Which definition is the best for semipermeable membrane?
"The real answer is It is a barrier with tiny openings that let some, but not all, materials pass through"
Answer:
Semipermeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion—or occasionally by more specialized processes of facilitated diffusion, passive transport or active transport.
Explanation:
The real answer is It is a barrier with tiny openings that let some, but not all, materials pass through.
Select three examples of resistance to antibiotics that is due to an altered cellular target of the drug. Multiple select question. The activity of beta-lactamase Addition of acetyl-CoA to chloramphenicol Alteration of an enzyme involved in folic acid synthesis A change in the structure of 23S rRNA The terminal D-alanine of pentapeptide mutates to D-serine
Answer:
- Alteration of an enzyme involved in folic acid synthesis
- A change in the structure of 23S rRNA
- The terminal D-alanine of pentapeptide mutates to D-serine
Explanation:
Antibiotic resistance is the phenomenon by which microorganisms naturally have, acquire, or develop the ability to defeat the drugs designed to eliminate them. For example, trimethoprim is able to bind with the enzyme dihydrofolate reductase (DHFR) in order to inhibit the folic acid synthesis pathway. Sulfonamides (sulfa drugs) competitively inhibit the incorporation of para-aminobenzoic acid (PABA) into folic acid and thus also prevent the synthesis of folic acid. Ribosomes are organelles where proteins are synthesized. The 23S rRNA is a component of the large subunit (50S) of bacteria and archaea ribosomes. In consequence, it is expected that a modification in the structure of 23S rRNA alters protein synthesis. Finally, vancomycin acts by binding the terminal D-Ala-D-Ala residues of the polymeric lipid-PP-disaccharide-pentapeptides and thus inhibits cell wall synthesis in Gram-positive bacteria. In consequence, it is expected that a mutation at the terminal D-alanine that modifies this sequence alters the vancomycin binding site and thus also confers antibiotic resistance.
Which shows the levels of organizational hierarchy listed from least complex to most complex?
O population, community, ecosystem
O ecosystem, population, community
O community, population, ecosystem
O community, ecosystem, population
Answer:
I think the answer to this question is O population, community, ecosystem.
Population, community, and ecosystem show the levels of organizational hierarchy from least complex to most complex. Therefore, the correct statement is option A.
What is the community consisting of?A community is made up of all the populations of different species that live in the same area and interact with one another. A population is a group of people from the same species who live there.
A biological system remembers every one of the living organic entities for a local area, as well as the actual climate in which they live and connect. In this order, the population is the most un-complex level, as it alludes to a gathering of people of similar species.
Community is more complicated because it involves interactions between multiple species populations. Because it encompasses all living and nonliving components of an area as well as their interactions, the ecosystem level is the most complex.
Therefore, population, community, and ecosystem show the levels of organizational hierarchy from least complex to most complex.
Learn more about the community here:
https://brainly.com/question/29811467
#SPJ7
hi so i just received a death threat from +592 6034153,can someone pls help me find the identity of this person and pls put a pic of the person.
Answer:
below
Explanation:
you can report this to the cops or a older authority. Posting a picture is a form of doxxing and can be illegal or a form of witchhunting.
PLEASE HELP ME! 10 POINTS+BRAINLIEST
Answer:nobel gaeses are found in the group 18 of the periodic table
Explanation:
Answer:
Noble Gases are found in Group 8 of the Periodic Table
Explanation:
- Describe how chromosomes are formed from DNA.
Answer:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. DNA and histone proteins are packaged into structures called chromosomes.
Explanation:
Hope this helps
Draining wetlands for housing is a form of stewardship.
- True
- False
Containers of ice cream are sold by volume, not by weight. Some ice cream manufacturers pump air into the ice cream before packaging it. Why does this practice make the ice cream more expensive to the consumer?
John doe and jane doe want to have children and are thinking about how their children's hands might look. What would their children look like if they're both heterozygous for straight pinky and hitchhikers thumb?
Answer:
The correct answer would be -
Straight pinky, hitchhikers thumb - 9
Straight pinky, straight thumb - 3
bent pinky, hitchhikers thumb - 3
bent pinky, straight thumb - 1
Explanation:
Straight pinky H, hitchhikers thumb P are the dominant traits over the bent pinky h, straight thumb p. It is given that the parent's genotype is heterozygous for both then
Cross: HhPp cross with HhPp
Gametes: HP, Hp, hP, hp for both parents
punnett:
HP Hp hP hp
HP HHPP HHPp HhPP HhPp
Hp HHPp HHpp HhPp Hhpp
hP HhPP HhPp hhPP hhPp
hp HhPp Hhpp hhPp hhpp
Thus, the correct answer would be:
Straight pinky, hitchhikers thumb - 9
Straight pinky, straight thumb - 3
bent pinky, hitchhikers thumb - 3
bent pinky, straight thumb - 1
2.01 Properties of Water Lab Report
50 POINTS FOR WHOEVER ANSWERS CORRECTLY!! <3
If you were to be conducting an experiment on how temperature change affect surface tension what would be the Objective of the experiment, the hypothesis, the variables (Like Independent Variable, Dependent, Variable, Controlled Variable) The materials needed to conduct it, the data and observations collected during the experiment, and the conclusion to your experiment. Also, what would be some real world applications to the importance of the properties of water?
Please make sure to answer all of the questions within this one, for any clarification needed it is basically a lab report on how surface tension is effected by the temperature of water. Please answer and Thank you!
Answer: The main properties of water are its polarity, cohesion, adhesion, surface tension, high specific heat, and evaporative cooling.
Water has the unique ability to dissolve many polar and ionic substances. This is important to all living things because, as water travels through the water cycle, it takes many valuable nutrients along with it! Water has high heat capacity.
The Objective of the experiment, the hypothesis, the variables Like Independent Variable, Dependent, Variable, Controlled Variable
[tex]\color{yellow}{}[/tex]
Amebas are single-celled organisms that need to obtain food in order to
A. release oxygen into the air
B. protect themselves from other living
things
C. get the energy they need to carry
out life functions
D. remove harmful chemicals from the
environment
Which of these is an example of a chemical change?
A. Breaking a tree branch
B. Burning a piece of wood
C. Melting ice
D. Dissolving salt in water
SMIT
which one is not a lip
Which is an example of why the process of photosynthesis is important to life on Earth?- - Grass uses photosynthesis to produce glucose, which is used within the grass for growth.
- Fungi use photosynthesis to decompose dead and decaying plant matter.
- Ectothermic animals use photosynthesis to convert sunlight into energy for cell functions.
- Green plants use photosynthesis to remove oxygen gas from the atmosphere and replenish the earth’s carbon dioxide.
Answer:
The correct answer is: A) Grass uses photosynthesis to produce glucose, which is used within the grass for growth.
Explanation:
Photosynthesis is the process by which green plants, which include algae, take in the energy from the sun and combines it with carbon dioxide (and water) to form benificial sugars.
Photosynthesis refers to the process by which the green plants, as well as algae, utilize the energy from the sun in combination with the carbon dioxide as well as water to form simple sugars. This is how the harmful gas carbion dioxide can be destroyed and elimanated.
Answer:
The answer is A
Explanation:
EA SPORTS ITS IN THE EDGE
Which of the following is NOT true of a base?
A.) A base has a pH greater than 7.
B.) A base is alkaline.
C.) A base has a few hydrogen ions.
D.) A base has a few hydroxide ions.
***Please send legitimate answers ONLY.***
Explanation:
Hey there!
Your answer is option B.
Reason:
Base are the substance that produces hydroxyl ion dissolving in water.
Option A(true): The pH value of base is always greater than 7.
Option B (false): A base is considered as alkaline if it dissolves in water only otherwise they are not alkaline.
Option C (true): A base always has few hydrogen ions in it.
Option D(true) : A base has also few hydroxide ions.
Hope it helps!
The cells were kept in a dilute salt solution. They were then transferred to distilled
water.
Explain what will happen to each of these two cells when they are placed into distilled water.
When plant cells are placed in salt solution their appearance is different to when they are placed in distilled water. ... Therefore, water moves out of the cell across the partially permeable membrane by osmosis and the cell becomes flaccid as the cell membrane peels away from the cell wall
Select the correct answer.
Sea anemones are predatory Invertebrates with stinging tentacles that can paralyze many sea animals. The clownfish Is Immune to the sting of
the sea anemone and actually lives among its tentacles. The relationship is mutually beneficlal-the clownfish often lures meat-eating animals
over to the anemone, and the anemone beneflts from the meal. The clownfish often gets to eat
leftovers from the anemone's meal.
When the clown fish Is ready to lay eggs, It lays them near a sea anemone. How's this a reproductive strategy?
O A. The sea anemone protects the clownfish's eggs from predators.
O B. The sea anemone fertilizes the clownfish's eggs.
O C. The sea anemone provides nourishment for the clownfish's eggs.
O D. The sea anemone uses the clownfish's eggs to lure prey.
O E. The sea anemone lets the clownfish rest on it.
Reset
Next
Answer:
d
Explanation:
How many alleles are in the gene pool?
Answer:
40 b alleles
Explanation:
Only 40 b alleles are present in the gene pool, so genetic diversity is lower. The use of gene pools allows population geneticists to see variation and the influence of natural selection in detail. A single gene may show significantly less genetic variation than the variation within the whole genome of a population
Answer:
17
Explanation:
Help me thanks!!!!!!!!
Please help, correct answers only, will give brainliest.
Answer:
B option
Explanation:
Hope this helps
DNA replication and DNA synthesis are the same process.
Group of answer choices
True
False
Which of the following is NOT essential for protein synthesis? *
ribosomes
tRNA
mRNA
carbohydrates
Answer:
carbohydrates
Explanation:
help mee guy to complete this please please please please please
Question doesn't see clearly than how to help
During reduction, PGA reacts with ATP and NADPH. What does ATP contribute to the reaction?
carbon
Answer:
During reduction, 3-PGA reacts with ATP and NADPH. What does ATP contribute to the reaction? ... The L-D reactions require light energy and water, and the L-IND reactions require ATP, NADPH and CO2. In the chemical equation for photosynthesis, carbon dioxide and water are converted to glucose and oxygen.
Explanation:
correct me if I'm wrong
carry on learning!;)
identity two excretory products produced by plants
Answer:
Carbon dioxide, excess water produced during respiration and nitrogenous compounds produced during protein metabolism are the major excretory products in plants. Plants produce two gaseous waste products i.e. oxygen during photosynthesis and carbon dioxide during respiration.
What are some of the limits of science?
Answer:
Empirical limits in science
[tex] \huge \blue{ \boxed{ \boxed{ \sf{ \pink{hi}}}}}[/tex]
My AnswerMust deal with observable measurable phenomenon.Science can describe not explain.No experiment can be completely controlled.Observations may faulty.A mans belief effects his judgment.Science must deal with repeatable results.Science cannot deal with values or morals.#CarryOnLearningBrainliest please
Acell membrane is very specific about what it allows across. How does this help the cell?
A. Transport proteins allow only enzymes to pass through the membrane.
B. It is better for the cell if most molecules are prevented from entering
C. The cell works better when it contains fewer proteins.
D. It helps the cell absorb as many different molecules as possible.
Explanation:
It helps the cell absorb as many different molecules as possible.
what havoc would be caused if a horse was suddenly at the top of the food chain
that would be.... immensely chaotic
Question 3 of 10
The surface area of a sphere can be approximated as follows:
Surface area = 411/2;
where ris the radius of the sphere;
Ti is a constant that is roughly equal to 3.
Using the simple approximation above, calculate the surface area of a sphere
with a radius of 5 meters.
A. 500 m2
B. 900 m2
C. 3,600 m2
D. 300 m2
Answer:
D. 300 m²
Explanation:
A sphere is a three dimensional object with a surface which as like that of a ball. A sphere is a set of points that are all at the same distance r from a given point in a three-dimensional space.
The surface area of a sphere is:
Surface area = 4πr²
where r is the radius of the sphere, π is a constant = 3
Given that r = 5 meters, hence substituting into the area equation:
Surface area = 4π(5)² = 4(3)(5)² = 300 m²
A- Briefly describe the biotechnology methods that would have been used to produce these results.
B- How are the bands from the jeans and the shirt similar? How are they different?
C- Based on these results, what conclusions might a prosecutor present to a jury during a criminal trial?
Answer:
a. teh use of a electrophoresis machine after the dna has been processed using enzymes would give the bands shown on the gel
b.the bands from teh jeans and shirt show that the shirt was made from materials taht include teh material the jeans were made from
c. a prosecutor may conclude to the jury that the defendant had blood only on their shirt
