Compare/contrast Lamarck's explanation of evolution with Darwin's theory of evolution by natural selection.
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For Example, the majestic GIRAFFE! :-)
-Darwin's Theory says giraffes with long necks would be better suited for their African Savannah and would live and reproduce better than giraffes with short necks (natural selection). The short neck gene would.eventually die off.
-Lamarck's Theory says crave perfection. Giraffes with short necks would eventually grow longer necks instead of in Darwin's Theory, dying out. He then concludeds his theory that the giraffes with the better genes will get control over the gene pool aka the good genes are used more, but the bad genes don't just die out like in the other theory.
Hope this helps! :-)
Both Lamarks's theory and Darwin's theory both emphasize the evolution of species from simple life forms.
Evolution is the idea that complex life forms came from simple life forms. There are two basic approaches to the study of evolution;
Darwin's theoryLamark's theoryThe main difference between the Darwin's theory and Lamark's theory is that Darwin's theory emphasized natural selection while the Lamark's theory emphasized the use and disuse of body parts.
However, the two theories provides a vital approach to studying the evolution of complex life forms from simple life forms:
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Mendel performed a cross between individuals heterozygous for three different traits: green versus yellow seeds (green is dominant), red versus white flowers (red is dominant), and green versus yellow pods (green is dominant). what fraction of the offspring would have been expected to have green seeds, red flowers, and green pods?
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3/4 * 3/4 * 3/4 =27/64
The fraction of offspring expected to have green seeds, red flowers, and green pods would be 27/64.
Assuming that the seed shape, flower color, and pod color are represented by A, B, and C alleles respectively.
Since the parents involved in the cross are heterozygous for each trait, their genotypes would be AaBbCc each.
AaBbCc x AaBbCc
See the attached image for the Punnet's square analysis of the cross that results in the offspring with the phenotypic ratio.
The proportion of the offspring with parental phenotypes is 27/64.
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Which type of plant has seeds protected by ovary layers
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-Payshence xoxo
A sample of blood from a mismatched transfusion is observed under the microscope. many large clumps of erythrocytes are observed. which is the antibody responsible for this?
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Natural selection
A: eliminates favorable traits in a population
B: allows populations to change over time
C: forms new traits in a population
D: concentrates traits in a population
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Please help me need it ASAP
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Sickle cell disease is the most common inherited blood disorder in the United States. Approximately 100,000 Americans have the disease.
In the United States, sickle cell disease is most prevalent among African Americans. About one in 12 African Americans and about one in 100 Hispanic Americans carry the sickle cell trait, which means they are carriers of the disease.
Sickle cell disease is caused by a mutation in the hemoglobin-Beta gene found on chromosome 11. Hemoglobin transports oxygen from the lungs to other parts of the body. Red blood cells with normal hemoglobin (hemoglobin-A) are smooth and round and glide through blood vessels.
In people with sickle cell disease, abnormal hemoglobin molecules - hemoglobin S - stick to one another and form long, rod-like structures. These structures cause red blood cells to become stiff, assuming a sickle shape. Their shape causes these red blood cells to pile up, causing blockages and damaging vital organs and tissue.
Sickle cells are destroyed rapidly in the bodies of people with the disease, causing anemia. This anemia is what gives the disease its commonly known name - sickle cell anemia.
The sickle cells also block the flow of blood through vessels, resulting in lung tissue damage that causes acute chest syndrome, pain episodes, stroke and priapism (painful, prolonged erection). It also causes damage to the spleen, kidneys and liver. The damage to the spleen makes patients - especially young children - easily overwhelmed by bacterial infections.
A baby born with sickle cell disease inherits a gene for the disorder from both parents. When both parents have the genetic defect, there's a 25 percent chance that each child will be born with sickle cell disease.
If a child inherits only one copy of the defective gene (from either parent), there is a 50 percent chance that the child will carry the sickle cell trait. People who only carry the sickle cell trait typically don't get the disease, but can pass the defective gene on to their children.
Sickle Cell Disease
An inherited disease in which the red blood cells have an abnormal crescent shape, block small blood vessels, and do not last as long as normal red blood cells. Sickle cell anemia is caused by a mutation (change) in a gene.
In what way is crossing over important for sexual reproduction
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Your patient is a 22-year-old female who has increased her daily dose of lithium without her physician's knowledge. she is complaining of generalized weakness, vomiting, and diarrhea. you notice that her speech is slurred. heart rate = 68 and irregular, respirations = 16, blood pressure = 104/70, sao
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The patient is showing lithium toxicity sign so you need to give her the sodium bicarbonate. Sodium bicarbonate will make lithium secreted in the urine, lowering the lithium level in the blood.
Which of these is not typical of a condensing protostar?
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Which of the following statements explains how science impacts society?
A. Science creates new technology without creating any problems.
B. Science does not affect society as much as some people think.
C. Science creates new technology that benefits society, but it may also create problems.
D. Science does not help us understand the world.
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Answer: C. Science creates new technology that benefits society, but it may also create problems.
Explanation:
Science is a discipline which gives the detailed explanation for the cause of natural events, natural phenomena, or natural processes through experimental evidences and supportive information.
The scientific knowledge can be useful for the development of new technology which can help the society in solving problems associated with the daily life. But can also create problem as with the advent of the technology is expected to adversely affect the natural environment. For example, the use of the fossil fuels to run the vehicle can ultimately affect the environment by causing air pollution due to the emission of the pollutants in the air.
The glial cell that helps to circulate cerebrospinal fluid is the
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Which of the following correctly compares the changes that take place in an ecosystem during primary succession and secondary succession?
A) Primary succession takes place over a long period of time on newly formed land, while secondary succession occurs quickly in areas that have disrupted by a natural disaster.
B) Primary succession takes place quickly on newly formed land, while secondary succession occurs over a long period of time in an area that has been disrupted by a natural disaster.
C) Primary succession takes place over a long period of time in an area that has been disrupted by a natural disaster, while secondary succession occurs quickly on newly formed land.
D) Primary succession takes place quickly in an area that has been disrupted by a natural disaster, while secondary succession occurs over a long period of time on newly formed land.
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Answer:
The answer is A i just took the test just Now.
Explanation:
Primary succession takes place over a long period of time on newly formed land, while secondary succession occurs quickly in areas that have disrupted by a natural disaster.
Primary succession takes place over a long period of time in an area that has been disrupted by a natural disaster, while secondary succession occurs quickly on newly formed land. The correct option is C.
What is Primary succession?Primary succession refers to the process of the gradual growth of plant and animal communities on newly formed or exposed land.
Option A is incorrect because primary succession takes place over a long period of time on bare, previously uninhabited land, while secondary succession occurs on land that has already supported life and has been disturbed by a natural or human-caused event.
Option C is correct because primary succession occurs over a long period of time in an area that has been disrupted by a natural disaster, such as a volcanic eruption or glacier retreat, and typically begins with the establishment of pioneer species such as lichens and mosses.
Thus, the correct option is C.
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He fluid surrounding body cells within the tissues is called
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↠ Interstitial fluid
I hope this helps! ☻
The largest population that an environment can support is called its
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Answer: Carrying capacity.
Explanation:
Bacitracin blocks the transport of nag and nam across the cytoplasmic membrane to the cell wall. like other antimicrobials that block cell wall synthesis, this would result in weak cell walls and __________.
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Cell membrane is important for microorganism because of it separate things outside cells and inside cells. This way, the cell can keep electrolyte and other useful things like carbohydrate and proteins. The cells also dump toxins and dangerous chemical that it produce outside the membrane so it won't damage organs inside the cells.
Bacitracin inhibits the movement of peptidoglycan precursors, therefore interfering with cell wall synthesis and leading to weak cell walls. This results in bacterial cells being more susceptible to osmotic lysis, causing them to rupture due to a water concentration imbalance.
Explanation:Bacitracin is an antibiotic that inhibits the movement of peptidoglycan precursors from the cytoplasm to the cell wall, interfering with cell wall synthesis in bacteria. Consequently, this results in the creation of weak cell walls and renders the bacterial cells more susceptible to osmotic lysis. This condition refers to the rupture or disintegration of the cell due to an imbalance in water concentration through the cell membrane. Osmotic lysis may occur in bacteria if too much water moves into the cell, causing it to burst. Essentially, bacitracin creates an environment in which it is difficult for bacteria to maintain their cellular structure, hence aiding in their elimination.
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What important events are in the timeline of the geological and human stories of stories of this geo scenario ?
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Respiration _____, and cellular respiration ______.
a.uses glucose . . . produces glucose
b.produces glucose . . . produces oxygen
c.is gas exchange . . . produces atp
d.produces atp . . . is gas exchange
e.produces glucose . . . is gas exchange
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Respiration uses glucose while cellular respiration produces ATP.
Explanation:In biology, respiration refers to the process by which organisms obtain energy from the breakdown of molecules like glucose. Cellular respiration, on the other hand, is a specific metabolic process that occurs within cells to produce ATP (adenosine triphosphate), the energy currency of the cell.
So, the correct answer is d. Respiration uses glucose to produce ATP, while cellular respiration is the process of producing ATP through the breakdown of glucose or other molecules.
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How did darwin use the fossil record to support descent from common ancestors and natural selections?
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(5.03 lc)the boxer crab, lybia tesselata, carries a small pair of anemones in its claws. when approached by a predator, it waves the anemones around, presenting the stinging tentacles and chasing away the predator. the anemones benefit by eating food particles from prey that the crab catches. what type of relationship is this?
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Answer:
Mutualism
Explanation:
Mutualism is the symbiotic association between two organisms in which both the partners are benefited. In the given example, the boxer crab uses the stinging tentacles of anemone to protect itself from the predators. On the other hand, the anemone is benefited by feeding on the particles from the prey caught by crab. Since both crab and anemone are benefited, it is an example of mutualism.
1. Antibiotics are effective at treating
A.) a common cold, but not genital warts
B.) a tapeworm infection, but not botulism
C.) strep throat, but not the flu
D.) athlete's foot, but not an ear infection
2. The sneezing, runny nose, and itchy eyes associated with allergies are cause when
A.) smooth muscles reduce the size of air passageways in the lungs
B.) the immune system attacks the body's own cells
C.) mast cells release histamines
D.) infected cells produce interferon,
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Antibiotics are given to treat infections caused by bacteria. Strep throat is caused by a bacterial infection, the flu is caused by a virus. Antibiotics will not work with a viral infection, and if given to treat a viral infection you can be causing more harm than good. Penicillin and amoxicillin are the go to antibiotics for strep throat.
The answer to question 2 is C: {mast cells release histamines.
discuss how anatomy and embryology are used to support the theory of evolution
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Hope this helps!
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What is the Wernicke's area & does it affect your ability to speak?
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People with damage in the Wernicke's area have this so-called "expressive aphasia" wherein the patient can speak words and sentences, but these sentences are made up of mixed up, nonsensical words or "word salad".
The Wernicke's area is intimately related to Broca's area, which is the area of the brain responsible for language and speech production, rather than comprehension.
This is a dna fingerprint exhibiting samples from a victim, two suspects, and the crime scene. which of these dna fragments is common to both the victim and suspect 1? question #9 this is a dna fingerprint exhibiting samples from a victim, two suspects, and the crime scene. which of these dna fragments is common to both the victim and suspect 1? question #9 a b c d e
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The question shows the results of a gel electrophoresis, which shows DNA fragments of the victim and two suspects, suspect 1 and suspect 2. A comparison of the five DNA fragments of the victim, A to E, reveals that the victim and suspect 1 both have the DNA fragment b.
A
visual comparison of the gel electrophoresis results should reveal that Suspect
1 has a DNA fragment that matches victim DNA fragment B.The visuals can be seen in the attachment.
Without a visual reference, it's not definitive to say which DNA fragment is common between the victim and suspect 1. However, in DNA fingerprinting, common fragments are visible as aligned bands in the same position in both samples.
Explanation:The process of identifying the DNA fragments in a sample is known as DNA fingerprinting. Without an image or graphical representation of the DNA fragments from the question, it's impossible to definitively say which fragments are common between the victim and suspect 1. However, in a typical DNA fingerprinting procedure, common fragments would be represented as bands in the same position in both the victim's and suspect 1's DNA samples.
This procedure is based on the concept of gene loci where each individual has unique DNA sequences. The comparison, in this case, is done by looking at the bands' positioning in each sample. If multiple bands, or even a single significant band, aligns between the victim and suspect 1, there could be a link suggesting that suspect 1 might be related to the crime scene.
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This is a type of reproduction where one organism divides into two and there is no exchange of genetic information.
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This would be called asexual reproduction. Hope this helps!
To develop a standard or benchmark, firms need to start with
a. collecting benchmarking information.
b. determining what to benchmark.
c. forming a benchmark team.
d. identifying benchmarking partners.
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Can anyone help? Will medal & fan if possible
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If you see two people walking and holding hands, you perceive that they are a couple because of the Gestalt principle of
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Proximity occurs when elements are in place together. This is usually perceived as a group. This is usually done when objects/person are in close proximity unity occurs. This is because the eye differentiate an object from the surrounding area. When objects are place without proximity. They will be perceived as separate objects. Proximity can be applied even if there is variation in sizes shape and even if it is radically different.
Woman's bane or wolf's bane is another term for which poison?
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This is from a perennial herbaceous plant native to the mountain in the northern hemisphere. This plant grows well in moisture retentive but well draining soil in the mountain meadows. Death usually occurs within hours upon poisoning with usual symptoms of gastrointestinal such as nausea, vomiting, diarrhea. Others experience burning, tingling sensation and numbnes. In large dose of poisoning, motor weakness can be expected some hypotension, bradycardia, arrhythmia. Treatment is usually supportive and patients must be closely monitored.
Woman's bane or wolf's bane refers to Aconitum, a plant that produces a deadly poison. This can be related to Batesian mimicry, where a highly toxic species resembles a less toxic one, discouraging predators.
Explanation:The term Woman's bane or wolf's bane is another name for the plant Aconitum, which produces a deadly poison. This fits under the concept of Batesian mimicry because it involves a highly toxic species (Aconitum) that resembles a lower toxic one. Batesian mimicry is when a harmless species imitates the warning signals of a harmful species to fend off predators. For instance, a plant like Aconitum might look visually similar to other less toxic plants, tricking potential predators into avoiding it due to the perceived risk of poisoning.
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A large tract of land is purchased by a commercial agricultural company. The land is cleared of its native flora, and a single crop is planted instead. What is the effect of this action?
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Clearing land for a single crop in commercial agriculture can result in the loss of biodiversity, changes in rainfall patterns, and increased vulnerability to pests and diseases.
Explanation:When a large tract of land is purchased by a commercial agricultural company and cleared of its native flora to plant a single crop, it has several effects. One of the main effects is the loss of biodiversity as native plants and animals are displaced. This type of agricultural practice can also lead to changes in rainfall patterns and frequency and contribute to deforestation. Additionally, relying on a single crop can make the land more vulnerable to pests and diseases.
Cholesterol can be returned to the ________ and synthesized into ________. bile is stored in the gallbladder or goes through the bile duct to the small intestine and assists in the emulsification of fat from food. a option
a.stomach—acid b option
b.liver- bile c option
c.small intestine-energy d option
d.stomach—bile
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Our answer would be the option
B) Liver - Bile
Remainder cholesterol is removed from the body through the liver which then converts cholesterol into bile/bile salts
Which term describes and enzyme?
A. Substrate
B. Reactant
C. Catalyst
D. Product