Define natural selection and give Example with detailed explanations.

Answers

Answer 1

Answer:

Natural selection is when animals who are able to survive in their environment flourish, and those animals who aren't die out.

Explanation:

Lets say there were two rival animals, we can call them plantoids 1 and 2. These plantoids were both trying to out-survive each other. The problem is birds loved to eat them, so through evolution plantoids 1 began producing toxins, so when chewed on the bird would be poisoned. For awhile this worked, and the plantoids without it were dying off. Then plantoids 2 created a thorn on their heads, and were able to blend well. This worked well, and sadly for plantoids 1 the birds were able to eat them. The birds went through natural selection and those who were immune to the poison survived. Now these two plantoids are two completely different species, and they were once the same. In the end plantoids 2 survived because they were more adapted to the setting they lived in.


Related Questions

Which of the following are ways that humans benefit from biodiversity?


Choose all that apply:

Reduced risk of flooding

Food harvested from ecosystems

Raw natural materials, such as wood or rubber

Pollination of crops

Recreation

Medicines derived from plants

Answers

Answer: to be honest I would click all

Explanation: Humans benefit from biodiversity as a source of food, medicine, and raw materials. Biodiversity ecosystems provide benefits to humans, like cleaning water or pollination of crops. ... Marine ecosystems store large amounts of carbon.

Human gets benefits from biodiversity such as food material, pollination of crops, medicines, etc. Hence, all options are correct.

What is biodiversity?

Biodiversity refers to the varieties of flora, fauna, fungi, bacteria, and all types of microorganisms in our ecosystem. There are billions of species of organisms present on the earth. The highest biodiversity is found in the ocean.

There are many benefits of biodiversity such as the risk of flood reduction because plants stop erosion, food produced by the producers, pollination of crops by pollinating agents, recreation, and raw natural materials like wood, vegetables, spices, and medicines derived from plants.

Human gets all these benefits from biodiversity. Therefore, all options are correct.

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Which of the following occurs
while homologous chromosomes
are paired up?
A. They create 2 haploid cells.
B. They contain 6 chromatids.
C. They exchange portions of their DNA.
D. They produce two diploid cells.

Answers

The Correct answer is D

Answer:

Explanation:

the answer is c just answered

Can anyone solve this

Thanks​

Answers

Answer:

Genes are found in their own, separate regions of DNA

Explanation:

separate regions I think

Jordan's grandmother uses the juice from squeezed lemons to remove stains from his shirt. He hypothesizes that the juice is the only part of the lemon that is effective at removing the stains, because it’s an acid. Which two steps would help Jordan determine whether his hypothesis is scientifically supported?

Answers

Answer: I would say The hypothesis that the juice of the lemon is the only pat of lemon that is capable of removing stains from the t-shirt is because the lemon juice is acidic in nature.

1.) To test the validity of this hypothesis he should test the acidity of different parts of the lemon including the juice, pulp and skin of lemon.

2.) He should also compare the lemon juice with other juices to know weather other juices are also helpful in removing stains from the t-shirt.

( I hope this helped <3 )

Butterflies and moths depend upon _________.
A forests
B blossoms
C seeds
D lakes

Answers

It’s A forests because that’s the habitat they live in
I think the answer is forests because it’s the only one that makes sense

Please help me, I have an F in biology and if I get a good grade on this test, I could pass!!

When the insects eat lichen, they are eating the sugar molecules that make
up the plant. The sugar molecule that stores the energy is called what?

Cellular Respiration
Carbon Dioxide
Photosynthesis
Glucose

Answers

Answer:

Glucose molecule

Explanation:

:)

Glucose

Hope this helps

7.Cells of a particular organism are dying at an incredible rate. Under a microscope, doctors are able to determine that the cells
are swelling up with waste and bursting. What must be true of the cells?
O A. They are not synthesizing needed proteins.
B. The cell membrane has become completely permeable.
O C. They are no longer able to produce ATP molecules.
D. They are unable to perform exocytosis.

Answers

Answer:

The cells specialization is what give the cell the ability to survive amongst other cells, without it the cell would not be able to survive. This is a cells means of survival.

Explanation:

none

somebody somebody help me please. I'll give brainliest to anyone who gets it right​

Answers

Ans. The Adrenal Gland Recieves a message to stop releasing CRH

The function of starch is to...
A. aid the immune system.
B. store energy.
C. build proteins.

Answers

B. Store energy

starch is a source of sugar :)
The answer is B) to store energy

If microwave radiation in the universe were visible, it would be bright and
astonishingly uniform. How does this support the Big Bang theory?

Answers

Answer:

Well, background radiation is used to determine how the universe was made, in this case, The Big Bang, if microwaves were visible, astronomers would be able to determine the age. Microwaves would be between orange-red, it might get brighter.

Explanation:

Hope this helps.

The bright and astonishingly uniform color of microwave radiation would : make background radiation visible to astronomers studying the age of the universe ( using the Big bang theory )

The Big bang theory is a cosmological model that proposes that the new universe was formed from the expansion of a Larger body having a high level of density and temperature.

The background radiation is a microwave radiation that is studied by astronomers to determine the age of the universe, therefore if microwave radiation has a bright color it will help the astronomers determine the age of the universe easily and also proving that the formation of the universe was from the Big bang.

Hence we can conclude that The bright and astonishingly uniform color of microwave radiation would : make background radiation visible to astronomers studying the age of the universe ( Big bang theory )

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Rabbits are best described as _______.
a.
producers
b.
primary consumers
c.
secondary consumers
d.
tertiary consumers



Please select the best answer from the choices provided


A
B
C
D

Answers

______________________________

Rabbits are best described as primary consumers.

Because they are dependent upon producers for their food.

Hope it helps

Good luck on your assignment

______________________________

Rabbits can be best described as primary consumers. The correct option is b.

What are primary consumers?

The 2nd trophic level is comprised of primary consumers. They are also known as herbivores. They just feed primary producers, including such plants or algae. A grasshopper, for example, is a primary consumer in the Everglades.

Primary consumers are rabbits because they are the first step up from autotrophs. Autotrophs, such as grass, are eaten by primary consumers such as rabbits.

The animals that eat the primary consumers are known as secondary consumers.

Herbivores are the primary consumers of plants. Primary consumers include caterpillars, insects, grasshoppers, termites, and hummingbirds, which only eat autotrophs (plants).

Rabbits are herbivores because they only eat plants - and herbivores are consumers because they eat plants to survive. Consumers include deer, grasshoppers, and rabbits.

Thus, the correct option is b.

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What do you predict will happen in two weeks time to seedling (C)? A.The plant will continue to grow as pictured. B.It will grow down because its tropism mechanism is confused. C.The root will turn up, and the stem will grow 90 degrees sideways.

Answers

Answer:

the answer u are looking for is C.

hope this helps.

Explanation:

Answer:

The plant will continue to grow as pictured.

Explanation:

What is the answer, help me!

Answers

Answer:

Carbon dioxide

methane

nitrous oxide

Hope this helps you

Yes that last answer is right

Identify three of the seven common neurotransmitters and the functions of each. Then describe what each neurotransmitters controls or regulates in the body.

Answers

Answer:

Dopamine, Acetylcholine, Serotonin

Explanation:

Answer:

One common neurotransmitter is dopamine. It is an excitatory neurotransmitter that is involved in movement, learning, attention, and emotion. GABA is another common neurotransmitter, and it is a major inhibitory neurotransmitter. It is involved in anxiety, arousal, and sleep. Glutamate is a major excitatory neurotransmitter, and it is involved in learning and memory.

Acetylcholine: Serves as a messenger between each motor neuron and skeletal muscles, which accounts for its role in helping to control skeletal muscles.

Serotonin: Affects sleep, hunger, mood, and arousal; connected to aggression and abnormal behavior

Norepinephrine: Helps control arousal and alertness; helps in regulating mood

Endorphins: Major excitatory neurotransmitter; linked to memory and learning processes; released in response to pain and intense exercise

Explanation:

:) have a good day

L 2.2.4 Quiz: Translation
Which amino acid chain will be formed by the codons shown below?
GUC CUU CCG
Messenger
Second base in codon
RNA Codons U
c
A
G
UUU UCU UAU UGU
UUC)
Phe
UCC UAC
}Tyr
UGC)
Cys
с
U
Ser
UUA
Leu
UCA
UAA Stop UGA Stop A
UUG UCG
UAG Stop UGG Trp G
CUU CCU CAU CGU
U
CUC CCC
His
CAC CGC
Leu Pro
CUA CCA CAA
Gin
CGA
CUG CCG CAG CGG
AUU ACU AAU
Asn
AGU
AUC
Ser
lle ACC AAC) AGC
A
Thr
AUA ACA AAA
AUGStart Me ACG
Lys
AGA
AAG) AGG
Arg
GUU GCU GAU GGU
GUC GCC
Asp
GAC, GGC
G
Val
с
Ala
GUA GCA GAA
Gly
Glu
GGA
GUG GCG GAG) GGG
Arg
First base in codon
POCO POCO POCO 20co
Third base in codon
O A. Leu His Ser
O B. Val Leu Pro
O C. Pro Val Pro
O D. Val Pro Pro

Answers

Answer:

uuu ucu uau ugu uuc) phe ucc uac }tyr ugc) cys

Answer:

The answer is Val Leu Pro

QUESTION 1

At what type of plate boundary do lithospheric plates slide against each other horizontally?

divergent

transform

convergent
3 points
QUESTION 2

Where do most transform faults occur?

interior of continents

at oceanic ridges

in the ocean near continental boundaries
3 points
QUESTION 3

The San Andreas Fault in California is an example of a transform fault that has developed where the Pacific Plate moves past the North American Plate.
True
False
2 points
QUESTION 4

The lithosphere is relatively cold along a transform fault, making brittle fracture of rock materials common.
True
False
2 points
QUESTION 5

Earthquakes that take place along transform faults release huge amounts of energy.
True
False
2 points
QUESTION 6

Most volcanism along transform faults originates from

melting of mantle as it rises to fill pull-apart basins

subduction of oceanic plates under continental plates

both a and b
3 points
QUESTION 7

A "leaky" transform system is one that has

active sedimentation

metamorphic activity

volcanic activity
3 points
QUESTION 8

Transform faults can offset spreading centers in oceanic crust by several kilometers in length.
True
False
2 points
QUESTION 9

At the ocean floor transform plate boundaries, which of the following can cause mineral recrystallization of basalt?

brittle fracture of rocks

upwelling magma

high heat and ductile deformation
3 points
QUESTION 10

Which of the following famous transform fault systems produces large earthquakes in Canada?

North Anatolian

Alpine

Queen Charlotte

Answers

Answer:

1.transform

2.at oceanic ridges

3.true

BIOLOGY EXPERTS HELP!!! Which of the following examples poses the greatest potential threat to an ecosystem’s biodiversity?

a) Abandoned farmland is allowed to go fallow and begins to fill in with weeds, shrubs, and saplings.
b) A nonnative species of bee is introduced to prey on the introduced species of fire ants in the Southern United States.
c) A monoculture of fir trees is planted on land that was once clear cut from deforestation.
d) The trapping and relocating of wolves poses a threat as they move into areas of high human population.

Answers

Answer:

b) A nonnative species of bee is introduced to prey on the introduced species of fire ants in the Southern United States.

Explanation:

:)

What type of consumer is the hawk

Answers

A hawk is a primary consumer

Explanation:

Hawk are secondary or tertiary consumers in a food chain. This means that they eat primary and other secondary consumers.

Hope this helps..

Animals cells have which of the following characteristics? Select all that apply

Answers

Answer:

Animal cells have the following characteristics: no cell wall, no large vacuole, only small ones, cleavage furrows.

Explanation:

hope this helps

What do the variables in the Hardy-Weinberg equation represent?


frequency of the homozygous recessive genotype -->


frequency of the heterozygous recessive genotype -->


frequency of the recessive allele -->


frequency of the dominant allele -->


frequency of the homozygous dominant genotype -->


p

p2

q

q2

2pq

Answers

The answer is

frequency of the homozygous recessive genotype --> q^2

frequency of the heterozygous recessive genotype --> 2pq

frequency of the recessive allele --> q

frequency of the dominant allele --> p

frequency of the homozygous dominant genotype --> p^2

Hope this will help for all

The equation of the Hardy-Weinberg equation is p² + 2pq + q² = 1.

What is Hardy-Weinberg equation?

This is defined as a mathematical equation that can be used to calculate the genetic variation of a population at equilibrium.

The variables represented include the following:

Frequency of the homzygous recessive genotype --> q²Frequency of the heterozygous recessive genotype --> 2pqFrequency of the recessive allele --> qFrequency of the dominant allele --> pFrequency of the homzygous dominant genotype --> p².

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Some students used information they gathered from lab investigations to prepare a table. They entered the table in their lab notebooks. Which of these correctly identifies the two cells described in the table? Your answer: Cell 1 is eukaryotic, and Cell 2 is prokaryotic. Both Cell 1 and Cell 2 are prokaryotic. Cell 1 is prokaryotic, and Cell 2 is eukaryotic.

Answers

Answer:

Cell 1 is prokaryotic, and Cell 2 is eukaryotic.

Explanation:

All living cells have been classified into two major domains; Eukarya and Prokarya. This classification was done based on the possession or not of an enclosed structure that houses the genetic material of the organisms called NUCLEUS. Eukaryotic cells possess a membrane-bound nucleus that houses their DNA while prokaryotic cells do not have a membrane-bound nucleus, hence their DNA is found naked in a region of the cytoplasm called NUCLEOID.

In addition to this primary basis (nucleus possession), eukaryotic cells have a linear DNA and other membrane-bound organnelles like mitochondria, Chloroplast, Endoplasmic Reticulum etc while prokaryotic cells have a circular single DNA and have no membrane-bound organnelles.

Based on this comparison, cell 1 is a prokaryotic cell while cell 2 is an eukaryotic cell.

why might the use of common names to describe organisms cause confusion? (for taxonomy and classification unit)

Answers

Many species are similar, if common names are used people will get confused

Minerals that contain the elements silicon and oxygen are called. A. halides
B. oxides
C. silicates
D. carbonates

Answers

Answer:

C

Explanation:

They mostly contain silicon and are bonded by oxygen

Sam is trying to learn about sexual hormones based on the body due to a rush in blood cells. He wants to learn the most he can to educate others about his research. Based on the topic, which will be the most reliable source for Sam to begin his research.

A. A book about planning sexual activities
B. Scientific research on the body
C. The news paper
D. An age restricted site showing nudity

Answers

Answer:

B. Scientific research on the body

Explanation:

B is the most plausible answer because option A and D will not answer your research question about sexual hormones (from a scientific perspective) and option C will have information which will not help you make conclusions since newspaper take their information from other sources and sometimes leave out chunk of data or information to fit it in one page.

Therefore, best option is B to look into scientific research on body where you'll likely encounter research related to blood rushing and sexual hormomes.

The vaccine in a flu shot contains weakened flu viruses. How does a flu shot
work with the immune system?
O A. It delivers antibodies to the muscles.
B. It delivers antibiotics.
C. It activates macrophages.
D. It activates the production of memory cells.

Answers

I believe the answer is B

1
What occurs when the moon casts its shadow on Earth?
lunar eclipse
sidereal month
synodic month
solar eclipse

Answers

Answer:

Solar eclipse

Explanation:

When the

When the moon casts its shadow on Earth, a lunar eclipse occurs.

The last option is correct.

How do we explain?

A lunar eclipse happens when the Earth's shadow falls on the moon. This can only happen during a full moon, when the sun, Earth, and moon are perfectly aligned.

The Earth's shadow has two parts: the umbra and the penumbra. The umbra is the darkest part of the shadow, and it is where the moon will completely disappear. The penumbra is the lighter part of the shadow, and it is where the moon will only partially disappear.

Therefore, the last option is correct.

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The reabsorption of materials into the capillaries surrounding the tubules of nephrons is an example of what?

Answers

Answer:

Homeostatic mechanism

Explanation:

This is an example of homeostatis mechanism. There are many mechanisms in our body that try to keep our body in a steady state as not to disturb the critical processes that occur every second in our body thus these mechanisms are crucial for our everyday survival.

Answer:

yiviv

Explanation:

f8ufug7fyfucugi

PLEASE ANSWER ASAP!
How does the tidal force affect the water and beaches on Earth?

Answers

Answer:

it makes the water level go up and down

Mountains and ice are?

Answers

Answer:

Colliding?

what are the answer choices firstly.

Explanation:

When will there be an vacination for corona?

Answers

Answer:

No one knows yet

Explanation:

They haven't mentioned yet but they have started giving

Please don't take

Thanks.

Corona-virus is spreading around the world, but there are still no vaccines to protect the body against the disease it causes, C ovid-19.

Medical researchers are working hard to change that.

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Simultaneous equation How did innovations in manufacturing lead to improvements in transportation? Which numbers are solutions of the inequality below? (Select all that apply.)x 2 < 8a) 6b) 6c) 4d) 8 What would be some good advice for the situation below: I Hate this feeling, It sucks to feel this way, It feels like I'm dying, I Hate It, I Hate everything, My words are always misleading Cry over it, Because I cannot fix anything, I tried fixing stuff but All I can do Is make them worse, I'm tired But I don't want to fall asleep, I would take my medicine But I know all they're gonna do Is make me feel worse, I don't want him to leave me, I hate it every second He's not speaking to me, my boyfriend and I just feel useless, Helpless, And worthless, I feel lonely. Which bar diagram represents the equation 5x + 7.5 = 15?5X7.5157.55X15155x7.5LO7.5x15Mark this and returnSave and ExitNext Kim knows that todays lab investigation will involve heating liquids over an open flame. Which apparel choice would indicate that Kim planned to stay safe during the investigation Arrange the isotopes of oxygen and carbon in order of decreasing number of neutrons.Rank the isotopes from most o fewest neutrons. To rank items as equivalent, overlap them. 9) A grandmother is nine times older than her grandson. If she is also 56 years older thanhim, what is the age of her grandson after 6 years?a) 7 yearsb) 9 years c) 11 yearsd) 13 years what development contributed to the eventual rise in capitalism in Europe can someone help me on these 2 questions? In ______________, the Supreme Court considered that the student had been informed off the faculty's dissatisfaction with her clinical performance, and the student knew that unless she made significant improvement in this area, she would be dismissed from the program. The court held that the decision to dismiss the student from medical school was based on carrefuul and deliberate evaluation by the faculty, and thus the student's dismissal was not a violation of her constiitutional rights. In Florida, no-fault insurance is 1. (a) The battery on your car has a rating stated in ampere-minutes which permits you toestimate the length of time a fully charged battery could deliver any particular current before discharge. Approximately how much energy is stored by a 50 ampere-minute 12 volt battery? Discipline, Integrity, Compassion, Courage and Humility. Please describe how you have demonstrated these core values in your personal and academic endeavors. Your discussion should highlight how you were an exemplary JRF Scholar and how your future career goals will embody these values? A mail-order house uses 18,000 boxes a year. Carrying costs are 60 cents per box a year, and ordering costs are $96. The following price schedule applies. Determine: a. The optimal order quantity. b. The number of orders per year. Classify the triangle by its sides, and then by its angles.60 degrees60 degrees60 degrees4 ft4 ft4 ftClassified by its sides, the triangle is a(n) equilateralscaleneisosceles triangle.Classified by its angles, the triangle is a(n) obtuseacuteright triangle. What should an action plan include?all the steps that need to be takenpeople who will support a person's goal.people who will assist a person in writing their goal.ways in which a person will articulate their goal. What was the difference between the two sections of New Jersey? H2(g) + I2(g) 2HI(g) + heat. If more I2 is added, in what direction will the equilibrium shift? Group of answer choices So 59 rounded to the nearest ten is