Explain the concept of natural selection using moths as an example.

Answers

Answer 1
Over time moths have changed colours because of natural selection. natural selection is when something is more suited to its surroundings
Moths used to come in two colours black a greyish white the black survived as as the time the factory smokes would be black and would Change the environment colour, the trees turn me would get black from that smoke so the black moths could blend into them while the white ones could be seen and eaten

Related Questions

Humans may have Rh blood or Rh- blood. A person who is Rh (R) has a certain type of protein on the red blood cells. A person who is Rh- (r) does not have this particular protein. In humans, Rh dominates Rh-. Normal insulin (I) production dominates abnormal insulin production (i) (diabetes). If both parents are heterozygous for both Rh and normal insulin production, what phenotypes would they produce in their offspring

Answers

Answer:

- Rh, normal insulin

- Rh, no insulin

- Rh-, normal insulin

- Rh-, no insulin.

Explanation:

This question involves two genes; one coding for Rhesus factor and insulin product. The allele for Rh blood and normal insulin dominates that of Rh- and no insulin.

According to this question, if both parents are heterozygous for both Rh and normal insulin production and cross, i.e. RrIi × RrIi, the following phenotype of offsprings will be produced (see punnet square):

- Rh, normal insulin (R_I_)

- Rh, no insulin (R_ii)

- Rh-, normal insulin (rrI_)

- Rh-, no insulin (rrii)

What type of sugar is in the dna structure of a pinworm?

Answers

Answer:

Espero te sirva

Explanation:

Coronita

True of False - Acne is a skin disorder/disease that affects the integumentary system.

Answers

Answer:

True

Explanation:

clogged skin cells

PLS ANSWER FAST WILL GIVE BRINLY!!!




explain how soil characteristics affect erosion and deposition

Answers

Answer:

Waves lead to the weathering of landforms, like sea arches. Snow and ice will be a common form of degradation and deposition. When snow batteries grow up, glaciers can form, which are great masses of ice that can move.

Explanation:

Waves lead to the weathering of landforms, like sea arches. Snow and ice will be a common form of degradation and deposition. When snow batteries grow up, glaciers can form, which are great masses of ice that can move.

Erosion is the process by which natural forces move weathered rock and soil from one place to another. Gravity, running water, glaciers, waves, and wind all cause erosion. The material moved by erosion is sediment. Deposition occurs when the agents (wind or water) of erosion lay down sediment.

Counting three rings is an example of which type of dating

A. Radioactive
B. Correlative
C. Incremental
D. Varve

This is for Earth Science.

Answers

The answer is C: Incremental

You are working with a mixed population of cells that includes some cells expressing CD95 on their surfaces. Design an experimental protocol using Fluorescence-Activated Cell Sorting (FACS) to determine how many CD95-expressing cells are dividing at any given time.

Answers

Answer:

Fluorescence-Activated Cell Sorting or FACS is a method that allows us to sort out different cell types on the basis of fluorescence emitted by cell membrane components bound compounds.

In the case of CD95 integral protein which is known for highly glycosylated, if use antibodies against cells with CD95 marker, will not identify glycans and can’t be targeted by antibodies as antibodies only recognize protein structures.

Therefore, two different proteins should be used in order to get the correct sorting of cells. One of these would bind to these glycosylations, and the other would be antibodies (with a fluorescent tag) against first.

explain why the use of blood type for peternity testing is not conclusive​

Answers

Answer:

Although blood group studies cannot be used to prove paternity, they can provide unequivocal evidence that a male is not the father of a particular child. Since the red cell antigens are inherited as dominant traits, a child cannot have a blood group antigen that is not present in one or both parents.

hope it helps

Explanation:

Although blood group studies cannot be used to prove paternity, they can provide unequivocal evidence that a male is not the father of a particular child. Since the red cell antigens are inherited as dominant traits, a child cannot have a blood group antigen that is not present in one or both parents.

How did Earth’s first atmosphere form?

Answers

Answer:

It formed from hot mix of gases and solids.

Explanation:

In the beginning "Earth" (wasn't named yet) was just molten. As it started to cool down, an atmosphere waas formed from gases from volcanoes. It contained methane, hydrogen sulfide, and A LOT of Carbon Dioxide

Gases and solids. The earth is mostly made to out of that.

what macromolecule should he load up on during dinner to ensure that he has enough energy for the big game?

Answers

Answer:

Carbohydrates and protein are typically the two macromolecules that are used depending on the type of sport.

Explanation:

Can someone help me with this I am confused

Answers

Answer:

ampltude

Explanation:

because the wave is amputating make me brainliest

Any molecule of large size and high molecular weight, such as a protein or starch, is known as a _________?

Answers

Answer:

Macromolecule

Explanation:

The answer to this question is the term Macromolecule. A macromolecule is termin biology and chemistry that is composed of many / thousands of atoms which is considered as a large / huge molecule.

Which materials are moved by runoff?

Answers

Answer: Gravity causes the water to flow downhill. As the runoff flows, it may pick up loose material. These materials may include bits of soil and sand. It is carried off by this running water across the surface of the land.

hi , guys
who will win icc world test championship final
•india
•new Zealand​

Answers

Answer:

•new Zealand

yeah i'm sure

Which is the main function of carbohydrates in the body?

Answers

Answer:

provide energy to the body

Explanation:

Answer:

Carbohydrates' main function is :

They provide energy to our body.

They also help in maintaining blood glucose levels.

The abbreviation __________ is a measurement of acidity derived from the concentration of H+.

Answers

Answer:

The abbreviation pH is a measurement of acidity derived from the concentration of H+.

The animal is in the sky and he has a big ear

describe how the body maintain the level of glucose in the blood while a person goes without food​

Answers

Answer:

the body has glucagon and insulin, glucagon tells the body to release more glucose whenever glucose levels are low and insulin feels the glucose to the body, reducing glucose levels

Explanation: pretty much it

Which statement best describes evolution in a population?

Answers

Answer:

D.

Explanation:

we learned about this in living environment! for example: humans used to have tails but the humans without tails offspringed with the ones with tails causing the genetics to take over making different traits appear in offspring. Therefor, the answer is D.

Answer:

D

Explanation:

Question 1 please help

Answers

The answer should be D

What could a human living now and a dinosaur living millions of years ago
have in common?
A. They have the exact same DNA.
B. They eat the same things.
C. They need the same amount of energy.
D. They have shared matter.

Answers

Answer:

D

Explanation:

What are the names of the Sun’s layers described in columns A, B, and C?

Answers

Answer:

A Photosphere,

B Chromosphere,

C Corona

Explanation:

i hope this is related or helpful to your answer^^(ノ◕ヮ◕)ノ*:・゚✧   o(*°▽°*)o

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If you breathe heavily on a plant, does that increase the rate of photosynthesis?

Answers

Answer:

no

Explanation:

they absorb our oxygen by the wind that blows so they can keep alive

Which of the following would eat a hamburger with lettuce on it?
A) carnivore

B) detritivore

C) herbivore

D) omnivore

Answers

The answer is omnivore

An Omnivore would eat a hamburger (animal) with lettce (plant) on it. Therefore option (D) is correct.

What do you mean by Omnivore ?



An animal classified as an omnivore consumes both vegetation and other animals. Some omnivores, such as carnivores that consume herbivores and other omnivores, will hunt and consume their meal. Some individuals are scavengers and will consume dead things. Many people eat eggs that belong to other species.

Not all types of plants are consumed by omnivores. Omnivores, unlike herbivores, are unable to digest some components of grains or other non-fruit-producing plants. However, they are able to eat fruits and vegetables. In this simulation, some of the insect omnivores are pollinators, which are crucial to the life cycle of several plant species.


Therefore, omnivore is the correct option (D) among other options.

Learn more about omnivores, here:
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g Knowing if a bacterium is Gram-positive or Gram-negative is important in medicine because it tells us what type of antibiotic will be used (e.g., penicillin for Gram-positive bacteria and mycins, like streptomycin, for Gram-negative bacteria). Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a True b False

Answers

Answer:

This is true.

Explanation:

Knowing whether a bacteria is gram positive or negative will help to narrow down the types of pathogen it could be and will determine which antibiotics will be effective against it.

Knowing whether a bacteria is gram positive or gram negative will help to understand the kind of infection it may cause and thus help in determining the kind of antibiotic it needs.

What are gram-positive and gram-negative bacteria?

The bacteria that have a thick layer of peptidoglycan but no outer lipid membrane are called Gram-positive bacteria. The bacteria that have a thin layer of peptidoglycan and an outer lipid membrane are called gram-negative bacteria.

Gram-positive bacteria do not have an outer lipid membrane and hence they retain the crystal violet in the thick peptidoglycan during gram staining and it is fixed by iodine.

The outer lipid membrane that is possessed by the Gram-negative bacteria does not allow them to retain the crystal violet and hence only the counterstain safranin is visible in the gram staining method.

The technique of Gram staining was developed by the bacteriologist Hans Christian Gram in 1884. While this method cannot tell the specific strain of a bacteria, it can be used as a quick and easy way for narrowing down the basic criteria of distinguishing the bacteria among the two main groups.

Therefore, knowing whether a bacteria is gram positive or gram negative will help to understand the kind of infection it may cause and thus help in determining the kind of antibiotic it needs.

Read more about types of bacteria, here

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I need someone who studies biology and genetics.

Is a pig crossed with a chimp possible, I just read an article about this and the person who had the idea was someone with the last name MCkarther PH.D. it made the news.

Answers

Answer:

The cross between two different species is called hybridization. The truth is that, for hybridization to occur, the species in question must have a certain kinship with each other, that is, they must belong to the same family of animals. An example is the cross between tigers and lions, pigs and wild boars, donkeys and donkeys, etc. Now, if there is no such familiarity between species, the truth is that hybridization will not be possible, which is the case of pigs and chimpanzees with each other.

All the following stages must occur for a woman to get pregnant. However, after which stage can a woman be described as pregnant?

Answers

Answer:   The legislation repeatedly refers to that point as "20 weeks after fertilization." Medically, however, a pregnancy is generally "dated" from "gestation," defined as the time of the woman's last menstrual period, because that is a date most women can pinpoint.

In order to be classified as a green plant, an organism should be eukaryotic, have double-membraned chloroplasts, cell walls, and go through the process of _______.

Answers

Answer:

photosynthesis

Explanation:

plants are the only living organisms that can prepare their own food

1pt Which organism gets energy from another organism?
O A. an oak tree
O B. algae
O C. a mushroom
OD. a rabbit

Answers

Answer:

algae

Explanation:

I think it’s b bc I did this in class and i got it right

how do organisms reproduce asexually

Answers

Answer:

my cloning all the type of cells the animal has

Explanation:

A roller coaster at the top of a hill JUST BEFORE it goes over the edge is an
example of
Energy ?
1.)Potential
2.)Kinetic

Answers

Answer: A roller coaster at the top of a hill JUST BEFORE it goes over the edge is an example of potential energy.

Explanation:

An energy that is acquired by an object due to its motion is called kinetic energy.

An energy that is acquired by an object due to its position is called potential energy.

For example, when a roller coaster at the top of a hill JUST BEFORE it goes over the edge has only potential energy because it is not in motion.

The energy present in the roller coaster is due to its position that is being at the top of a hill.

Thus, we can conclude that a roller coaster at the top of a hill JUST BEFORE it goes over the edge is an example of potential energy.

What happens during meiosis II?
O A. A total of four daughter cells form.
B. DNA double to produce sister chromatids.
C. Tetrads form at the center of a cell.
D. Two diploid cells are produced.

Answers

Answer: I don't know what the other guy is talking about but the answer is A. A total of four daughter cells form.

During meiosis II, the process of cell division that follows meiosis I, a total of four daughter cells form that are haploid in form and present in option A as the daughter cells are called as gametes here.

What is meiosis?

Meiosis is a type of cell division that results in the production of haploid cells from a diploid cell, and during meiosis, two rounds of cell division occur, referred to as meiosis I and meiosis II, and in meiosis I, the homologous chromosomes pair up and exchange genetic material in a process called crossing over. In meiosis II, each haploid daughter cell produced in meiosis I divides again, and the sister chromatids, which are identical copies of the same chromosome, separate from each other.

Hence, during meiosis II, the process of cell division that follows meiosis I, a total of four daughter cells form that are haploid in form and present in option A.

Learn more about meiosis here.

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