Answer:
The correct option is Genetic drift greatly affects small populations, but large populations can recover.
Explanation:
Genetic drift is an evolutionary mechanism in which the allelic frequencies in a population change through many generations. Its effects are harder in a small-sized population.
Genetic drift results in some alleles loss, even those that are beneficial for the population, and the fixation of some other alleles by an increase in their frequencies. The final consequence is to randomly attach one of the alleles.
Genetic drift has important effects on a population when this last one reduces its size dramatically because of a disaster -bottleneck effect- or because of a population split -founder effect-.
In the exposed example, the hurricane caused a disaster in both populations, reducing the number of individuals on the island and in the mainland. Henry saw a decrease in genetic variation in the island species, but not in the mainland species. This could be because the island population was smaller than the mainland population, so it was more affected by the disaster. The loss of some alleles in the population caused a decrease in genetic variation in the island population.
Answer:
The answer is B.
Explanation:
The bottom two answers don't make sense and the first one is unrelated.
Which is one place that glaciers are found?
A) in the ocean
B) in the tropics
C) at low altitudes
D) at high latitudes
Answer:
I believe it is at high latitudes
Explanation:
I say this because many glaciers are found in Greenland and Antarctica which are both located in higher latitudes
Glaciers are found at HIGH latitudes (Option D).
Latitude refers to the geographic coordinates which are used to indicate specific north-south positions on the Earth's planet.
Low latitudes are geographic coordinates found between the 0 degrees (Equator) and 30 degrees north-south, whereas high latitudes are found between 30 degrees and 90 degrees north-south positions.
At low latitudes, the energy from the sun is able to melt the polar ice.
Thus, glaciers are found at high latitudes because the highest latitudes get a minor amount of energy from the sun compared to low latitudes.
In conclusion, glaciers are found at HIGH latitudes (Option D).
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diff betwn light year and astronomical unit in 2 points
Answer ;
A light year is the distance light travels in a year and an astronomical unit is the average distance between the earth and the sun.
hope this can help you
Which of the following correctly describes connective tissue? made of electrically charged cells that send messages made of cells that are separated by a nonliving matrix made of sheets of cells that are tightly joined together and attached to a basement membrane made of cells capable of contraction
Answer:
the answer is D
Explanation:
I hope this helps
Which two objects in space formed from the huge disk of ice and debris beyond the outer planets? Pluto and comets comets and Neptune Neptune and a solar nebula a solar nebula and planetesimals
Answer:
Pluto and comets
Explanation:
The two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
A Comets is made of dusty ice and they are known to orbit the sun. Comets are also known to contain gases such as carbon dioxide, water, methane and ammonia. Pluto is the farthest planet away from the sun. It also contains ice and some amount of dust which validates the chosen option.
Basedon astronomical findings, the two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
What are Comets?Comets are objects found in space which are composed of dust and ice.
Comets are known to orbit around the sun.
Comets are composed of gases such as carbon dioxide, water, methane and ammonia.
What is Pluto composed of?Pluto which once was classified a planet is known to be farthest planet from the sun.
Pluto is composed of ice and dust particles.
Therefore, the two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
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Which of the following groups is a community?
O A. All of the white-tailed deer living in a forest ecosystem
B. All of the living and nonliving things that interact within a forest
ecosystem
c. All of the insects living in a forest ecosystem
D. All of the living things that interact within a forest ecosystem
Answer:
D. All of the living things that interact within a forest ecosystem
Explanation:
A biological community consists of all biotic(living) organisms within an ecosystem.
Match each type of specialized cell to its functions.
muscle cells
carry oxygen throughout the body,
against pathogens
neurons
conduct electrical impulses; allow b
react to stimuli
epithelial cells
regulate exchange of chemicals, se
various substances
blood cells
help move the skeleton; help the he
and pump blood
Cells Functions
Muscle cells : Help move the skeleton; help the heart beat and pump blood
Neurons : conduct electrical impulses; allow body to react to stimuli
Epithelial cells : Regulate exchange of chemicals, secrete various substances
Blood cells : oxygen throughout the body, protect against pathogens
The cells in the human body have specialized functions and some of the specialized function of some of the specialized cells present in the human body are as listed above.
The muscle cells helps with the mobility of the body and also allows the heart to beat successfully while the Neurons of the nervous system transmits electrical impulses to the brain for proper reaction.
Hence we can conclude that the specialized cells and their functions are as listed above.
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What might be the correlation between the clarity of the lake water and the occurrence of the full body plate trait? What might you conclude about the clarity of the water from 1950 to 1980 based on this correlation?
Answer:
The clarity of the lake water isn’t specified so assuming the clarity improved and other predatorial fish were able to target stickleback fish more easily the full body plating had to come into play to make it more difficult for them to be preyed upon and to give them a better chance at escape.
Explanation:
The clarity of the lake water though not specified in this context. The full
body plate will help the stickleback fish to escape from its predators.
Water clarity is defined as the amount of light which is able to penetrate into
water bodies thereby making it easier for animals in it to see and hunt
properly for their food.
The improvement in water clarity will give the predatorial fish an advantage
to easily hunt stickleback fish. The full body plate trait will therefore give it a
form of adaptation to enable ity escape from other predators in the water
body.
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What other adaptation could have helped koalas as they evolved from land-dwellers to tree-dwellers?
Answer:
I believe it is
fur color that closely matches the eucalyptus bark color
or B
Explanation:
My reasoning is that, if they evolved from land-dwellers to tree-dwellers, they will have almost no need for longer legs for running, as they only need strong legs and arms for climbing, not running.
The ability to communicate better doesn't really mean anything, as they are now all closer or further away, since they are all in trees now. This doesn't mean that they necessarily need to communicate better.
The ability to have several offspring at one time could be the answer, but isn't really necessary.
Predators would hunt for the koalas in the trees now, so to hide, they would need to go inside the tree trunk or camouflage themselves, which most creatures do by blending into their surroundings or changing skin color over time.
I got this question on Edge 2021 biology finals so...
What personal qualities and experiences do you think helped Mendel in his
work?
Answer:
Gregor Mendel belonged to a family of farmers but he went to pursue academic studies. all these things combined with his curiosity resulted in his research studies.
Explanation:
An Austrian monk by profession, Gregor Mendel through experimental studies in his garden, discovered the basic principles of heredity. Mendel 's observations have become the basis of modern genetics and the study of heredity, and he is universally recognized as a foundation for the development of genetics. His strong will led him away from his family occupation of farming. More working in a church it was no less than a revolutionary step to choose science above faith, especially at that time.
Draw a cartoon strip or write an article to summarise the greenhouse effect and how it can lead to global warming. Include the following: 1. Role of the atmosphere (greenhouse gases) in maintaining the temperature on Earth, 2. Carbon cycle between plants, animals and the atmosphere, 3. Humans burn fossil fuels, run cars and generate electricity upsetting the balance, 4. Increased amount of carbon dioxide in the atmosphere leads to increased global temperature, 5. Effects of global warming.
The greenhouse effect is an essential phenomenon for life on earth. However, human activities such as pollution and burning of fossil fuels have caused an intensification of this effect, which has harmed the atmosphere and is directly related to global warming.
The greenhouse effect is formed by a layer of atmospheric gases that settle around the planet and allows a temperature suitable for life to reach the earth's surface. Therefore, we can guarantee that this effect is essential for our survival. It is necessary that the amount of these gases is kept in equilibrium for this temperature to be constant.
However, the burning of fossil fuels, industrial activities, pollution (caused by vehicles, aerosols, fires, among others), the use of non-renewable energy releases greenhouse gases into the atmosphere daily and in large quantities.
This causes the layer of greenhouse gases that circulates the earth to become more and more expanded, not being able to disperse solar radiation easily and causing an increasing temperature. All that heat is retained in the atmosphere, thus generating global warming, which allows the planet's temperature and ocean water to increase dramatically, which can cause various harmful effects to life on the planet.
For this reason, it is necessary to carry out public policies that reduce pollution and encourage the use of clean and renewable energy that does not increase the layer of greenhouse cases, promoting well-being and life on earth.
what is the difference between manure and fe!rtilizer
Answer:
Manures and fertilizers are soil additives that improve the soil quality, helping plants to grow. The main difference between the two is that manure is all-natural animal droppings while fertilizer may be natural but may also have chemicals and other unknown substances added to it.Answer:
Explanation: FERTILIZER :
1) It may be artificial or natural substance.
2)These are chemicals that are added to the soil to increase its fertility and productivity.
3) They are costly
MANURE:
1) It is a natural substance
2) These are obtained by dead and decaying plants and animals.
Prepared in factories.
3) They are less costive then Fertilizer.
what happens to the stomata in the daylight hours
Answer:
they open up to get the energy from the sun.
Explanation:
Dr. DeRidder lesions, or damages, the ventromedial hypothalamus in one group of rats and the lateral hypothalamus in another group. What effect might he expect on the eating behavior of each group of rats? Both groups should begin overeating and become grossly obese. Rats with ventromedial lesions should begin overeating; rats with lateral lesions should stop eating. Both groups should stop eating and perhaps eventually starve to death. Rats with ventromedial lesions should stop eating; rats with lateral lesions should begin overeating.
Answer:
Rats with ventromedial lesions should begin overeating; rats with lateral lesions should stop eating
Explanation:
The feeling of hunger stimulates a desire to eat.
The lateral hypothalamus is responsible for making an organism hunger and craves for food upon receiving any stimulation or signal that causes hunger.
A damaged to the lateral hypothalamus would mean the organism would not be able to sense hunger and thus, there would be no desire to eat. Hence, the rats with lateral lesions should stop eating.
On the other hand, the ventromedial hypothalamus is responsible for quenching hunger and signaling to the organism that it is full, hence, it would stop eating. However, when the ventromedial hypothalamus is damaged, the organism would not be able to tell when to stop eating. Hence, rats with ventromedial lesions should begin overeating.
Which part of the brain is responsible for coordination and balance?
Spinal cord
1
Cerebrum
2
Cerebellum
3
Brainstem
4
Answer:
The answer is cerebellum.
Explanation:
As the function of cerebellum are,
To maintain equlibrium and control the posture of a body.It makes body movements smooth , steady and co- ordinated.It also coordinate and regulates the contraction of skeletal muscles.Hope it helps...
In some symbiotic relationships,
one organism may benefit. What
happens to the other organism?
A. The other organism benefits as well.
B. The organism is either helped or harmed.
C. The organism is harmed, then does harm to
the other organism.
If blood flow in the capillaries of the alevoli was reduced what would be the effect?
Explanation:
Intrinsic diffusion barriers between alveoli and capillaries can result in hypoxemia.
Mark me as the Brainleist plz..
Answer:
less o2
Explanation:
Hug
Science
7. Fill in the blanks with the word from
the plant pot below
Plants can only grow
under certain
The question is incomplete the correct question is attached in the form of the image:
Answer:
Plants can only grow under certain conditions.1. condition. They need 2. Water, air, light, and warmth. If a 3. plant does not have these things will slowly die. A 4. healthy plant has green leaves and stands up strong. A plant that has been deprived of 5. light will lose its leaves. A plant that has been deprived of 6. nutrients will turn yellow, thin and, 7. spindly. To stay healthy a plant needs to take water and nutrients from the 8. soil. Plants take 9. carbon 10. dioxide from the air and use it with water and 11. light to make ts food.
Plants can only grow under certain conditions, which include:
waterairlightwarmthWhat are environmental conditions?Environmental conditions can be defined as different circumstances in which an organism can survive and reproduce.
Organisms are adapted to survive to different environmental conditions (e.g. temperature conditions).An organism that can live in a wide range of environmental conditions is a eurytopic organism.In conclusion, plants can only grow under certain conditions.
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Un jardinero cruzó dos plantas de flores rosadas, con la esperanza de obtener plantas con flores del mismo color. Su sorpresa fue encontrar que, en la descendencia, aparecían flores rojas, rosadas y blancas en la proporción 1:2:1. Pregunta: a) ¿En qué se diferencia la herencia del color de estas flores y la de los guisantes? b) Indica el genotipo de las plantas del cruzamiento descrito.
Answer:
Este es un ejemplo de dominancia incompleta. Es una ocurrencia genética que ocurre cuando un gen dominante no expresa su manifestación completa en el alelo recesivo en un alelo dominante heterocigoto.
Por lo tanto, ambos rasgos se manifiestan, lo que resulta en la combinación de los dos alelos para los colores (blanco y rojo). Se dice que el alelo rojo dominante exhibe un dominio parcial sobre el alelo blanco recesivo, y esto da como resultado el alelo completamente rosado.
De acuerdo con la ley mendeliana, las dos flores rojas son heterocigóticas. Por lo tanto, las flores rojas heterocigóticas dominantes deben ser R. El alelo blanco es recesivo (rr) enmascarado por el rojo R,
Sin embargo, cuando se cruzan los dos alelos heterocigotos rojos:
Los fenotipos están en forma de
RR, (1) rojo Rr Rr (2) rosa rr (1) Blanco.
Esto ocurre porque el alelo rojo dominante no era total / completamente dominante en el alelo recesivo blanco en cada uno, lo que da como resultado un alelo rosa (el tercer fenotipo)
This is an example of incomplete dominance.It is a genetic occurrence which occurs when a dominant gene does not express it full manifestation on the recessive allele in an heterozygote dominant allele.
Therefore,both traits are manifested which results in the blend of the two allele for colors(white and red).The dominant red allele is said to exhibit partial dominance over the recessive white allele.And this results in the entirely pink allele.
Based on Mendelian law the two red flowers are heterozygotes .Therefore, Red heterozygote dominant flowers should beRr.The white allele is recessive(rr) masked by the R-red,
However,when the two red heterozygote alleles are crossed:
The phenotypes are in the form of
RR,(1) red Rr Rr(2) pink rr(1)White.
This occurs because, the dominant red allele was not fully/completely dominant on the white recessive allele in each,which results in pink allele(The third phenotype)
Explanation:
The branch of science which deals with living beings is called biology.
The language of the question is different so it is difficult to answer it.
According to the data given in the question, they are discussing incomplete dominance because the ratio is 1:2:1.
The cross in which the dominant parent is not able to show its character and does not able to suppress the recessive gene. In this case, the plants show the character of somewhere in between both of the cases.
Therefore, they get the ratio of 1:2:1 which indicates the phenotype of red: pink: white.
Hence, the correct answer is incomplete dominance.
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Repair of right eye retinal detachment with a giant tear is performed for an accidental injury sustained from a baseball to the eye at fastball practice. vitrectomy, drainage of subretinal fluid, silicone oil tamponade, and endolaser photocoagulation are performed to correct the tear. what are the procedure and diagnosis codes for this service?
Answer:
Explanation:
Current procedural terminology(CPT) are medical codes used for medical procedures, billing and payment. The code is formulated by America doctors and its serves as guide for treatment.
Diagnosis code for treatment of Retina is 67113, H33.031, W21.03XA
Procedures
The first is to check of CPT codes for repair of eye with Repair/ Retina/ Detachment using Vitrectomy and the code 67113 for rectina repair will be referred to.
Code 67113 is used for repair of damage to retina.
Another index is checks called the ICD-10-CM using Detachment/retina/with retinal/break/giant and code H33.031 will be referred to where 1 indicate right eye as place of injury.
The last code is ICD-10-CM and it is used to locate external Causes of Injuries using Struck (accidentally) by/ball (hit) (thrown)/baseball. Code W21.03 will be referred to as the guide for procedures.
is Primary Hyperaldosteronism cancer?
Primary aldosteronism is a group of disorders, originally described by JW Conn, in which there is a non-suppressible secretion of aldosterone and hypertension. Aldosterone is a salt-retaining hormone synthesized by the adrenal gland that is regulated by multiple factors, with the renin-angiotensin system and serum potassium being the major factors. Additional minor regulators include adrenocorticotropic hormone (ACTH), atrial natriuretic factor, and dopamine
Primary hyperaldosteronism can be caused by either hyperactivity in one adrenal gland (unilateral disease) or both (bilateral disease). Unilateral disease is usually caused by an aldosterone producing adenoma (benign tumor) and less commonly by adrenal cancer or hyperplasia (when the whole gland is hyperactive). Bilateral disease is usually caused by bilateral hyperplasia (when both glands are hyperactive). There are rare genetic syndromes like familial hyperaldosteronism type I and II which may cause both glands to be hyperactive.
what is RNA editing?exactly correct answer
Answer:
a process of evolution
Explanation:
it happens when animal or plant cells make changes of molecules within the RNA .Such may include insertion ,deletion or substitution
:)
Which is a goal of the Human Genome Project?
a to identify the 3 billion genes that comprise the human genome
b to sequence the genome of every living individual
c to address the ethical consequences of genomic research
d to measure the length of human DNA
Answer:
C. to address the ethical consequences of genomic research
Explanation:
Option A comes very close to the correct answer but is not the main goal. Although the scientists were after decoding our genome and mapping our genes and such, ultimate goal was also to address the ethical consequences of genomic research because your genome is your blueprint (i.e. your genome makes you).
How would relaxing the smooth muscles in arteries affect blood pressure?
A. Muscle contraction is not related to blood pressure
O B. Blood pressure would stay the same
O C. Blood pressure would decrease
D. Blood pressure would increase
ASAP!
Answer:
Blood pressure would decrease
The relaxing the smooth muscles in arteries affect blood pressure is O C. Blood pressure would decrease.
What is the smooth muscles?Smooth muscle is gift at some stage in the frame, wherein it serves lots of features. It is withinside the belly and intestines, wherein it facilitates with digestion and nutrient collection. It exists at some stage in the urinary system, wherein it features to assist rid the frame of pollutants and works in electrolyte balance.
Hypertension. By inflicting vascular easy muscle relaxation, CCBs lower systemic vascular resistance, which lowers arterial blood pressure.
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Select the correct answer. A normal appearing couple is found to be heterozygous recessive for albinism. Both have the genotype Aa. The gene responsible for albinism is recessive to the normal pigment-producing gene. What are the chances of their children being albino? A. 3:4 children will be albino. B. All children will be albino. C. 1:4 children will be albino.
Answer:
C. 1:4 children will be albino.
Explanation:
Hope it helps.
Which amino acid chain will be formed by the codons shown below?
AAG AGA UGU
Messenger
Second base in codon
RNA Codons U
C
G
UUU
Phe
JUCU UAU
UUC
JUGU
UCC UAC TYT
UGC Су.
с
UUA
UUG
UAG StolUGG TPG
CUU
CCU CAU CGU
CUC
ССС CAC
His
CGC
Lou Pro
CUA CCA
Ical
CGA
Ang
CUG
Gin
CCG
CAG CGG
AUU ACU TAAU AGU
As
AUCH ACC
Ser
AGC
AAC
А
Thr
AUA IACA IAAA
IMA Lys
AGA
AUGACG
Ang
AAG
AGO
GUU IGCUS TGAU GGU
GUC GCC GAC
Asp
GGC
G
Val Ala
Gy
GUA GCA GAA GGA
GUG
IGCG
Glu
GGG
OGAN
С
Third base in codon
GAG
O A. Asn-Ser-Cys
O B. Lys-Ser-Cys
10
O C. Asn-Arg-Cys
O D. Lys-Arg-Cys
Answer:
the answer is d. lys-arg-cys
A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all.
Answer:
C
Explanation:
The complete question: A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all. In the experiment described in the scenario, which group represents the control group? A. Plant B B. Plant A C. Plant D D. Plant C?
The control group here would be plant D.
Control groups are usually used to minimize the effects of extraneous variables in the course of experiments and to ensure that the differences observed in different experimental groups are due to the effects of the independent variables.
In this case, all the plants were exposed to music except the control group because the aim of the experiment is to measure the effects of music on plant growth. Any difference in growth observed between those exposed to music and the control group can reliably be considered to be due to the music.
The correct option is C.
Answer:
d
Explanation:
Explain what igneous rock is
Explanation:
Igneous rock is formed through the cooling and solidification of magma or lava.
Answer:Igneous rock is which is also called magmatic rock is the rock formed when hot,molten rocks crystallizes and solidifies.
Explanation:
Which of the following best describes the behavior of nonconservative elements in seawater?
A. Nonconservative elements are reactive in seawater and have a long residence time.
B. Nonconservative elements are reactive in seawater and have a short residence time.
C. Nonconservative elements are non-reactive in seawater and have a short residence time.
D. Nonconservative elements are non-reactive in seawater and have a long residence time.
Answer: Option C.
Nonconservative elements are non-reactive in seawater and have a short residence time.
Explanation:
Non conservative elements are elements that enter the sea water and have little concentrations in the ocean and show spartial variationns. These elements have short residence time I .e short replacement time and they are non reactive .Constituents such as phosphate, nitrate, and other nutrients, and dissolved oxygen, carbon dioxide, etc. are non-conservative because their concentrations are later changed by chemical reaction in the sea.
what kind of diagonosis is neuroblastoma?
Answer:
Neuroblastoma is a cancer that develops from immature nerve cells.
Explanation:
Neuroblastoma often spreads to the bone marrow (the soft inner parts of certain bones)
hope this helps
Answer:
Neuroblastoma often spreads to the bone marrow (the soft inner parts of certain bones). If blood or urine levels of catecholamines are increased,
Explanation:
then finding cancer cells in a bone marrow sample is enough to diagnose neuroblastoma (without getting a biopsy of the main tumor
In which two places do divergent boundaries occur? land and oceans oceans and volcanoes volcanoes and lower mantle lower mantle and land
Answer:
The correct option is;
Land and oceans
Explanation:
Divergent boundaries otherwise known as a constructive boundary is a feature that is liner in shape and occur between the spreading centers of two separating tectonic plates where also magma rising from the mantle forms a new crust
Rifts are formed in continents (land)by divergent boundaries which enlarge into rift valleys. Active divergent boundaries can be located in mid-ocean ridge tectonic plate and volcanic islands are formed by divergent boundaries.
Answer:A
Explanation: