Answer:
The initial effect of a stimulus on a sensory receptor is a small, local change in membrane potential called a(n) receptor potential.
Explanation:
The process used by sensory receptors to transform the physical energy of the sensory stimulus into action potentials, the fundamental unit of information in the nervous system, is called sensory transduction. The entrance of positive charges towards the interior (mainly Na +), will cause a depolarization; while if there is an exit of positive charges from the interior (mainly K +) then hyperpolarization will occur. This change in membrane potential is called the receptor potential. A receptor potential is then a local potential that can sometimes represent the only response that results from the transduction process, for example in the taste sensory cell.
What is the key purpose of conservation biology?
Answer:
Conservation biology as a discipline aims to provide answers to specific questions that can be applied to management decisions. The main goal is to establish workable methods for preserving species and their biological communities.
What are the methods of waste disposal ? Write in briefly.
Answer:
Methods of waste disposal are :-
Biogas plant: - Biodegradable material is used to produce biogas and manure.
Sewage treatment plant: The drain water is treated at plants before adding it to river.
Land filings: - The waste are buried in low-lying areas and compacted with bulldozers.
Composting: - Organic waste are filled in compost pit to make compost for plants.
Recycle: - This means that you collect plastic, paper, glass and metal items and recycle these materials to make required things instead of synthesizing or extracting fresh plastic, paper, glass or metal. In order to recycle, we first need to segregate our wastes so that the material that can be recycled is not dumped along with other wastes.
Reuse: - This is actually even better than recycling because the process of recycling uses some energy. In the ‘reuse’ strategy, you simply use things again and again. Instead of throwing away used envelopes, you can reverse it and use it again. The plastic bottles in which you buy various food-items like jam or pickle can be used for storing things in the kitchen.
Refuse: -This means to say No to things people offer you that you do not need. Refuse to buy products that can harm you and the environment, say No to single-use plastic carry bags.
Repurpose - This means when a product can no more be used for the original purpose, think carefully and use it for some other useful purpose. For example, cracked crockery, or cups with broken handles can be used to grow small plants and as feeding vessels for birds.
construct an explanation based on evidence for how the structure of DNA determines the structure of proteins which carry out the essential functions of life through systems of specialized cells
Structure and Function. All cells contain genetic information in the form of DNA molecules. Genes are regions in the DNA that contain the instructions that code for the formation of proteins, which carry out most of the work of cells.
identify three plant tissues in images
A diagram shows a potato producing new tubers. Buds on the parent plant grow into stems that grow downwards called stolons. The end of each stolon develop in to new tuber.
1) Give two pieces of evidence which show that this is an asexual method of reproduction.
2) Explain why all the new tubers will be genetically identical.
Answer:
See the answer below
Explanation:
Evidence that shows that the illustration is an asexual method of reproduction:
1. New tubers were produced without any signs of flowering or fertilization
2. Parent plant was produced from a vegetative part ( a tuber).
All the new tubers would be genetically identical because they were produced without fertilization. They all developed from the division of some of the vegetative cells (mitosis) of the parent plant. Hence, they are not only genetically identical with themselves but also with the old tuber that produced the parent plant.
At the back of the brain is the __________ which is primarily responsible for processing information about light and movement
Answer:
Cerebellum
................
indian National congress was founded. _______
a) 1877
b) 1915
c) 1885
d) 1947
Answer:
{Indian National congress was founded in 1885.}
"Hope this Helpful."10 differences between animal cells and plant cells
Answer:
Following are the difference to the given question:
Explanation:
Plant cells have a wall of a cell, while cells of animals wouldn't. Cell membranes offer plants support and shape.Chloroplasts in plant cells do not occur, however, in animal cells. Chloroplasts allow plants can grow things via photosynthesizing.Plant cells typically get a vacuole(s) that is one or even more big, whereas animal cells are vacuous, whether any.Large vesicles assist shape the plant and enable food and water to be store for future use.In animal cells, the storing function takes a smaller part and the vacuoles, therefore, are smaller.A plant cell is square in its structural way and an animal cell is often spherical and irregular.The cell of a plant has a vesicle in its big form which is significantly smaller than the plant cell, as well as the animal cell was the or more vacuoles. In general, a vacuole is a storage area for the cells to store water.There is no chloroplast inside the animal cell. Chloroplast is a plant cell that produces photosynthesis from its food. The plants have a green color.The nucleus is located throughout the cell of the plant on the other edge of the peripheral cytoplasm, while the nucleus is in the animal's core.Plant cells store food of starch while animal cells store food of glucose.The mitochondria in the plant are fewer and also have tube cristae, whereas the animal cells have grown in various.Place the tiles in order so that they describe a population undergoing natural selection
Not all tiles will be used
Answer:
A new species of hawk that preys on rabbits is introduced to the habitatThe hawks have more success in catching rabbits with white fur because they are easier to see in the habitatThe rabbits´ white fur mutate so their fur is tan or brownThe next generation of rabbits has a higher proportion of individuals with tan and brown fur.Explanation:
Natural selection is an evolutive force that can act favoring an allele or against it, according to how it affects the fitness of individuals. Natural selection selects beneficial alleles and increases their frequency in the population.
When many organisms in a population sharing the same trait die, it is because they did not have good fitness, so they were not adapted to the environment and its pressures. The alleles coding for that trait were not good for the fitness of the animals, so they do not get to survive.
These individuals die before reproducing, so they could not transfer their genetic charge to the following generation. Eventually, the alleles coding for the trait will decrease in the population, probably near zero. Natural selection is acting against this phenotype. Other alleles will be beneficiated, and their frequency in the population will increase.
This change in alleles frequency is what we call adaptation.
Natural selection results in adaptation, which means the increase of the aptitude phenotype. Aptitude is the contribution of each genotype to the next generation.
In many cases, adaptations can be correlated to environmental factors or selective pressures applied by other organisms or habitats.
Let us remember that a mutation is a change or alteration in DNI sequences that introduce new variants. Many of these are eliminated, but some of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection.
So, in the exposed example, we are focussing on rabbits populations.
• The selective pressure or modeling environmental factor is predation by the introduced hawk.
• The rabbits´ response to predation is the survival of only those that carry mutations ⇒ tan or brown fur
• Natural selection benefits these mutations.
• Tan or brown rabbits survive and increase their fitness.
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Answer:
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Describe the digestive system in human body!
[tex] \green{\huge{\red{\boxed{\green{\mathfrak{QUESTION}}}}}} [/tex]
Describe the digestive system in human body
[tex] \huge\green{\boxed{\huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}}}[/tex]
ᴅɪɢᴇꜱᴛɪᴏɴ ɪɴ ʜᴜᴍᴀɴꜱ ᴏᴄᴄᴜʀ ᴛʜʀᴏᴜɢʜ ᴅɪꜰꜰᴇʀᴇɴᴛ ꜱᴛᴀɢᴇꜱ-
[tex]{\bf{Ingestion:}}[/tex]: It is the process of taking in food.It involves taking in food through the mouth and eating it.
[tex]{\bf{Digestion:}}[/tex]: It is the breakdown of food into simpler, soluble form with the help of digestive juices made in the body.
[tex]{\bf{Absorption:}}[/tex]: In absorption, food in the soluble form passes into the body fluids such as blood.
[tex]{\bf{Assimilation:}}[/tex]: Assimilation is the process by which absorbed nutrients are utilized by the body.
[tex]{\bf{Egestion:}}[/tex]: It is the process of elimination of undigested solid parts of the food.
______________________________________
~~~~~~~~~~ᴅɪɢᴇꜱᴛɪᴏɴ ɪɴ ᴛʜᴇ ᴍᴏᴜᴛʜ!
Food is taken in or [tex]\tt\bf\blue{ingested}[/tex] through the mouth.Digestion begins inside your mouth when you chew the food.
The water in your mouth is digestive juice called [tex]\tt\bf\blue{Saliva}[/tex]
.
It is secreted by the three pairs of the [tex]\tt\bf\green{Salivary \: Glands}[/tex] in your mouth.
Chewing breaks down the food into small pieces and mixes it with saliva.This process is called [tex]\tt\bf\green{Mastification}[/tex]
______________________________________
~~~~~~~~ᴅɪɢᴇꜱᴛɪᴏɴ ɪɴ ᴛʜᴇ ꜱᴛᴏᴍᴀᴄʜ!
After the food is swallowed, it slides down the pharynx into the [tex]\tt\bf\purple{Oesophagus}[/tex]
(foodpipe).
The oesophagus leads from your mouth to the stomach.It is made up of muscles.
These muscles gently push food down to your stomach in a wave like action called [tex]\tt\bf\red{Peristalsis}[/tex]
______________________________________
ᴀʙꜱᴏʀᴩᴛɪᴏɴ ɪɴ ᴛʜᴇ ꜱᴍᴀʟʟ ɪɴᴛᴇꜱᴛɪɴᴇ!
The digested food is then absorbed by the small intestine. Absorption of the food occurs through thousands of small finger-like projections in the inner wall of the small intestine.
These projections are known as [tex]\tt\bf\pink{Villi}[/tex] increse the surface area of absorption of digested food.
Each villus has a network of fine blood cappilaries close to the surface.
The food absorbed on the surface of the villus passes into the blood in tge cappilaries.
______________________________________
~~~~~~~~~~~~ ᴀꜱꜱɪᴍɪʟᴀᴛɪᴏɴ!
The food absorbed into the blood is transported to different parts of the body.It is used to provide energy and materials for growth and repair of the body tissues.This is the final stage of digestion and is known as [tex]\tt\bf\red{Assimilation}[/tex]
______________________________________
~~~~~~~~~~~~ ᴇɢᴇꜱᴛɪᴏɴ!
Not all the food you eat is digeated & absorbed.The food that cannot be digested moves from the small intestine into a wide tube called the [tex]\tt\bf\green{Large \: Intestine}[/tex]
The waste food is now almost solid is stored in the last part of the large intestine called the [tex]\tt\bf\green {Spectrum}[/tex]
It then passes away from the body through [tex]\tt\bf\green{Anus}[/tex]
______________________________________
[tex] \red \star{Thanks \: And \: Brainlist} \blue\star \\ \green\star If \: U \: Liked \: My \: Answer \purple \star[/tex]
list any 10 common good honey flora.
Answer:
spring vegetation. such as hazel snow drops,primroses,saffron willow,hellsbore,Heather, wild cherry,dandelion,fruit tree,
Explanation:
under the classification
Felicity draws this diagram on the board to explain one
of Mendel's experiments for her classmates. She says
that it shows the cross between two first-generation
offspring. What is the error in her diagram?
All
peas should be green.
All peas should be yellow-green.
One pea should be green and three peas should be
yellow.
O One pea should be yellow and three peas should
be green.
Answer:
The right answer is C
Explanation:
Answer:
The right answer is C
Explanation: Just got it right on edge 2022
The use of another orga....
Answer:
C biological control.
Explanation:
Biological control because a natural organism is controling pest. Unlike using pesticides. That would be chemical control. lol
Answer:
C. Biological Control
Explanation:
The use of biological beings such as organisms to control pest andm uch more is considered to be Biological Control
Brian is attempting to determine whether it makes sense to think that the human need to belong and to establish relationships has an evolutionary basis. Based on the principles of natural selection, Brian knows he could support this idea if there was evidence that
Answer:
I DIDNT UNDER STAND
Explanation:
SORRY
Which of the following is NOT a type of biological weathering?
A. Carbon dioxide dissolving into clouds and forming acid rain.
B. Animals digging burrows.
C. Lichen absorbing minerals from stone.
D. Plants growing roots into concrete.
Hurry!!
Animals in Cestoda have: Group of answer choices septa and parapodia proglottids and no digestive system a pharynx and gastrovascular cavity a water vascular system
Answer:
no digestive system
Explanation:
Animals in Cestoda have no digestive system so they takes nutrients through its cell wall. Cestodes have no digestive tract so they absorb nutrients from the host across the body wall. Most of the flatworms have conspicuous digestive systems while on the other hand, the digestive system of turbellarians consists of mouth, pharynx, and intestine so we can conclude that Cestoda have no digestive system to absorb nutrients like other organisms.
Mengapakah penggunaan mikroskop
elektron penting dalam mengkaji sel?
Answer:
Mikroskop elektron mampu membesarkan saiz sel dengan kuasa gandaan yang tinggi
Which is not an affect of estrogen in women?
A.Regulates menstruation
B.Regulates egg development
C.Regulates no aspects of pregnancy
D.Regulates egg development and menstruation
PLS HELP 20 PTS
Write a supported hypothesis of how the body would react if the peripheral nervous system was shut down while the central nervous system continues to function.
Explanation:
The real magnitude of this challenge can perhaps be best judged by considering the structural and functional complexity of the human brain and the bewildering complexity of human behavior. The human brain is thought to be composed of about a hundred billion (1011) nerve cells and about 10 to 50 times that number of supporting elements or glial cells. Some nerve cells have relatively few connections with other neurons or with such effector organs as muscles or glands, but the great majority receive connections from thousands of other cells and may themselves connect with several hundred other neurons. This means that at a fairly conservative estimate the total number of functional connections (known as synapses) within the human brain is on the order of a hundred trillion (1014). But what is most important is that these connections are not random or indiscriminate:
They constitute the essential "wiring" of the nervous system on which the extraordinarily precise functioning of the brain depends. We owe to the great neuroanatomists of the last century, and especially to Ramón y Cajal, the brilliant insight that cells with basically similar properties are able to produce very different actions because they are connected to each other and to the sensory receptors and effector organs of the body in different ways. One major objective of modern neuroscience is therefore to unravel the patterns of connections within the nervous system—in a word, to map the brain.
The wavelike muscular squeezing of the esophagus, stomach, and small intestine that pushes their contents along is called _____. chewing
Answer:
Peristalsis
Explanation:
Peristalsis is the involuntary contraction of certain muscles. These contractions cause the contents of the muscle/canal to move,
What is the difference between food chains and food webs?
1. Food webs show the flow of energy from producers to consumers, and food chains show the flow of energy from consumers to producers.
2.Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.
3.About ten percent of the energy is passed on to the next trophic level in food webs, but in food chains, about ninety percent is passed on to the next trophic level.
4.Heat is lost when energy is passed on to the next trophic level in food chains, but in food webs, heat is not lost when energy is passed on to the next trophic level.
Answer:
2. Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.
Explanation:
A food chain is a single chain representing who eats whom in a system of organisms. A food web is a system of food chains, involving overlapping pathways of different foodchains.
Answer:
2.Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.
Explanation:
A food chain shows only a targeted path, while a food web shows a more realistic path. See attached photos.
First picture: Food Chain: Notice how it only shows one path from producer to tertiary consumer.
Second picture: Food Web: Notice the many pathing that connects for certain organisms in the food web. It shows a more realistic distribution of energy in a real world scenario.
Which of the following describes wetlands?
A. separated into photic and aphotic zones of still water with large
amount of vegetation and fish
B. located between aquatic and terrestrial environments and
reduces flooding and filters water
C. filled with running water and don't allow the collection of algae,
and are home to small crustaceans
D. collected salt water that is located by the coast and filled with
calcified remains of cnidarians
Answer:b
Explanation:
Wetlands are located between aquatic and terrestrial environments and reduces flooding and filters water. Therefore, option (C) is correct.
What are wetlands?Wetlands are defined as areas where water either completely covers the soil or is present either at or near the surface of the soil throughout the entire year or for varying amounts of time at different times throughout the year, including during the growing season.
Our water is cleaned by wetlands because they filter out sediments, other pollutants, and even chemical contaminants. Additionally, wetland areas act as a filter for and a processing facility for excess nutrients that may run off from agricultural and development sites. Historically, people have referred to wetlands as "the kidneys of our watershed."
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turnips are root vegetables. turnips have been selectively bred from a wild plant called field mustard. field mustard plants do not have big, round roots like turnips. explain how turnips have been selectively bred from field mustard.
can anyone help me out? thx
the turnips have a model called Turnip's model that's why the turnips have been selectivity breed from field mustard.
Turnip is a type of root vegetables that belongs to the mustard family.
Turnips are ready to harvest 40 to 55 days after planting. If harvesting the leaves, they are ready when they reach four to six inches in height. If only harvesting the leaves, cut them from the plant when they reach the desired size, leaving one inch of leaves above the crown of the plant. More leaves will grow in their place.
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Scientists base many of their investigations on questions that test accepted theories. Which outcome of an investigation would cause a scientist to ask a different question? A) The observed results are different from the expected results
B) The investigation had many sources of error. C) Another scientist proposed the same theory.
D) The expected results could be explained in different ways.
Answer:
A scientist would ask a different question when he or she founds that the observed results are different from the expected results.
Explanation:
When one expects something and gets something else, then one is having a big enough cause to ask for new questions and initiate a new investigation. Scientific investigation is the process by which the researchers and scientists use a planned approach to answer questions regarding the world around us.(06.01 MC)
When Linnaeus began classifying organisms in the 1700s, he categorized them as plant, animal, or mineral. These kingdoms were later revised to exclude minerals and expanded to include animals, plants, fungi, protists, and bacteria. Which of the following best explains a reason for this change? (2 points)
Group of answer choices
As new organisms were discovered, new kingdoms were created to sort them based on ability to interbreed.
It was discovered that the organisms in each of the five kingdoms have a different method of obtaining nutrients and are therefore fundamentally different.
Technological advances led to the discovery of single-celled organisms and increased our understanding of relationships between organisms.
Genetic research led to the discovery that each of these five kingdoms has a unique evolutionary ancestor.
Answer:
It was discovered that the organisms in each of the five kingdoms have a different method of obtaining nutrients and are therefore fundamentally different.
Explanation:
New kingdoms were needed that reflected our growing knowledge of the differences between living organisms.
A person with curly hair has children with a person who has straight hair. All children in the F1 generation have wavy hair. What kind of inheritance pattern explains this phenomenon? What would the F2 generation look like, i.e., what would the genotype and phenotype ratios be if two wavy haired individuals had children
Answer:
The correct answer is -
a. incomplete dominance
b. f2 = 1:2:1 = straight:wavy:curly
Explanation:
In this question, it is given that a person with curly hair and a person with straight hair has all children with wavy hair. It means that the heterozygous offspring in F1 has blended traits which means this trait shows incomplete dominance. Suppose C is curly hair c is straight hair then f1 offspring will have Cc (wavy hair)
now in F2:
cross: Cc cross with Cc
gametes: C, c
Punnett square:
C c
C CC Cc
c Cc cc
Thus, the genotype and phenotype ration would be :
genotype: 1:2:1 = CC:Cc:cc
phenotype: 1:2:1 = straight:wavy:curly
"All honey flora are plants, but all plants are not honey flora". Justify.
Answer:
Beekeeping is affected by adverse climatic conditions and availability of floral resources. This study aimed to survey and characterize the flora in São João do Piauí, a semi-arid region in Piauí, Brazil, and to identify species providing resources to bees. Flowering plants were observed for 18 months, and records were taken of flowering date, growth habit, visitation and resources collected by bees. Melissopalinological analysis of honey produced in the area was performed. A total of 67 flowering plant species were recorded, of which 49 were considered as bee plants, with a predominance of herbs and shrubs. The low rainfall reduces the number of flowering species, which makes important the conservation and multiplication of species which bloom in dry season, such as Ipomoea glabra, Myracrodruon urundeuva, Sida cordifolia and Ziziphus joazeiro, as well as species that contribute to honey production such as Mimosa tenuiflora, Mesosphaerum suaveolens and Croton sonderianus.
Keywords:
nectar; pollen; floral resources
Apakah hubungan antara keamatan cahaya dengan kadar transpirasi?
Answer:
Kadar transpirasi meningkat apabila keamatan cahaya meningkat .
In DNA replication, the resulting daughter molecules contain one strand of the original parental DNA and one new strand. What is the explanation for this phenomenon
Answer:
This question lacks options, options are: A) DNA replication is semiconservative. B) DNA replication is conservative. C) RNA synthesis is conservative. D) DNA replication is not conservative. The correct answer is A.
Explanation:
Watson and Crick proposed the semi-conservative hypothesis (later demonstrated by Meselson and Stahl in 1957), according to which new DNA molecules formed from an old one have an old and a new strand. This replication model assumed that the double helix DNA separates its two strands and each one serves as a template to synthesize a new strand following the complementary rules of nitrogenous bases. This model was called Semiconservative, since the two newly synthesized double helices have an old strand (an old half) and a new strand (a new half).
The process of the formation of new DNA from the older DNA is called replication.
The answer to the following question is semi conversation of DNA.
In the replication, there are two-strand in which one stand is template strand and the other stand is called leading strand. Both the strands act as a template strand and is being copied by the DNA polymerase.
These template strands formed the new DNA and joined it by the DNA ligase to complete it.
Hence, In DNA replication, the resulting daughter molecules contain one strand of the original parental DNA and one new strand. This phenomenon is known as semi-conservation.
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