Ultimately one type of (answer) could be transformed into something utterly different. It's a process Darwin called "descent with modification.
Answers
Ultimately, one type of creature can be transformed into something utterly different. It's a process Darwin called "descent with modification."
Descent with modification is a key concept in evolutionary theory, which states that species change over time due to the accumulation of small genetic variations. These variations are passed on from generation to generation, and over time, they can result in the emergence of new species or the transformation of existing ones.
The process involves the following steps:
1. Variation: Individual organisms within a species have natural genetic differences.
2. Inheritance: Some of these differences are heritable, meaning they can be passed down to offspring.
3. Selection: Organisms with advantageous traits are more likely to survive and reproduce, passing on these traits to their offspring.
4. Time: Over many generations, the accumulation of these small changes can lead to the transformation of a species or the emergence of a new one.
In summary, the process of "descent with modification" explains how one type of creature can ultimately be transformed into something utterly different over time through the accumulation of small genetic variations and the influence of natural selection.
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Related Questions
The type of bandage material that is not intended to apply pressure but to hold a dressing in place on the forearm is:
Answers
The type of bandage material that is not intended to apply pressure but to hold a dressing in place on the forearm is called a retention bandage.
A retention bandage is used to secure a dressing or other medical device in place without causing compression or restricting blood flow. These bandages are made of lightweight, stretchy materials that conform to the shape of the limb and are typically held in place with adhesive strips or hook-and-loop fasteners. Retaining bandages are commonly used in the treatment of wounds and injuries to the forearm, such as lacerations, burns, and sprains. They are also used to hold IV catheters and other medical devices in place. The use of a retention bandage helps to prevent the dressing or device from moving or shifting, which can compromise the healing process or cause discomfort for the patient.
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Which plant response is affected by photoperiod?; Which of the following is the factor that initiates flowering in long day plants?; Is directional growth responses of plants to a unidirectional source of light?; How do plants respond to a decrease in environmental temperature?
Answers
The flowering, setting of winter buds, and vegetative growth of plant response are affected by photoperiod.
The timing and length of day and night trigger a biological reaction known as photoperiodism. It regulates the development of winter buds, vegetative growth, and flowering. Detection of seasonal variations is vital to plant life.
The majority of plants are sensitive to photoperiod in many different ways, including seed germination, leaf formation rate, leaf blade length and width expansion, dry matter generation, and partitioning, in addition to its effects on generative growth.
The reaction to variations in day length that enables plants to adjust to seasonal changes in their environment is called photoperiodism.
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What is the origin of a warm, wet air mass?
Answers
why is a red laser pointer an example of poor blackbody radiator?
Answers
Answer:
It gives off only one wavelength of electromagnetic radiation.
Explanation:
The scientist who determined that all animals are made out of cells was.
Answers
Answer:
German Zoologist discovers Theodor Schwann that animal were made from cell
how are the inner planets similar to one another
Answers
Answer:
They all have solid surfaces and are similar in size
Explanation:
Answer:
The four planets closest to the sun—Mercury, Venus, Earth and Mars—are the inner planets, also called the terrestrialplanets.
Explanation:
I hope this answer is Wright, So please mark as brainlist answers
Thermodynamics
Heat is thermal energy which is passed on or transferred from one object to another. You may have experienced the many different ways heat can transfer energy; from the rays of the sun, to flow of a breeze.
100% energy in the form of solar radiation
34% reflected from clouds & dust
02% Photosvnines
Wind 1%
Evaporating Water 23%
42% towards heating surface and atmosphere
It takes eight minutes for electromagnetic waves to transfer energy from the sun to the earth. This particular type of energy transfer is known as solar radiation.
As the radiation strikes the earth, molecules within the crust of earth begin to move. As the molecules in the earth begin to collide, the process of conduction begins. If you have ever visited the beach during the warm summer months, you have probably experienced walking on very hot sand. The hot sand is the result of the sun's rays transferring heat through the collision of molecules which is known as conduction. As the land of the earth becomes heated, the molecules in the air above the land are affected. As an air mass becomes warmer, it also becomes less dense and begins to rise. As the density changes and the air mass begin to flow, the process known as convection has begun.
Answer the following questions
1. A light was left on over night on a desk. What kind of heat was being let off from the bulb?
a. Convection
b. Conduction
c. Radiation
d. Solar
2. During the summer the energy from the sun causes the black top on some roads to get so hot, the tar bubbles on the surface. What kind of energy transfer causes the molecules within the black top to move?
a. Convection
b. Conduction
c. Radiation
d. Potential
3. Within the local weather report, high winds are said to be moving into the area. What type of energy is responsible for the flow of energy which creates wind?
a.
Radiation
b.
Convection
C.
Conduction
d.
Potential
4. Radiation is energy which is transferred through
a. Waves
b. Convection
c. Conduction
d. movement
5. Pam places a test tube containing water over a Bunsen burner and lights it. On another sheet of paper, describe the heating process of the contents of the test tube. Within your answer be sure to:
• Identify each phase of thermodynamics, including; conduction and convection
• Describe the movement of the water molecules
Answers
1) The correct answer is c. Radiation. The heat being let off from the bulb is in the form of thermal energy, which is transferred through electromagnetic waves, or radiation.
2) The correct answer is b. Conduction. The energy from the sun is transferred to the black top through radiation, but the heat causes the molecules within the black top to move through conduction, which is the transfer of heat through collisions between molecules.
3) The correct answer is b. Convection. Wind is created by the movement of air masses, which is driven by convection, the transfer of heat through the movement of fluids (in this case, air).
4) The correct answer is a. Waves. Radiation is the transfer of energy through electromagnetic waves, such as visible light, infrared radiation, and ultraviolet radiation.
5) As the Bunsen burner heats the test tube, the water molecules within the test tube begin to move faster and collide with one another, causing the temperature of the water to increase. This is an example of conduction, the transfer of heat through collisions between molecules. As the water near the bottom of the test tube is heated, it becomes less dense and begins to rise, while cooler water from the top of the test tube sinks down to take its place. This is an example of convection, the transfer of heat through the movement of fluids.
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How many ATP and NADH molecules are gained during
glycolysis?
a One ATP molecule, Two NADH molecules
b Two ATP molecules, Two NADH molecures
C One ATP molecule, One NADH molecule
Answers
Two ATP molecules and NADH molecules during glycolysis
at the mid atlantic ridge North america and south america move west while europe and africa move east what conclusin can you draw about the atlantic oceans size millions of years ago
Answers
This indicates that the distance between North America & Europe is increasing at a rate similar to how quickly your fingernails grow.
What leads to poor fingernails?Fingernail issues are frequently brought on by trauma, infections, and skin conditions including eczema and psoriasis. Trauma, uncomfortable footwear, poor blood flow, inadequate nerve supply, and infection are all potential causes of toenail issues.
Can diabetes be detected in the fingernails?Some diabetic patients develop brittle nails with a yellowish tint. This is frequently connected to how sugar is metabolized and how it affects the collagen in toenails. This yellowing of the nails occasionally may be a sign of an infection.
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1. Determine hormones with external and internal secretion.
2. The nervous system and the hormonal system control the sending of messages to different organs of the body, describe the difference between them.
3. Explain the role of thyroxine in the metabolic processes of our body.
4. Describe the role of insulin in regulating blood sugar. What are the effects of adrenaline in the body?
5. Distinguish the role of testosterone and estrogen in human sexual development.
Answers
Answer:
yeah
Explanation:
Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It plays vital roles in digestion, heart and muscle function, brain development and maintenance of bones.
Alternative names for thyroxine
T4; tetraiodothyronine; thyroxin
What is thyroxine?
Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It is the inactive form and most of it is converted to an active form called triiodothyronine by organs such as the liver and kidneys. Thyroid hormones play vital roles in regulating the body’s metabolic rate, heart and digestive functions, muscle control, brain development and maintenance of bones.
How is thyroxine controlled?
The production and release of thyroid hormones, thyroxine and triiodothyronine, is controlled by a feedback loop system that involves the hypothalamus in the brain and the pituitary and thyroid glands. The hypothalamus secretes thyrotropin-releasing hormone which, in turn, stimulates the pituitary gland to produce thyroid stimulating hormone. This hormone stimulates the production of the thyroid hormones, thyroxine and triiodothyronine, by the thyroid gland.
This hormone production system is regulated by a feedback loop so that when the levels of the thyroid hormones (thyroxine and triiodothyronine) increase, they prevent the release of both thyrotropin-releasing hormone and thyroid stimulating hormone. This system allows the body to maintain a constant level of thyroid hormones in the body.
What happens if I have too much thyroxine?
The release of too much thyroxine in the bloodstream is known as thyrotoxicosis. This may be caused by overactivity of the thyroid gland (hyperthyroidism), as in Graves' disease, inflammation of the thyroid or a benign tumour. Thyrotoxicosis can be recognised by a goitre, which is a swelling of the neck due to enlargement of the thyroid gland. Other symptoms of thyrotoxicosis include intolerance to heat, weight loss, increased appetite, increased bowel movements, irregular menstrual cycle, rapid or irregular heartbeat, palpitations, tiredness, irritability, tremor, hair
Mass = 63g
H = 3cm
W = 7cm
L = 1cm
What is the Volume?
I
- What is the Density?
Answers
What is your opinion on climate change? Do you believe it is the naturally occurring fluctuations of Earth's temperature? OR Do you believe it is being caused by human activity?
Answers
The myc gene is a commonly mutated site in cancers. The c-Myc protein decreases the expression of p21 and increases production of ribosomal RNA for protein production. These functions make myc a(n).
Answers
The c-Myc protein can decrease the expression of p21 and increase production of ribosomal RNA for protein production. These functions make myc an oncogene.
Ribosomal RNA is the one involved in the formation of ribosomes and thus helps in protein production. It is a non-coding RNA that means it has no information for the synthesis of protein. The synthesis of rRNA takes place in the nucleolus.
Oncogene is the gene that has the capability to become cancerous when mutated. These genes starts producing proteins that cause the rapid cell division and hence cause cancer. The type of mutation that occurs in these genes is called gain of function mutation.
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Why or why not was the Moon landing a hoax?
Answers
Explanation:
There are many evidences that proves than man haven't set foot on moon, but more than that evidences that proves man had set foot on moon arecalso there. shortly man is confused
How do the size of the two atria compare to the ventricles
Answers
Answer:
Atria are the smaller upper chambers while ventricles are the larger lower chambers off the heart.
Explanation:
the main difference between them is that atria receives blood into the heart whereas ventricles pump blood outside the heart
What is the monomer of DNA?
A. amino acid
B. monosaccharide
C. nucleotide
D. fatty acid
Answers
Answer:
The nucleotide is the monomer of DNA
Explanation:
This is because they are made up of (deoxyribose) and a phosphate residue. The four bases are adenine (A), cytosine (C), guanine (G) and thymine (T). Which are all components of DNA
Answer:
C. nucleotide
Explanation:
The monomers of DNA are known as the nucleotides.
behavioral genetic research is limited to answering whether and how much genetic factors influence a trait. true or false? defend your answer
Answers
Answer:
The statement "behavioral genetic research is limited to answering whether and how much genetic factors influence a trait" is false.
Behavioral genetic research does focus on understanding the contribution of genetic and environmental factors to the development of traits, but it also explores how genetic and environmental factors interact with each other. Behavioral geneticists seek to understand the complex interplay between genes and environment that shapes behavior and mental processes.
In addition, behavioral genetic research can also inform the development of interventions and treatments for individuals who have genetic vulnerabilities to certain traits or disorders. For example, genetic counseling can help individuals make informed decisions about their reproductive choices based on their risk of passing on genetic conditions.
Furthermore, behavioral genetic research has implications for society at large, including legal and ethical considerations. For instance, genetic testing and the use of genetic information in legal contexts raises complex issues of privacy, autonomy, and discrimination.
In summary, while behavioral genetic research does aim to understand the extent to which genetic factors influence a trait, it is not limited to this goal alone. It also explores how genes and the environment interact, informs the development of interventions, and raises important social and ethical questions.
A lymphatic capillary that picks up dietary lipids in the small intestine is called a:________
Answers
A lymphatic capillary that picks up dietary lipids in the small intestine is called a lacteals.
Functions of lacteals-
The main function of lacteals in the human small intestine is the absorption of Fatty acids and glycerol.
Lacteals are small vessels which accumulate fat in the small intestine.
They act as a passage to transport the contents in the form of lipoproteins into the lymphatic system
The red imported fire ant is an invasive species that has affected many native species in North America. Scientists wanted to see the effect of the fire ants on the survival of a certain kind of native bird. They treated nests of the bird with a chemical that kills the ants. They treated a different percentage of bird nests in different areas. In some areas, only 25% of the bird nests were treated with the chemical. In other areas, 100% of the bird nests were treated with the chemical.
The graph below shows the percent of birds surviving compared to the percentage of bird nests treated with the ant-killing chemical.
What conclusion about the effects of fire ants on the birds is best supported by the graph?
A.
The birds are more likely to survive when there are many fire ants, so the ants are likely outcompeting the birds for resources.
B.
The birds are more likely to survive when there are many fire ants, so the ants are likely providing resources for the birds.
C.
The birds are less likely to survive when there are many fire ants, so the ants are likely taking over the niche of the birds.
D.
The birds are less likely to survive when there are many fire ants, so the ants are likely predators of the birds.
Answers
ehhhhhhhh
ok
Explanation:
SOMEONEEEEEE HELPPPP MEEEE
Answers
Answer:
The answer is B.
Explanation:
Answer:I think it’s A
Explanation:
I hope this helps:)
A part of a sequenced chromosome has the sequence on one strand
ATTGCATCCGCGCGTGCGCGCGCGATCCCGTTACTTTCCG Enter the longest part of this sequence that is most likely to take up the Z conformation.
Answers
The longest part of the given sequence that is most likely to take up the Z conformation is "CGCGTGCGCGCGCGATCCC".
The Z conformation of DNA is a left-handed double helix that is characterized by a zigzag backbone pattern. It occurs when the DNA helix is under torsional stress, such as when there are alternating purine-pyrimidine sequences.
The sequence "CGCGTGCGCGCGCGATCCC" contains multiple alternating purine-pyrimidine sequences (CG and AT), which can cause torsional stress in the DNA helix and promote the formation of the Z conformation. The presence of this sequence may have functional implications, as Z-DNA has been shown to play a role in gene expression and regulation.
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What makes up chromatin?
RNA wrapped around proteins called histones
DNA wrapped around proteins called histones
a mixture of DNA, RNA, and other nucleic acids
long chains just made up of DNA
Answers
B. DNA wrapped around proteins called histones makes up chromatin.
DNA- DNA is the molecule present in nearly all cells that contains the genetic information specific to each individual. It is in charge of producing the proteins necessary for cellular growth and development. DNA strands in chromosomes are tightly wound. DNA segments that code for certain proteins are known as genes.
Histones- Histones are fundamental proteins that may link with negatively charged DNA thanks to their positive charges. Some histones serve as spools for the DNA's filamentous thread to wind around. When chromatin is stretched, it resembles a string of beads under the microscope which is known as Nucleosomes.
Chromatin- The term "chromatin" describes the DNA and protein combination that makes up the chromosomes present in the cell of humans as well as other higher creatures.
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Ten percent of the male of a large, randomly mating population are colorblind. A
repreentative group of 1000 from thi population migrate to a South Pacific iland, where there
are already 1000 inhabitant and 30 percent of the male are colorblind. Auming that HardyWeinberg equilibrium applie throughout ALL population, what fraction of male and female
can be expected to be colorblind in the generation immediately following the arrival of the
immigrant?
Answers
Percent females colorblind is 4% and percent males colorblind is 20% .
An X-linked recessive disease, colour blindness. A colour blind male has a defective gene on X chromosome i.e X'Y and a normal woman has no defective gene i.e XY. (X': faulty gene; X: healthy gene) marriage between a normal woman and a colorblind person. A male child receives one normal X chromosome from the mother and a Y chromosome from the father, or XY, if the child is male. Because there are no faulty genes on the X chromosome, the man has normal vision. A female kid inherits one normal X chromosome from the mother and an abnormal X' chromosome (XX') from the father.As a female progeny has defective gene only on one X chromosome its acts like carrier but she is not colour blind. A female must possess defective genes on both the X chromosomes to b colour blind.To know more about colour blind check the below link:
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A truck spilled oil due to an accident in a lake inhabited by pink flamingos, algae and shrimps. The oil causes the death of shrimps and algae.... what will be the effect of this on the flamingos?
Answers
Answer:
The flamingos will not be able to eat algae and shrimp, thus the food chain will slowly get unbalanced, and then everything will stop
Explanation:
An astronaut is planning a trip to a newly-discovered planet according to the law of universal gravitation, the astronaut weight in the new planet will be greater than his weight on earth if:
Answers
The new planet has more mass than Earth but the same radius. The mass of the astronaut will be calculated by the use of Newton's gravitational equation. The weight of the astronaut depends completely on its mass and the gravitational acceleration of the planet.
Gravitational acceleration is directly proportional to the mass of the planet and indirectly proportional to the radius of the planet. Hence, when the gravitational acceleration increases the planet's mass will increase therefore the radius will decrease. The astronaut's mass will depend on these factors.
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In regard to evolution, what is an important note about nervous systems? a. They separate animals from plants. b. They were present in the first single-celled life forms. c. They first developed with brains. d. They developed more than a billion years ago.
Answers
The important note about nervous system in regard to evolution is: (a) They separate animals from plants.
The nervous system is comprised of the brain, spinal cords and the various nerves. The function of nervous system is to regulate all the functions of the body. The functions of nervous system is the transmission of signals to and from the brain.
Evolution is the phenomenon of slow and gradual changes in a population. These changes takes generation over generations to occur. The changes are usually morphological that help the organisms of the population to adapt better in their surroundings. Evolution may cause genetic changes in the body.
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what is synaptic integration? what is synaptic integration? adding together all ipsps generated by a single neuron adding together all epsps generated by a single neuron a process by which multiple synaptic potentials combine within one postsynaptic neuron a method of comparing the amplitudes of miniature postsynaptic potentials
Answers
Synaptic integration is the process by which multiple synaptic potentials combine within one postsynaptic neuron. It is a mechanism through which neural information is processed and transmitted.
In the process of synaptic integration, the postsynaptic neuron receives inputs from multiple presynaptic neurons. These inputs are in the form of excitatory postsynaptic potentials (EPSPs) and inhibitory postsynaptic potentials (IPSPs). EPSPs are positive potentials that tend to depolarize the postsynaptic neuron, while IPSPs are negative potentials that tend to hyperpolarize it.
The postsynaptic neuron then combines these inputs, by adding together all EPSPs and IPSPs generated by different presynaptic neurons. The resulting synaptic potentials are then used to determine whether the postsynaptic neuron will fire an action potential or not. Synaptic integration is an essential process in the neural communication and it helps to transmit the complex information between neurons.
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which of the following ecological roles is/are played by at least some fungi? select all that apply. which of the following ecological roles is/are played by at least some fungi?select all that apply. autotrophy predation decomposition
Answers
Some fungi play the following ecological roles: Predation, Decomposition. Thus, the correct option is "B and C".
Autotrophy: the ability of an organism to produce its own food from simple inorganic substances like water and carbon dioxide is known as Autotrophy.
For example, Green plants use the energy of the sun to convert carbon dioxide and water into glucose in photosynthesis, thereby producing food for themselves. Fungi are not autotrophic.
Predation: fungi act as decomposers, and many of them help in the decomposition of dead plants and animals. Some fungi that are parasitic on plants and animals are predators. They secrete enzymes that break down the cell wall of the host cells, allowing them to enter and suck out nutrients. For example, the fungus Ophiocordyceps infects ants, takes over their nervous system, and makes them climb up to a high place where they die, enabling the fungus to spread its spores.
Decomposition: fungi play a crucial role in the ecosystem as decomposers, breaking down dead plant and animal material and returning nutrients to the soil. Without decomposers like fungi, dead organic matter would accumulate in the environment and nutrients would not be recycled. Fungi are the primary decomposers of dead organic matter in most ecosystems.
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For sneaky snakes, being rude (R) is dominant to being respectful (r). Complete the cross below, and determine the phenotype (dominant : recessive) ratio.
R r
r #1 #2
r #3 #4
2 (#5) : 2 (#6)
Column A
1.
#1:
#1
2.
#2:
#2
3.
#3:
#3
4.
#4:
#4
5.
#5:
#5
6.
#6:
#6
Column B
a.Rr
b.RR
c.sweet
d.respectful
e.sneaky
f.rr
g.rude
Answers
According to the question, the female snake will have genotype rrss, whereas the male snake will have genotype RRSS.
What is the offspring's phenotype?The trait that these genes express is known as phenotype. Phenotypes include things like blossom position, pod shape, eye color, and hair color. In this case, it instructed you to create a hybrid between two parents whose eye color was homozygous dominant.
How is the genotype discovered?A genetic test is a clear-cut approach to determine your genotype. These days, businesses like 23andMe can do this reasonably cheaply. But for this to function, researchers must have identified the genetic variation that results in a trait.
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Describe the structure of an amoeba .....in short form
Answers
Answer:
Structure of amoeba primarily encompasses 3 parts – the cytoplasm, plasma membrane and the nucleus. The cytoplasm can be differentiated into 2 layers – the outer ectoplasm and the inner endoplasm. The plasma membrane is a very thin, double-layered membrane composed of protein and lipid molecules.
Explanation:
:)
Answer:
The structure of amoeba is primarily composed of 3 parts – the cytoplasm, plasma membrane, and the nucleus.
Explanation:
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