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

Distinguish the types of forgetting: anterograde amnesia, retrograde amnesia, encoding failure, retrieval failure, and interference (both retroactive and proactive).

Answers

Answer:

Anterograde amnesia is the inability to create new memories after the onset of amnesia, while memories from before the event remain intact. Brain regions related to this condition include the medial temporal lobe, medial diencephalon, and hippocampus. Anterograde amnesia can be caused by the effects of long-term alcoholism, severe malnutrition, stroke, head trauma, surgery, Wernicke-Korsakoff syndrome, cerebrovascular events, anoxia, or other trauma. Retrograde amnesia is the inability to recall memories made before the onset of amnesia. Retrograde amnesia is usually caused by head trauma or brain damage to parts of the brain other than the hippocampus (which is involved with the encoding process of new memories). Brain damage causing retrograde amnesia can be as varied as a cerebrovascular accident, stroke, tumor, hypoxia, encephalitis, or chronic alcoholism. The there is encoding failure. Encoding is the process of converting sensory input into a form able to be processed and stored in the memory. However, this process can be impacted by a number of factors, and how well information is encoded affects how well it is able to be recalled later. On the other hand, retrieval failure is the failure to recall information in the absence of memory cues. Proactive interference occurs when old memories hinder the ability to make new memories. In this type of interference, old information inhibits the ability to remember new information, such as when outdated scientific facts interfere with the ability to remember updated facts. This often occurs when memories are learned in similar contexts, or regarding similar things. It’s when we have preconceived notions about situations and events, and apply them to current situations and events.Retroactive interference occurs when old memories are changed by new ones, sometimes so much that the original memory is forgotten. This is when newly learned information interferes with and impedes the recall of previously learned information. The ability to recall previously learned information is greatly reduced if that information is not utilized, and there is substantial new information being presented. This often occurs when hearing recent news figures, then trying to remember earlier facts and figures.

Explanation:

Which component of a galaxy is colorful and found in the space between stars

Answers

Answer:

dust

Explanation:

cause dusk can be any colors

Space between stars:

In astronomy, the interstellar medium (ISM) is the matter and radiation that exist in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and cosmic rays. It fills interstellar space and blends smoothly into the surrounding intergalactic space.

The component of a galaxy which is colorful is disk:

The various colors in a galaxy (red bulge, blue disks) is due to the types of stars found in those galaxy regions, called its stellar population.

Learn more:

brainly.com/question/26156765

pick two air masses and tell me about their characteristics include full name as well as the symbol​

Answers

Answer:

.

Explanation:

Where in the human male body do sperm form?

A. Epididymis
B. Penis
C. Urethra
D. Testis

Answers

Answer:

D.Testis

Explanation:

I remember learning this last year...

The answer is D
Explanation:
Got it right for my test

What does a black watermelon seed mean? How is it different from a white seed?

Answers

White seeds are really just immature black seeds. They're soft and almost translucent because they are only just beginning to grow and develop. The seeds are infertile, so they won't sprout into a watermelon plant if you planted them. They are, however, so soft that they aren't a bother to swallow along with the flesh.

i was able to find this off of googl

From which vessels does heart get its blood supply?

Answers

Answer:

coronary arteries

Explanation:

Two major coronary arteries branch off from the aorta near the point where the aorta and the left ventricle meet.  And they create a muscle with blood which is coronary arteries

construct a model of gas exchange that shows interactions among: air sacs (alveoli) of the lungs, capillaries, artery, vein, red blood cell, and body cell. Include the gases oxygen (O2) and carbon dioxide (CO2), as well as arterial blood and venous blood, in your model. All these structures must be labeled or annotated in your model.

Answers

Answer:

................................

True or False? a human has 23 chromosomes

Answers

humans have 23 PAIRS of chromosomes but have 46 total

Answer:

False

Explanation:

A cell normally contains 23 pairs of chromosomes.

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

What molecule is represented by the molecular model shown below?
O Starch
O Adenosine triphosphate (ATP)
O Glucose
O Adenosine diphosphate (ADP)

Answers

Answer:

adenosine triphosphate (ATP)

Answer:

Adenosine triphosphate (ATP)

Explanation:

ATP has 3 phosphates. Look at the model picture it has 3 P's in it representing 2 phosphates.

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

It refers to the group of ecosystem sharing the same climate

Answers

Answer:

The correct answer is - Biome.

Explanation:

A biome is large area with a particular climate in this region of the earth and typical animals found in the particular area. Biom have different group of ecosystem present in it but live together in a particlular or same climate.

All plants and animals found in every biome has advantage as biome have specific traits like temerature, precipitation, sunlight or humididty and mnymore that help in surviving. For instance, polar bear will live only low humidity and low temperature.

Which two substances are among the four major types of organic compounds made by living things?
A. Water
B. Nucleic acids
C. Lipids
D. Carbon dioxide​

Answers

The two substances that are among the four major types of organic compounds made by living things are nucleic acids and lipids.

What are organic substances?

Organic substances are substances that are from living sources.

There are four major organic substances produced in nature and are as follows:

CarbohydratesLipidsNucleic acidsProteins

Therefore, the two substances that are among the four major types of organic compounds made by living things are nucleic acids and lipids.

Learn more about organic compounds at: https://brainly.com/question/5994723

#SPJ2

Answer:

Lipids and Nucleic acids

Explanation:

I took the test

PLEASEEE HELPPPPP!!!!!!!
which aquatic ecosystem is the most commercially exploited for seafood and minerals.

Answers

Answer:

The coral reefs of the Caribbean are thought to be under threat

Explanation:

Overfishing threatens over 60 percent of Caribbean coral reefs. Declines in coral cover and increases in algal cover have been observed across the region. This analysis identified about one-third of Caribbean reefs at high threat from overfishing pressure and about 30 percent at medium threat.

Which organisms fix nitrogen into forms like ammonia?

Answers

The majority of nitrogen is fixed by bacteria most which are symbiotic with plants recently fixed ammonia is then converted to biologically useful forms by specialized bacteria.

Answer:

Bacteria

Explanation:

state 2 functions of mucus in small intestine

Answers

Answer:

Mucus is extremely important in the gastrointestinal tract. It forms an essential layer in the colon and in the small intestine that helps reduce intestinal inflammation by decreasing bacterial interaction with intestinal epithelial cells.

Explanation:

here are all of them

mark as brainleist

why insects called successful group of animlas​?

Answers

It is believed that insects are so successful because they have a protective shell or exoskeleton, they are small, and they can fly. Their small size and ability to fly permits escape from enemies and dispersal to new environments. ... In addition, insects can produce large numbers of offspring relatively quickly.

which is an example of heat being transferred by conduction
a) A furnace heating the air in a school
b) an ice cube melting in a persons hand
c) A pot of water on the stove boiling
d) The sun heating the water in a swimming pool

Answers

I believe it’s C I’m sorry if I’m wrong but yea

The measure of the average kinetic energy of the atoms of a substance is the
substances energy cycle. *

True
Or
False

Answers

The answer is False, since it is measured by Temperature.

4. Discuss the role of necrohormones

Answers

Answer:

neurotransmitter is a chemical messenger that carries, boosts, and balances signals between neurons (also known as nerve cells) and target cells throughout the body.

(BRAINLIEST)
A medical student is studying how the volume of blood in the circulatory system affects blood pressure. He measures the blood volume and pressure of two classmates, a man and a woman. He finds that the man has a higher blood volume but a lower blood pressure than the woman. He concludes that a person with low blood volume would tend to have high blood pressure. What additional factors should the student consider that would most likely affect blood pressure? (1 point)
Differences in overall outlook on life

Differences in size and gender

Differences in the day's food intake

Differences in the amount of recent exercise

Answers

Answer:

My guess is D, differences in the amount of recent exercise.

A plant uses sunlight to make its food. What kind of energy transition is
taking place?
O A. Sound energy to heat energy
B. Mechanical energy to light energy
C. Light energy to chemical energy
D. Chemical energy to heat energy

Answers

Answer:

I don´t correctly remeber this part of science, but i am going to take a guess and say D) Chemical energy to heat energy

Explanation:

Answer: I believe it is C. Light energy to chemical energy.

Explanation: I think it is C. because this process is photosynthesis which is the process of taking sunlight (which would be light energy) and making oxygen and glucose (which I think would be chemical energy).

Fill in the blank below with the vocabulary word that best completes the sentence, is the science of naming and dassifying organisms based on structural comparisons and genetic evidence​

Answers

Answer:Taxonomy

Explanation:

What molecule promotes guanosine monophosphate synthesis to regulate the balance of nucleotide pools?
A) ATP
B) UTP
C) CTP
The structures of hypoxanthine and allopurinol are shown above. It is known that allopurinol is an inhibitor of the enzyme xanthine oxidase. What type of inhibitor is allopurinol likely to be?
A) Uncompetitive
B)Competitive
C)Allosteric

Answers

Answer:

Well the answer is A: ATP

Explanation:

Element
Compound
Mixture
Organic compound

Answers

ANSWER

Mixture

Explanation: the air is composed of nitrogen and oxygen

Describe how transposable elements create mutations within an organism and how transposable elements facilitate chromosomal rearrangements.

Answers

Answer:

Transposable elements are discrete segments of DNA that can be excised and reintegrated to another site in the genome, these can inactivate the gene in which they reside, cause chromosome breaks, and / or transpose to a new location within the genome.

Explanation:

Transposable elements are fragments of DNA that have the ability to jump from one part of the genome to another. While most of the DNA is always in the same place surrounded by the same neighboring pieces of DNA, mobile elements move from one place to another causing many changes or mutations. When a transposon moves through the genome, it can insert into a vital gene, disrupting its function, or into a location near vital genes, causing erroneous activation or inactivation.On the other hand, there can be chromosomal rearrangements due to transposons of the same family with complementary sequences that are separated in the genome and that by sequence homology match. This can lead to ectopic recombination. Large-scale rearrangements induced by mobile elements are considered a particular class of recombination events that influence genomic plasticity.

PLS HELP WILL MARK BRAINLIEST!!!!!

Which statements are true of all plants? Select four options.

O Most plants are vascular.
O All plants are multicellular.
O All plants are eukaryotic.
O Most plants are autotrophic.
O All plants need sunlight.
O Most plants reproduce sexually.

Answers

Answer:

a, b, c, and d

Explanation:

What is the term for an atom that decays?
A. Precambrian
B. Radioactive
C. Mesozoic
D. Sediment

Answers

Answer:

radioactive

Explanation:

its in physics term

Please I need help will give the brainlist to the right answer

Answers

Answer:

if i’m not wrong i think it’s M?

Explanation:

the nucleus is like the boss of the cell so

HELP, 100 POINTS!

Identify one source of carbon that can be found in each of these four spheres: atmosphere (air), geosphere (land), biosphere (living organisms) and hydrosphere (water).

The mitochondria has been described as the engine of the cell. Why is this a fitting nickname? How is this organelle involved in the process of cellular respiration?

Describe the process of photosynthesis in plants. Why is this process important to animals and humans?

How are the processes of cellular respiration, photosynthesis and carbon cycle related to each other?

Explain how one of the processes discussed in this module (photosynthesis, cellular respiration or the carbon cycle) apply to both the Law of Conservation of Matter and Law of Conservation of Energy.

Answers

Answer:

1.Mitochondria is considered as the power house of the cell as it helps in producing large amount of energy in the form of ATP (adenosine triphosphate) that is used in driving various cellular activities.

2.Through a process called photosynthesis, plants use energy in sunlight to turn a gas called carbon dioxide and water into sugar. Plants then use this sugar to grow. At the same time, plants produce a gas called oxygen as a waste product, which is lucky for us and other animals because we need oxygen to breathe!

3.Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.

4.Cellular respiration uses oxygen and has it's waste product of carbon dioxide (CO2). How does photosynthesis demonstrate the law of conservation? ... The AMOUNT of carbon-dioxide atoms released by respiration are EXACTLY EQUAL to the atoms of these materials contained in the oxygen and carbon converted.The Law of Conservation of Matter states that matter cannot be created or destroyed. The carbon cycle is an example of the Law because the same carbon atoms are being recycled through the carbon cycle. ... Carbon is used for energy, and some is stored for growth.

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