price rose why dollars after the last hurricane then the price dropped $.15 and later Rosie came by five cents which expression represents the current price of milk Constructive interference occurs when the compression of one wave meetsup with the compression of a second wave.A. TrueB. False Alice was flying a kite when a gust of wind caught the kite in a tree. Alice is standing 10 feet from the base of thetree, looking up at her kite at an angle of 25. If Alice is 5 feet tall, approximately how high is the kite off of theground?A4.66B 9.66C 21.45D 9.23 If the circumference of a circle is 484 cm, what is the area and diameter Can someone help please?? Researchers recorded that a certain bacteria population declined from 750,000 to 250 in 48 hours after the administration of medication. At this rate of decay, how many bacteria will there be in 8 hours? 3 situaciones en las que se presenta el acoso o bullying en la escuela Which of the following is not an example of a "lag" that diminishes the potential impact of the use of fiscal policy? a. the recessionary lag b. the data lag c. the legislative lag d. the transmission lag name a commonly underconsumed nutrient. then describe a longterm consequence of poor diet (-1/4 - 1/2) (-4/7) 1. Use limit comparison test to determine whether the series converges or diverges: [infinity]_n=1 n^2 + 1 / 2n^3 - 1 2. Use limit comparison test to determine whether the series converges or diverges: [infinity]_n = 1 n / n^5 + 53. Use direct comparison test to determine whether the series converges or diverges: [infinity]_n = 1 4 + 3^n / 2^n Which shows the fractions in order from greatest to least?A.5/10,1/4,3/4,5/7B. 3/4,5/7,5/10, 1/4C. 5/10,5/7,3/4,1/4D.1/4, 3/4, 5/7,5/10 If 10,000 J of work was done to raise a 225 kg box, how high was the box raised? What does it mean to have a true friend (which I need) Ria is an Indian student who was admitted to a US university. Her annual tuition is $42,000. She has to pay her tuition fees in US dollars. She needs to calculate how many Indian rupees she will need to buy one dollar. The dollar to rupee exchange rate is 63.76 and rupee to dollar exchange rate is 0.015. How many Indian rupees will Ria need to buy one dollar?A. 50.00 rupeesB. 56.00 rupeesC. 63.76 rupeesD. 76.63 rupees What is Keq for the reaction 2HCl(9) = H2(g) + Cl2(g)?