WORD BANK beak size, competition, die, deep beaks, environment, evolution, food, genetic, greater, lesser, medium beaks, natural selection,
overproduce, shallow beaks, survive
L
One trait that demonstrates the genetic
variation of finches of the Galapagos Islands is their
beaksize
This variation leads to some finches being better suited to their
For example, after the drought of 1977, finches with
were best suited to the
in the drier
were best-suited. Scientists know this
environment. In the very wet year of 1983, finches with
frequency of finches with the favorable
because in each sampled finch population there is a
in that the finches that are best-suited to their environment survive
trait. This demonstrates
as more
and reproduce, whereas ill-suited finches do not. Finches, like all organisms,
for limited resources.
individuals are born than the environment can support. This leads to
The Galapagos finch
Individuals with less favorable traits fail to reproduce and do not
or change over time, is a consequence of all these factors.
population demonstrates that
Answers
Based on study of Finches in the Galapagos islands, finches with beaks sizes better suited to their environment survived while those not suited died in a process of natural selection.
What is natural selection?Natural selection is a natural process that occurs in which organisms which are better suited to their environment are selected for survival and reproduction.
The study of Finches in the Galapagos islands demonstrated natural selection.
One trait that demonstrates the genetic variation of finches of the Galapagos Islands is their beaksize.
The changes that occurs in the beak shape and size of the Finches were adaptations to enable them survive.
Finches with beaks that helped them adapt to changes in their environment survived while those that lacked these adaptations did not.
Therefore, organisms better suited to their environment will survive while those not suited will die in a process of natural selection.
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Related Questions
please help me :( i am struggling with this
Answers
does anyone know the meaning of "donor gene"? It's for my biology class.
Answers
Answer:
During conjugation, one bacterium serves as the donor of the genetic material, and the other serves as the recipient. The donor bacterium carries a DNA sequence called the fertility factor
Explanation:
Answer:
The definition of a donor is:
One that gives, donates, or presents something.
Explanation:
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in cows, the gene for the black color is incompletely dominant to the brown color. heterozygotes are roan color (mixed). a black cow is crossed with a brown, show probabilities of each genotype and phenotype.
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compare and contrast biotic and abiotic factors using a venn diagram include 3 examples for each
Answers
Answer:
A biotic factor is something living that affects its environment around it including other biotic factors and aboitic factors. Examples include grass, cows, spiders
A abiotic factor is something nonliving that affects it's environment around it and the organisms in it. Examples include climate, sunlight, temperature, and water
Explanation:
A biotic factor is anything living that influences both biotic and abiotic variables in its surroundings. Examples include cows, spiders, and grass. while the Abiotic factors are things that are not living but have an impact on the environment and the organisms inside it. Climate, sunlight, temperature, and water are among examples.
What are Biotic and Abiotic factors?All the organisms in the ecosystem have a relationship with biotic variables. The biological byproducts they produce and their presence alter an ecosystem's structure. All living things, including people, fungi, and bacteria as well as animals and plants, are considered to be biotic factors. For each species to reproduce and to meet basic needs like food, the interactions between numerous biotic variables are vital.
Any non-living, chemical, and physical elements that exist in the atmosphere, hydrosphere, and lithosphere are referred to as abiotic factors. Abiotic variables include things like sunlight, air, precipitation, minerals, and soil, to name a few. These elements significantly affect the persistence and procreation of species within an ecosystem.
Thus, examples of Biotic factors include cows, spiders, and grass. while the abiotic factors examples are climate, sunlight, temperature, and water.
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Mary has type A blood. Her son Bill has type AB blood. Which blood type does Bill's dad have if he is homogenous for blood type?
A
B
AB
O
Answers
Answer:
His blood type is B
Explanation:
describe in four (4) complete sentences different
images that analyze related to Ocean Acidification.
Answers
Answer: carbonic acid, (H2CO3), a compound of the elements hydrogen, carbon, and oxygen.
Bicarbonate, HCO3, is a byproduct of your body's metabolism.
A carbonate is a salt of carbonic acid (H2CO3), know by the presence of the carbonate ion, a polyatomic ion with the formula of CO 2− 3.
Calcium is a mineral most often associated with healthy bones and teeth,
During which phase of meiosis are the chromatids first separated from each other?.
Answers
Answer:
In the anaphase II
Answer:
During which phase of meiosis are the chromatids first separated from each other? Anaphase
Explanation:
The chromosomes move away from one another to opposing poles of the spindle during meiotic or mitotic cell division.
Stete five importance of the soil to plant and animal
Answers
Answer:
Soil provides habitat, water, air and food for animals. Healthy soil allows for plants to grow which provides animals with shelter and materials to build it. Soil also provides food for animals as many animals eat plants as their main source of nutrition.
Explanation:
Answer:
It absorbs , holds,releases and purifies water.It provides a sustainable habitat to animals living in the soil.It helps in the growth and development of the plants.It acts as the base for building homes,roads and buildings.It helps to regulate the earth's temperature.In the process of digestion, nucleic acids are broken down into _____, and fats are broken down into ________.
Answers
Answer:
nucleotides, fatty acids, and glycerol
Explanation:
In the process of digestion, nucleic acids are broken down into nucleotides, and fats are broken down into acids, and glycerol.
How is electromagnetic radiation created by the sun?
Answers
Answer:
Nuclear Fusion
Explanation:
The Sun gets its energy from the process of nuclear fusion. This process occurs in the sun's core or interior
According to Charles Darwin's Theory of Evolution, natural selection involves the survival of the...
(a) weakest (b) most populous (c) youngest (d) Fittest
(Wassce, Year 1999, OBJ, No.59)
Answers
(D) Fittest
Because only species with certain adapting features could survive in a given environment.
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Natural selection involves the survival of the fittest organisms
Why?
The weakest organisms will not surviveOrganisms should be adapted to their environment in order to survive.Thus, the answer is Option D [fittest}Hope it helps!
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Why does the white blood cell perform
endocytosis to move the bacteria or virus
to the centre of its cell.
Answers
How does a plant grow in an overcrowded area
Answers
Answer: Nutrient Deficiencies
Explanation : Overcrowded plants must compete with each other for soil nutrients, which can result in increased fertilizer needs. Soil contains a finite amount of nitrogen and other necessary plant nutrients. The more plants there are in a small space, the more quickly these nutrients are used up.
Why is a single base insertion or deletion likely to drastically change how the rest of the genetic code is read?
Answers
The genetic code is of utmost importance as a slight change in it can change the characteristics of an organism. Just like that base insertion or deletion can cause shifting of frame and can result in a change of the nucleotide sequence causing mutation.
What are the types of mutation?Mutation is any change in the genetic sequence that can lead to changes in the genome.
It can be of the following types:
Germline mutation: In gametes, germline mutations occur. Other cells in the body experience somatic mutations.Chromosomal alterations: these are mutations that change the structure of the chromosome.Point mutations: it affects only one nucleotide.Frameshift mutations: these are nucleotide additions or deletions that cause a shift in the reading frame.Thus, base insertion or deletion likely to drastically change how the rest of the genetic code is read as it result in frameshift mutation.
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Antibodies are ________. Group of answer choices B. Edema-causing A. buffers C. giant protein molecules D. large peptide molecules
Answers
Antibodies are located in human body,and they are giant protein molecules.
What are antibodies?Antibodies are protein molecules, they are large and are used by the immune system to identify objects that are foreign such as harmful microrganism.
They can also destroy the effect of this foreign body by identifying the pathogens antigens.
Therefore, antibodies are giant protein molecules.
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Because the woman was known as a philanthropist, the charity group approached her for a donation.
What does the word philanthropist mean in this sentence?
A)someone who owns a business
B)someone who has inherited money
C)someone who makes a lot of money
D)someone who donates to charitable causes
Answers
Answer:
D
Explanation:
Charity approached her because they new she would donate her money.
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help me with this :
Fill in the blank -
Two or more genes that are located on the same chromosome are__________
Answers
linked genes.
.........
Two or more genes that are located on the same chromosome are?
Ans:linked engines
True or false? Enzymes are made of proteins.
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Answer:
true, enzymes are made of long amino acid chains and can speed up reactions. they are also a catalyst.
Explanation:
Pick an element in a common molecule.
-how many protons?
-how many neutrons?
-how many valence electrons?
Molecule:
-what atoms are found in your molecule?
-how many of each type of atom do you have?
-what are the atomic masses for each Atom?
SOMEONE PLEASE HELP ME IM SO BAD AT SCIENCE
Answers
Answer:
nitrogen and h20
Explanation:
protons:7
neutrons: 7
valence electrons: 5
atoms:hydrogen and oxygen
# of each type: H 2 O 1
atomic mass: H 1.00794 O 15.9994
this is all found on the periodic table btw
How do multiple alleles and polygenic traits differ.
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William has Brown eyes. Is it likely that both of his parents have blue eyes?
Answers
Answer:
Brown eye genes are more dominant than blue or green eye gene. He most likely got the brown eye gene from his mother. People don't necessarily have blue eyes just because their parents do. Both parents are probably heterozygous for blue eyes.
Explanation:
Answer:
No
Explanation:
Blue eyes are a recessive trait while Brown eyes are a dominant trait. Two recessive traits = the recessive trait. One dominant trait + one recessive trait = the dominant trait.
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When you write your paper, be sure to answer these questions. (Use these questions as guides for writing, but don't
actually write out the questions and then answer them.)
1. How does the condition develop?
2. When does it develop?
3. Do certain races, a certain gender, or certain types of people get it more often than others?
4. What does it look like in a person?
5. What are the limitations a person has?
6. Is prevention possible?
7. What treatments are available, if any?
8. How do people manage and cope with the condition?
9. How can we be sensitive to people with this type of physical challenge?
Answers
It gets inherited from parents to the offspring. It's genetically transmitted neurobiological condition.
When does it develop?It develops at preteen age generally between the age of 11-13
Do certain races, a certain gender, or certain types of people get it more often than others?The male population get affected by it more than it's counterparts. People with suffered parents and a bad environment to grow in are more likely to get suffer from this disorder
What does it look like in a person?A person suffering from ADHD is likely to have more anxiety and depression thsn than the person who's the exact same age group. These people have difficulties learning things , sorting them out etc.
What are the limitations a person has?These people don't stick around for long around things or people ,they struggle with timelines and remembering things
Is prevention possible?A healthy environment,diet and a physiologist can help a person to overcome this disorder
What treatments are available, if any?Currently there is no treatment in sight apart from therapies, meditation and yoga which calms one's conscience
How do people manage and cope with the condition?Most time ,People suffering from ADHD, prefer to stay alone or being left out as their anxiety increases around people & go out for walks,in the nature or practice their favourite things
How can we be sensitive to people with this type of physical challenge?We can show some empathy to them , respect their personal space and their opinions and also try to label our feelings and thoughts shared with them
Which of the following statement accurately describes the nervous system?
A. Neurons are directly connected to one another and send chemical messages throughout the body.
B. Nerves make up neurons, which are directly connected to one another and transmit electrical messages throughout the body.
C. Nerves transport chemical messengers known as hormones throughout the body.
D. Neurons do not directly touch, but transform electrical messages into chemical messages to transmit the message to the next neuron.
Answers
Answer:
D
Explanation:
There are spaces between neurons called synapses
Select the correct answer from each drop-down menu. complete the passage about earthquakes. earthquakes sometimes occur when . some underwater earthquakes shake the ocean floor and cause large sea waves that destroy property and threaten lives. such a sea wave is called .
Answers
Earthquake occurs due to friction between tectonic plates. The correct options are:
First blank: Option C: A transform boundary causes excessive amounts of friction between two tectonic plates,Second blank: Option B: tsunamiWhen does earthquake happens?An earthquake occurs when the Earth's crust moves suddenly. As the tectonic plates grind against each other, pressure builds up. Earthquake can occur when the plates collide, spread etc.
The options for first 'blank' space are:
a. A volcanic island moves away from a hotspot and it goes extinctb. The solid rock layer in the lithosphere is no longer influenced by the more fluid asthenosphere, c. A transform boundary causes excessive amounts of friction between two tectonic plates, d. A divergent boundary abruptly reserves rolls to become a convergent boundaryThus, correct statement would be:
Earthquakes sometimes occur when A transform boundary causes excessive amounts of friction between two tectonic plates.
(option C)
Now, the second blank has options:
a. an avalanche, b. a tsunami, c. a tidal wave, d. a landslideIt asks the name for "some underwater earthquakes shake the ocean floor and cause large sea waves that destroy property and threaten lives. such a sea wave is called "
Tidal waves are caused by gravity of heavenly bodies, mainly moon.Landslide is sliding of land from hillside etc places.Avalanche is falling of snow, rock and ice from a mountain or hill type region.Tsunami is correct option here, it is caused because of shaking of ocean floor.Thus, Option B: A tsunami is correct.
Thus correct statement would be:
some underwater earthquakes shake the ocean floor and cause large sea waves that destroy property and threaten lives. such a sea wave is called a tsunami
Thus, the correct options are:
First blank: Option C: A transform boundary causes excessive amounts of friction between two tectonic plates,Second blank: Option B: tsunamiLearn more about earthquakes here:
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What is one important FUNCTION of our skin?
Answers
Answer:
Ans :
Explanation:
Provides a protective barrier against mechanical, thermal and physical injury and hazardous substances. Prevents loss of moisture. Reduces harmful effects of UV radiation. Acts as a sensory organ (touch, detects temperature.
hope it helps
Muscles receive messages from
a. motor neurons
b. interneurons
c. sensory neurons
d. effectors
pls help
Answers
Answer:
motor neurons
Explanation:
muscles contraction begins when the nervous system generates a signal.The signal, an impulse called action potential, travels through a type of nerve cell called motor neuron. The neuromuscular junction is the place where the motor neuron reaches a muscle cell.
Answer:
a. motor neurons
Explanation:
i hope this helps let me know if its wrong
PLEASE HELP ME 50 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!
Some scientists have suggested that the Protista kingdom should be split into several groups instead of remaining as one group. Which of the following provides the best argument for dividing up the Protista?
Answers
Answer:
Apart from being unicellular and eukaryotes, the Protista have very little in common.
Explanation:
Answer:
The answer is NOT Colonial Protista have much more in common with other multicellular organisms than they do with unicellular Protista
Just took test
Olfactory receptor cells are essential for our sense of.
Answers
Answer:
Smell. They make us smell things.
Explanation:
define breathing pls.
Answers
Hope it helps ~
I have 10 minutes left
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Answer:
The answers you selected are correct