10. Most cells are microscopic. Very few, like the eggs we eat, are visible to the unaided eye. Why have cells evolved to be small versus very large structures visible to the human eye

Answers

Answer 1

Answer: Efficient functioning.

Explanation:

Cells require a lot of substances to both come into and leave the cell in order for the cell to accomplish it's functions. These substances can be anything from carbohydrates to water and they come into the cell through diffusion and osmosis.

The thing about diffusion however, is that it happens faster over shorter distances than longer distances. This is why cells are so small. They evolved to be that size to ensure that diffusion of these substances takes place relatively quickly so that they can use these substances to carry out their functions at a faster rate.


Related Questions

write a paragraph summary about the differences between amphibians and mammals (humans).

Answers

Answer:

Mammals give birth to live young, whereas the birth of amphibians takes place externally. Mammals are warm-blooded, while amphibians are cold-blooded. Mammals can live in all habitats, unlike amphibians, and have muted colors. Some amphibians can regenerate their limbs.

1.What do other organisms rely on plants for?

Answers

Answer: Organisms depend on other organisms and on the nonliving things in an ecosystem to meet their basic needs for food, water and protection. 3. Plants use energy from the sun to produce their own food from air and water.

Explanation:

They rely on them to get energy. Plants get food and energy from the sun directly and then animals eat the plants giving them food and energy indirectly. Animals that eat other animals get their energy indirectly from the animals they eat

pls help

Identify the organelle that packages and secretes proteins and membrane parts

A. Nucleus

B. Mitochondria

C.Golgi Apparatus

D.Cell Membrane​

Answers

the answer is C. Golgi Apparatus

What is an advantage to the type of circuit shown in the image to the left? A. The bulb closest to the battery is the brightest. B. If one bulb burns out, the others will stay lit. C. If one bulb burns out, the others will too.​

Answers

Answer:b

Explanation:

Pregnancy comes with a unique set of diet and lifestyle guidelines. Some substances are particularly beneficial for the mother or baby, others are harmful, and some should be used with caution.

a. True
b. False

Answers

Answer:

I believe it it A. True

Hope this helps

Answer:

a

Explanation:

the concentration of substances contained in e.g some medicines might be okay for a woman who is not expecting but the the impact is totally different to someone who has a baby growing in their uterus,this is so because babies are very delicate and reactive to strong chemicals

Cardiogenic shock shock results when: The body loses an excessive amount of blood The body's blood vessels are dilated The left ventricle cannot pump enough blood to meet the body's demands Trauma results in temporary loss of the autonomic function of the spinal cord

Answers

Answer:

The left ventricle cannot pump enough blood to meet the body's demands

Explanation:

Cardiogenic shock is a problem that occurs when the heart cannot pump the adequate amount of blood to supply all organs. In this situation, the left ventricle, responsible for pumping oxygen-rich blood, cannot pump enough blood to tend the body's demands. This causes blood pressure to drop and oxygen in the tissues to be lacking. In addition, this situation can cause accumulation of fluid in the lungs. This is a very dangerous problem, being one of the main causes of myocardial infarction.

main component of protein

Answers

Answer: April Cashin-Garbutt, MA, reviewed it (Cantab) Collagen is a protein composed up of amino acids, which are carbon, oxygen, and hydrogen molecules. Glycine, Proline, Hydroxyproline, and Arginine are among the amino acids found in collagen. Collagen makes up around a third of the proteins in the human body.

Explanation:

knowledge!

Which of the following is NOT associated with Okazaki fragments?

A.
lagging strand

B.
ligase
C.
bases added to the 3’ end

D.
continuous replication

E.
DNA polymerase III

Answers

Answer:

The correct answer is - D. continuous replication.

Explanation:

Okazaki fragments are short DNA sequences synthesized in the lagging strand as DNA polymerase enzyme is able to synthesize only from 5' to 3' so nucleotide can not bind on 5' end but only 3' end and the DNA strands are antiparallel.

They are short fragments of DNA synthesized from RNA primers on the lagging strand and combined by the ligase enzyme. Okazaki fragments show a discontinuous manner in the synthesis of DNA.

The correct answer is D. continuous replication as they don't have it.

Okazaki fragments are brief DNA sequences synthesized withinside the lagging strand as DNA polymerase enzyme is capable of synthesizing simplest from 5' to 3^ high SO nucleotide can't bind on 5' cease however simplest 3' cease and the DNA strands are antiparallel.

They are brief fragments of DNA synthesized from RNA primers at the lagging strand and blended via way of means of the ligase enzyme. Okazaki fragments display a discontinuous way withinside the synthesis of DNA.

What are  Okazaki fragments?

Okazaki fragments are small sections of DNA that might be fashioned all through the discontinuous synthesis of the lagging strand all through DNA replication. They are essential due to the fact they permit each daughter strand to be synthesized, which is vital for molecular division.

Thus it is clear thsat Okazaki fragments are not associated with continuous replication.

To know more about Okazaki fragments refer to the link :

https://brainly.com/question/21265857

What term is used to describe the number of chromosomes in a gamete, such as
an egg cell or a sperm cell?

Answers

Answer:

The biology term, haploid can also refer to the number of chromosomes in egg or sperm cells, which are also called gametes

The term used to describe the number of chromosomes in a gamete would be haploid.

Gametes are usually formed by meiosis and meiosis is referred to as reductional division. When a normal diploid (2n) cell divides by meiosis, the daughter cells would have half the number of chromosomes of the parent cell. In other words, the daughter cells will have n number of chromosomes as opposed to 2n.

Cells with n chromosome numbers are generally referred to as haploid while those with normal 2n chromosome numbers are said to be diploid. Egg and sperm cells are haploid cells.

More on haploid cells can be found here: https://brainly.com/question/15475325

Conver 3 miles to feet

Answers

Answer:

1mile = 5280ft

3miles = 3x5280 = 15840ft

Answer:

the answer is 15840 feets

Compare and contrast the cell cycle with mitosis and the cell cycle with meiosis. Citing 4 similarities and 5 differences.

Answers

Answer:

according to the type

Explanation:

they depend on the type

Scientists observed that the populations of top-level consumers in a particular ecosystem were rapidly decreasing. Further studies revealed that there was also a decline in producer productivity. Which other changes did the scientists most likely observe in the ecosystem?


increased producer diversity


decreased population size at all levels


decreased primary consumer populations only


increased primary and secondary consumer diversity

Answers

Answer:

The correct answer is - decreased population size at all levels.

Explanation:

A decrease in the productivity of producers of an ecosystem will lead to a decrease in all other organisms of the ecosystem including top-level consumers to the bottom-level producers due to the fact that producers provide energy and food to primary consumers.

It is because they are the only organisms that convert the sunlight to usable energy and food that transfer from one trophic level to other, so if the population of producers or their productivity will decrease then there will be decreased population size at all levels.

Is this right ????????????????????

Answers

I do believe they made a mistake ???

Answer: yes it is correct

Explanation:

Hope this helps you with your science work :)

An opportunistic predator switches prey, capturing whichever prey species is most abundant. As soon as the prey numbers dwindle and another species becomes more abundant, the predator will consume the more abundant species. In doing so, this predator maintains great biodiversity in the community. This type of predator is called a

Answers

Answer:

The correct answer is keystone predator.

Explanation:

In sustaining the composition of an ecological community, a keystone species plays an essential function. In the absence of keystone species, the ecosystem would fail to exist and would become drastically different. A predator is a classic illustration of a predator, which inhibits a specific herbivorous species from eradicating the dominant species of plants. In the non-existence of predators, the herbivorous prey would increase enormously and would clean the entire essential plant species, and thus, drastically change the significance of the ecosystem.

Which are best to survive?
The fittest to the best adapted? Why?

Answers

Answer:

The best to adapted because they already know how to survive through the toughest situations instead of being fit which leads them to nowhere but death

have a good day :)

Explanation:

a natural source of carbon dioxide in our atmosphere​

Answers

Answer:

Animals, Humans, Oil, Gases, And Coal all contain Carbon Dioxide in our atomosphere.

Explanation:

In which phases of mitosis and meiosis are the principles of segregation and independent assortment at work?

Answers

Answer:

1-Meiosis:  

- Independent assortment: Anaphase I

- Segregation: Anaphase II

2-Mitosis  

- Segregation: Anaphase  

Explanation:

The Principle of Independent Assortment described by Mendel indicates the mechanism by which different genes get sorted into gametes (i.e., eggs and sperms in mammals) independently of one another, while the Principle of Segregation indicates the mechanism by which gene variants (i.e., alleles) segregate (separate) into gamete cells. In eukaryotic organisms, independent assortment occurs during anaphase I of meiosis, when each pair of homologous chromosomes separate. The assortment of homologous chromosomes during anaphase I explain how genes on different chromosome pairs will segregate independently of one another. On the other hand, the separation (segregation) of sister chromatids occurs in Anaphase II, where gametes carrying single gene variants (i.e., alleles) for each locus are generated.

What domain is eubacteria found in?

Answers

What domain is eubacteria found in?

[tex]{\boxed{\mathcal{\red{AnSwEr:}}}}[/tex]

[tex]\sf\purple{Domain \:Bacteria.}[/tex]✔

The Eubacteria are found in the domain Bacteria.Eubacteria means [tex]\sf\pink{true\:bacteria}[/tex], it is unicellular, lacks a proper nucleus and is a prokaryote.

[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]

⚠️PLZ HELP⚠️
Figurative language helps a reader
Learn a foreign language
b. Visualize the poem
c. Make connections to the poem
d. None of the above
Please select the best answer from the choices provided
OA
ов
OD

Answers

Answer:

B. Visualize the poem

Explanation:

Figurative language such as Onomatopoeia gives help by visualizing the poem, because you can imagine the sounds and use it as an example to picture what would be going on in the story.

Answer:

b

Explanation:

There are marked differences in the type of organisms found at four different locations at the same tidal height along ta rocky shore. What might account for this

Answers

Answer and Explanation:

Many elements can be responsible for this, among them, we can mention the presence and absence of predators in the different places on the rocky coast. This is because predators can influence not only the number of organisms found, but also the types of organisms.

Another element that may be the cause of this variability is the availability of resources necessary for the life of these organisms, in addition, the impact of the waves on the rocks, can cause the variability of the organisms, since some may not be able to resist the impact of the waves.

Using and spectrophotometer, you measure 2 dilutions of NADH, and get absorbance values of 0.4 for sample A, and 0.2 for sample B. You know that the path length is 1 cm, and the extinction coefficient for NADH is 6220 (L Morcm). Using the Lambert-Beer Law equation (below), calculate the concentrations of sample A Select] and Sample B (Select ] A = log10 () = Ecl Where: A- Absorbance C- Concentration (mol 1 - Path length (cm) E = molar decadic extinction coefficient L mol. cm 1o - Intensity of the incident light 1 - Intensity of the transmitted Night

Answers

Answer:

The answer is "The concentration sample A= 0.00006[tex]\frac{mol}{L}[/tex] and concentration of sample B is 0.00003[tex]\frac{mol}{L}[/tex]".  

Explanation:

Length of path [tex](l)=1 \ cm\\\\[/tex]

Coefficient extinction[tex](\varepsilon )=6220\ \frac{L}{Mol \ cm}\\\\[/tex]

Absorbace of sample [tex](A)=0.4\\\\[/tex]

Absorbace of sample [tex](B)=0.2\\\\[/tex]

For sample A:

[tex]A=\varepsilon cl\\\\0.4=6220 \times c \times 1\\\\c=\frac{0.4}{6220}\\\\[/tex]

   [tex]=0.00064\ \frac{mol}{L}[/tex]

For sample B:

[tex]A=\varepsilon cl\\\\0.2=6220 \times c \times 1\\\\c=\frac{0.2}{6220}\\\\[/tex]

   [tex]=0.00003\ \frac{mol}{L}[/tex]

Which of the following cells do not have specialized tasks in an organism? 1.) prokaryotic cells 2.) eukaryotic cells 3.) animal cells 4.) plant cells

Answers

Answer:

A. Prokaryotic cells

Explanation:

Prokaryotic cells don't have organelles

Artificial wetlands ________. are the major program for replacing lost natural wetlands purify water for use as bottled drinking water are a source of arsenic contamination in Bangladesh are created using xeriscaping methods can help purify water and also provide wildlife habitat

Answers

Artificial wetlands can help purify water and also provide recreational opportunities. They are the major program for replacing lost natural wetlands purify water for use as bottled drinking water are a source of arsenic contamination in Bangladesh are created using xeriscaping methods can help purify water and also provide wildlife habitat.

Chemical energy in the form of food is changed into what?

Answers

Food is the most important source of chemical energy for living things. The chemical energy in food is converted, or changed, by the body into moving mechanical energy and heat energy. People have invented ways to use the chemical energy of substances to power machines.

Research has found that chimpanzees in one area make spears to help them hunt bushbabies (African lorises). The chimpanzees locate a tree trunk in which the bushbabies live. They then select a tree branch, trim off the leaves and side branches, and trim the end of the branch to form a sharpened tip. The chimpanzees thrust these branches, like spears, into the tree to try to stab bushbabies (see the Lab 11 Exercise Image Library on p. 336 of your lab manual for associated images).
Is this behavior an example of nonhuman primate culture?
1. Yes
2. No
Primates often work together while hunting and then share the meat with others in the group.
1. True
2. False

Answers

Answer:

1. Yes

1. True

Explanation:

A.

Yes, it is a nonhuman primate cultural example: Despite the fact that many nonhuman primates lack apparent cultural traditions in the same manner that humans do, primatologists have uncovered a number of behavioral habits that differ between populations and are passed down through socialization and language interaction. The employment of tools by chimps for hunting is one of the most prominent examples of this. Chimpanzees in the African Savannah have been observed fashioning sticks into weapons to hunt bush infants, according to researchers. In each example, a chimp changes a branch by snapping off one or two ends and sharpening the stick with its teeth. The spear is then jabbed into the bottom of the trunk, where the bush infants slumber. Because this complicated behavior appears to differ between communities, it is thought that chimpanzee tool usage is socially acquired, and hence a cultural behavior.

B.

Chimpanzees hunt in groups so that they may corner their prey even if the canopy is continuous. Each chimpanzee within the hunting parties has a specific function to play during an arboreal hunt. Drivers are responsible for keeping the prey moving in a specific route and following them without trying to grab or catch them. Blockers are positioned at the base of the trees, climbing up to stop prey from fleeing in the other direction. Chasers move swiftly and attempt to capture the prey. Finally, when one monkey approaches, ambushers hide and flee. The food is delivered to all members of the hunting group once the animal has been trapped and slaughtered.

How can we control the laser light show to stop it from hitting the crowd

Answers

Answer:

just turn it off

Explanation:

Using mirrors to reflect the lasers and “bounce” them to other sides of the room

A white-tailed deer cannot make its own food and must consume other organisms
for its nutrition. Therefore, the white-tailed is considered a (an)
A)heterotroph.
B)producer.
C)chemotroph.
D)autotroph. .

Answers

Answer:

A) Heterotroph

Explanation:

White tailed deers are consumers and do not produce their own food. Most mammals can’t either. Putting in the heterotroph category.

Hope this helps, good luck!

The answer is option A

Pls help I’ll brainlest

You can pick more than one I think

Answers

Answer:

I say the correct answers are C and D and E maybe.

Explanation:

But I say both good and right answer are C and D. And just E for backup!

Most of the solar radiation absorbed by Earth's surface is later radiated back into space as to which type of electromagnetic radiation?"

Answers

Answer:

The sun's visible wavelengths of radiation pass easily through the atmosphere and reach Earth. Approximately 51% of this sunlight is absorbed at Earth's surface by the land, water, and vegetation. Some of this energy is emitted back from the Earth's surface in the form of infrared radiation

Explanation:

Please answer only if you know this is a final 

Answers

Answer:

Explanation:

The symbiotic relationship between a flower and the insect that feeds on its nectar is an example of a. mutualism because the flower provides the insect with food and the insect pollinates the flower.

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