Answer:
First, any soft tissue that was present in life decays, leaving behind the hard parts: bones, teeth, shells. This usually happens very quickly as a result of bacterial action.
Explanation:
Based on the genotype of AB blood, what relationship do the A and B genes have?
Answer: In people with type AB blood, both A and B proteins are expressed on the surface of red blood cells equally.
Explanation:
Answer:
They are codominant
Explanation:
The A and B antigens are equally present on the red blood cells, so the relationship of the A and B genes is codominant.
The DNA of humans and mice is almost 92% similar. This similarity indicates that . Mice have a tail, while humans have a tailbone. The tailbone is a structure in humans.
Answer
Mice share a common ancestor with humans, homologousExplanation:
The DNA of humans and mice is almost 92% similar. This similarity indicates that mice share a common ancestor with humans. Mice have a tail, while humans have a tailbone. The tailbone is a homologous structure in humans.
The existence of similar genes (DNA) and pair of structures (tail and tail bone) between humans and mice is referred to as homology. The tail and tail bone that exist between the different animals are called homologous structures. Homologous structures are similar structures that can be found in different animals, indicating that the animals have evolved from a common ancestor. Homologous structures show a high degree of similarity in form but they may or may not have the same functions in the different animals.
The similarity in the DNA and the structures (tail and tail bones) that exist in humans and mice suggests that the two different specie are connected to a common ancestor.
Answer:
Mice share a common ancestor with humans, homologous
Explanation:
PLATO
A female had tubular pregnancy and had to remove her oviducts. Will this affect her in anyway with respect to reproduction ? justify?
Reproduction will be highly affected.
Since there are two oviducts one will be removed as a result of the ectopic pregnancy.
Hence, there will be a defect in the carrying of the ovum from the ovary to the uterus. There will be delivery of the ovum only in the the unaffected oviduct. This can lead to non-fertility.
Ectopic pregnancy is a condition in which there is an implantation of the zygote in a location other than the the uterus.
Please help, appreciated if you do :) Which of these accurately describes the change in the muscle cells of a person running a marathon? Decrease in the number of mitochondria Increase in myoglobin Increase in the number of skeletal muscles Decrease in myoglobin
Answer:
Hey there!
The correct answer would be a Decrease in myoglobin. Myoglobin contains a large amount of oxygen, and desaturates when muscles move. When you run a marathon, your muscles move and thus you have decreased myoglobin.
The change in muscle cells of person a Decrease in myoglobin.
What is Myoglobin?Myoglobin contains a large amount of oxygen, and desaturates when muscles move. When you run a marathon, your muscles move and thus you have decreased myoglobin.
striated muscles, which include your cardiac muscles and skeletal muscles (the muscles linked to your bones and tendons), contain the protein known as myoglobin. Its primary job is to give your muscles' cells oxygen (myocytes).
body's cells require oxygen to function. They transform the stored energy using oxygen. Due to their regular use, your cardiac muscles and skeletal muscles need a lot of oxygen and energy.
Therefore, The change in muscle cells of person a Decrease in myoglobin.
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Which structures are parts of the central nervous system?
The central nervous system(CNS) is composed of the encephalon and spinal cord.
1 Point
Which of the following terms means "a very large molecule made up of many
smaller molecules joined together"?
A. Macromolecule
B. Lipid
Ο Ο Ο
C. Carbohydrate
O D. Nucleic acid
SUBMIT
Answer:
A. Macromolecule
Explanation:
A macromolecule is commonly formed through polymerization which means the production of polymers. The polymers are usually formed when different monomers add up to form a bigger substance(polymer). Polymers are examples of macromolecules because they contain two or more monomers which has a lot of compounds embedded in them.
Macromolecules are very large molecule made up of many smaller molecules joined together and the other options such as carbohydrates, Lipid and nucleic are examples of macromolecules formed under suitable conditions.
Chloride ions, Cl-, follow actively transported Na+ ions from the nephrons into the blood. Would you not expect the Cl- concentration to decrease as fluids are extracted along the nephron?
Answer:
Bicarbonate ion, HCO3- (which has a similar charge to chloride ions) also follow sodium ions into the blood. Also, potassium ions, K+ are transported into the nephron so some chloride ions and bicarbonate ions remains in the nephron to balance the charge.
Explanation:
Sodium is the primary positively charged electrolyte in extracellular fluid. Most of the solute reabsorbed in the proximal tubule is in the form of sodium bicarbonate and sodium chloride. Water is also reabsorbed in order to balance osmotic pressure
When sodium ions are reabsorbed into the blood, few of the substances that are transported with Na+ on the membrane facing the lumen of the tubules include Cl- ions, Ca2+ ions, amino acids, and glucose. Sodium is actively exchanged for K+ using ATP on the basal membrane.
In the distal convoluted tubule, K+ and H+ ions are selectively secreted into the filtrate, while Na+, Cl-, and HCO3- ions are reabsorbed to maintain pH and electrolyte balance in the blood.
Some chloride ions remains in the nephron to balance the charge of the secreted K+ ions and also due to the bicarbonate ions that are removed.
The concentration of Chlorine decreases as fluids are extracted along the nephron because it is not soluble in water. With an increase in the fluid extraction along the nephron, there is the reabsorption of more water and since Chlorine cannot be diluted by water, its concentration decreases. With the more reabsorption of water and increase in its concentration as the fluid moves through the nephron, the relative concentration of chlorine reduces.
This gradient is mainly caused by NaCl and urea. NaCl is transported by the ascending limb of Henle's loop which is exchanged with the descending limb of the vasa recta.
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Which statement describes convergent boundaries?
Rift Forms.
Subduction Occurs.
Plates push away from each other.
Mid-ocean ridges mark locations.
Answer:
its b i took the test
Explanation:
Subduction describes convergent boundaries.
What is convergent boundaries?Lithospheric plate borders that are convergent are those where the plates are moving in the same direction. These regions' plate clashes have the potential to cause earthquakes, volcanic eruptions, and crustal deformation.
The thicker, less dense continental plate pushes aside the thinner, more dense oceanic plate when the two plates contact. Subduction is the process by which the oceanic plate is pressed into the mantle.
The oceanic plate is pushed into regions with increasing temperatures as it falls. Materials in the subducting plate start to approach their melting temperatures and partial melting starts to take place at a depth of around 100 miles (160 km).
Therefore, Subduction describes convergent boundaries.
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.
Beginning with NADH, track the flow of electrons through the ETC. A. Complex I, Complex II, Complex III, Complex IV B. Complex II, Ubiquinone, Complex III, Cytochrome C, Complex IV. C. Complex III, Ubiquinone, Complex II, Cytochrome C, Complex IV, Oxygen D. Complex I, Ubiquinone, Complex III, Cytochrome C, Complex IV, Oxygen.
Answer:
D. Complex I, Ubiquinone, Complex III, Cytochrome C, Complex IV, Oxygen.
Explanation:
The track the flow of electrons through the ETC.
D. Complex I, Ubiquinone, Complex III, Cytochrome C, Complex IV, Oxygen.
Flow of electrons in ETC:In the mitochondrial ETC, electrons flow when the reduced electron (NADH, FADH₂) are oxidized. In plants and other photosynthetic organisms, an ETC serves to oxidize NADPH. They travel down the electron transport chain, releasing the electrons that they once had. The end result is loads of energy, approximately 34 ATP (energy molecule).
Thus, the track of flow will be: Complex I, Ubiquinone, Complex III, Cytochrome C, Complex IV, Oxygen
Find more information about Electron transport chain here:
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Which animals have hair
Answer:
rodents,rabbits and primates have hair
Answer:
Rodents, Primates, and Rabbits
A small lake is filled with fish, turtles, and snakes. The next morning all the fish die but the turtles and snakes are still thriving. How did all the fish die?
Answer:
the snakes and turtles ate the fish
Explanation:
Urgently!
Give reasons
Fruits vegetables and grains should be washed thoroughly
“It is not always possible to find or buy organic fruits and vegetables in today's conditions. In order to purify pesticide residues in foods, the first thing that is usually done at home is to put these foods in vinegar water. However, vinegar water is not effective in reducing pesticide residues, but in reducing the microorganism burden. Studies have done that vinegar water increases the effectiveness of pesticide residues even more. The main purpose of adding vinegar to the washing water is to create an acidic washing environment and to remove the potentially harmful biological factors that can be found on the food in case of inadequate washing. However, many of the pesticides commonly used today cannot be removed from the food due to insufficient washing and are taken into thBe body. This causes pesticides to continue their harmful effects for long periods of time.
Answer:
Fruits, Vegetables and grains should be washed thoroughly to wash off any germs on them. It is really important to wash them to remove any harmful bacteria off them. These bacteria can be really dangerous for our stomach and can cause different diseases. Peeling them is also a way to remove bacteria.
Which of the following statements is true?
What does an organism's genotype describe?
Answer:
genetic's makeup or a person's genes created from organisms
Which two characteristics describe all animals? multicellular and symmetrical multicellular and asymmetrical heterotrophic and multicellular heterotrophic and unicellular
Answer:
heterotrophic and multicellular
Explanation:
All animals are heterotrophic and multicellular. Heterotrophic means that the animals are unable to manufacture their own food. The animals are said to be heterotrophic because unlike plants, they cannot manufacture their own food. They depend on plants and other sources to derive nutrition and energy. Multicellular means made up of many cells. Animals are said to be multicellular because they are made up of different cells.
Answer:
All animals are heterotrophic and multicellular.
Explanation:
All animals are multicellular, they're not just made of one cell.
All animals are heterotrophic, they cannot make their own food like plants so they must rely on eating other organisms for food.
Also, the other answers don't fit.
A cell with the homologous chromosomes undergoes meiosis, and gametes are produced. Is it possible for a chromosome of a gamete to
contain the alleles for gray body and brown eyes
Answer:
No
Explanation: The chromosomes are always inherited as complete unites
Hope this helps
A cell divides to produce two daughter cells that are genetically identical. ____ 13. Homologous chromosomes synapse and crossing over occurs. ____ 14. Centromeres uncouple and chromatids are separated from each other. 15. Independent assortment of chromosomes occurs. _ 16. The process is preceded by replication of the DNA. ___
Answer:
Explanation:
The descriptions describes some of the events that takes place in the mitosis and meiosis cell division process.
A cell divides to produce two daughter cells that are genetically identical. ____. This describes mitosis
Homologous chromosomes synapse and crossing over occurs. ____ . this happens in meiosis I only
14. Centromeres uncouple and chromatids are separated from each other - this happens in mitosis and meiosis II.
15. Independent assortment of chromosomes occurs. _ this happens in meiosis I only.
16. The process is preceded by replication of the DNA. ___. This happens in mitosis and meiosis II.
What would you use the Benedict’s test for? A. To identify if a sugar is present. B. To identify if a reducing lipid is present. C. To identify if a lipid is present. D. To identify if a reducing sugar is present.
Answer:
to identify if a reducing sugar is present...not only reducing but also non reducing sugars
What is the role of xylem in a vascular plant?
A. Transports salt to the roots of the plant
B. Transports chloroplasts to the leaves of the plant
C. Transports carbohydrates from the leaves to the roots
D. Transports material from the roots up into the plant
SUBMIT
the correct answer is D
The role of the xylem in a vascular plant is to transport material from the roots up into the plant.
What do you mean by Vascular plants?Vascular plants may be defined as those plants that have a specialized conducting system that includes xylem and phloem.
Xylem is known to transport water and all essential nutrients and minerals from the roots to the leaves.
Phloem on the other hand transport food from the leaves to the roots.
Therefore, the role of the xylem in a vascular plant is to transport material from the roots up into the plant.
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Think of an example of a natural disaster or human-caused environmental
change that could affect the animals.
Answer:
forest fires.
Explanation:
forest fires are human caused and can destruct the habitat and nutrition of the animals severely
The unusual patterns on a silk moths wings are one of the most stunning examples of mimicry in the wild,mimicry can protect the moth?
The question is incomplete. The complete question is as follows:
The unusual patterns on a silk moth’s wings are one of the most stunning examples of mimicry in the wild. Mimicry occurs when an organism develops a physical characteristic or behavior similar to a protective trait in another species. What do you think these moth wings mimic? Why do you think this kind of mimicry can protect the moth?
Answer:
The silk moth's mimic the physical characteristics such as changes in wings pattern that resemble another moth species that is dangerous or unpalatable to predators.
This unusual change in wings pattern provide camouflage to the silk moths and prevent predators. Predators get confuse because of the mimic spcies and consider them as toxic or untasty and won’t attack.
Answer:
The moth wings actually look like the eyes of a much larger animal. This mimicry may protect the moth from predators.
Explanation: EDMENTUM ANSWER
I will give brainliest and thanks! Which statement about biomass energy is correct? A. Biomass energy is a nonrenewable resource that makes use of materials from recently living organisms. B. Biomass energy is a nonrenewable resource that involves the use of fossil fuels. C. Biomass energy is a renewable resource that cannot be used to generate electricity. D. Biomass energy is a renewable resource that releases pollutants into the air.
Answer:
a
Explanation:
Biomass energy is in fact a nonrenewable resource that makes use of materials from recently living organisms
( please mark me as brainliest, that would be most apprieciated! )
The statement about biomass energy is correct as the biomass energy is a nonrenewable resource that makes use of materials from recently living organisms and is present in Option A as it can end one day.
What is the significance of biomass energy?Biomass energy uses organic materials, such as wood chips, agricultural waste, etc., and they release pollutants into the air that can occur during the burning of biomass, which can be mitigated through the use of modern, efficient combustion. Due to its low carbon emissions, biomass releases fewer carbon emissions when burned than fossil fuels.
Hence, the statement about biomass energy is correct as the biomass energy is a nonrenewable resource that makes use of materials from recently living organisms and is present in Option A as it can end one day.
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Water is essential for the growth of crop plants. But excessive supply of water should be avoided. Give reason.
Answer:
Soil can become waterlogged. The water can cut off the air supply to the roots and to the organisms that live in the soil. If the roots do not receive enough oxygen, the plants will die because they rely on oxygen to complete photosynthesis.
Explanation:
Answer:
We should avoid watering the plants so much
Explanation:
It can lead to the growth of plants and will not grow properly
Which is composed of animo acid and determines all the structures and function of organism
How would the coils in the middle of the diagram
change to show a longitudinal wave with higher
energy?
They would be farther apart.
They would be closer together.
They would be shaped like a hill.
They would be shaped like a valley.
Answer:
The correct answer is - option C.
Explanation:
A longitudinal wave with higher vitality have more noteworthy plentifulness. Abundancy is the separation between the covering and trough of the wave. The crust is the topmost layer of the wave while trough is present at the bottom portion of the wave.
In the event that the separation among crust and trough of the wave is higher so the amplitude is likewise more prominent and we can say that the wave contains a high measure of vitality and the other way around. The state of the structure of the wave simply like a hill.
Thus, the correct answer is - option C.
Answer:
C
Explanation:
edge 2023
In the product 6O2, what does the coefficient mean? There are 12 molecules of O2, There are 8 molecules of O2, There are 6 molecules of O2. There are 2 molecules of O2.
In the product 6O2, there are 6 molecules of O2.
WHAT COEFFICIENT MEANS:
Coefficient, in chemistry, refers to the number behind an element. It represents the number of molecules of that element. The coefficient tells us the amount of molecules contained in an element. For example;In the product 6O2, this tells us that there are 6 molecules of oxygen gas (O2). Other examples are: 2Mn meaning 2 molecules of manganese, 3CO2 meaning 3 molecules of carbon dioxide etc.Learn more: https://brainly.com/question/11815186?referrer=searchResults
what is the center of the DNA strand?
Answer:
It exhibits traits and metabolic instructions of the cell.
Explanation:
A DNA strand is a thin long molecule, with an average width of just around two nanometers. The remarkable thinness of the DNA strands allows them to be bundled very tightly fitted inside cells. Once DNA has been replicated adequately during the process of cell division, it is further wrapped together under a mechanism known as supercoiling. A non-condensed DNA is further condensed during supercoiling using a special protein known as a histone. A part of DNA packed around a large cluster of histones is called a nucleosome. Additional condensation leads to a chromosome or the most compact type of DNA that fits into the nucleus. It is also worth noting that this wrapping does not merely align DNA into a cell, but serves other objectives such as protecting DNA, thus ensuring metabolic instructions to the cell.
where is most of the energy produced in cellular respiration
Answer:
Most of the ATP energy obtained from cellular respiration is produced in the third and final stage, the electron transport chain.
Which sentence supports the statement that complex, multicellular organisms are made up of specialized cells that each perform different functions for the body?
A.
Human liver cells make proteins that promote homeostasis that neurons do not.
B.
Different species of bacteria have different shapes and structures to their cells.
C.
The DNA in the cell nucleus of chimpanzees and humans are 98% identical.
D.
Prokaryotes do not have nuclei, but they can still carry out the basic functions of life.
Answer:
A
Explanation:
Human liver cell make proteins that promote homeostasis that neurons don't have.
Homeostasis is the regulation of an internal steady environment.
Put the following events that occur in a reflex arc in the correct order. Rank the options below. The motor neuron conducts action potentials through the anterior root and spinal nerve to an effector organ The motor neuron conducts action potentials through the anterior root and spinal nerve to an effector organ Open choices for matching The interneuron synapses with a motor neuron The interneuron synapses with a motor neuron Open choices for matching The sensory neuron synapses with an interneuron The sensory neuron synapses with an interneuron Open choices for matching A sensory neuron conducts action potentials through the nerve to the spinal cord A sensory neuron conducts action potentials through the nerve to the spinal cord Open choices for matching A sensory receptor detects a stimulus
Answer: Please see the explanation column for answers
Explanation:
A reflex arc is a nerve or neural pathway that controls a reflex action giving fast response to a stimulus without the conscious act of the brain. Here, the sensory neurons receive stimulation then synapses or connects to spinal motor neurons nerve cells which then connects to muscle cells acting as effectors.
Ranking the events that occur in the reflex arc in correct order gives
1st ---- A sensory receptor detects a stimulus
2nd---A sensory neuron conducts action potentials through the nerve to the spinal cord
3rd----- The sensory neuron synapses with an interneuron
4th----- The interneuron synapses with a motor neuron
5th------- The motor neuron conducts action potentials through the anterior root and spinal nerve to an effector organ.