Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
Explanation:
God said so
a description of the role of sensory organs and the types of
stimuli the organs receive
Tongue
The four intrinsic tongue muscles work together to give the tongue great flexibility.
The nervous system must receive and process information about the world outside in order to react, communicate, and keep the body healthy and safe. Much of this information comes through the sensory organs: the eyes, ears, nose, tongue, and skin. Specialized cells and tissues within these organs receive raw stimuli and translate them into signals the nervous system can use. Nerves relay the signals to the brain, which interprets them as sight (vision), sound (hearing), smell (olfaction), taste (gustation), and touch (tactile perception).
1. The Eyes Translate Light into Image Signals for the Brain to Process
The eyes sit in the orbits of the skull, protected by bone and fat. The white part of the eye is the sclera. It protects interior structures and surrounds a circular portal formed by the cornea, iris, and pupil. The cornea is transparent to allow light to enter the eye, and curved to direct it through the pupil behind it. The pupil is actually an opening in the colored disk of the iris. The iris dilates or constricts, adjusting how much light passes through the pupil and onto the lens. The curved lens then focuses the image onto the retina, the eye’s interior layer. The retina is a delicate membrane of nervous tissue containing photoreceptor cells. These cells, the rods and cones, translate light into nervous signals. The optic nerve carries the signals from the eye to the brain, which interprets them to form visual images.
2. The Ear Uses Bones and Fluid to Transform Sound Waves into Sound Signals
Music, laughter, car honks — all reach the ears as sound waves in the air. The outer ear funnels the waves down the ear canal (the external acoustic meatus) to the tympanic membrane (the “ear drum”). The sound waves beat against the tympanic membrane, creating mechanical vibrations in the membrane. The tympanic membrane transfers these vibrations to three small bones, known as auditory ossicles, found in the air-filled cavity of the middle ear. These bones – the malleus, incus, and stapes – carry the vibrations and knock against the opening to the inner ear. The inner ear consists of fluid-filled canals, including the spiral-shaped cochlea. As the ossicles pound away, specialized hair cells in the cochlea detect pressure waves in the fluid. They activate nervous receptors, sending signals through the cochlear nerve toward the brain, which interprets the signals as sounds.
3. Specialized Receptors in the Skin Send Touch Signals to the Brain
Skin consists of three major tissue layers: the outer epidermis, middle dermis, and inner hypodermis. Specialized receptor cells within these layers detect tactile sensations and relay signals through peripheral nerves toward the brain. The presence and location of the different types of receptors make certain body parts more sensitive. Merkel cells, for example, are found in the lower epidermis of lips, hands, and external genitalia. Meissner corpuscles are found in the upper dermis of hairless skin — fingertips, nipples, the soles of the feet. Both of these receptors detect touch, pressure, and vibration. Other touch receptors include Pacinian corpuscles, which also register pressure and vibration, and the free endings of specialized nerves that feel pain, itch, and tickle.
4. Olfaction: Chemicals in the Air Stimulate Signals the Brain Interprets as Smells
The sense of smell is called olfaction. It starts with specialized nerve receptors located on hairlike cilia in the epithelium at the top of the nasal cavity. When we sniff or inhale through the nose, some chemicals in the air bind to these receptors. That triggers a signal that travels up a nerve fiber, through the epithelium and the skull bone above, to the olfactory bulbs. The olfactory bulbs contain neuron cell bodies that transmit information along the cranial nerves, which are extensions of the olfactory bulbs. They send the signal down the olfactory nerves, toward the olfactory area of the cerebral cortex.
5. Home of the Taste Buds: The Tongue Is the Principal Organ of Gustation
What are all those small bumps on the top of the tongue? They’re called papillae. Many of them, including circumvallate papillae and fungiform papillae, contain taste buds. When we eat, chemicals from food enter the papillae and reach the taste buds. These chemicals (or tastants) stimulate specialized gustatory cells inside the taste buds, activating nervous receptors. The receptors send signals to fibers of the facial, glossopharyngeal, and vagus nerves. Those nerves carry the signals to the medulla oblongata, which relays them to the thalamus and cerebral cortex of the brain.
Answer:
The motion of a mouse
Explanation:
Ik This is for A-P-3-X
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What are the answers? plzz help
Larvae of the Diamondback moth feed on cauliflower paleo Aunt Farmers commonly used pesticides to repel them all from the cauliflower plants the larvae of the Diamondback moth arnab resistant various types of pesticides which statement best describes how the larvae became resistant?
Answer:
Mutation.
Explanation:
Mutation is the factor that is responsible for the acquiring resistance of various pests against pesticides because in mutation the genetic makeup of the organism changes which has no effect of the chemicals applied on them. Repeated use of the same type of pesticides to control a specific pest can cause changes in the genetic makeup of a pest that leads to another form of pest which causes pesticide resistance in the new type of pest so we can say that mutation is the main cause of resistance in pests.
Please help thank you
The soil around a lilac bush was watered with a solution containing
radioactive phosphorus. Several hours later, radiation was detected in it’s
branches. Through which structures did the radioactive phosphorus read
the branches?
A. stomata
B. guard cells
C. xylem vessels
D. phloem vessels
Answer:
I think its D
Explanation:
GIVING BRAINLIEST!!!!
What is a similarity between the temperate climate zone and polar climate zone?
A) Both of the climate zones have warm and hot weather and lots of precipitation.
B) In both polar and temperate zones, the temperature of the warmest month is about 18°C.
C) The temperature can get to 0°C in both temperate and polar climate zones.
D) The temperate and polar climate zones both usually have 150 cm of precipitation.
In both the polar and temperate zones, the temperature of the warmest month is about 18°C. So, the correct option is B.
What are Polar and Temperate zones?Temperate regions are defined as regions with mild temperatures that lie between the subtropical and polar regions where the two regions between the Tropic of Capricorn and the Antarctic Circle or the Tropic of Cancer and the Arctic Circle are called temperate regions.
The polar region is defined as the area around the North Pole or the South Pole, where the North Polar Region consists mainly of flotation and pack ice, 7–10 feet (2–3 m) thick which floats on the Arctic Ocean and is surrounded by land. In both zones, the temperature of the warmest month is about 18°C.
Therefore, the correct option is B.
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What is cellular respiration? Use complete sentences to explain how the mass of carbon is conserved during cellular respiration. (10 points)
Answer:
Please give me brainlist.
Explanation:
Cellular respiration is a chemical process which breaks downs a 6 carbons compound into 3 carbon dioxide molecules and water molecules in the presence of oxygen and produces a huge amount of energy in form of ATPs.
Cellular respiration is a chemical process which breaks downs a 6 carbons compound into 3 carbon dioxide molecules and water molecules in the presence of oxygen and produces a huge amount of energy in form of ATPs.
What is Cellular respiration?In the presence of oxygen, cellular respiration is a chemical process that converts a substance with six carbons into three carbon dioxide and water molecules and enormous amounts of energy in the form of ATPs.
Simply put, cellular respiration is a sequence of metabolic processes that happen inside a cell. For usage in the energy-demanding processes of the cell, biochemical energy is extracted from organic materials.
It is stored in energy-carrying biomolecules (such as adenosine triphosphate or ATP).
Therefore, Cellular respiration is a chemical process which breaks downs a 6 carbons compound into 3 carbon dioxide molecules and water molecules in the presence of oxygen and produces a huge amount of energy in form of ATPs.
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In mice, black color (B) is dominant to white (b). At a different locus, a dominant allele (A) produces a band of yellow just below the tip of each hair in mice with black fur. This gives a frosted appearance know as agouti. Expression of the recessive allele (a) results in a solid coat color. If mice that are heterozygous at both loci are crossed, ___ out of 16 will be black in color.
Answer:
3
Explanation:
Heterozygous mice at both loci would be BbAa genotype.
B (black) is dominant over b (white) but the presence of A results in agouti.
Crossing two heterozygous:
BbAa x BbAa
Progeny
9 B_A_ - Agouti
3 bbA_ - agouti
3 B_aa - Black
1 bbaa - white
Hence, 3 out of 16 progeny will be black in color.
See the attached image for the Punnet's square analysis of the cross.
Even though mutations are relatively rare, they are still a concern in bacteria populations. Why?
Answer:
Mutations can provide resistance to antibiotics If we were to treat the bacterial population with that specific antibiotic, only the resistant bacteria will be able to multiply; the antibiotic selects for them. These bacteria can now increase in numbers and the end result is a population of mainly resistant bacteria.
Explanation:
Even though mutation is rare in bacteria, it is still important to be concerned about bacteria. The reason is that if any mutation happens that converts the bacteria into antibiotic-resistant bacteria, then this would be harmful.
What is mutation?Mutation is a phenomenon in which a change is seen in an organism's genome. It may be induced by chemical factors, environmental factors, etc. The mutation may be positive or negative.
In a population, evolution is seen due to mutation. It is one of the factors behind evolution. In bacteria, the mutation happens too. If any sort of mutation happens that makes them antibiotic-resistant, then it would be harmful for humans. Humans take antibiotics that destroy harmful bacteria. If these bacteria mutate their genetic constitution and become resistant, a higher dose of antibiotic will be required next time to destroy such harmful bacteria.
Hence, mutations in bacteria are harmful even though they are rare.
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Please answer these questions but if u don’t know the answer then don’t say anything pleaseeee help!!!thank u.
In order:
electrons
electrons
protons
4
3
3
The amount electrons and protons balance out their charges, leading the charge to be 0
This answer depends on what you learned in class:
They discovered the presence of neutrons after experimenting.
or
They realized that these neutrons had to exist to make a stable nuclei and balance out the mass.
(both answers are correct, so you can combine them if you want)
Pls help I’m literally so confused
Answer:
IT IS D
Explanation:
i did this and it was d
Answer:
D
Explanation:
How do ants communicate?
Answer:
They excrete pheremones that notify the colony of a situaiton.
Explanation:
Behavior is produced in living things through the combination of which 2 major influences
Answer:
abilities, gender, race and culture etc
What process occurs immediately after fertilization?
A. Meiosis
B. Differentiation
C. Cell division
Answer:
C
Explanation:
Answer:
C. Cell division
Explanation:
Fertilization results in the creation of a zygote.
what two types of cells contain chloroplast
Answer:
Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis
Explanation:
Which organism would most likely be labeled a tertiary consumer?
Answer:
OHHHHH oKkkkkkk i didnt think that said organism u cant say what i thought it said on brainley but remove the n and i
Explanation:
The kidneys, ureters, urethra, and bladder are organs found in which system
Answer:
Urinary System
Explanation:
The organs of the Urinary System include the
kidneys, renal pelvis , ureters, bladder and
Ureethra.
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How did New Zealand's early ecology affect which traits were selected for/against in the kakapo's ancestors?
Answer:
Hairy skin which helps kakapo's ancestors to live in harsh climate of New Zealand.
Explanation:
New Zealand's early ecology greatly affected the population of kakapo's ancestors because the environmental conditions for kakapo's ancestors are favourable and there is no invasive species which reduces the population of kakapo's ancestors near to extinction. The traits that were selected for the kakapo's ancestors provides ability to live and survive in the temperate and subtropical climates of New Zealand. The flightless trait in this bird is also responsible for its extinction because this bird can't run away from their predators.
Nuclear reactors do not create energy, instead they convert
Answer: The answer is A. Hope this helped
Elements that have the same number of protons but a different number of neutrons in the nucleus are called
A periods.
B metalloids.
C groups.
D isotopes.
4. In science, most concepts are related to other concepts. Which of the following is most closely related to the Law
of Conservation of Mass?
A. when rocks are deposited in layers, the oldest layer is on the bottom
B. pressure from a gas increases as the volume decreases
C. energy can neither be created nor destroyed
D, the force of gravity decreases as distance is increased
Answer:
C. energy can neither be created nor destroyed
Explanation:
The law of conservation of mass states that in a chemical reaction mass can neither be created nor destroyed. Similarly, the law of conservation of energy states that the amount of energy in an isolated system is conserved ie. the amount of energy can neither be created nor destroyed, but instead changes form.
The populations of which organisms will most likely increase as a result of a disease that suddenly reduced the population of Texas horned lizards?
F Grasses and ants
G. Ants and grasshoppers
H Grasshoppers and Texas cottonmouths
J. Texas cottonmouths and red-shouldered hawks
Answer:
G
Explanation:
It just is
Texas horned lizards primarily feed on ants, so if their population is suddenly reduced due to disease, the populations of their prey (ants) will likely increase.
What will they lead to if the population growth declines ?This, in turn, can lead to an increase in the populations of other organisms that depend on ants for food, such as grasshoppers.
Texas horned lizards are known to feed primarily on ants, and as predators, they play an important role in regulating the populations of their prey. When the population of Texas horned lizards is reduced, the ant population can increase, as there are fewer predators consuming them. This increase in ant population can lead to an increase in the populations of other organisms that depend on ants for food, such as grasshoppers.
Grasshoppers are herbivores that feed on vegetation, but they also feed on ants and other small insects. When the population of ants increases due to the reduction in Texas horned lizard population, the population of grasshoppers may also increase as they have more food resources available.
In contrast, Texas cottonmouths and red-shouldered hawks do not directly depend on Texas horned lizards as a food source, so their populations are unlikely to be significantly affected by a reduction in the population of Texas horned lizards.
Therefore, the populations of grasshoppers and ants (option G) are most likely to increase as a result of a disease that suddenly reduces the population of Texas horned lizards.
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Explain why routine physical exams can be considered “preventive medicine.”
Answer:
Explanation:
The purpose of the routine preventive exams is to identify potential health problems in early states when they may be easier to treat.
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Answer:
ribosomes
Explanation:
spamofletters ifjdndndndkxk
How does the circulatory system work as a defense system?
Answer: It provides protection of the body by white blood cells, antibodies, and complement proteins that circulate in the blood and defend the body against foreign microbes and toxins. Clotting mechanisms are also present that protect the body from blood loss after injuries.
Answer:
The human circulatory system has a complex network of blood vessels that reach all parts of the body. This extensive network supplies the cells, tissues, and organs with oxygen and nutrients, and removes carbon dioxide and waste compounds.
hope this helps!
Explanation:
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Answer: Ultraviolet waves have short not long wave lengths
Which of the following statements best describes what will mostly likely occur to the mouth populations in the image below?
Answer:
a. The light moths will be captured by the predators more easily than the dark moths and the population of dark moths will rise.
Explanation:
The light colored moths are more easily seen by the predators and therefore they are captured by them Dark colored moths are not seen by the predators easily because they disappear in the darkness. The population of dark moth will rise eventually because they are not captured by the predators.
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Answer:
I think the answer would be the fourth one.
What is the main function of the nervous system?
A. regulating sleep
B. preventing accidental poisoning
C. Controlling the body's actions and reactions
Answer:Controlling the body's action's and reactions.
Explanation:When you get nervous, your body reacts to it.
Answer:
C. Controlling the body's actions and reactions
Explanation:
the nervous system is the center of all mental activity including thought, learning, and memory.