In the Science Olympiad, what is the main branch of science to study?

Answers

Answer 1
There is no main branch of science to study. The changing nature of genetics, earth science, chemistry, anatomy, physics, geology, mechanical engineering and technology are equally important in the Science Olympiad.
Answer 2

Answer:

Well, so far there are three branches of Science namely;

Earth SciencePhysical ScienceLife Science


Related Questions

GOLGI APPARATUS IS THE IMPORTANT SITE OF FORMATION OF____________& ______________​

Answers

Glycoproteins and Glycolipids.

GOLGI APPARATUS IS THE IMPORTANT SITE OF FORMATION OF GLYCOPROTEINS & GLYCOLIPIDS.

What is the metric unit for mass?
Meters
Kilograms
Pounds
Matter

Answers

Answer:

Kilograms is the metric unit for mass.

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Answer: the answer is kilo grams because people mesure the amount of mass with kilograms if you were to the amount of mass in a water bottle you would measure with kilo grams

hopefully this helps you out :) and please mark me brainiest.

The locus B on the X chromosome of a malaria-carrying mosquito shows a 49% recombination rate with respect to the locus M. Since a recombination rate of 50% is essentially indistinguishable from independent assortment, you might be tempted to look for a locus that falls between B and M. Before you decide to do all that work, you run a chi square test to determine the P value of your experiment.

Required:
What range of P values would tell you that you should accept the conclusion that locus B and locus M are, indeed, 49mu apart and that another locus is not necessary?

Answers

Answer:

The correct answer is - P = 0.45

Explanation:

The Chi-square test is a test that determines the assorted genes independently. Here p-values used to make conclusions in significance testing.

If the p value is less than the significance level we expect or choose, then this null hypothesis is rejected in favor of the alternative hypothesis. It p value is greater than or equal to the significance level, then we fail to reject the null hypothesis.

So in this case, as the recombination rate is 49% so the p value which satisfies the conclusion will be around 0.45 and values near to it.

Question Mode Fill in the Blank Question Fill in the blank question. In cells that contain a nucleus, the DNA is divided into multiple linear chromosomes which are organized into a complex structure called

Answers

Answer:

The correct answer is - chromatin.

Explanation:

Chromatin is a part within a chromosome consisting of DNA and protein. The DNA carries the cell's genetic instructions and these are complex structures present in multiple linear chromosomes.

The major proteins in chromatin are histones, which help package the DNA in a compact form that fits in the cell nucleus.

Which of the following statements about eutrophication is TRUE?
a) Eutrophic bodies of water are characterized by clear water that is relatively free of algae. •
b) Climate change is expected to worsen eutrophication because many phytoplankton grow better in warm water
c) Eutrophication is typically driven by natural processes like rock weathering and nitrogen fixation
d) Eutrophication can harm fish and other aquatic species but does not cause health problems for humans

Answers

Answer:

c) eutrophication is typically driven by natural processes like rock weathering and nitrogen fixation.eutrophication happens when too much nitrogen enriches the soil, causing excess growth of plants and algea.

I hope this helps

When nitrogen from fertilizers seeps into soil, it frequently fosters weed growth rather than the development of native plants. The excess of nutrients caused by nitrogen washing into streams is known as eutrophication. Thus, option C is correct.

What best define about eutrophication?

A surplus of nutrients in water, primarily nitrogen and phosphorus, causes a process called eutrophication. By consuming the nutrients, algae flourish, proliferate, and tint the water green.

Algae blooms can have an unpleasant odor, restrict sunlight, and in some circumstances even produce toxins.

The process of eutrophication occurs when a body of water receives an excessive amount of nutrients, which increases the growth of algae and macrophytes. It causes water bodies' dissolved oxygen levels to drop and their water quality to deteriorate.

Therefore, Eutrophication is typically driven by natural processes like rock weathering and nitrogen fixation.

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What is the correct order of amino acid if the sequence of bases on DNA were as follows: C-C-T-C-G-A-T-T-C-A-T-G
glycine, alanine, lysine, tyrosine

2)

alanine, proline, lysine, tyrosine

3)

valine, aspartate, glycine, proline

4)

aspartate, glycine, serine, valine

Answers

Answer:

it should be G-G-A-G-C-T-A-A-G-T-G-C

Explanation:

A=T

C=G

think of them as opposites. invert them and you'll have the answer (its easier if you write the answer right underneath)

The amino acid sequence should be G-G-A-G-C-T-A-A-G-T-G-C

G-G-A: glycine

G-C-T: alanine

A-A-G: lysine

T-G-C:  tyrosine

What are amino acids?

Amino acids are molecules that combine to form proteins. Amino acids and proteins are the building blocks of life.

The nucleotide triplet that encodes an amino acid is called a codon. Each group of three nucleotides encodes one amino acid. There are 64 combinations of 4 nucleotides taken three at a time and only 20 amino acids, the code is degenerate (more than one codon per amino acid, in most cases).

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the different between microspores and pollen grain

Answers

The key difference between microspore and pollen grain is that microspore is the small spore that develops into the male gametophyte in plants while pollen grain is the small grain that contains the male gametophyte.

Exchange of gases in plants occur through:
(A): Stomata.
(B):Lenticels.
(C):Root surface.
(D):Choloroplast.

(1)A,B and D
(2)A,B,CandD
(3)AandC
(4)A,BandC

Answers

Answer:

(A): through the stomata

If the inner membrane of mitochondria was not folded, how would it affect the organism?

Answers

Answer:

There wouldn't be enough surface area for the electron transport chain.

what the person above or below me said

Please help me with this.

Answers

Answer:

D

Explanation:

Gene pool is the total genetic diversity within a population or species

Answer:

D

Explanation:

hope it helps.

PLEASE HELP ASAP PLEASE FAST

Answers

Answer:

D

Explanation:

the water passes through the semi permeable membrane


a. Which of the following animals does not have constant body temperature? 1) squirrel 10) crocodile iil) bird iv) human being b.​

Answers

answer: crocodile

Birds and mammals do have constant temperature s ....squiral and human being are mammals.

my answer is crocodile

Explanation:

hope this helps

Lainey is looking for a new apartment and her realtor keeps calling her with new listings. The calls only take a few minutes, but a few minutes here and there are really starting to add up. She's having trouble concentrating on her work. What should Lainey do? a) Tell her realtor she can only receive text messages O b) Limit the time spent on each call O c) Turn off her phone until she is on a break O di Call her realtor back when customers won't see her on the phone

Answers

Answer:

c) Turn off her phone until she is on a break

Explanation:

If she does option "a" then her phone will still keep ringing with text message alerts. Option " b" will still be consuming her work time and option "d" can't be because it'll be too late by then so only option c makes sense.

A geneticist finds that a strain of bacteria to produces a non-functional sigma factor. Which among the following steps in transcription would most likely be first affected?

A.Assembly of RNAP onto the DNA strand

B.Identification and binding of RNAP on to the promoter sequence

C.Conversion of open initiation complex to closed initiation complex

D.Synthesis of RNA after the formation of open initiation complex

Answers

Answer:

The correct answer is - B. Identification and binding of RNAP onto the promoter sequence.

Explanation:

Bacterial RNA polymerases have subunits known as Sigma factors responsible for the identification and specificity of promoter binding of RNAP and regulate the efficiency of RNA synthesis during transcription is initiated.

These bacteria producing the nonfunctional subunits of RNA polymerase or sigma factor will be unable to identify and tightly bind to promoter elements that are RNAP.

Which inherited characteristic will this toucan pass on to its offspring?
I am really bad at bio and brainly has helped me a lot!!!!!

Answers

Answer:

B. Black fur

Explanation:

The last two options are normal to a bird.

Answer:

A colorful beak

Explanation:

got it right on my quiz

hope this helped now I peace out ✌

Researchers note that a plant closes its stomata on a hot, dry, windy day. What statement describes the plant response to these
conditions?
A)
The stomatal closings and the environmental conditions are unrelated for this plant.
B)
The stomatal closings and the environmental conditions are unrelated for
this plant.
Water loss and water stress is highest on hot, dry, windy days, so the plant
closes stomata to conserve water.
Hot, dry, windy days are not conducive to pollen spread, so the plant closes
its stomata to prevent pollination.
Photosynthesis is decreased on hot, dry, windy days, so the plant closes its
stomata to prevent carbon dioxide diffusion.
a
D)

Answers

Answer:

It is B

Explanation:

i just took it

If a plant closes its stomata on a hot, dry, and windy day, the plant response to these conditions is water loss and water stress is highest on hot, dry, windy days. So, the plant closes its stomata to conserve water.

What do you mean by Stomata?

Stomata are the tiny pores present on the surface of the leaves. A huge amount of gaseous exchange may take place in the leaves through these pores for the purpose of photosynthesis.

During photosynthesis, these stomatal pores take carbon dioxide and water is gradually lost, in order to prevent this water loss in hot and humid conditions, the plant closes its stomata.

Therefore, if a plant closes its stomata on a hot, dry, and windy day, the plant response to these conditions is water loss and water stress is highest on hot, dry, windy days. So, the plant closes its stomata to conserve water.

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BLEACH ANSWER THIS QUESTION!!!


ABOUT 70% of total Global carbon is found in
1) Ocean
2) Forest
3) Grasslands
4) Agroecosystems​

Answers

Answer:

1) Ocean

Explanation:

HOPE IT HELPS YOU

Explain how a bottleneck event can enrich recessive traits in the genetics of a population.

Answers

Answer

A bottleneck event severely reduces the fraction of a species able to pass on their genes to offspring. Any once rare recessive traits present in the surviving breeding population are passed to a larger fraction of the total population of offspring, thereby enriching those recessive traits in the total gene pool .

Bottleneck events can limit variation if the dominant allele population gets wiped out for any reason and the recessive allele can appear to be in the majority however this does not shows the actual makeup of the population.

What is bottle neck effect?

The bottleneck effect is defined as a reduction and subsequent increase in a population's size affects the distribution of genetic variation among its individuals.

Examples of bottle neck effect  is when the northern elephant seals have reduced genetic variation likely because of a population bottleneck humans imposed on them in the 1890s. Hunting reduced their population size to as few as 20 individuals at the end of the 19th century.

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is the citric acid cycle the same thing as fermentation​

Answers

Answer:basically

Explanation:

no because the net yields of ATP, NADH and FADH2 during glycolysis, pyruvate oxidation and the citric acid cycle. ... In the absence of oxygen, pyruvate undergoes fermentation (either ethanol or lactate, depending on the organism). Fermentation does not generate any additional energy, however, NAD+ is regenerated.

Celluose is a type of
1 lipid
2 carbohydrate
3 protein
4 grass

Answers

Answer:

cellulose is a type of carbohydrate. hope it help you.

Answer:

2.Carbohydrate

Explanation:

Thank you✌️❣️✌️

6 points about carnivorous​

Answers

Answer:

a carnivorous is a plaant and animal that eats the flesh of animal.

OPEN ENDED QUESTION
Why should you NOT drink seawater even
in extreme survival situations? Please
use at least 3 vocabulary words from the
video.

Answers

Answer:

sea water has lot of salt which is dangerous to human health

Explanation:

i don't seem to see any video.i which I could answer your questions

human kidneys can only make pee (urine) that is less salty than sea water, so, to get rid of all the salt you drank you need to urinate more than you drank. eventually you'll die from dehydration.

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Muscle weakness is associated with Vit A/ Vit E/ Vit K/ Protein deficiency

Answers

Sorry if it wrong but I think it is Nerves, or blood vessels

Answer:

Low vitamin E levels may result in Muscle weakness: for the central nervous system, vitamin E is vital. It is one of the major antioxidants in the body and a shortage causes oxidative stress that can lead to weakening in muscles.

Explanation:

The body needs to work with vitamin E and become a necessary vitamin. It is fat-soluble, thus it has to be effectively absorbed in fat from the food. Before being released to the bloodstream for usage, vitamin E is mostly kept in the liver.

The deficiency is unusual and usually caused by an understatement. There are also modest levels of preterm newborns.

Eight kinds of vitamins exist. A blood test allows a physician to know how much a person has of an alpha-tocopherol form. Use this information to establish if the total vitamin E level of a person is present.

A standard level is typically between 5.5 and 17 milligrams (mg/L) per litre. For premature infants and youngsters under 17 years, the typical range may be different. The Normal scope may also be somewhat different amongst laboratories.

If an adult has less than 4 mg/L of vitamin E in his or her blood, supplementation is usually necessary.

White Leaf Disease is a devastating disease that
affects sugar cane crops in Thailand and has become a
major issue for farmers. The disease starts with a white
line forming in the center of the sugar cane's leaves,
which can change in size and shape as it develops.The sugar cane's new leaves will become increasingly whiter, often having stunted growth, and resulting in the sugar cane being less productive than the non-
infected plants, Scientists are trying to determine
what organelle must be damaged to produce the
observed results,

Answers

White leaf disease is caused by phytoplasma. The disease infects the leaves and create white spots in them.

The farmers in Thailand are facing this issue with sugarcane crops. The organisms infect phloem tissues in sugar cane and cause the leaves to turn white.

The size and shape can change as sometimes there are fine white lines created while sometime there are white spots.

Scientists are trying to deal with such disease and an spray of liquid copper has been found beneficial to treat this disease. The white spot fungus stops to spread with the spray.

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When is a hypothesis considered scientific?

Answers

A hypothesis is considered scientific if it has something that can be supported or refuted through carefully crafted experimentation or observation

discuss the reaction in tricarboxylic acid cycle​

Answers

The tricarboxylic acid cycle​ also known as the Kreb's cycle consists of eight cycle wherein a molecule of acetylCoA is used to produce three NADH, one FADH2 and one GTP/ATP molecule.

What is the tricarboxylic acid cycle?

The tricarboxylic acid cycle is a sequence of reactions in which acetylCoA molecules from the glycolytic pathway are used to produce the reducing equivalents NADH ad FADH2 which are used to produce ATP in the electron transport chain.

The tricarboxylic acid cycle​ also known as the Kreb's cycle consists of eight cycle wherein a molecule of acetylCoA is used to produce three NADH, one FADH2 and one GTP molecule.

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What is gylcosylation

Answers

Glycosylation is the reaction in which a carbohydrate, i.e. a glycosyl donor, is attached to a hydroxyl or other functional group of another molecule in order to form a glycoconjugate. In biology, glycosylation usually refers to an enzyme-catalysed reaction, whereas glycation may refer to a non-enzymatic reaction.

The answer is:

Glycosylation is a biochemical process where a glycan attaches to a protein, a lipid, or other organic molecule, especially through the catalytic action of certain enzymes.

Unlike skeletal muscle, the muscle cells of the heart (called "cardiomyocytes") metabolize very little glucose, relying almost exclusively on metabolism of fatty acids for their energy. Which of the following statements are likely to be true of cardiomyocytes, but NOT skeletal myocytes? (select two answers)

a. low levels of glycogen storage, even when blood glucose is high
b. high levels of glycogen storage, even when blood glucose is low
c. low lactate production, even at high activity
d. high lactate production, even at low activity
e. many mitochondria compared to other cells
f. few mitochondria compared to other cells

Answers

Answer: A. low levels of glycogen storage, even when blood glucose is high.

C. low lactate production, even at high activity.

Explanation:

Cardiomyocytes are also known as the myocardiocytes. They are the cells which makes up make up the muscle if the heart. They're responsible for the generation of the contractile force in the heart which helps in the pumping if blood.

From the options given, the statements that are likely to be true of cardiomyocytes, but not of skeletal myocytes include:

• low levels of glycogen storage, even when blood glucose is high.

• low lactate production, even at high activity.

Answer:

The answer is A and C

Explanation:

Since cardiomyocytes are dependent on fatty acids, they rely on oxidative phosphorylation to generate energy, and consume very little glucose. Due to this, they have very low need for fermentation of pyruvate. In fact, they can absorb lactate generated by skeletal myocytes and erythrocytes and oxidize it for additional energy. Another consequence of this metabolism is that cardiomyocytes store little or no glucose as glycogen.

Skeletal myocytes and cardiomyocytes both have high energy needs and thus have more mitochondria than other cells. Cardiomyocytes have an even greater density of mitochondria than skeletal myocytes because they depend almost entirely on oxidative phosphorylation for their energy needs. This dependence on oxidative phosphorylation also explains the extraordinary sensitivity of cardiac muscle to hypoxic (low-oxygen) events. Without oxygen, cardiomyocytes rapidly run out of energy and can quickly die.

Which properties of protists make it difficult to group them in any other group?

Answers

Answer:

the first one

Explanation:

hahahaha

What was the name of your fish sample, according to the restaurant menu?
Types of Sashimi (slice of raw fish) listed on the restaurant menu:
1. Escolar – Super white tuna
2. Maguro – Big eye tuna
3. Hamachi – Yellowtail
4. Tai – Red snapper
5. Nama Sake – Salmon
6. Saba – Mackerel Fish

Answers

normally, yellowtail and salmon is served as sashimi but im not sure I don't really get the question lol

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