Explanation:
A plant cell has cell wall which is otherwise absent in animal cell
cel wall is a freely permeable membrane which allows the entry of all substances . cell wall basically gives rigidity to the cell and protects the cell .
Hope this helps you dear :)
Glycans are a virulence factor for which group of organisms?
A. fungi
B. viruses
C. bacteria
D. protozoa
E. helminths
Answer:
C.bacteriaExplanation:
because bacterial glycans are attractive pathogen-specific targets. Bacterial cells are coated with an impressive array of glycan structures that comprise their cell wall
Glycans are a virulence factor for bacteria. So, the correct option is C.
What are Glycans?
Glycans are also known as polysaccharides, are carbohydrate-based polymers made by all living organisms. They are basically chain-like structures that are composed of single sugar molecules (monosaccharides) linked together by chemical bonds.
Now, out of given organisms, only bacterial cell walls are mainly composed of polysaccharides. So, these glycans sites are target sites for disease-causing agents to perform their activity.
Therefore, glycans are a virulence factor for bacteria.
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Which things need to be present for natural selection to take place? (select all that apply)
A.Variation in the population.
B.The ability for asexual reproduction.
C. Competition between organisms.
D. Large amounts of resources.
Answer:
A & C
Explanation:
Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.
YES - A) You must have variation in the population, typically in the terms of "fitness" or having admirable/sucessful traits that make them more likely to reproduce and ensure their own offspring are fit too.
NO - B) It is sexual (not asexual) reproduction that uses natural selection for their offspring. Although some asexual organisms use natural selection, it is ALWAYS used if possible with natural selection to ensure the fitness of characteristics is passed down.
YES - C) Competition is necessary for natural selection to occur. When those who are more physically fit compete, they are more likely to live against their opponent and therefore pass on the trait of fitness.
NO - D) Although resources are necessary, large amounts are not as it does not lead to fighting over them (scarcity) bringing us back to the need for competition above.
Hope this helped!
to separate hucks and grains in field
a) tailor
b) grocer
c) farmer
d) watchman
Answer:
C
Explanation:
Comment its correct or not correct please
Do both roots and leaves store food?
Answer:
None of them does
Explanation:
the function of the root is to Absorb the water and the leaves to Absorb ligh
in what direction air in the southern hemisphere deflects due to coriolis effect?
a.)left
b.)right
C)left and right
d.)neither left or right
Which best describes probability?
3. What is frequency measured in?
Kilowatt hours
joules
period
hertz
Answer:
hertz
Explanation:
Answer:
Hertz
Explanation:
The international system of units states that frequency is measured in hertz.
Substances that can explode are
considered
A. stable
B. corrosive
C. reactive
D. toxic
Which characteristic distinguishes dwarf planets from planets?
orbits the Sun
is round
is not a moon
has not cleared its orbit of objects
Answer:
D- has not cleared its orbit of objects
Explanation:
just took it
:))
Answer:
other person is right its D.
Explanation:
Q6. In mice, the allele for black hair color is (B) dominant to that for brown (b), the allele for
short hair (H) is dominant to that for long hair (h). The gene for hair color and length are not
linked (i.e. they are on separate chromosomes).
One colony (colony A) of mice was pure breeding for short hair; a second colony (colony B) was
pure breeding for long brown hair.
a. A male from colony A was mated with a female in colony B.
i.
Give the genotype of the male from colony A and the genotype of female in
colony B. (2mks)
ii.
These two mice were crossed and produce a large number of offspring (F1).
Construct punnet squares to show this result (3mks)
iii.
Give the genotypes and phenotypes (ratio) of this F1 generation (2mks)
Genotypes:
Phenotypes:
Answer:
The correct answer is -
A (i) a male from colony A HH and female from colony B bbhh
(ii) the offspring will be heterozygous for short brown hair
(iii) genotype 100% Hhb, phenotype - 100% short brown hair
Explanation:
It is given that parent one is from Colony A that is pure breeding for short hair which means p1 is HH and parent 2 is from colony B that is pure breeding for long brown hair that means p2 is bbhh.
Cross between HH and bbhh
Gemetes : H, H, and bh, bh,
Punnet:
bh bh
H Hhb Hhb
H HhB Hhb
Thus, the offspring will be heterozygous for short brown hair
Which term best describes the plasma membrane?
Which term best describes the plasma membrane?
Static
Dynamic
Impermeable
Rigid
Answer:
The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. ... The plasma membrane consists of a lipid bilayer that is semipermeable. The plasma membrane regulates the transport of materials entering and exiting the cell.
Dynamic term describes the plasma membrane. So, the correct option is (B).
What is Plasma membrane?Plasma membrane also known as cell membrane is a membrane found in all cells that separates the interior of the cell from the external environment. The plasma membrane consists of a lipid bilayer that is semi-permeable that regulates the transport of materials entering and exiting the cell.
This membrane is called a selectively permeable membrane because it controls the movement of substances in and out of the cell, which means that the plasma membrane allows certain materials to pass through it, while at the same time it prevents other materials from entering through it. Plasma membrane is dynamic in nature.
Thus, Dynamic term describes the plasma membrane. So, the correct option is (B).
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Drinking wells must be drilled deeply into the ____ to obtain water? A. Zone of Aeration b . Zone of Saturation. C. Water table
Answer:
C
Explanation:
The executive office or agency that is responsible for coordinating energy problems is called the
Answer:
Pretty sure it is Department of Energy
Explanation:
please help ill give brainliest :)) A coach travels from the station to the beach, a distance of 430 km away in 7 hrs. The coach is only allowed to travel at a maximum speed of 95 km/h. Did the coach break the speed limit?
Answer:
No he did not break the speed limit
Explanation:
430÷7=61.43mph
Which type of soil is likely to be found
in horizon E?
Answer:
sandy soil
Explanation:
A layer of pale, sandy soil lacking clay and iron is likely to be found in horizon E.
What happens when light hits the pigment in photosystem II?
Thylakoid membrane
Photosystem 11
Light
Inner space
Water-
splitting
enzyme
Answer:
D. It sets off a reaction that moves energy through the proteins of the thylakoids membrane.
Explanation:
1. What did Mendel conclude about genes from parents to offspring?*
Answer: Paired pea traits
Explanation:
Mendel found that paired pea traits were either dominant or recessive. ... He concluded that traits were not blended but remained distinct in subsequent generations, which was contrary to scientific opinion at the time.
I WILL GIVE 100 POINTS
Describe types of unmanned space exploration technology.
· Orbiters
· Fly-bys
· Landers
· Rovers
· Describe Voyager 1 and what is was designed to explore
· Describe Cassini-Huygens and what is was designed to explore
· Describe Spirit/Opportunity/Curiosity and what is was designed to explore
· Describe the Hubble Telescope and what is was designed to explore
Answer:
voyager 1 was a probe that was designed to explore the outer limits of our solar system and possibly make it to the neighboring solar system
Which is one reason for the formation of global winds? (1 point)
-uneven heating of Earth's surface
-fewer daylight hours in Arctic regions
-loss of energy as warm air rises
-condensing of moisture in cooling air
One reason for the formation of global winds is the uneven heating of the Earth's surface.
The uneven heating of the Earth's surface is primarily caused by variations in solar radiation received at different latitudes.
The equator receives more direct sunlight when the sun's rays strike the Earth's surface, they heat the air in contact with it. n the poles, resulting in a temperature gradient across the planet. This temperature gradient drives the formation of global winds.
Fewer daylight hours in Arctic regions: This option is incorrect. The number of daylight hours in a region does not directly contribute to the formation of global winds. While sunlight does play a role in heating the Earth's surface and driving atmospheric circulation, the length of daylight hours is not a determining factor.
Loss of energy as warm air rises: This option is valid. As warm air rises due to heating from the Earth's surface, it expands and cools. This cooling causes the air to lose energy, and as a result, it becomes denser and sinks back toward the surface. This sinking motion creates regions of high pressure, which contribute to the formation of global winds.
Condensing of moisture in cooling air: This option is incorrect. The condensation of moisture in cooling air relates to the formation of clouds and precipitation, but it does not directly influence the formation of global winds.
Therefore, the uneven heating of the Earth's surface, due to variations in solar radiation, is a significant reason for the formation of global winds.
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Answer: A) uneven heating of Earth's surface
Hope it helps ^_^
What is the driving force behind adaptative evolution?
A.better regulation of body heat
B.more efficient digestion
C.increased reproductive success
D. increased size
Which element is considered the most versatile element in living organisms and why?
Answer:
carbon
Explanation:
Because it can bond with many elements of form complex.
What makes a predator different from a parasite?
A predator has a long relationship with its food.
A predator kills its food organisms faster.
A parasite has a brief relationship with its food.
A parasite kills its food organisms faster.
Which chemical powers vesicular transport?
Which chemical powers vesicular transport?
Sodium
Water
ATP
Adenine
vesicular transport use ATP energy as their power source
provide one term:when businesses produce goods and services that consumers do not want
Answer:
Their will be low demand for the goods
Explanation:
Because goods like cigarettes are not much consumed by people
Biodiversity can include genetic diversity within a population or variation of populations within an ecosystem. Given this information, which of the following is likely to have the most biodiversity?
A. a tropical forest
B. an arctic tundra
C. a deciduous forest
D. a residential backyard
Answer: A= A tropical Forest
Explanation: the largest biodiversity rate is in brizal. And Brizal hold 1/3 of the worlds largest Tropical forest, and 60% of the Amazon Rainforest than the other answers listed
The prime mover of the elbow extension is the
Answer:
triceps brachii muscle
The prime mover of elbow extension is the triceps brachii muscle, and is assisted by the much smaller anconeus muscle. All anterior (front) arm muscles cause elbow flexion. These muscles are the biceps brachii, brachialis and brachioradialis.
Explanation:
thank me later
Answer:
the other person is correct
O aglomerado de moléculas orgânicas, revestido por uma película de moléculas de água e que, na opinião de alguns cientistas, pode ser um dos primeiros passos rumo à origem da vida, chama-se: *
(a) Aminoácido.
(b) Enzima.
(c) Micro-organismo.
(d) Coacervado.
(e) Proteína.
based on this information, scientist could predict that the base _____ pairs with ______ and the base
_____ pairs with ______ in the formation of the DNA molecule
Based on this information, scientist could predict that the base [tex]\boxed{ adenine }[/tex] pairs with [tex]\boxed{ thymine }[/tex] and the base [tex]\boxed{ cytosine }[/tex] pairs with [tex]\boxed{ guanine }[/tex] in the formation of the DNA molecule.
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Which of these is a feature of eons in the geologic time scale? (1 point)
-They are divided into periods.
-They are divided into 100-million-year divisions.
-They are the longest divisions of time.
-They are the shortest divisions of time.
They are the LONGEST DIVISIONS
of time.
Pictured below is proof that the answer is right, good luck on the final exam!
A proper balance of oxygen and carbon dioxide must be maintained in the human body to survive. Which of the following body systems is responsible for taking in and releasing these gases to ensure homeostasis?
