B2) Impermeable walls
Villi together with it's microvilli tremendously increase surface area of absorption. And hence supports effective absorption of nutrients into blood. Villi have permeable membranes . Thus, nutrients can easily get their way through them.
The major pathway of communication between the right and left hemispheres is the.
Answer:
corpus callosum.
..............
Answer:
Corpus callosum
Explanation:
Actually, the left and right brain hemispheres may communicate with one another because to a thick bundle of nerves called the corpus callosum (Latin for "difficult body"). The corpus callosum, which is divided into several sub regions, connects various sections of the hemispheres. The corpus callosum is subdivided into the rostrum, genu, body, and splenium from anterior (front) to posterior (back). The brain's left and right frontal lobes are linked by the rostrum and genu. The hemispheres of the temporal and occipital lobes are connected by the body and spleen.
With over 200 million axons, the corpus callosum is the brain's biggest fiber bundle. It is made up of tracts of white matter fibers called commissural fibers. It has a role in several bodily processes, including the communication between the:
Cerebral hemispheres.Motion of the eye and vision.keeping the right balance of arousal and focus.The localization of touch.The different parts of our visual field, which independently process pictures in each hemisphere, are combined by the corpus callosum, which plays a crucial role in vision. By connecting the language centers of the brain with the visual cortex, it also enables us to recognize the objects we view. In order for humans to find touch, the corpus callosum also transmits tactile information—which is processed in the parietal lobes—between the two hemispheres of the brain.
How many instances of cell-cell communication are involved in the motor component of a visceral reflex arc?.
Two instances of cell-cell communication are involved in the motor component of a visceral reflex arc.
What is a visceral reflex arc?The visceral reflex arc can be defined as a part of the autonomic nervous network required during involuntary muscle responses.
The visceral reflex arc involves afferent sensory neurons and the stimulation of postganglionic neurons to target cells.
In conclusion, the number of cell interactions in the visceral reflex arc is equal to two (2).
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How does biodiversity affect ecosystem stability?
A. Not all ecosystems are effected in the same way
B. Biodiversity has no effect on stability
C. More biodiversity increases stability
D. More biodiversity decreases stability
The ecology is absolutely necessary for biodiversity. Ecosystem stability also rises as a result of increased biodiversity.
What do you mean by biodiversity?
The term "biodiversity" is used to describe the variety of species that can be found on earth. It can include things like plants, animals, bacteria, fungi, and microbes. The diversity of life on earth is immense; while many species are still waiting to be discovered, many more have already gone extinct. The ecosystem is composed of every single living thing. It also covers their surrounding environment and how people interact with them.
The ecosystem depends heavily on the various species. Therefore, the ecosystem's ideal balance is impacted when a single species goes extinct or is lost. Plants use the energy from the sun as part of the ecosystem's cycle.
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_____provides a visual tool to show any health related traits that were passed down through generations
The visual tool that is used to show any health related traits that were passed down through generations is; Pedigree Chart
What is a pedigree chart?There are different means to try to medically check some historical genetics from one generation to another.
However, in this case of a visual tool, the only one we can use is called a pedigree chart. This is because a pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors from one generation.
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The processes of meiosis and fertilization help ensure the survival of the
species by providing each generation with the same number of - *
chromosomes
body cells (somatic)
gametes (sex cells)
offspring
Answer:
providing same number of chromosomes
Explanation:
each gamete has similar number of chromosomes which when fused during fertilization provide the same number of chromosomes
Which of the following is considered the process of budding?
A. Propagating the desired variety of shrubs or trees.
B. Growing of embryo from the egg cell without fertilization.
C. A fragment of the organism separated from the body, develops into an entire organism.
D. Pinches off the parent and grows into an individual.
Answer:
C. A fragment of the organism separated from the body, develops into an entire organism.
budding is when an organism exists [well it's born from asexual [meaning non-sexual reproduction] reproduction] by separating off from a parent organism
hope this helps!! :)
What do centrioles help animal cells
with?
A. cell digestion
B. cell motility
C. cell division
D. cell defense
Answer:
cell motility
Explanation:
Answer: C. cell division
Explanation:
your instructor gives you an unknown organ for you to examine and identify through microscopy. what should you do first with the sample?
When examining an unknown organ and identifying it through microscopy, it is required fix it with preservative.
What is a preservative?A preservative is a specific chemical compound used to conserve a biological sample.
In microscopy, preservatives are very useful to study the anatomy of body parts and their cells.
In conclusion, when examining an unknown organ and identifying it through microscopy, it is required fix it with preservative.
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he Red Sea is a body of water formed where the African and Arabian plates are separating from one another. This sea is an example of a landform created by __________ movement.
A.
lateral plate
B.
convergent plate
C.
divergent plate
D.
transform boundary
The Red sea is an example of a landform created by a divergent plate. Thus, the correct option is C.
What are Divergent plates?Divergent plates may be defined as a location where two tectonic plates are locomoting away from each other, vacating a void between them that can be sufficed with magma.
Divergent plate movements are mainly responsible for separating the bodies of African and Arabian water from one another.
Therefore, it is well described above.
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Signal sequences that direct proteins to the correct compartment are Select one: a. encoded in the amino acid sequence and sufficient for targeting a protein to its correct destination b. added to proteins through after translation c. always removed once a protein is at the correct destination d. added to a protein by a protein translocator
Signal sequences that direct proteins to the correct compartment are b. added to proteins through after translation.
What is protein?It should be noted that protein means large biomolecules that are found in the body and are important for chemical reactions.
In this case, signal sequences that direct proteins to the correct compartment are added to proteins through after translation.
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Which two dog breeds originally come from a canadian province?.
Answer:
Tahltan bear dog, the Canadian Inuit dog,
Explanation:
Mutations are random changes to the structure of a gene. the likelihood of a mutation occurring can increase if a cell is
when mutations in a gene alter the sequence of amino acids,
can be
altered.
reset
next
Mutations are random changes to the structure of a gene. the likelihood of a mutation occurring can increase if a cell is when mutations in a gene alter the sequence of amino acids, can be altered.
What occurs whilst a random mutation occurs?What is generally known as "random mutation" does now no longer in truth arise in a mathematically random pattern. The procedure of genetic mutation is extraordinarily complex, with more than one pathways, concerning multiple systems. Current studies indicates maximum spontaneous mutations arise as mistakes withinside the restore procedure for broken DNA.
These outside sellers of genetic alternatives are known as mutagens. Exposure to mutagens frequently reasons changes withinside the molecular shape of nucleotides, in the long run inflicting substitutions, insertions, and deletions withinside the DNA sequence.
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what started human life on Earth?
Answer:
Explanation:The origin of human beings from far more primitive ape-like precursors is one — just one — of the definitions of “evolution” that the public and the media carry around in their heads. Not surprisingly, the iconic transition from ape to man is the first, second, and third image.
What format is typically followed with
a hypothesis?
A. a long explanation
B. a question
C. if, then statement
Wang
Answer:
C.
Explanation:
A hypothesis is always in the form of an if, then statement.
What phase of mitosis is shown in the
diagram below
Answer:
prophase
Explanation:
1.write the chemical equation for transpiration
2.what is translocation ??,give the chemical equation for translocation
plss help will mark brainlest..
Answer:
1
Explanation:
Write a balanced chemical equation for the reaction of sodium hydroxide solution With solid oxalic acid dihydrate. 2. Calculate the volume of 6M NaOH solution needed to prepare 0.5 L of 0.1M solution by dilution. 3. Calculate the molar mass of oxalic acid dihydrate (H2C2O4.2H2O). 4. Calculate the mass of oxalic acid dihydrate that would neutralize 30. mL of 0.10 M NaOH solution. 5. Name the primary standard used to standardize your base solution.
Which is NOT true about eukaryotic cells?
A. They are larger.
B. They contain ribosomes.
C. They have no nucleus.
Answer:
C
Explanation:
eukaryotic cells do have a nucleus, so it would be wrong to say that they don't have a nucleus.
10. Write the 2 Hardy-Weinberg equations. Use the equation to calculate the percentage of carriers of cystic fibrosis (a recessive disease, you must have two recessive alleles to have the disease) in a population if the frequency of cystic fibrosis births in that population is 9 in 1000.
Using the Hardy-Weinberg equations, the percentage of carriers of cystic fibrosis is 8.19%.
What are the Hardy-Weinberg equations?The Hardy-Weinberg equations describe the relationship between alleles in a population that is fairly constant.
The Hardy-Weinberg equations are given below as;
[tex]p^{2} + 2pq + q^{2} = 1 \\p + q = 1[/tex]
[tex]q^{2} = 0.009\\q = 0.09\\p = 1 - 0.09\\p = 0.91[/tex] Hardy-Weinberg equations
Percentage of carriers = 2pq
Percentage of carriers = 2 * 0.09 * 0.91 * 100 = 8.19%
Therefore, the percentage of carriers of cystic fibrosis is 8.19%.
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This functional group consists of phosphorous bonded to three oxygens and double-bonded to one oxygen. This functional group consists of phosphorous bonded to three oxygens and double - bonded to one oxygen .
Answer:
Functional groups are groups of atoms that occur within organic molecules and confer specific chemical properties to those molecules. When functional groups are shown, the organic molecule is sometimes denoted as “R.” For example, ethanol is typically drawn like this:
In order to condense the structure and focus on the hydroxyl group (the oxygen and hydrogen bound to the second carbon), everything besides the hydroxyl group would replaced with an R, as follows:
Explanation:
Which of the following is TRUE about the role of organisms in biogeochemical cycles?
A. Materials follow a cyclic path in the ecosystem.
B. The end part of every food chain is decomposers.
C. Primary consumers take more energy than Secondary consumers
D. Biotic factors bring back the essential materials to the environment through respiration or decomposition.
Answer:
C.
Explanation:
C. Primary consumers take more energy than Secondary consumers
Hull fouling is a(n) _______ introduction of nonnative species. a. unintentional b. intentional c. unimportant d. land-based please select the best answer from the choices provided a b c d
Hull fouling is an (a). unintentional introduction of nonnative species
Meaning of Hull foulingHull fouling can be defined as an unintentional act that transport species from one place to another by water vessels.
Hull fouling also mean the attachment of species to a water vessel which leads to an unknowing transportation of such species
In conclusion, Hull fouling is an unintentional introduction of nonnative species
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Answer:
a. unintentional
Explanation:
trust nerds
What are the defining characteristics of ray-finned fishes?
Ray-finned fishes possess the characteristics of chordates.
Characteristics of ray-finned fishesThey are a group of fishes known as Actinopterygii in the Chordate phylum.
Thus, they possess the basic characteristics of chordates, such as:
Possession of hollow nerve cordPossession of notochordPossession of post- tailPossession of pharyngeal gill-slitsThis is in addition to basic features of fishes such as lateral lines, swim bladder, etc.
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Imagine that you are preparing to do an experiment in the location pictured below. To prepare for your experiment, you need to gather some data about the location. What are two pieces of qualitative data that you will collect about this location? What are two pieces of quantitative data that you will collect about this location? Be sure to distinguish which data is qualitative and which is quantitative.
Answer:
1. The deepest seas were formed at the break of tectonic plates, such as the Mediterranean.
2. Each sea has a different salinity.
the growth of a plant in size is regulated by a plant hormone. explain
Abscisic acid
Abscisic acid serves as an antagonist to Gibberellic acid. It is also known as the stress hormone as it helps by increasing the plant-tolerance to various types of stress.
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Plant hormones, also known as phytohormones, regulate growth by influencing cell division, elongation, differentiation, and various physiological responses in plants. These hormones include auxins, gibberellins, cytokinins, abscisic acid, and ethylene.
Plants regulate their growth in size through the action of plant hormones, also known as phytohormones. These are chemical messengers produced by various parts of the plant, such as the roots, stems, leaves, and flowers.
There are several types of plant hormones, each with specific roles in growth regulation:
Auxins: These hormones are responsible for cell elongation and differentiation. They promote growth by increasing the flexibility of cell walls, allowing cells to elongate. Auxins are also involved in tropisms, which are growth responses to external stimuli like light (phototropism) or gravity (gravitropism).
Cytokinins: Cytokinins promote cell division and growth in areas such as roots, shoots, and fruits. They play a role in controlling the balance between shoot and root growth.
Gibberellins: Gibberellins are involved in stem elongation, seed germination, and flowering. They stimulate cell division and elongation, leading to increased plant height and size.
Abscisic Acid (ABA): ABA is often called the "stress hormone" because it regulates responses to stress conditions like drought, cold, and salinity. during adverse conditions.
Ethylene: Ethylene is a gas that regulates fruit ripening, senescence (aging), and responses to mechanical stress. It plays a role in processes like leaf abscission (shedding) and root growth inhibition.
Thus, plant hormones, also called phytohormones, control growth in plants by affecting cell division, elongation, differentiation, and a variety of physiological responses.
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Plant cells are different from animal cells in this way:
Answer:
C . Cell wall and Chloropylast is correct answer
Explanation:
Because plants don't move so they have cell walls and chloroplasts but human cell moves so they don't need cell wall
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[tex]\red:\implies[/tex] Cell Wall ; Chloroplasts➥ Plants are autotrophic organisms which manufacture their own food. Plant cells have chlorophyll containing chloroplasts which are involved in the process of photosynthesis. A plant cell is surrounded by cellulosic cell wall which is dead at maturity. Chloroplasts and cellulosic cell wall are characteristics of plant cells only.
Which of the following is not true about the distribution of species? a. A species’ native range does not include areas where it was introduced by humans. b. Some species have a range they inhabit only for breeding. c. Seasonal ranges include areas where species are found for part of the year. d. All the organisms in an ecosystem share distribution patterns.
Answer:
D is the right answer ....
Answer:
d
Explanation:
which one is the odd one out in these sets fern, conifer and moss
Answer:
conifer
Explanation:
Mark as brainlest answerAnswer:
conifer
Explanation:
this is because they have a cone like structure
In what ways are cleavage lines in the skin clinically significant? check all that apply.
In ways are cleavage lines in the skin clinically significant stretching of the pores and skin at some point of being pregnant or severe weight benefit will motive stretch marks alongside those strains.
What is the importance of cleavage strains?It is critical for fitness specialists to apprehend cleavage line guidelines due to the fact an incision made parallel to the cleavage strains is much less in all likelihood to hole than an incision made throughout them.
Cleavage strains are topographical regions at the frame in which the collagen has a tendency to be thinner that's critical for surgeons to recognize in order that they make incisions parallel to the ones strains to enhance healing.They are surgically critical due to the fact any technique ensuing in a reduction perpendicular to a cleavage line may also gape and put off healing.Read more bout the cleavage lines :
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Which of the following is the best example of non–point source pollution?
A.
oil spill from a ship
B.
sewage water outlet
C.
runoff from a town
D.
wastewater from a factory
Answer:
C
Explanation:
Explain in your words the light-dependent
reaction and the light-independent reaction
Answer: In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.
Explanation: