Answer:
A) mucous
Explanation:
The myenteric plexus is located in which layer of the alimentary canal?
A. Mucous
B. Serosa
C. Sumucosa
Wall of the alimentary canal contains four tissue layers which are
✓ the mucosa
✓ submucosa
✓muscularis
✓serosa.
The mucosa can be regarded as innermost tunic of the wall, which
serves as lines in the lumen of the digestive tract. It contains epithelium, which is an underlying loose connective tissue layer, and it reffered to as " lamina propria" along with thin layer of smooth muscle that is reffered to as" muscularis mucosa" .The myenteric plexus is found in between longitudinal layers as well as circular layer of the muscularis externa. It serves as the one that regulate neuronal intestinal motor function.
Some cells release active signaling proteins when membrane-bound precursor proteins are cleaved by proteolytic enzymes. The signaling proteins can then bind to receptors on the surface of a target cell, thereby activating an intracellular signaling pathway and eliciting a response from the target cell. This mechanism of activating receptor-binding signaling proteins has been observed in a variety of organisms from bacteria to humans. Many of the enzymes responsible for proteolysis of membrane-bound precursor proteins have been isolated and characterized.
Required:
What questions would be most appropriate to investigate whether the proteolytic enzymes are evolutionarily conserved among species?
Answer:
Following questions would be most appropriate to investigate whether the proteolytic enzymes are evolutionarily conserved among species:
Are the genes encoding the proteolytic enzymes expressed in the same cell types in all species? Once the precursor proteins of different species are cleaved, do the active signaling proteins bind to the same receptors on different target cells? If a proteolytic enzyme from one species is incubated with a precursor protein from another species, does correct cleavage occur? Are the proteolytic enzymes synthesized in the rough endoplasmic reticulum of all species?
What happens generally to the temperature and precipitation as latitude increases?
A. The temperature increases, and the chance of precipitation increases.
B. The temperature decreases, and the chance of precipitation decreases.
C. The temperature decreases, and the chance of precipitation increases.
D. The temperature increases, and the chance of precipitation decreases.
am giving brainlyest:)
what's the meaning of life if the end goal is death
Answer:
Some biology scientists believe life is all about sex and not dying, but it's not that simple.
Explanation:
Life is but a short period of time in this world, and the purpose of life is mainly to enjoy yourself while you live, live life to its fullest. But even better, to help shape a different world in which other people will benefit. You might only live for a few weeks, maybe 100 years, but you should do what you can in your life, help the community, and be proud of what you've accomplished within this world.
the meaning of life is very hard to explain knowing that one day u will die. but thats ,why its so amazing not knowing what the future holds life is a creation just like a flower is bloom to its fully grown think of that has all the accomplishments you have made and the downfalls. they all shape you and you shape yourself to be what you want to be life is your diary u make it how you want the end goal is death sadly but we die with a sense we changed a person a someones life we learned more then the next. life is a creation
Transcribe the following sequence.
5' TCGGCGCTATACTTT 3
b. What enzyme does transcription?
Someone please help me!!
Question 112 pts Choose the word/phrase from the right to complete the statement on the left. Choices may be used once, more than once, or not at all. Group of answer choices Archaea are ________________ cells. [ Choose ] Eubacteria cell walls contain __________________. [ Choose ] ______________________ cells have a membrane bound nucleus and/or organelles. [ Choose ] All ______________ domain organisms live in extreme environments. [ Choose ] Plants have cell walls made of___________________. [ Choose ] ________________________ are considered to be the first life forms on Earth. [ Choose ] Fungi cell walls are composed of ___________________. [ Choose ] Fungi use ______________________ to obtain nutrients. [ Choose ] _______________________are organisms which do not fit in other eukaryotic categories. [ Choose ] Plants are classified as __________________ because they make their own food. [ Choose ] Corals have a _________________ relationship with algae. [ Choose ] Corals are classified as _______________ due to their relationship with algae
Answer:
The correct answer is -
1. Archaea are prokaryotic cells. These are one of the two prokaryotic organism domain. the other is eubacteria.
2. Eubacteria cell wall contains peptidoglycan which is composed of sugar and amino acids.
3. Eukaryotic cells have membrane-bound nucleus or organelles. which distinguishes it from prokaryotic cells.
4. All archaea domain organisms found in extreme conditions such as halophiles, extremophiles, and thermophile.
5. The cell wall of the plant is made of cellulose, a polymer of glucose units.
6. Eubacteria are considered to be the first living organism or form found on earth.
7. Fungi cell walls are made up of a chitin cell wall. which is makes it different from eubacteria and plants.
8. Fungi uses absorption to obtain nutrients. Most of the fungi uses haustaurium to absorb nutrients.
9.Fungi are organism that do not fit in other eukaryotic category. Hence they were classified as separate kingdom in 5 kingdom classification.
10.plants are classifies as autotrophs because they make their own food.These autotrophs serve as primary producers.
11.Corals have a symbiotic relationship with algae. Algae provide food for coral through photosynthesis where as coral provide protection to algae.
12.corals are classified as autotrophs due to their relationship with algae.They are mixotrophs generally because they act as autotrophs with association of algae and capture prey by tentacles thus making heterotrophic nutrition.
According to the geological record, during which geological time period were the sands and clays underlying Long Island and Staten Island deposited?
Answer:
The correct answer is - Cretaceous period.
Explanation:
The Magothy Formation occurred during the cretaceous period. The Magothy formation is the formation of the consolidated sand and layers of clays deposited beneath Quaternary glacial cover throughout most of Long Island, and the south shore of Staten Island.
This formation is composed of gravel of clay and coarse sands. The thickness ranges between 10 and 200 feet. It is formed above the Raritan Formation which is upper clay and below slit deposits formation.
3) Humans are a member of which kingdom?
a. Protists
b. Fungi
c. Plants
d. Animals
Answer:
D. AnimalsExplanation:
Animals are a member of kingdom. Animals all living things alive are animals except for plants and microorganisms.
Protists is a free-living or colonial organisms with diverse nutritional and reproductive modes.
Fungi is the taxonomic kingdom of lower plants.
Plants is a factory that produces power or where industrial items are made. A living thing with roots and usually a stem and leaves, growing above and below the ground. Place a plant or the seed of a plant into the ground so that it will grow.
Therefore, the final answer is d. Animals.
5. The reactants and products for respiration are exactly the
same for a plant cell and an animal cell, the difference is
the _______
of the reactants.
Answer:
Source
Explanation:
Respiration, which occurs in all living organism, is the metabolic process by which organisms obtain energy (ATP) via the breakdown of their food substances.
The process of respiration in plant and animal cells is similar in the sense that reactants and products for respiration are exactly the same for both cells. The reaction is as follows:
C6H12O6 (glucose) + 6O2 = 6CO2 + 6H2O
The difference between this process in plant and animal cells is the SOURCE of the glucose or food molecule that is broken down. Plants get their food from PHOTOSYNTHESIS (autotroph) while animals get theirs by feeding on other organisms (heterotroph).
The first organisms arose from non-living molecules found on early earth. Which theory best describes how
this organism arose?
natural selection
abiogenesis
biogenesis
variation
Answer:
abiogenesis
Explanation:
a (not) biogenesis (coming from other life forms)
Biogenesis would mean that it's coming from other life forms,
Natural selection is a part of evolution (what is there to select?)
Variation is also a part of evolution (not related)
When can an acquired mutation be passed from parent to offspring
Which of the following best describes succession
The evolution of species through natural selection to become different species
over time
The dranzes in species composition in a community over time as species
colonize an area
The reduction in Bioteesias o men over time
The creation of new e from nothing in an ecosystem
All of these are a good description of secession
Answer:
the greating new form ide
A model for gene expression and regulation is shown here. Not all genes are expressed at all time, and a study of the proteins within
a cell indicates that not all of the gene products are present within a cell. Analyze the model and evaluate which statement(s) below
are correct based on the gene expression. Select ALL that apply.
A)
Inactive DNA prevents the gene expression at the earliest stage.
B)
Removal of the mRNA before it is translated can regulate the gene
expression
Regulation of the mRNA is the most efficient mechanism for reducing gene
expression.
D)
DNA, once transcribed, will produce multiple protein products with very
little regulation in the process.
The targeted destruction of the protein can reduce the overall expression
of the gene at a later stage in the process.
E)
Genetic Information in Cells
Answer:
A)Inactive DNA prevents the gene expression at the earliest stage.
B) Removal of the mRNA before it is translated can regulate the gene
E) Genetic Information in Cells expression
Explanation:
The diagram below illustrates substances crossing the selectively permeable membrane of different cells. Each example, A-F, shows not only different substances, but also different concentrations. Take note of the concentration inside the cell compared to the concentration outside of the cell and the direction of movement of the substance.
Figure 3-1
Diagram A in Figure 3-1 is an example of ____.
a.
diffusion
c.
osmosis
b.
active transport
d.
equilibrium
Please select the best answer from the choices provided
A
B
C
D
Answer:
A
Explanation:
the selectively permeable membrane should be plasma membrane.
and it states it follow concentration gradient
so i think it is A
osmosis is for water
I hope i helped you.
how would fossil fuel affect non terrestrial organisms?
Answer:
Explanation:
Drilling, extraction and burning of fossil fuels, endangers many desert biomes. Some deserts are used as dumping grounds for radioactive and chemical waste. Increasing dry periods and lack of vegetation from climate change can lead to more dust storms which further affect plant and animal species.
The myenteric plexus is located in which layer of the alimentary canal?
A. Mucous
B. Serosa
C. Sumucosa
populus alba son hermafroditas o unisexuales xfa
Answer:
I can’t answer this
Explanation:
Which flock will be able to eat the most? The least? Why?
Answer: The omnivorous flock will eat the most as it eats both insects and seeds. With the removal of fruit it will not be affected much. The herbivorous flock will eat the least as it has the option to eat seeds only after the removal of fruit. The flocks all started with 10 birds. Flock was X the most successful at feeding, so it will have the greatest number in the second generation. brainliest?
Explanation:
Answer:
The omnivorous flock will eat the most as it eats both insects and seeds. With the removal of fruit it will not be affected much. The herbivorous flock will eat the least as it has the option to eat seeds only after the removal of fruit. The flocks all started with 10 birds. Flock was X the most successful at feeding, so it will have the greatest number in the second generation.
The southern hemisphere is another name for the southern _____________ of the earth.
(Video "Bill Nye Seasons") (5th grade science)
Answer:
southern equator
Explanation:
On your Spring Break in Mexico, you take a break to count the starfish in a tidal pool. You notice that there is a rare recessive trait that causes the starfish to have 6 legs instead of 5. Of the 27 starfish you can find, only 1 has 6 legs. What are the allele frequencies for this population
Answer:
0.04 for 6 legs starfish and 0.96 for 5 legs starfish.
Explanation:
The allele frequency for the 6 legs starfish is 0.04 whereas, the allele frequency for the 5 legs starfish is 0.96 because there is only one 6 legs starfish in the given population as compared to 5 legs starfish. The low population of 6 legs starfish is due to the presence of recessive allele while on the other hand, higher population of 5 legs starfish is due to the presence of dominant allele. The allele frequencies for both population is done by dividing the allele of interest by total number of alleles present in the population.
What is the main function of nervous tissue?
A squirrel has 40 chromosomes in a somatic cell.
a. How many homologous pairs are found in a diploid cell?
b. How many single chromosomes (unreplicated) are found after the Sphase?
c. How many chromosomes are present in one cell at the end of meiosis II?
d. How many chromatids will be found at the beginning of meiosis I?
e. How many cells will be produced at the end of meiosis II?
f. How many tetrads will form in mitosis?
Answer:
How many homologous pairs are found in a diploid cell? 22 pairs
b. How many single chromosomes (unreplicated) are found after the Sphase? 46 chromosomes
c. How many chromosomes are present in one cell at the end of meiosis II? 15 chromosomes
d. How many chromatids will be found at the beginning of meiosis I? 92 chromatids
e. How many cells will be produced at the end of meiosis II? four
f. How many tetrads will form in mitosis? 23 different tetrads
Explanation:
hope this helps! make me brainest please
Choose all the answers that apply.
Which of the following energy sources harms the
environment?
A.) coal
B.) hydroelectric power
C.) nuclear power
D.) oil
Answer:
c nuclear power because it destroy the places
Which of the following best describes the role of cells in living organisms
Answer:
l
Explanation:
A group of researchers are studying stem length inheritance in the garden pea plant (Pisum sativum). They obtain a tall pea plant of unknown ancestry, allow it to self-pollinate, and collect 80 of its seeds. After planting the seeds, they observe the growth of 61 tall plants and 19 dwarf plants. Which of the following best explains the stem lengths seen in the offspring?
A. Stem length is inherited through incomplete dominance.
B. Dwarf stem length is a recessive trait.
C. Stem length is a sex-linked trait.
D. The tall plants likely received more nutrition than the dwarf plants.
Answer:
The answer is B
Explanation:
just cause lol
The study of a living being is called biology.
The correct answer is B.
The characters in the plant are controlled by the genes which are present on the chromosome. The genes are always present in pairs and a single gene is known as an allele. The alleles are as follows:-
DominantRecessive.According to the question, most of the offspring are tall in height due to the dominant allele while the number of the dwarf plant is less as this character is shown by the recessive genes.
The dominant plant suppresses the character of a recessive gene and hence the number of the dominant plant is always more.
Hence, the correct answer is B. Dwarf stem length is a recessive trait.
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PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer:
most likely b
Explanation:
hopefully this helped
Answer:
C
Explanation:
Since the Ice is its ecosystem then it will have less land to live making it difficult to hunt for prey (the seals). This is actually an effect of global warming.
What causes the release of the digestive enzyme pepsin
Answer:
Impulses from the vagus nerve and the hormonal secretions of gastrin and secretin stimulate the release of pepsinogen into the stomach, where it is mixed with hydrochloric acid and rapidly converted to the active enzyme pepsin.
A small part of a population is relocated to a completely new environment. Since only a few individual are moved, the gene pool in that group is severely reduced. Mark all that apply.
A. Founder Effect
B. Gene Flow
C. Genetic Drift
D. Bottleneck
Plants are able to engage in photosynthesis because they produce a chemical that can absorb sunlight to synthesize glucose. What is this chemical?
1. Oxygen
2. Chlorophyll
3. Carbon Dioxide
4. Water
2)
A homeowner lives adjacent to some wetlands, which contain standing water for much of the year. During the summer months, the
mosquitoes in the area are excessive and pose a nuisance to the homeowner. The homeowner decides to spray an insecticide on
the lawn and adjacent wetlands to eradicate the mosquitoes. The homeowner notices that after the application of the insecticide,
the number of mosquitoes is significantly reduced.
The following year, the number of mosquitoes increases in frequency as the summer months arrive and the temperatures get
warmer. The homeowner once again applies the same insecticide to the yard and adjacent wetland areas. However, this time, the
homeowner does not notice a reduction in the mosquito population after applying the chemical.
Evaluate the scenario above and select ALL statement below that apply to this case study.
A)
B)
The insecticide no longer has a chemical that can kill any mosquitoes after
the first year.
The application of the insecticide caused directional selection in the
mosquito population
There were some mosquitoes with innate genetic resistance to the
insecticide before it was sprayed the first time.
C)
D)
Natural selection selects for a phenotype in a population that has an
advantage under certain environmental pressure.
E)
The application of the insecticide caused individual mosquitoes to mutate,
which made them resistance to the chemical.
Answer: B, C, and D
Explanation:
The application of the insecticide caused directional selection in the mosquito population. There were some mosquitoes with innate genetic resistance to the insecticide before it was sprayed the first time. Natural selection selects for a phenotype in a population that has an advantage under certain environmental pressure. The correct options are B, C, and D.
What is case study?A case study is defined as 'an intensive study of a person, a group of people, or a unit with the goal of generalizing across several units'.
A case study has also been defined as a focused, systematic investigation of a single person, group, or community.
The insecticide application resulted in directional selection in the mosquito population. Before the insecticide was sprayed for the first time, some mosquitos developed innate genetic resistance to it.
Natural selection favors phenotypes in a population that have an advantage under certain environmental conditions.
Thus, B, C, and D are correct options.
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