Answer:
plasmalemma or cell membrane is a biological structure that separates all the cells interior organs from the layer of protection that protects it from the environment (cell wall in plants). this membrane allows osmosis and diffusion to take place within the cell.
What is the ultimate role of ecological succession in an environment
Answer:
The stable, end stage of ecological succession in which the plants and animals of a community use resources efficiently and balance is maintained by disturbances such as fire. The ultimate goal of ecological succession. After a natural disaster and continues until a climax community is reached.
Explanation:
The ultimate role of ecological succession in an environment is to reach the equilibrium in an ecosystem.
What is Ecological Succession?This event involve in the steady and gradual change in a species of a given area with respect to the changing environment is called as ecological succession.
The changes are inevitable process where all biotic components of the ecosystem keep up with the changes in our environment.
This process ultimately reach equilibrium in the ecosystem and the community that achieves this referred as a climax community, where some species increase in number and others decrease.
The communities that undergo changes sequentially in an area is called sere, so it is also called as seral stage or seral community.
Evolution has taken place simultaneously with that of ecological succession, so all the communities we observe are the result of ecological succession.
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Alcon blue butterflies spend the first part of their lives as caterpillars that live with Myrmica ants. When a caterpillar lives with the ants, it pretends to be a Queen ant by making noises that make it sound like the Queen ant. Queen ants receive more food and better protection than any other ants in the nest. When the caterpillar mimics a Queen ant, the ants feed and protect the caterpillar instead of other ants in the nest. Which word best describes the relationship between the caterpillar and ants
Answer:
The correct answer is - parasitic.
Explanation:
The Maculinea Alcon butterfly has a unique relationship with species of Myrmica ants. The butterfly's caterpillars picked up by passing Myrmica ants, and take to their nests where this caterpillar makes sounds like the queen ants, and to this sound, all ants protect and feed this caterpillar instead of other ants.
Normally there is a mutualistic relationship between ants and caterpillars but in the case of The Maculinea Alcon caterpillar and Myrmica ants, there is a parasitic relationship.
The ____ ____ structure of DNA aid also known as a "________" .
Answer:
I think it is double helix
Use the drop-down menus to match the alkanes with the correct name.
CH3CH2CH2CH2CH2CH2CH2CH3
OCTANE
CH3CH2CH2CH3
BUTANE
CH4
METHANE
CH3CH2CH2CH2CH2CH2CH2CH2CH2CH3
DECANE
CH3CH3
ENTANE
your welcome
Answer:
CH4 - METHANE.
CH3CH2CH2CH2CH2CH2CH2CH3 - OCTANE.
CH3CH2CH2CH3 - BUTANE.
CH3CH3 - ETHANE.
CH3CH2CH2CH2CH2CH2CH2CH2CH2CH3 - DECANE.
Explanation:
Hello there!
In this case, according to the rules for the nomenclature of organic compounds, it turns out possible for us to match the given hydrocarbons by knowing that octane is a hydrocarbon with eight carbon atoms, butane with four carbon atoms, methane with one carbon atom, decane with ten carbon atoms and ethane with two carbon atoms.
In such a way, the correct matching is shown below:
CH4 - METHANE.
CH3CH2CH2CH2CH2CH2CH2CH3 - OCTANE.
CH3CH2CH2CH3 - BUTANE.
CH3CH3 - ETHANE.
CH3CH2CH2CH2CH2CH2CH2CH2CH2CH3 - DECANE.
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List three examples of enzymes and their functions
Answer:
Lipases
Amylase
Maltase
Explanation:
Lipases help digest the fat in the gut.
Amylase change the starche into sugar.
Maltase breaks down the sugar into glucose.
How did the insertion of a nucleotide in a DNA sequence result in a phenotypic change in an organism
Answer:
if the nucleotide insertion occurs within the coding region of a gene (frameshift mutation), then it will change the open reading frame (ORF) of the resulting protein and thus also will alter the phenotype of the individual
Explanation:
A mutation is any change in the DNA sequence of the genome of a cell/organism. A point mutation is a genetic mutation where a single nucleotide is inserted, deleted or changed from the original DNA sequence. The insertion of a single nucleotide in the coding region of a gene is called frameshift mutation since this nucleotide base shifts the way the DNA sequence is read. A frameshift mutation changes the meaning of the codons that follow the inserted nucleotide base and thereby protein function is generally lost, thereby also affecting the resulting phenotype associated with this protein.
Look at the diagram below. It shows two solutions separated by a partially permeable membrane. Which number arrow shows the direction in which water molecules will move?
Answer:
Arrow no. 4
Explanation:
Water flows from a region of higher concentration to a region of lower concentration, i.e, osmosis.
Dilute solution means it has relatively less solute and more solvent, meaning more amount of water.
And just the opposite for concentrated solution.
So since the dilute solution has more water and concentrated solution has less, and water moves from a region of higher concentration to a region of lower concentration, option 4 is the correct answer.
During the osmosis process solvent is moved from a lower solute concentration to a higher solute concentration, hence arrow 4 defines the movement of water molecules.
What is osmosis?Osmosis is the process through which solvents move from a region of lower solute concentration to one of higher solute concentration across a semi-permeable membrane.
Water in the cell acts as a solvent and moves from lower solute concentration to higher solute concentration through a partially permeable membrane.
Conversely, in diffusion, molecules migrate from an area of greater concentration to regions of lower concentration without the need for a semi-permeable barrier.
Therefore diffusion of water molecules in the osmosis process from low solute concentration to high solute concentration, hence arrow 4 defines the movement of water molecules.
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Mientras se calienta una solución en un vaso de precipitados, ¿cuál es el
equipo de seguridad apropiado para tener en el banco?
Answer:
Fire extinguisher.
Explanation:
Fire extinguisher is the appropriate safety equipment to have at the side of the baker while heating a solution in a beaker because sometimes the solution catch heat due to reactions with flammable liquids which leads to big incident so in this case fire extinguisher can avoid such type of incident by turn off the heat due to the gas present inside the container of fire extinguisher so this safety equipment is necessary at the side of the reaction.
How does a planet's distance from the Sun affect its surface temperature and the length of its orbit (year)?
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Answer: In general, the surface temperatures decreases with increasing distance from the sun. Venus is an exception because its dense atmosphere acts as a greenhouse and heats the surface to above the melting point of lead, about 880 degrees Fahrenheit (471 degrees Celsius)
Explanation:
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Hey can you help me with these questions
1. What occurs across a period of the periodic table?
A number of neutrons decreases
B average atomic mass decreases
C number of inner orbital electrons increases
D number of protons increases
2. How do transition metals generally compare to alkali metals?
A harder
B. fewer electrons in outer shell
C. more reactive
D lower boiling points
Plz help asap
Best answer gets Brainly
Answer:
1. c. because across a period from left to right, the covalent radius decreases. As you move from left to right across the periodic table, atoms have more electrons in their outer energy level and more protons in their nucleus.
2.b. because Transition metals are less reactive than alkali metals because of their high ionization potential and high melting point.
What is and allele I need helppppp plssss
Answer:
one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Explanation:
Answer:
Any one of two or more genes that may occur alternatively at a given site on a chromosome.
Explanation:
Alleles may occur in pairs, or there may be multiple alleles affecting the expression of a particular trait.
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hey! pls help i’ll give brainliest
Answer:
Critical
Explanation:
Even a single bee is a critical part of the ecosystem
All but one of the following is a component of nucleus acids. Nucleus acids do not contain
Answer:
Does not contain amino acids
Explanation:
If there are options, please mention.
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Which of the following is an area of authority in a design?
O Tension
O Dominance
O Accent
O Contrast
What is the definition of alleles.
Answer:
An allele is one of a pair of genes that appear at a particular location on a particular chromosome and control the same characteristic.
Explanation:
Which terms best complete the chart about characteristics of human development between fertilization and birth? Stages of Human Gestation First trimester Second trimester Third trimester - Embryo develops - Organs begin to develop - (1) - Starts swallowing - Fat begins to develop - (2) - All organs are developed - Can hear and see - (3)
Answer:
Im doing the unit test and i believe the answer is C
Explanation:
It makes the most sense if you have studied.
The stages of human gestation and their time duration are given below:
First trimester: After conception to 12 weeks.Second trimester: Between 12 to 24 weeks. Third trimester: Between 24 to 40 weeks. What do you mean by Fertilization?Fertilization may be defined as a biological event that occurs by the fusion of male and female gametes successfully to produce a zygote.
The embryo develops after four to five weeks of conception which is the first trimester, organs initiate to develop by the end of the first trimester.
Swallowing is initiated at the beginning of the second trimester, and all organs are completely developed by the initiation of the third trimester. While all senses of hearing and seeing are developed by the middle of the third trimester.
Therefore, each trimester is characterized with its own functionality.
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Select the correct answer from the choices provided in the underlined sections
A plant grown in low light will have (lighter / darker) flower color while a plant grown in bright light will have a (light / darker) flower color.
Answer:
darker and lighter
Explanation:
Hope it helps :)
A plant grown in low light will have darker flower color while a plant grown in bright light will have lighter flower color.
The plants which grow in high light intensities are called?The plants which have the ability to survive in the high intensity of sunlight they are called heliophytes.
Prosopis, Betula, Teak, etc are the examples of heliophytes.The plants which grow in low light intensities are called Sciophytes. Example includes Aegle, Nycanthes.
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b) Write any
four function that yo can do to
conserve the environ ment of our sorrundings
Recycling. ...
Reduce water consumption. ...
Reduce the use of electricity. ...
Plant a tree. ...
Grow vegetables. ...
Composting. ...
Use rechargeable batteries. ...
Quit smoking.
What is the correct genotype for a person who is heterozygous for autosomal hypertrichosis?
- HH
- hh
- Hh
What causes the green house affect
Answer: Hope This Helps!
Explanation:
Greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.
Select the correct answer.
Which activity does NOT contribute to global warming?
OA.
Driving cars
OB. Releasing gases
OC. Walking
D.
Burning fuel
Reset
Next
the answer is C I believe ><
How quickly does the process of excretion occur in plants?
Explanation:
Plants produce two gaseous waste products i.e. oxygen during photosynthesis and carbon dioxide during respiration. Excretion of gaseous waste in plants takes place through stomatal pores on leaves. ... Excess of water is also excreted from the plant body through the stomatal pores and from the surfaces of fruits and stems.
Mad cow disease is caused by deformed proteins called prions. The disease is spread when meat from an infected cow is eaten. Prions can make normal proteins deform into more prions. After a few years, the brain of an infected person or cow looks like a sponge full of holes. Are prions considered organisms?
Answer:
No.
Explanation:
No, prions are not considered organisms because they are proteins that the infection to the surrounding cells and tissue. Prion is a type of protein that can change normal proteins in the brain into abnormal. Prion diseases can affect both humans and animals and spread to humans by eating infected meat products. So we can conclude that prions are not organisms, they are proteins.
How can a chloroplast, a structure found in plant cells but not in animal cells, provide energy for BOTH plants and animals?
Answer:
Chloroplasts are found in plant cells only because chloroplasts contain chlorophyll which is essential for photosynthesis. Chlorophyll traps sunlight and uses it to prepare food for plants by the process of photosynthesis.
What is the concentration of carbon dioxide in this sample
Answer:
38.2 mmita. 6. Draw conclusions: Between the right ventricle and the left atrium,
Explanation:
What is a potential effect of rapid climate change on Earth?
Explanation:
Scientists have predicted that long-term effects of climate change will include a decrease in sea ice and an increase in permafrost thawing, an increase in heat waves and heavy precipitation, and decreased water resources in semi-arid regions.
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Give one use of sugar in the body
Answer:
Our body uses sugar for energy
hope this helps
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Explanation:
Which of the following statement is NOT true of osmotic pressure
A. There must be a selectively permeable membrane
B. the two solution are of equal concentration at the beginning of the experiment
C. It involves only the movement of water molecules
D. Equilibrium is reached when there is equal distribution of water molecules
Answer:
c
Explanation:
it involves only the movment of water molecules
How could the aquifer around the Los Angeles are in California be susceptible to an impact by a Tragedy of the Commons?
Answer:
Due to over-pumping of water.
Explanation:
The aquifer around the Los Angeles are in California could be susceptible to an impact by a Tragedy of the Commons because the people used more water than the aquifer receives. The excess use of water from the aquifer through the well causes depletion of water which results in the shortage of water to fulfill the needs of existing population so it is wise to use water efficiently and used lower or equal water the aquifer receives in order to maintain level of aquifer.