Which graph represents selection that may lead to reduced variation in a population?
A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The original population and population after selection have similar curves, but the original population peaks before the population after selection.
A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The population after selection increases, decreases, increases, and then decreases again. The original population increases at the point that the original population drops.
A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The original population peaks at the same time as the population after selection but the population after selection peaks higher and at a more rapid speed.
A graph has trait value on the horizontal axis and proportion of individuals on the vertical axis. The original population and population after selection have similar curves but the original population is slightly higher at all points.

Answers

Answer 1

Answer:

A graph has trait value on the horizontal axis and population of ... selection have similar curves, but the original population peaks

Answer 2

Answer:   graph B

Explanation:   :)


Related Questions

HELP ASAP PLEASE HELP FAST

Answers

I DONT HAVE THE ANSWER BUT GOOD LUCK

Amoeba sisters video recap Biomagnification

Answers

I suggest you watch the Amoeba Sisters video again, 1-2x and take notes.

Biomagnification is when toxins / heavy metal are present in small amounts in fish, but accumulate as you move into higher trophic levels. This is one reason why it can be toxic for humans to eat tertiary or quaternary consumers, such as swordfish, shark, etc.

Biomagnification refers to the presence of higher concentration of chemical toxins as a result of the accumulation of toxins in organisms.

What is biomagnigication?

Biomagnification is best explained as a condition in which the chemical concentration of a toxin is amplified in an organism compared to the environment in which the organism is found.

Biomagnification usually is observed as one goes higher in the trophic levels of organisms.

For example, chemical pollutant found in water may be present at tolerable levels. However, in organisms, living in the water, the concentration of the pollutant is higher as these organisms accumulate these toxins in their tissues.

Therefore, biomagnification refers to the accumulation of toxins in organisms higher than found in their environment.

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Name one geographic region that has few or no fossil primates and explain why.

Answers

Answer:

Australia

Explanation:

Fossils are preserved remains (or mouldings) of ancient living things which are preserved in sedimentary rocks. Primate fossils are generally found along with other fossils, usually in ancient soils that contain information on the conditions under which they were formed. Primate fossils are generally found in tropical and subtropical regions (which represent the natural habitat in which these species live). Primates never lived in Australia, and therefore no fossil primates from this geographic area have been found.

ATP is considered as nature dehydrating agent.what does it means?show with the help of examples

Answers

Answer:

that man is mental

Which of the following does NOT relate to water?
A. Dehydration damages cells.
B. 70% of the human body.
C. Controls negative feedback mechanisms.
D. Contains and moves ions in and out of cells.

Answers

The answer should be D. Contains and moves ions in and out of cells

The following that does not relate to water is it contains and moves ions in and out of cells. The correct option is D.

What is water?

Water is a chemical compound made up of hydrogen and oxygen. It is a necessary part of life. As our body is made up of 90% of water, and without water, organisms would not survive.

The transport of ions and molecules in and out of the cell is done by the cytoplasm filling in the cell.

Thus, the correct option is D. Contains and moves ions in and out of cells.

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Anyone know this??? Help!!!
Devise an experiment to test the effect of pH on the activity of biological washing powder

Answers

Answer:

I think you are nepali yeah but I don't have your question ❓ answer

Determine the correct energy transformations during the generation of electricity from fossil fuels.
A. Heat to Chemical to Electrical to Kinetic
B. Heat to Kinetic to Electrical to Chemical
C. Kinetic to Chemical to Heat to Electrical
D. Chemical to Heat to Kinetic to Electrical

Answers

Answer:

D. Chemical to heat to kinetic to electrical

The correct energy transformations during the generation of electricity from fossil fuels are D) Chemical to Heat to Kinetic to Electrical

What converts chemical energy to kinetic energy to electrical energy?

Batteries used in torches, computers, toys, and camera cells, are actually made up of chemical cells which convert the chemical energy from the batteries to the electrical energy required for the devices to work well.

What are the main energy types?

Examples of these are light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy, and so on. Each form can be converted or changed into the other forms.

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How do bacteria develop resistance to drugs

Answers

Answer: Bacteria gain resistance to drugs because of mutations (permanent and random changes to their DNA) which means they have changed DNA coding, giving them the ability to resist the drug fighting them off. As a result, they survive and reproduce. Over time, more and more bacteria are generated as the DNA code for resistance is passed on over generations. This results in bacteria having the ability to resist drugs. This is particularly prevalent with antibiotics.

Bacteria develop drug resistance through genetic mutations, acquisition of resistance genes, production of inactivating enzymes, efflux pumps, and biofilm formation.

Bacteria can develop resistance to drugs through several mechanisms. One common way is through genetic mutations or acquisition of resistance genes. Mutations can occur in the bacterial DNA, leading to changes in the target site of the drug, rendering it ineffective. Resistance genes can be transferred between bacteria through horizontal gene transfer, allowing the recipient bacteria to acquire resistance traits.

Another mechanism is the production of enzymes that can inactivate the drug. Bacteria can produce enzymes, such as beta-lactamases, that break down antibiotics like penicillin, preventing them from functioning properly. Bacteria can develop efflux pumps that actively pump out drugs from their cells, reducing their concentration and effectiveness. This mechanism helps bacteria evade the lethal effects of antibiotics. Biofilm formation provides a protective environment for bacteria, making them less susceptible to drugs and immune system attacks.

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The correct question is:

How do bacteria develop resistance to drugs?

b) The chemical equation below summarizes photosynthesis.
Energy (sunlight) + 6 H20 + 6 CO2 - C6H1206 + 6 02
Write a similar chemical equation for cellular respiration. Be sure to include a
description of the form of energy that results from cellular respiration. (3 points)
Pls help me

Answers

Answer:

The chemical equation for cellular respiration would be: C6H12O6 + 6 O2 → 6 CO2 + 6 H2O.

Explanation:

C6H12O6 (1 Glucose molecule) + 6 O2 (6 Oxygen molecules)  → 6 CO2 (6 Carbon dioxide molecules) + 6 H2O (6 Water molecules)

For each of the genotypes (AA,Aa or aa) below determine what the phenotype would be. Purple flowers are dominant to white flowers.

PP_____ Pp_____ pp_____

Answers

Answer:

PP and Pp are purple flowers. pp is white flowers.

Explanation:

Capital P is the dominant gene, while lowercase p is the recessive gene.

HELP ASAP NEED HELPPPPP

Answers

Answer:

insects is a write answer.

Some of the largest mountains in the world, including the Himalayas, occur where

Select one:

a.
two oceanic plates diverge.


b.
two continental plates converge.


c.
an oceanic and a continental plate diverge.


d.
an oceanic and a continental plate converge.

Answers

Answer:

b. two continental plates converse

Read the information below then answer the questions which follow:
To grow, plants require water. They cannot get this water unless it is available in the soil. Plants
obtain water from the soil through their roots. It then passes up the stem and to the leaves and
flowers. The plant does not take all the water available in the soil. Much of the remaining water
evaporates into the surrounding air.
In an experiment, a stem which contained several flowers were placed in a beaker of water
containing red ink.
QUESTION 1
(1 mark)
What is the purpose of the experiment?​

Answers

Answer:

I believe the experiment was too see if the flowers that would grow from the stem would turn out to be red in color. (Which is the reason they put red ink.)

(hope this helped :P)

When thinking about all 4 types of macromolecules discussed, which of the following statements are true? Select all that apply.


Monomers are linked together by hydrolysis.


Monomers are joined together to form functional polymers


Monomers are linked together by dehydration synthesis.


Monomers join together via hydrogen bonds.

Answers

2 and 3

1 is describing the process to separate monomers
2 multiple monomers create polymers
3 removal of water to join monomers
4 they are joined by covalent bonds

In a certain breed of dog, the alleles B and b determine black and brown coats respectively. However, the allele Q of a gene on a separate chromosome is epistatic to the B and b color alleles resulting in a gray coat (q has no effect on color). If animals of genotype B/b ; Q/q are intercrossed, what phenotypic ratio is expected in the progeny

Answers

Answer:

12 gray , 3 black, 1 brown

Explanation:

If Q allele of a gene on a separate chromosomes is epistatic to the B (black) and b (brown) color alleles, in cross between two animals with genotypes BbQq produces 12 gray coat color, 3 black coat color and 1 brown coat color animals.

                                        BbQq      x      BbQq

                                   Gray coat        Gray coat

                   BQ                  Bq                 bQ                 bq

   BQ    BBQQ(gray)  BBQq(gray)   BbQQ(gray)   BbQq(gray)

   Bq     BBQq(gray)   BBqq(Black)  BbQq(gray)   Bbqq(Black)

   bQ     BbQQ(gray)  BbQq(gray)   bbQQ(gray)   bbQq(gray)

   bq     BbQq(Gray)   Bbqq(Black)  bbQq(gray)    bbqq(brown)

So the phenotypic ratio is  Gray : Black : Brown

                                        =      12  :      3   :      1

In crude oil affect eggs and larvae of fish and increase mortality.
O a.
Hydrocarbon
O b.
PAH
O c.
liquid petroleum

Answers

Answer:

its c liquid petroleum 100% surr

which statement describes a process associated with meiosis

Answers

Answer:

homologous chromosomes pair up

Answer:

Haploid cells join to form an organism that has a complete set of chromosomes.

Explanation:

plz give a correct answer for the question how do canine and molar differ​

Answers

Answer:

Canines are the sharp, pointed teeth that sit next to the incisors and look like fangs. Dentists also call them cuspids or eyeteeth. Canines are the longest of all the teeth, and people use them to tear food

Molars are the flat teeth at the rear of the mouth. Each molar typically has four or five cusps. They are used exclusively for crushing and grinding. Wisdom teeth are also called third molars. They erupt from the age of 18 onwards but are often surgically removed.Their function is similar to that of the premolars, to grind, tear, and crush food. Molars have a large flat biting surface which makes them perfect for this job.

Explanation:

Hope it works!!!!

Canine are used to tear and found in front of mortal
Mortal are used to chew

Draw the egg and label it​

Answers

Answer:

What egg?

Explanation:

Answer:

  /’‾‾‾`\

/         \

|           |

\.____./

The structure that hotds two chromosomes together until they separate for cett divisionois




1.chromatid .

2.cytoplasm .

3.chromatin .

4.centromere

Answers

The answer is 4. Centromere

What would be most likely to happen if some of the proteins Ik one of the photo systems were to change shape due to a drop in cell pH?
A. A decrease in the formation of NADPH
B. An increase in the formation of NADP+
C. A decrease in chlorophyll production
D. An increase in sugar production

Answers

Answer:

Option A

Explanation:

If some proteins in one of the photosystems undergo change in their shape due to a drop in pH of cell, they will not perform their activity. Due to this, there will be a decrease in the formation of NADPH ( that is less reduction of NADP due to blockage in the transport of electron).

Describe ways that water pollution occurs. Describe how greenhouse gases contribute to climate change.

Answers

Greenhouse gases are transparent to incoming (short-wave) radiation from the sun but block infrared (long-wave) radiation from leaving the earth's atmosphere. This green house effect traps radiation from the sun and the planet's surface.

explain how the various specialiesed cells are modified to Cary out to their function 20mark​

Answers

Sperm cell; has acrosome containing lytic enzymes; that digest the egg membranes for penetration during fertilization; has a long tail; containing numerous mitochondria; to generate maximum energy for propulsion/swimming in the vaginal fluid after ejaculation; Red blood cells; are flattened, circular/spherical biconcave in shape; to increase the surface area for packaging of haemoglobin; has haemoglobin; that combines with respiratory gases; for transport to and from body tissues; White blood cells; are amoeboid in shape hence able to change shape; to engulf pathogens through phagocytosis; lymphocytes produce antibodies to fight pathogens; Nerve cell; has extensions/dentrites; to receive and send information for sensation; Ciliated epithelial cells; have cilia for propulsion of mucus that traps dust and micro-organisms in the respiratory tract; Muscle cells; elongated, striated and contractile; to bring about movement; Plant cells: Guard cells; bean-shaped; to regulate the size of the stomata allowing gaseous exchange; and control water loss; has chloroplasts with chlorophyll; for photosynthesis; Root hair cell; elongated; thin-walled; with dense cytoplasm for absorption of water and mineral salts; Epidermal cell; thin; for protection of inner tissues from mechanical and micro-organism attack; Palisade cell; contains numerous chloroplasts with chlorophyll; for photosynthesis; elongated; to increase surface area for trapping maximum amounts of light energy; Meristematic cell; thinwalled; with dense cytoplasm; for primary and secondary growth

Which species of gymnosperms has reddish cones and strap like leaves that tear up from the harsh desert conditions?

A. gnetum
B. welwitschia
C. ephedra

Answers

Answer:

welwitschia

Explanation:

Gene X always produces the same mRNA (one splice form) and the same protein in all cells in which it is expressed. The same amounts of gene X mRNA and protein are present in brain, kidney, and heart cells. However, the activity associated with the protein is present only in the heart. Which of the following are possible explanations?

a. A splicing factor necessary for removing all of the primary transcript's introns is present only in the heart.
b. A splicing factor necessary for removing all of the primary transcript's introns is present only in the brain and kidney.
c. Protein X is phosphorylated only in the heart.
d. Protein X is phosphorylated only in the brain and kidney.

Answers

There are two explanations for this phenomenon: phosphorylation of the protein X in the heart activates its function (Option C) or phosphorylation of the protein X in the kidney and the brain deactivates its function (Option D). Therefore, both Option C and Option D are correct.

Phosphorylation is a posttranslational protein modification that is capable of activating or deactivating protein function.

Phosphorylation alters the three-dimensional structure of a protein, thereby modifying its function (i.e., activate or deactivate the target protein).

Phosphorylation occurs at specific amino acids (e.g., serine and threonine residues) of the target protein.

Moreover, mRNA splicing (RNA processing) occurs before the protein state, it is a transcriptional process. This process consists in removing the non-coding regions or 'introns' from pre-mRNA and subsequent joining protein-coding regions or 'exons' to enable the translation of the mRNA into a protein.

In consequence, in this case, it is possible that 1-phosphorylation of the protein X in the heart activates its function, or 2-phosphorylation of the protein X in the kidney and the brain deactivates its function. Therefore, both Option C and Option D are correct.

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According to cell theory, all new cells...
A. must share DNA with existing cells.
B. must eat.
C. come from other cells.

Answers

Answer:

с

Explanation:

all new cells come from other cells

What does a botanist study

Answers

Answer:

Botany is the scientific study of plants—how plants function, what they look like, how they are related to each other, where they grow, how people make use of plants, and how plants evolved.

I HOPE THIS WILL HELP YOU

HAVE A GREAT DAY :)

DNA is referred to as a______, meaning that it has
strands that are______together.

Answers

Answer:

molecule

wound

Explanation:

DNA is the chemical name for molecule. The strands wind together and form a double helix.

The answers should be
1. Molecule

2. Wound

What are the types of honey bee?​

Answers

Answer:

kdjjdndkskkdjckfkfjsjjsjsmslaldjnxjcjc

Match the terms in column B to the descriptions in column A.

Column A:

1. Connects the larynx to the main bronchi
2. Includes terminal and respiratory as subtypes
3. Food passageway posterior to the trachea
4. Covers the glottis during swallowing of food
5. Contains the vocal cords
6. Indentation on the lung where the lung root structures enter and exit
7. Pleural layer lining the walls of the thorax
8. Site from which oxygen enters the pulmonary blood
9. Connects the middle ear to the nasopharynx
10. Pleural layer in contact with the surface of the lung
11. Increases air turbulence in the nasal cavity
12. Separates the oral cavity from the nasal cavity

Column B:
a. alveolus
b. bronchiole
c. conchae
d. epiglottis
e. esophagus
f. hilum
g. larynx
h. palate
i. pharyngotympanic tube
j. parietal pleura
k. trachea
l. visceral pleura

Answers

Answer:

1. Connects the larynx to the main bronchi k. trachea

2. Includes terminal and respiratory as subtypes b. bronchiole

3. Food passageway posterior to the trachea. e. esophagus

4. Covers the glottis during swallowing of food d. epiglottis

5. Contains the vocal cords g. larynx

6. Indentation on the lung where the lung root structures enter and exit f. hilum

7. Pleural layer lining the walls of the thorax j. parietal pleura

8. Site from which oxygen enters the pulmonary blood a. alveolus

9. Connects the middle ear to the nasopharynx. i. pharyngotympanic tube

10. Pleural layer in contact with the surface of the lung l. visceral pleura

11. Increases air turbulence in the nasal cavity c. conchae

12. Separates the oral cavity from the nasal cavity h. palate

Explanation:

1. The trachea is between the main bronchi and the larynx. It has semicircular rings of cartilage. The function of this organ is to conduct the air from the larynx to the primary/main bronchi.

2. After the primary (main), secondary, and tertiary bronchi, the terminal and the respiratory bronchioles come. They also conduct the air towards the alveoli so that the oxygen can enter the blood. The diameter of the bronchi terminal is smaller than the bronchi, and the diameter of the respiratory bronchi is smaller than the previous ones.

3 and 4. The esophagus is not part of the respiratory system. It is a tube that belongs to the digestive system since food has to pass through it to go to the stomach. The esophagus is posterior to the trachea, and the epiglottis closes the entrance to the larynx when we swallow to stop food from going to the lungs.

5. The vocal folds are in the larynx. This one is between the trachea and the pharynx. There are two types of vocal folds, the true and the false vocal folds. Both of them vibrate when air passes through them, allowing us to speak and make different tones.

6. The hilum is the lungs section where the bronchus, the pulmonary artery, and the pulmonary vein enter the lung. It is an indention that is in the middle part of the lungs.

7 and 10. The pleura has two sides, the parietal one and the visceral one. The first one is in contact with the lungs and the second one with the thorax's walls. Between them, there is a space called the pleural cavity. The cavity has fluid that allows the movement of the two pleurae. As a result, the lungs can move and fill with air.

8. After the respiratory bronchioles, we have the alveolar duct. The alveolar ducts lead to alveolar sacs. The alveolar sacs has the alveolus. They are thin walls that are in contact with capillaries. When the air is there, the oxygen passes through the thin walls. Then it goes through the capillaries' walls and into the blood.

9. The pharyngotympanic tube is also known as the Eustachian tube. It connects the middle ear to the nasopharynx. Its function is to regulate the pressure in the ear.

11. The conchae are in the nasal cavity. They are three projections in the nasal cavity, the inferior one, the middle one, and the superior. Their function is to increase the surface of the nasal cavity so that more air can enter with every inspiration. As they are projections, they modify the laminar airflow producing a turbulent flow.

12. The palate is between the nasal cavity and the oral cavity. It has two parts, the soft palate, and the hard palate. The palate helps in the production of certain sounds and divides the nasal cavity from the mouth.

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Evaluate: 2-4 . =100 . -8 . -16 D. 1 16 A firm is making an economic loss of $100,000. This means that: multiple choice 1 the firm should immediately exit the industry. the firm's revenues are less than its opportunity costs. the firm is not making an accounting profit. the firm could increase economic profit if its resources were used in a different way. If a firm is making an economic profit of zero: multiple choice 2 it will have unhappy stockholders. it is not making an accounting profit. the firm should change to a different line of business. it cannot make a higher economic profit by changing how it is using its resources. We have two fractions, 3/4 and 7/6 , and we want to rewrite them so that they have a common denominator (and whole number numerators). What numbers could we use for the denominator? I...the film was gripping, Harry slept from beginning to end Which organelle is responsible for transporting lipids in the cell?A. nucleus B. rough ER C. golgi apparatus D. mitochondrion Snapping fingers or flashing lights to get the attention of a deaf person would be similar to what in hearing cultureO grandly bowingO politely waitingO rudely interruptingO suddenly sneezing Thomas, the Department Head of the meat processing unit of a food manufacturing company, refuses to allow an OSHA (Occupational Safety and Health Administration) compliance inspector to carry out the inspection process. In this scenario, what action can the OSHA inspector take Solve T=L(2+RS) for R PLEASE HELP ME i relly need help In that year I had had time to become aware of the meaning of all my fathers bitter warnings, had discovered the secret of his proudly pursed lips and rigid carriage: I had discovered the weight of white people in the world. I saw that this had been for my ancestors and now would be for me an awful thing to live with and that the bitterness which had helped to kill my father could also kill me.Which best explains this excerpts role in the problem-and-solution structure of the passage?The excerpt presents the solution to the overarching problem in the passage.The excerpt sets up a secondary problem addressed by the passage.The excerpt presents the solution to a secondary problem in the passage.The excerpt sets up the overarching problem addressed by the passage. Each side of a regular polygon is 3.2 cm in length. The perimeter of the polygon is 19.2 cm. How many sides does the polygon have? What is the name of the polygon? Plzzz Im giving a away 25 points Find the reciprocal of 4/5 Why ......you always.....over spilt? I am tired of what you say A are_ crying. B.do_drink 7. To test a new voice feature in a cockpit design a flight simulator was used. The simulator was programmed togive visual readings of flight information, or to give visual and auditory (voice) readings of flight information. Alltest pilots were put through a simulated emergency landing procedure, but were randomly assigned to thevisual, or visual and auditory conditions. Flight experts rated each pilot's performance in the simulator on ascale of 1 (very poor) to 10 (excellent). Answer the following questions. (Short answer type questions) 1. What difficulties do we face if there is no means of transport? Mention any six difficulties. 2. What are the problems of transport in your district? Write some measures to solve them. the roads arenor black topped 3. Make a list of important highways of Nepal and name the places they lin stranim animals, causes several acara Explain about railways and rope ways in Nepal. how will be electric lines of force where intensity of electric field is maximum ?a. widerb. +ve to -vec. narrowd. -ve to +ve What is the verbs and adverbs in this passage please help Find the value of x Helpppppppp pleaseeee