How can natural selection account for the long tongues of butterflies?

Answers

Answer 1
Butterflies with longer tongues have a better chance of survival

Related Questions

consider the following at 8 p.m. a diabetic is found to have a blood pH of 7.33 is Brian tells his diaphragm to contract more frequently so that his breathing rate increases consider how is considering homeostasis is restored what effect would this have on his PH range is hicity and hydrogen ion concentration .​

Answers

Answer:

Considering that homeostasis is restored in the patient, his blood pH range would return to normal levels (7.35-7.45), and his hydrogen ion concentration in the blood would normalize. The effect of normalizing the body by getting rid of excess hydrogen ions is achieved by concentrating these ions into the urine for expulsion, therefore increasing the pH levels of urine.

Medical Disclaimer: The information on this site is for academic purposes only and is not a substitute for professional medical advice.

Explanation:

Acidosis is the condition wherein excessive acid build-up within the body causes the blood pH to become lower than normal (normal pH range 7.35-7.45). This may be due to an excessive loss of bicarbonate in the blood, also known as metabolic acidosis, or due to an impairment in the elimination of carbon dioxide in the blood from poor lung function, also known as respiratory acidosis. The body's natural response to acidosis is to increase the breathing rate to eliminate carbon dioxide in the blood, restoring the natural pH of the body.

In people with diabetes mellitus type I, the lack of insulin causes cells to breakdown fat aside from glucose as an energy source. This process produces ketones as a metabolic by-product for energy but also causes the body to be acidic. This is known as diabetic ketoacidosis.

Scientists can use mutants to study metabolic pathways. These organisms have a mutation in a gene encoding a metabolic pathway enzyme that results in the inactivation of that enzyme. Saccharomyces cerevisiae (a yeast species) mutants are available that grow on fructose, but not glucose. This growth defect results from a mutation in the gene encoding what enzyme?

a. phosphoglycerate kinase
b. enolase
c. pyruvate kinase
d. phostphoglycerate mutase
e. Phosphoglucose isomerase (phosphohexose isomerase or glucose-6-phosphate isomerase)

Answers

Answer:

The correct answer is - e. Phosphoglucose isomerase (phosphohexose isomerase or glucose-6-phosphate isomerase)

Explanation:

Phosphoglucose isomerase (phosphohexose isomerase or glucose-6-phosphate isomerase) is an enzyme that catalyzes the conversion of the glucose-6-phosphate to fructose-6-phosphate or fructose-6-phosphate to glucose-6-phosphate.

In the given question there most likely a mutation that takes place in Phosphoglucose isomerase as it is not able to convert glucose to fructose which is a growth defect.

Which statement describes commensalism?

1.A relationship where one species benefits and the other is not affected.

2.A relationship where both species benefit

3.A relationship where one species benefits and the other is harmed

4.A competition for the same food source

Answers

Answer:

3

Explanation:

commensalism is the third one

when u and the bois take nerf to far

Answers

Answer:

lol hahahaha have a great day and thank u for these free points

Acellus
When the resources in an
environment are at optimum
levels, what can happen?
The population size can grow
B
The population size can decrease
Copyright © 2003 - 2021 Acellus Corporation. All Rights Reserved.

Answers

Answer:

The population size grow /can grow

Answer:

the population size can grow

Explanation:

How many nucleotides equals 1 amino acid ?

Answers

Answer: Three nucleotides

Explanation: Three nucleotides encode an amino acid. Proteins are built from a basic set of 20 amino acids, but there are only four bases. Simple calculations show that a minimum of three bases is required to encode at least 20 amino acids.

A codon is a group of three nucleotides in DNA or RNA that is used to encode genetic information. Each codon represents a particular amino acid or a signal to cease the production of proteins. Thus, there are three nucleotides for every amino acid in the interaction between them.

Here is a more thorough justification:

The genetic code is made up of codons, which are groups of three nucleotides apiece. Four distinct nucleotides—adenine (A), cytosine (C), guanine (G), and thymine (T) in DNA, or uracil (U) in RNA—can be combined to create a total of 64 potential codons (43).

These codons act as informational units that specify the use of particular amino acids while synthesizing proteins.

To know more about nucleotides:

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Match each genetic principle Mendel described to its correct explanation.

This is a matching one. you have to match the lettered to the non lettered.

One trait will mask, or cover up, another trait.

Two alleles fora trait separate during gamete formation.

Alleles for different traits separate independently of one another during gamete formation.

a.
Principle of Independent Assortment

b.
Principle of Dominance

c.
Principle of Segregation

Answers

Answer:

i think it will B,C and A hope it helps

Which completely transformed scientific study?

the Scientific Revolution
the Enlightenment
the Renaissance
the Reformation

Answers

Answer:

Enlightenment

Explanation:

These all transformed scientific study in a huge way, so its hard to answer without context. But the Enlightenment had the largest growth in this area

where is the equator of a cell

Answers

Answer:

Where the cell divides

Explanation:

I think the equator, or equatorial plate, is the midline of the cell where duplicated chromosomes position during mitosis.  

The equator of a cell is where equator divides.

Cell:

Cell is the basic unit of life. There are two types of cell : prokaryotic cell and  eukaryotic cell.  Cell divides by the process of mitosis and meiosis. Mitosis is an equational division and meiosis is  reductional division.

Cell division is important for cell growth and division. Cell division starts at the nucleus. In nucleus there are different chromatin material. Chromatin condensed and form a chromosome.

Cell division starts at the equator of the cell. There are four phases : Prophase, metaphase, anaphase and telophase. During metaphase all the chromosome align at the equator.

Therefore, The equator of a cell is where equator divides.

To learn more about cell, refer to the link:

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Solve the system of equations.
y = 5x +4
y=7x + 6
O (-1,11)
O (-1,-1)
0 (-1,-1)
O (-4,-1)
Which one is it

Answers

O, I hope this helped, and have a good day :)

Answer:

O

Explanation:

Which gland is known as the "master gland" because it sends chemical messages to many other glands?
thyroid gland
thymus gland
pineal gland
pituitary gland

Answers

Answer:

Pituitary gland is known as the master gland

The stomach makes a substance that gives the correct pH for enzyme action. Name this substance.

Answers

Answer:

The stomach produces hydrochloric acid.It kills many harmful microorganisms that might have been swallowed along with the food.The enzymes work best in acidic conditions-at low pH

Hydrochloric acid is an important component of the gastric juice in animal species such as humans. This maintains the pH in the stomach.

What is Hydrochloric acid?

Hydrochloric acid is also known as muriatic acid, it is an aqueous solution of the compound hydrogen chloride. Hydrochloric acid is a colorless solution with a distinctive pungent smell. It is mainly classified as a strong acid. However, it is a component of the gastric acid in the digestive systems of most of the animal species, including humans. Hydrochloric acid is an important component of the digestive system.

Hydrochloric acid (HCl) is a part of the gastric juice. It plays an important role in creating the pH required for pepsin activity and for the maintenance of this pH. Parietal cells in the stomach are responsible for the production of HCl acid by secreting hydrogen and chloride ions separately. When pepsinogen and hydrochloric acid exist together in the gastric juice, pepsin is converted into its active form.

Learn more about Enzyme action here:

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what's "1 syllables & 2 syllables and 3 syllables meaning"

Answers

Answer:

Monosyllabic

Explanation:

Answer:

Hope it helped

Explanation:

1 syllable means monosyllabic

2 syllables means disyllabic

3 syllables means trisyllabic

PLS RATE AS BRAINLIEST ANSWER

One way to get consistent, valid data is to
A. be sure that instruments are calibrated properly.
B. use simple instruments to make measurements.
C. select the best data to place into data tables.
D. make the measurements as quickly as possible.

Answers

A - makes sure the results are close to the actual value

Where does the CO2 come from that is used in the Calvin Cycle?

Answers

Answer:

It comes from the atmosphere and more specifically, cellular respiration.

Explanation:

Answer:

Paul and Jennifer university are stadying

What is aggressive mimicry?

Answers

Aggressive mimicry is a form of mimicry in which predators, parasites or parasitoids share similar signals, using a harmless model, allowing them to avoid being correctly identified by their prey or host. Zoologists have repeatedly compared this strategy to a wolf in sheep's clothing
Aggressive mimicry is a form of mimicry in which predators, parasites or parasitoids share similar signals, using a harmless model, allowing them to avoid being correctly identified by their prey or host. Zoologists have repeatedly compared this strategy to a wolf in sheep's clothing.

Calcium nitrate is a compound commonly used as a plant fertilizer in agriculture and also in

wastewater treatment facilities. Let's suppose you need to prepare a 0.2 molar (0.2 M)

solution of calcium nitrate to spray a crop field. You will need to prepare 500 Liters to have

enough of this solution to spray the entire field. How much calcium nitrate will you need?

Answers

Answer:

16400g

Explanation:

The amount of Calcium nitrate {Ca(NO3)2} that will be needed can be calculated as follows:

Molarity (M) = number of moles (n) ÷ volume (L)

According to this question, molarity = 0.2M, volume = 500L

number of moles = molarity × volume

number of moles (n) = 0.2 × 500

n = 100moles

Using mole = mass/molar mass

Molar mass of Ca(NO3)2 = 40 + {14 + 16(3)}2

= 40 + (14 + 48)2

= 40 + 62(2)

= 40 + 124

= 164g/mol

Mass = mole × molar mass

mass = 100 × 164

mass = 16400g of Ca(NO3)2

Which of the following blood vessels would have the highest blood pressure?

A dilated vessel with high blood volume
A constricted vessel with high blood volume
A dilated vessel with low blood volume
A constricted vessel with low blood volume

Answers

Answer:

a constricted vessel with high blood volume

Explanation:

because the size or area within affected blood vessels is reduced by vasoconstriction. Therefore, the blood flow is often decreased as blood vessel pressure is lower. The pressure or power of blood flow is increased at the same time, which results in higher blood pressure is the force exerted by this.

Which is NOT an advantage of Asexual Reproduction?

enables an organism to spread over an area quickly

reproduce rapidly

mutations can occur

reproduce without a mate​

Answers

Answer:

Reproduction without the male

an earthquake occurs when part of the solid Earth below the surface suddenly _____.

Answers

Answer:

brainliest please

Explanation:

shifts

When an earthquake occurs an area of the crust will move very suddenly and with a great release of energy. The point of the actual rock rupture is called the focus . The focus is usually found far beneath the surface. The point directly above the focus on the surface of the Earth is called the epicenter.

Answer: When an earthquake occurs an area of the crust will move very suddenly and with a great release of energy.

Explanation:

What would you expect to happen to a plant as temperature and precipatiom increases? Write your claim and evidence!!

Answers

Answer:

Both have great effect on plant when increases from a certain limit.

Explanation:

When the temperature falls in the optimum range it has a good effect on plants growth because the rate of photosynthesis is maximum. Precipitation also has a great effect because it provides water that is necessary for the plants. If the temperature increases from a certain limit, it burns plant body and decreases photosynthesis whereas if precipitation increases it causes flood condition which kills the plant due to removal from the soil.

Everyone in Smurfette’s family has light blue skin, which is the dominant trait for body color in her hometown of Smurf Valley. Her family brags that they are a "true bred" or "purebred" line. She recently married a nice boy who has light yellow skin, which is a recessive trait. Create a Punnett square to show the possibilities that would result if Smurfette and her new husband had children.

Answers

Answer:

All their descendants will be heterozygous for the skin color, Bb, expressing blue skin.

Explanation:

Available data:

Smurfette has light blue skinHer family is a "true bred" or "purebred" line.She married a boy who has light yellow skinblue skin is the dominant trait expressed by the B alleleyellow skin is a recessive trait, expressed by the b allele

Cross: Smurfette  x  Husband

Parentals)            BB     x     bb

Gametes)          B   B       b     b

Phenotypes) blue skin     yellow skin

Punnett square)

                       B        B

             b      Bb      Bb

             b      Bb      Bb

F1) 100% of the progeny will be heterozygous for the skin color, Bb

     100% of the progeny will be blue-skinned.

Note: Although the progeny is blue-skinned, they are not true-bred anymore.

PCR is a technique used to copy a target DNA sequence. Researchers often use DNA polymerase from Thermus aquaticus, a bacteria species that lives around hydrothermal vents.

denaturation 94-96 degrees celsius.
elongation 72 degrees celsius
annealing 68 degrees celsius

Which of the following best explains why the polymerase from the species T. aquaticus is often used
for PCR?
A. T. aquaticus polymerase has an optimal temperature of 68°C.
B. T. aquaticus polymerase does not denature at high temperatures.
C. T. aquaticus polymerase can be used more than once without degrading.
D. T. aquaticus polymerase adds nucleotides to both the 3' and 5' ends of DNA.

Answers

Answer:b

Explanation:because I said so

How do genes determine the traits of an organism? Explain in detail.

Answers

Answer:

Im confused on what you mean

Explanation:

A common explanation is that gene is the “basic unit of heredity” which is kind of a useless definition.

A chromosome is a condensed (tightly packed) amount of DNA. A gene is a region of DNA that codes for a protein. These proteins determines your traits.

When a gene is active the protein is transcribed through the the central dogma (dna —> rna —> protein) that protein acts in a signaling pathway that will lead to a specific trait.

Like all valid scientific theories, modern cell theory

Answers

The rest of the sentence is:


builds on the work of earlier scientists

Answer:

builds on the work of earlier scientists

Explanation:

hope it helps



What is the net charge of histidine at pH = pKa2?(pKa1 = 1.8, pKa2 = 6.0, pKa3 = 9.3

Answers

Answer:

The answer is explained in the steps

Explanation:

I

D

K

W

H

A

T

T

H

E

A

N

S

W

E

R

I

S

!

what happens to the field of view when you decrease the magnification power?

Answers

Answer: Increases

Explanation:

Field of view and magnification power are inversely proportional to each other. Decreasing the magnification (zooms things out) which means we can see a lot more of the sample, which means the field of view increases.

Which increases as a population grows?

carrying capacity

competition

available habitat

food supply

Answers

Answer:

B:competition

Explanation:

i had this question

Which living things should you be able to find near you the next time you spot a squirrel?
(PLEASE ANSWER FAST)

Answers

Answer:

Small birds, green plants, snakes, lizards, humans, rodents, fungi, insects.

Explanation:

Squirrels are known to be herbivores. Therefore, they can be found around budding plants and they also feed on the parts of the plants such as their seeds and fruits. Squirrels live in the same environments with humans. At times, they feed on dead rodents, lizards and snakes. They also feed on insects and fungi.

The squirrel belongs to a family of rodents known as the Sciuridae. They are tree-dwelling animals with a good sense of vision.

why do distantly related species in very different places sometimes share similar traits?

Answers

Answer: Distantly related species in very different species in very different places sometimes share similar traits because they evolved similar adaptations to the same environmental conditions in different places.
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