Describe Charles Darwin's theory of natural selection

Answers

Answer 1

Answer:

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Explanation:

Answer 2

Answer:

Explanation:

Darwin's Theory of Evolution by Natural Selection

More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.Charles Darwin's theory of evolution states that evolution happens by natural selection. Individuals in a species show variation in physical characteristics. ... As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve.


Related Questions

^ the question is in the picture above

Answers

If the beavers need large teeth to collect wood for their dams, the population of beavers with larger teeth will live longer because they can collect wood. They will them be able to reproduce therefore passing down the gene with larger incisor teeth

Which of the following would NOT be listed on the Taxonomy scale for living organisms?

Mushrooms

Plankton

Algae

Flu Virus

Answers

Answer: flu virus

Explanation:

Answer:

Flu virus

Explanation:

A virus is not made of cells and is not considered as an organism.

I hope this helped!

Carbohydrates contain _____.

Select one:
a. Oxygen
b. Carbon
c. Hydrogen
d. Carbon, Hydrogen, and Oxygen

Answers

Answer:

D

Explanation:

Carbo (Carbon) Hydr (hydrogen) Ates (Oxygen)

Answer:

D) Carbon, Hydrogen, and Oxygen

Explanation:

i hope this helped ;)

PLZZZ HELP
Task: Should chemical reactions be manipulated in order to meet our food and fuel needs ?
Plz explain a little bit

Answers

Explanation:

I think this is the answer

The ability to control chemical processes is increasingly being used to provide the food and fuel we require.

What are the reactions to making food?

Lipid oxidations, chain reactions that lead to rancidity in foods containing oil and fat, and non-enzymatic browning reactions involving amines.

Reducing sugars are the most significant chemical process in food systems. Growing requires more than simply the bare necessities of water and sunlight.

In truth, sunshine, carbon dioxide, water, soil organisms, and nutrients are the five main components that affect how effectively your plants or crops will grow.

Therefore, in order to meet our food and fuel needs chemical reactions can be manipulated.

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Suggest how humans might contribute to a
mass extinction event.

Answers

Answer:

Deforestation, hunting, pollution, the introduction of various regions of non-native species, and the widespread transmission of infectious diseases spread through livestock and crops.

Explanation:

similarities between the vas deferens of a male reproductive system and fallopian tube of a female reproductive system are ?

Answers

Answer:

Vas deferens → Male reproductive system

Fallopian tube → Female reproductive system.

Explanation:

In vertebrates, there are paired gonoducts for the movement of gametes from the gonads. Humans are no different.

1. Vas deferens is a male gonoduct that transports sperm away from the testes in preparation for ejaculation. Vas deferens collects secretion from seminal vesicle and becomes ejaculatory duct before draining in male urethra.

2. The fallopian tube is a female gonoduct that receives ova from the ovary when ovulation occurs. Fertilization occurs in the fallopian tube, and the early embryo moves from the tube to the uterine cavity.

3. Ciliated pseudostratified epithelium lines the vas deferens, while ciliated columnar epithelium lines the fallopian tube.

Which of these is NOT a phenotype?
A tall
B short
C zygous
D round

Answers

Answer:

I believe that the answer is 'C. zygous'

Explanation:

I hope this helps, have a blessed day.

The option C "zygous" is not a phenotype.

What is a phenotype?

Phenotype refers to the physical and observable characteristics of an organism, which are determined by its genotype and influenced by the environment.

Examples of phenotypic traits include height, eye color, hair color, skin color, and other observable features that vary between individuals of the same or different species. Phenotypes can also include physiological traits, such as blood type, or behavioral traits, such as personality traits in humans.

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Question 8 (2 points)
Which of the following terms identifies all of the interactions between living and
nonliving things within an area?
1.) ecosystem
2.) food web
3.) energy pyramid
4.) food chain

Answers

The answer is gonna be A ecosystem
The answer is the first option ecosystem

Why does a lot of rain form over West Ferris?​

Answers

Answer:

This idea helps explain why more rain forms over West Ferris than East Ferris.Therefore, when explain that water vapor condenses higher in the atmosphere, they are actually explaining that water vapor condenses high in the troposphere, which is relatively low in the atmosphere.

Select the correct answer.
Which of these activities increases the amount of carbon in the atmosphere?
A. animals eating plants
B. burning of fossil fuels
C. fossilization
D. photosynthesis
Reset

Answers

Answer:B. burning of fossil fuels

Explanation:

Please help me. no links i report you

Answers

Answer:

Option b

Explanation:

An unbalanced force moving everyone in Daniel and Maria's direction

ill mark u BRAINLIEST.

Do you think there could be any negative biological effects to overusing cell phones?​

Answers

Answer:

I don't think biologically. it's non ionizing radiation, it's ionizing radiation that's dangerous. the worst I can think of that can be considered biological is eyesight like with that blue filter and can keep you up at night

Answer:

Explanation:

Probably not biological but the eye sight might get worse also people are not talking face to face they are talking over the screen so maybe the brain could havre something to do with that but i think no for the biological

analyze the negative impacts of estracting land resources, Choose
one of the negative impacts and connect it to how it could negative
impact you in your everyday life,

Answers

Answer:

Soil degradation, water shortages, biodiversity loss and global warming.

Explanation:

The negative impacts of extracting land resources are soil degradation, water shortages, biodiversity loss and global warming etc. Global warming greatly influence our daily life because this Global warming changes the climatic condition of the region by increasing the temperature. Using extracted fossil fuels in vehicles releases a lot of carbondioxide gas that collects in the atmosphere and block the sunlight which increases the surrounding temperature. This increase in the surrounding temperature causes floods and greatly impact our life.

Which statements are true?
Usable nitrogen becomes available to organisms in the soil.
Decomposers are important to the carbon cycle
Producers do not play a role in the water cycle/
Both 'A' and 'B' are true

Answers

Answer:

A and B are true

Explanation:

A and B are true

Which of these benefits the grassland by allowing light, warmth, moisture, and nutrients back into the soil?
ponds
fires
rainfall
trees

Answers

I think it might be Rainfalls? That’s just what I think might be the answer

True or false: With enough changes in a gene and enough time, two different species can form from one species if a physical barrier separates them

Answers

the answer is false:)

What element is part of the Alkaline Earth Metals family and located on period 4

Potassium

Bromine

Calcium

Krypton

Answers

Answer:

C. Calcium (CA)

Explanation:

other Alkaline Earth metals in period 4 are, beryllium (Be), magnesium (Mg), strontium (Sr), barium (Ba), and radium (Ra)

Answer:

calcium is part of the alkaline earth metals family

Summarize the different concepts of a species

Answers

The concept of species is an important but difficult one in biology, and is sometimes referred to the "species problem". Some major species concepts are: Typological (or Essentialist, Morphological, Phenetic) species concept. Typology is based on morphology/phenotype.

The concept of species is an important but difficult one in biology, and is sometimes referred to the "species problem".

Thus, Some major species concepts are, Typological (or Essentialist, Morphological, Phenetic) species concept. Typology is based on morphology/phenotype.

The biggest group of organisms that can generate fertile offspring, often through sexual reproduction, from any two individuals of the appropriate sexes or mating types is referred to as a species in biology. It is a unit of biodiversity as well as the fundamental classification and taxonomic rank of an organism.

A species can also be identified by its karyotype, DNA sequence, anatomy, behavior, or ecological niche. In addition, since fossil reproduction cannot be studied, paleontologists use the chronospecies idea.

There are between 8 and 8.7 million different species of eukaryotes, according to the most recent accurate estimate.

Thus, The concept of species is an important but difficult one in biology, and is sometimes referred to the "species problem".

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Which statements about waves are true? (Select TWO)

A
Light waves are mechanical waves.
B
Sound waves are mechanical waves
C
Sound waves are electromagnetic waves
D
Only mechanical waves can travel through a vacuum.
E
Only electromagnetic waves can travel through a vacuum.
F
Only electromagnetic waves can transport energy.

Answers

Answer:

the anser is b and f

Explanation:

etc

A Three-leaf clover is dominant (T) to four leaves (t). What is the probability of an offspring having 4 leaves when you cross a heterozygous clover with a four-leaf clover?
O 25%
O 50%
O 75%
O 0%

Answers

Answer:

%50

Explanation:

Heterozygous = 2 different alleles (Tt)

4 leaf clover = 2 recessive alleles (tt)

T is dominant over t, so with the combination of Tt three leaves are expressed, rather than four leaves

For a recessive trait (four leaves) to show 2 recessive alleles are needed

To find the percentage of the offspring to have four leaves a punnet square should be created

To find the percentage divide the number of four leaf offering with 4 and multiply by 100

2÷4×100=50

= 50%

It might be unhelpful to repeat the answer but it is B. 50%

Which of the following describes a complete nucleotide

Answers

Answer:

Explanation:

A nucleotide is an organic molecule that is the building block of DNA and RNA. They also have functions related to cell signaling, metabolism, and enzyme reactions.

Define
1.epiphyllous stamens
2.staminode​

Answers

Answer:

1. Epiphyllous is anything that is growing on the surface of the leaf or get attached to it of any other plant. ... In this, the stamen gets attached to the part of the flower of some other plant as an adhesion of stamen. Explanation: In other words, Epiphyllous stamen are the Filaments fused with tepals.

2. In botany, a staminode is an often rudimentary, sterile or abortive stamen, which means that it does not produce pollen. Staminodes are frequently inconspicuous and stamen-like, usually occurring at the inner whorl of the flower, but are also sometimes long enough to protrude from the corolla.

Explanation:

pls mark me brainless

6N right and 10N & 2N left

Answers

What? I am confused.

help plss !! really need help

Answers

Answer:

am too young

Explanation:

hope it helps

The following table lists the number and variety of organisms in
four different ecosystems.
Predict what would happen to Ecosystem 3 immediately after a
volcanic eruption.

Answers

Answer:

The following table lists that number and variety of organisms in four different. Predict what would happen to Ecosystem 3 immediately after a volcanic eruption. Its biodiversity would decrease ... 395---Add all of the organisms together and divide by the number of ecosystems

Explanation:

Answer:

Its biodiversity would decrease

Explanation:

D

An isotope used for absolute dating has a half-life of 100,000 years. Laboratory analysis of a crystal, which originally formed with only the parent isotope present, is now found to have a parent-to-daughter ratio of 1 :3. How long has it been since the crystal formed? *

A. 33,000 years
B. 50,000 years
C. 200,000 years
D. 300,000 years


Answers

Answer:

D.it has been 300,000 years

In the presence of oxygen, _____ molecules of ATP can be formed during cellular respiration.

A. 36 to 38
B. 19 to 24
C. 2 to 4
D. 63 to 68
E. 38 to 42

Answers

Answer:

A

Explanation:

Answer:

A. 36-38

Explanation:

Hope this helps :))

Easy points: Is this a good paragraph for my biology class??The question was why is it important for soil to contain nitrogen, phosphorus, magnesium, and potassium.

Soil is one of the main sources of nutrients needed by plants in order to grow. Nitrogen is used by plants for leaf growth and green color. Without nitrogen in the soil, the plant wouldn’t grow tall and produce enough food.Phosphorus is used by plants to help form new roots, make seeds, fruit and flowers.This is crucial because crops take up phosphorus only from the soil solution.Potassium helps plants form strong stems and fast growth. It also increases disease resistance.It triggers activation of enzymes and is essential for production of ATP. Magnesium is the central core of the chlorophyll molecule in the plant’s tissue. If Mg is deficient, the shortage of chlorophyll results in poor and stunted growth.

Answers

Answer:

It makes the roots absorb the nutrients easier

Explanation:

the roots of the plant are meant to absorb water and nutrients for the plants to manufacture food easly and to grow, the soil contain nutrients for the plants to absorb them.

In the image above, what lettered section represents 2 chromosomes, each with 1 chromatid?

Answers

Can you please include the image?

Answer:

If you add the picture I can help :)

Explanation:

How do B cells know when to make antibodies?

A.) They are alerted by Helper T cells.

B.) They are always making antibodies just in case that pathogen is present.

C.) They are alerted by Macrophages.

D.) B cells will simply find the pathogen in the body and immediately begin making
antibodies to fight the pathogen.

Answers

Answer:

A) They are alerted by Helper T cells.

Other Questions
Ill give you BRAINLIEST :)The graph here shows the relative change in energy level for the reactants and the products of photosynthesis. Given the energy levels modeled in the graph, which statement accurately compares the energy of the products and the reactants with regards tophotosynthesis? A)Water and oxygen have the highest energy compared to glucose andcarbon dioxide.B)Glucose and oxygen gas have higher energy levels compared to water andcarbon dioxide.C)Glucose and water have the same energy levels compared to carbondioxide and oxygen gas.D)Glucose and oxygen have a lower energy level associated with themcompared to carbon dioxide and water. Consider the following problem: The box fill weight of Frosted Flakes breakfast cereal follows a normal distribution with a mean of 9.75 ounces and a standard deviation of 0.27 ounces. A sample of 25 boxes filled this morning showed a mean of 9.85 ounces. At the 0.05 significance level, can we conclude that the mean weight is more than 9.75 ounces per box A business operated at 100% of capacity during its first month and incurred the following costs: Production costs (20,000 units): Direct materials $180,000 Direct labor 240,000 Variable factory overhead 280,000 Operating expenses: Variable operating expenses $130,000 Fixed operating expenses 50,000 180,000 If 1,600 units remain unsold at the end of the month, the amount of inventory that would be reported on the variable costing balance sheet is a.$66,400 b.$64,000 c.$78,400 d.$56,000 Which statement describes the graph? People please help me.Use the correct form of the adjectives.1.The Europa Hotel is (expensive) than the Grand Hotel.2.Yesterday it was as (rainy) as it is today.3.That is the (old) building in the town.4.My room isn't as (big) as yours.5.It was (hot) day of the year.6.You are a (good) cook than I am.7.This is (bad) football match I ever seen.8.Kate is as (clever) as her (old) sister.9.John came home (early) than usual.10.Money is not (important) thing in life.11.This tomato ketchup is (tasty) than the other one.12.Sydney is (large) city in Australia. Which survey is biased? A. Going to the mall and asking people what their favorite color is. B. Going to the mall and asking people what their favorite place to shop is. C. Going to the mall and asking people what television channel they watch most. D. Going to the mall and asking people what radio station they listen to most often. 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Directions: Select all the correct answers.Yvette needs 5/8 of a teaspoon of salt, 2/3 of a tablespoon of baking soda, and 3/4 of a cup of sugar to bake a cake.The order of the measurements from least to greatest are 5/8 < 3/4 < 2/3.The order of the measurements from least to greatest are 5/8 < 2/3 < 3/4.The numbers 5/8 and 3/4 are terminating decimals while 2/3 is a non-terminating decimal.The numbers 5/8 and 2/3 are terminating decimals.The number 5/8 is a terminating decimal while 3/4 and 2/3 are non-terminating decimals.The number expands to 0.75 while expands to 0.6.The number 5/8 expands to 0.625 while 3/4 expands to 0.75.The order of the measurements from least to greatest are 2/3 < 5/8 < 3/4 The shareholders equity for the Fiesta Foods, Inc. on December 31, 2010 follows: 12% Preference share capital, P100 par, 20,000 shares P2,000,000 Ordinary share capital, P25 par, 200,000 shares 5,000,000 Share premium 500,000 Retained earnings 750,000 Total shareholders equity P8,250,000 Preference shares have a liquidation value of P110; shares are cumulative, with dividends in arrears for 3 years including the current year and fully payable in the event of liquidation. 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