Which of the following is an example of natural selection?
A
Over time, the Earth's crust started to solidify about one-billion years after the
planet was formed.
B
Over time, a species of cricket became green because green crickets were better
able to hide among the leaves.
с
In the winter, as food becomes more scarce, some species of birds fly to new
habitats in the south.
D
In June, the Northern Hemisphere gets more direct sunlight due to the tilt of
Earth's axis as it revolves around the sun.

Answers

Answer 1
The answer is A for natural selection
Answer 2

Answer:

its b

Explanation:

i just did it :)


Related Questions

When does translation of mRNA begin in prokaryotic cells?

Answers

Answer:

during initiation

Explanation:

when an initiator tRNA anticodon recognizes a start codon on mRNA bound to a small ribsomal submit.

Hair analysis may be used to determine all of the following except.
O an assessment of nutritional deficiencies
O a history of the use of drugs and other toxins
where the hair originated, human or other animal
O presence of heavy metals
O hair analysis is helpful to determine all of the above

Answers

Presence of heavy metals

Hair analysis may be used to determine all of the following except the presence of heavy metals. Thus, option C is correct.

What is metal?

A metal has been defined as a material that has to be prepared freshly and polished and fractured that shows that a lustrous look or appearance and it conducts the electricity as well as heat well relatively. The main nature of metal has that they are totally malleable and ductile and these are the properties of matter which is due to metallic bond which lies in between the atoms or the molecules present in the metal.

There are several properties of metal and these properties are the metals have high point of melting, and the metals are good conductor of electricity, as well as they are good conductors of heat also. The metals consist high density and they are malleable and ductile in the nature.

The main nature of metal has that they are totally malleable and ductile and these are the properties of matter which is due to metallic bond which lies in between the atoms or the molecules present in the metal.The metals consist high density and they are malleable and ductile in the nature.

Therefore, Hair analysis may be used to determine all of the following except the presence of heavy metals. Thus, option C is correct.

Learn more about metal here:

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What is Anaerobic respiration?

Answers

Answer:

"Anaerobic respiration is the process of creating energy without the presence of oxygen. Sometimes the body can't supply the muscles with the oxygen it needs to create energy – such as in a sprinting situation."

I hope this helped!

Answer:

The release of a relatively small amount of energy by the breakdown of food substances in the absence of oxygen. Glucose is broken down to release energy in the absence of oxygen, forming lactic acid in muscle tissue, or alcohol plus carbon dioxide in yeast and plants.

Explanation:

Define Physical Properties?

Answers

Answer:

A physical property is any property that is measurable, whose value describes a state of a physical system. The changes in the physical properties of a system can be used to describe its changes between momentary states. Physical properties are often referred to as observables. They are not modal properties.

HI EVERYONE ^_^

Why the ureolytic bacteria produce CaCO3?

Answers

Answer:

Ureolytic bacteria hydrolyze urea to generate ATP by the efflux of ammonium ions through ATP-synthase, producing carbonate. In the presence of calcium ions in excess, calcium carbonate will precipitate.

Iridium (Ir) is a rare element on Earth, but common in
asteroids
volcanoes
the oceans
icy comets

Answers

The metal iridium, which is similar to platinum, is very rare on Earth's surface but is more common in asteroids and in molten rock deep within the planet.

20 points!!!!!!
Do prokaryotes have ribosomes? Why?

Answers

Answer:

yes they do because every cell needs ribosomes to manufacture proteins  

Answer:

yes because all the cells need ribosomes in order to make proteins

 

Explanation:

g It has been proposed that integrin proteins undergo conformational changes when they bind to small molecules diffusing into the extracellular matrix. Because integrins are transmembrane proteins, a change in their conformation can be transmitted across the membrane to the portion of the protein that interacts with intracellular structures. What biological role does this allow integrins to play in a cell's function within a multicellular organism

Answers

Answer:

Cell-cell communication

Explanation:

Integrins are heterodimeric transmembrane receptors that facilitate the adhesion to the cell-extracellular matrix by attaching the cytoskeleton to this matrix. Moreover, integrins also help the cells bind with other cells. Integrins are responsible for the communication between cells and thus control tissue structure. These receptors are responsible for the attachment of fibroblasts to collagen, as well as the attachment of fibroblasts to fibronectin. It is also important to highlight that the binding of integrins with their corresponding ligands activates signaling pathways that control diverse cellular processes including, among others, cell growth, cell development, cell migration, phagocytosis, etc.

The maximum number of organisms of a particular species that can be supported by an environment is called


a logistic growth
b exponential growth
c carrying capacity
d population density

Answers

Answer:

its C, carrying capacity

Explanation:

I don't know I'm smart I guess lol

Carrying capacity is the maximum number of species an environment can support. Therefore, option "C" is correct.

What is carrying capacity?

Carrying capacity is the average number of the particular species that a be supported by a partial habitat is known as carrying capacity. The importance of the carrying capacity is that it helps in the determination of the size of the population that can be tolerated and supported by a particular environment.

The limiting factors of the area of habitat are water, availability of food, and space. The ways to increase the carrying capacity of the are the elimination of the competitor and decrease in the number of predators.

Carrying capacity helps in identification of the how much habitat can support species.

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Animals get the most of the nitrogen they need

Answers

Through the things they eat

Which organism is least related to the bird on this cladogram?

Answers

Answer:

SHARKS HAVE THE LEAST TRAITS IN COMMON WITH BIRDS.

Two colleagues that share the same office are exposed to the flu virus one week in January. Janet just recovered from the same flu virus two weeks earlier, while Mark has not been sick yet this winter. Which person do you expect would be more likely to become sick with this flu virus and why?

Janet: since she already had the flu, her immune system is weaker than Marks.

Janet: she will most likely get the flu again, and a more severe case of it.

Mark: he has not acquired any active immunity to the flu, and Janet has.

Mark: he has only passive immunity to the flu which will not benefit him in this case.

Answers

I believe Mark is more likely to get sick with the flu virus because Janet has acquired a slight immunity because she was infected with it while Mark has not been infected with the virus

Which of the following is NOT found in the nucleus?
O Chromatin
O Mitochondria
Nucleolus
O DNA

Answers

Answer:

nuclius is

Explanation:

nuclius is pretty nice if your'e ask me

Which habit would have the least variation in its salinity

Answers

Answer:

Mangrove forest

Explanation:

Mangrove forest exist only in high saline environment. Lake is a closed type body of water so it is expected with the least variation of salinity.

e a sports
is in the trash

Answers

Answer:

K

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Answer:

and now you're trash

Explanation:

Question 43 of 100
In the "Habit Loop", the actual "behavior" is called the:
a. Cue
b. Routine
c. Craving
d. Reward
Next Previous

Answers

Answer:

The Habit Loop is a neurological loop that governs any habit. The habit loop consists of three elements: a cue, a routine, and a reward.

Explain how asexual reproduction works. what organisms undergo asexual reproduction?

Answers

Answer:

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction, either from a single cell or from a multicellular organism, inherit the genes of their single parent.

Answer:

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction, either from from a single cell or from a multicellular organism, inherit the genes of their single parent.

(it what it says on web.)

Explanation:

In the image of the food chain below the ____ is the producer.

A. Fungi

B. Hawk

C. Plants

D. Snake

Answers

Plant is a producer

Question 10 of 25
The development of cars has been good in some ways and bad in others. The
car has allowed for better transportation but it is also responsible for a great
deal of pollution. Which activity helps solve the pollution problem through the
use of new technology?
A. Encouraging people to walk more
B. Encouraging people to ride a bus
ОО ОО
C. Building cars that give off less pollution
D. Building fewer cars
SUB

Answers

I think it’s d :) hope this helps

The lesson question for this lab is “What is the effect of the type of food available on the frequency of different types of bird beaks?” The the lab procedure you just studied should help you address this question. Will it? Explain.

Answers

Answer:

Yes, this lab will address the lesson question.  

The procedure shows two different food situations—three foods and two foods.

However, the initial populations of birds are the same.

Therefore, in the end, you can compare generation three for each food situation and measure the effect of the food change.

Which kinds of pathogens caused most of the pandemics of the past

Answers

Answer:

bacteria pathogens caused most of the pandemics

Bacteria has caused most of the pandemics in the past because it can be created/grown on its own.

An onion is obviously composed of plant cell which organelle will you not see in an onion cell

Answers

Answer:

multiple vaccules, cilium

Explanation:

Plzz helpppp!!!!! Will give brainliest and 10 pts!!!!

Answers

Explanation:

Red-shift

Emission spectra

Light from a star does not contain all the wavelengths of the electromagnetic spectrum. Elements in the star absorb some of the emitted wavelengths, so dark lines are present when the spectrum is analysed. Different elements produce different patterns of dark lines. The diagram shows part of the emission spectrum of light from the Sun.

A gradient colour spectrum of the sun.

Spectra from distant galaxies

Astronomers can observe light from distant galaxies. When they do this, they see it is different to the light from the Sun. The dark lines in the spectra from distant galaxies show an increase in wavelength. The lines are moved or shifted towards the red end of the spectrum. This effect is called red-shift. The diagram shows part of the emission spectrum of light from a distant galaxy.

A gradient colour spectrum of a distant star.

Red-shift and speed

Astronomers see red-shift in virtually all galaxies. It is a result of the space between the Earth and the galaxies expanding. This expansion stretches out the light waves during their journey to us, shifting them towards the red end of the spectrum. The more red-shifted the light from a galaxy is, the faster the galaxy is moving away from Earth

nvm i got it but take some points by saying this question what are you thankfulll for

Answers

Answer:

I am thankful for my-

-friends

-family

-clothes

-food

-education

-shelter

Scientists can identify the gene mutated in a bacterial auxotroph by transforming the cells with a genomic library in which fragments of the auxotroph's genome have been cloned into plasmids.
a. True
b. False

Answers

Answer: false

Explanation: this can only be true if the genes in the genomic library fragments have been identified and if the mutation is an SNP and not an inversion or deletion or insertion, whether they were cloned into plasmids or not.

Which provide evidence for the general theory of relativity? Check all that apply
gravitational lensing
the constancy of the speed of light
the curvature of space-time
changes in Mercury's orbital path
O gravitational redshift

Answers

Answer:

Gravitational redshift

Explanation:

Gravitational redshift, changes in a planet's orbital path, gravitational lensing provides concrete evidence for the general theory of relativity. Hope this is helpful and the answer you were looking for!

Answer:

1 4 5

Explanation:


Glycemia refers to the amount of glucose in a person's blood. What does it mean that the patient was
hyperglycemic? Why did this affect the doctor's decision to give the patient a normal IV?

Answers

Explanation:

A person that is Hyperglycemia has a high blood pressure causing problems, iv help maintain people blood sugar if u use a normal iv it might cause a high blood pressure can cause blood clot to form in your arteries leading to the brain blocking blood flow causing a stroke. I hope this helps

How do cats catch worms

Answers

Pretty sure they watch them closely and then attack them. Or like the other person said with the tree part. I’ve seen a stray catch stalk it for awhile before attacking it

Which image shows both potential and kinetic energy?
NEED HELP ASAP

Answers

the second image shows it

Control and Data

a tentative, testable scientific explanation

useful for determining the effect of the independent variable

Answers

Answer:

cacacacacacacacacacacacacacacaca

Answer:

kkdm

Explanation:

kmlnui

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