Which statement is true for the cell in model A but not for a cell in model B?

O A. The cell membrane is represented by the surfaces of the cube.

O B. Substances can enter the cell by passing through the cell membrane.

C. The entire cell surface is in contact with the external environment.

O D. Substances can leave the cell by passing through the cell membrane.​

Which Statement Is True For The Cell In Model A But Not For A Cell In Model B? O A. The Cell Membrane

Answers

Answer 1

Answer:

C. The entire cell surface is in contact with the external environment.


Related Questions

What are the adaptations of a seablite to survive its environment

Answers

Answer:

Adaptations are characteristics that enable plants and animals to be successful in a particular environment. These adaptations come in a variety of forms, an example is camouflage (Mbgnet.net, 2015). Animals are able to camouflage to their environments to help them hide from their predators, or hunt for their prey. As well as keeping them safe while they sleep, and allow them to move around more freely.

How has the Douglas-fir adapted to enable its survival in the taiga biome?
a. low growing
b. perennial
C.
waxy needles
d. survive on limited nutrients

Answers

Answer:

b. perennial

Explanation:

because the Douglas fir several years because of which the area remains covered with forest and survives and adapt itself to the Taiga biome

Describe Patterns Explain in your own words how sharks have changed throughout
their evolutionary history and suggest some reasons why these changes may have
occurred. Think about the shark species you saw in this lab and how they differ and how
they are the same.

Answers

Answer:

HOPE IT HELPS

Explanation:

Sharks have been around for over 400 million years, and throughout their evolutionary history, they have undergone a variety of changes. Some of these changes include the development of more streamlined bodies, the evolution of different teeth shapes and sizes, and the development of more efficient swimming techniques. These changes may have occurred due to a variety of factors, such as changes in the environment, changes in food sources, and competition with other species.

For example, the shark species I saw in this lab, the Great White Shark, has a unique set of adaptations that allow it to be an efficient predator. Its streamlined body and powerful tail allow it to swim quickly and efficiently through the water, while its sharp teeth and keen senses help it to locate and capture prey. Other shark species, such as the Hammerhead Shark, have evolved unique head shapes that help them to detect and capture prey in different ways. These adaptations may have evolved due to differences in food sources or competition with other species. Overall, the evolutionary history of sharks is complex and fascinating, and studying these patterns can help us to better understand how species adapt and evolve over time.

Sharks have undergone significant changes throughout their evolutionary history. Over millions of years, they have adapted and diversified to occupy various ecological niches in the marine environment. These changes can be observed in their anatomical features, reproductive strategies, and feeding habits.

One reason for the changes in sharks' evolutionary history is the need to exploit different food sources and habitats. Sharks have evolved different teeth shapes and jaw structures to suit their preferred prey, ranging from small fish to large marine mammals.

Additionally, changes in body shape and fin structure have enabled them to be efficient swimmers in different environments, such as open ocean or shallow coastal waters.

Another reason for evolutionary changes in sharks is competition and predation pressure. As new species emerge and ecosystems evolve, sharks have had to adapt to survive and thrive in changing conditions. Natural selection favors individuals with advantageous traits, leading to the emergence of new species and the extinction of less adapted ones.

In the lab, different shark species may exhibit variations in size, coloration, fin shape, and behavior. These differences reflect their evolutionary adaptations to specific environments and ecological roles.

Despite these variations, all shark species share common ancestry and basic characteristics such as cartilaginous skeletons, powerful jaws, and an efficient swimming ability, which have been refined over millions of years of evolution.

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the images represent ecosystems in the eastern united states. rank the ecosystems by their ability to remove and store carbon, from greatest to least.

Answers

The mangrove forest which holds the most Carbon dioxide followed by forest shown by second image and at last the vegetation on farms holds and releases the least amount of Carbon dioxide.

Carbon is transferred through one storage reservoir to another through a range of mechanisms. Plants, for example, transfer carbon dioxide from the atmosphere into the biome via photosynthesis in the food chain. They use solar energy to chemically incorporate carbon dioxide, hydrogen, and oxygen from water to form sugar molecules. Animals that consume plants metabolize the sugar molecules to obtain energy. Respiration, excretion, and decomposition all return carbon to the atmosphere or soil, thus completing the cycle.

Erosion, for example, releases carbon into the atmosphere slowly, whereas volcanic activity releases it quickly. Another way to quickly release carbon into the atmosphere is to burn fossil fuels in automobiles or power plants.

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Question 16 of 25
What is gene flow?
A. Two populations transferring genes
OB. When a population splits in two
OC. Selection for extreme traits
OD. A mutation becoming more common
SUMIT

Answers

A. Two populations transferring genes is gene flow

What alters two populations due to gene flow?

Gene flow has the effect of reducing genetic diversity among populations, inhibiting or delaying the development of populations in various geographic locations into distinct species of the disease.

The frequencies of alleles will fluctuate as a result of gene flow, the transfer of alleles caused by the movement of people or gametes across populations. Evolutionary change, which is frequent in natural populations, comes from deviation from any of these requirements.

Gene flow increases genetic variation when there is a continuum of alleles in the same way that a source of small-effect mutations would.

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what charges attract one another? what charges repel one another?

Answers

what charges attract one another?

If a positive charge and a negative charge interact, their forces act in the same direction, from the positive to the negative charge. As a result opposite charges attract each other: The electric field and resulting forces produced by two electrical charges of opposite polarity. The two charges attract each other.

what charges repel one another?

Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges. The size of the force varies inversely as the square of the distance between the two charges.

hope it helps

#carry on learning

Question is in picture

Question is in picture

Answers

Answer:

solar energy

Explanation:

because that's the answer

DNA originally contains two parent strands, each forming one side of the double helix. After replication, each of these parent strands is copied into a daughter strand, so the overall result is 2 identical daughter cells. The process of DNA replication. In a semi-conservative model of DNA replication, which of the following is true?

The daughter DNA molecule consists of 1 parent strand and 1 new strand


The daughter DNA molecule consists of 2 newly formed strands


The daughter DNA molecule consists of 2 parent strands


The daughter DNA molecule consists of an uneven mix of old and new strands

Answers

DNA replication is semi-conservative because the original molecule separates into two different strands, and each of them works as a model for a new strand to grow. A) The daughter DNA molecule consists of 1 parent strand and 1 new strand.

Why is DNA replication a semi-conservative event?

DNI replication is semi-conservative because, after replication, each new molecule carries an original DNI strand and a new one. The fact that the new molecule is composed of an original strand makes it semi-conservative. The old existing strands are used to synthesize the new complementary strand.

The replication products are double-stranded DNA molecules, each carrying an original strand and a new one.

The correct option is A) The daughter DNA molecule consists of 1 parent strand and 1 new strand.

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In a semi-conservative model of DNA replication, the daughter DNA molecule consists of 1 parent strand and 1 new strand. Option 1.

Semi-conservative DNA replication

The process of DNA is naturally semi-conservative.

This is because each strand of the original DNA forms a template for the synthesis of a complementary strand. Thereafter, each of the newly synthesized strands forms a double helix structure with their respective parent strands.

Thus, e newly replicated DNA molecule usually consists of 1 old strand and 1 new strand. Consequently, the process is described as being semi-conservative.

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Where are the A, B and RH antigens located

Answers

Answer: The A, B, and Rh antigens are located on the surface of red blood cells.

Explanation:

Help me with this ASAP!!

Does biomass contribute to global climate change?

Answers

Biomass may contribute to global climate change because certain trophic levels produce greenhouse gases.

What are greenhouse gases?

Greenhouse gases are specific types of gases that can maintain heat (solar radiation) on Earth's surface and thus increase Earth's temperature.

The ruminant animals produce methane, which is an important greenhouse gas associated with the global climate.

In consequence, the sudden increase in animal husbandry due to human activities may also increase the effects of climate change.

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Which of the following requires the use of energy and the help of transport
proteins to move a molecule across a cell membrane?
A. Facilitated diffusion
B. Passive transport
C. Active transport
D. Osmosis diffusion

Answers

Answer:

C. Active transport

Explanation:

Active transport is the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.

The rest of these options do not require energy because they are passive.

C because it says active duh

Before classifying insects into different orders, review the larger classifications for insects:

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta

Conduct research online to determine the characteristics an organism must have to be classified in each of the taxonomy levels shown. Note the characteristics you find in the answer space.

Answers

Different types of kingdoms exist. All animals are considered to be members of the kingdom Animalia. It also goes by the name Metazoa. Animals that have both jointed limbs and hard exoskeletons make up the phylum Arthropoda.

What is a classification for insects?

The following are some traits of arthropods: They are exoskeleton-equipped. Their appendages are joined. They are known to have segmented bodies.

Therefore, Examples of Order The Hemiptera Giant Water Bug Arthropoda, the phylum. Arthropoda Hymenoptera Bees, wasps, and ants Lepidoptera moths, butterflies, etc. Arthropoda.

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A____ is an area occupied and defended by an organism or population

Answers

Answer:

The picture is the answer

Explanation:

A____ is an area occupied and defended by an organism or population

A biochemical Lugol test involved dropping iodine on a cracker and observing
whether the reagent changes color or not. If this test indicated that starches are
present, which monomer would be associated with this test?

Answers

Answer:

glucose

Explanation:

Starch is composed of glucose monomers linked by glycosidic bonds.

Describe an investigation using flashlights that are all the same?

Answers

One investigation using flashlights that are all the same is the Flashlight Investigation which is part of the Light and Shadow Workshop.

This workshop was developed using basic tools such as mirrors, lenses, and flashlights as the basis for explorations that can help build an intuitive understanding of how light works.

The activities are divided into five sessions, although the investigations can be extended well beyond this format. The first session, Flashlight Investigation is outlined here, the other sessions are outlined in separate Instructables.

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which process could cause ice to form a thin layer over a lake

Answers

Answer:

condensation

Explanation:

Reactive hyperemia is an example of .......... control of local blood flow .
and is a ........ response

A) Myogenic-Short term
B) Chemical-Long term
C) Neural-Short term
D) Metabolic-Short term

Answers

Answer:

metabolic short term

Explanation:

Reactive hyperemia is the blood flow response to blood flow Occlusion whereas active active is a blood flow response to increase tissue metabolic activity

Given the following gene sequence determin which of the choices would be a frameshift mutation ATCTAGGTACTA:

Answers

Answer:

You did not enter the answer options, but a frameshift mutation causes the exclusion or addition of one of the bases of the codon, which makes the reading of the codons assume an incoherent sequence and impair the reading of the same.

Explanation:

A frameshift mutation occurs when there is the exclusion or addition of one of the bases that form a codon. As you know, codons are formed by 3 bases that are released for the formation of proteins. If there is inclusion when excluding one of these bases, the reading is incorrect, meaningless and inefficient.

As an example, we can use the sequence of bases that you exposed in the question above, ATCTAGGTACTA. The codons in this sequence would be formed as follows: ATC TAG GTA CTA. Now imagine that the first base of the first codon was excluded. The codons would be formed in an incoherent fashion (TCT AGG TAC TA) and would not allow a correct reading, the same would happen if a base was added to one of the codons.

Answer: ATTAGGTACTA.

Which organelle is labeled E?

Answers

It is b I just took the test

Type the correct answer in the box. Spell all words correctly.
What is a close relationship between two organisms that live together called?
The close relationship between two organisms that live together is called
Reset
Next

Answers

Answer:

symbiosis.

Explanation:

The term that you are referring to is symbiosis. (a symbiotic relationship)

Symbiosis is a proximate and often long-term interaction between two or more different biological species.

What are the 3 basic cellular structures that every cell needs? What's their individual function and why are each of the 3 basic cellular structures needed?

Answers

The three basic cellular structures that every cell needs are the cell membrane, the cytoplasm, and the genetic material. The cell membrane functions to regulate what enters and exits the cell, the cytoplasm provides a medium for cell organelles to function in, and the genetic material contains the instructions for cell function and replication.

Cell Membrane: The cell membrane is a thin, flexible barrier that encloses the cell and separates its internal environment from the external environment. It is made up of a phospholipid bilayer and is selectively permeable, meaning it regulates what substances enter and exit the cell.

Cytoplasm: The cytoplasm is a gel-like substance that fills the inside of the cell and contains various cell organelles, such as mitochondria, ribosomes, and the endoplasmic reticulum. The cytoplasm is important because it provides a medium for the organelles to function in and facilitates the movement of materials within the cell.

Genetic Material: The genetic material of the cell is the DNA that contains the instructions for cell function and replication. In prokaryotic cells, the genetic material is found in the cytoplasm, while in eukaryotic cells, it is found in the nucleus.

In summary, every cell needs a cell membrane to regulate what enters and exits the cell, cytoplasm to provide a medium for cell organelles to function in, and genetic material to contain the instructions for cell function and replication.

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What type of relationship exists between Carbon dioxide and energy in cellular respiration?

Answers

Answer:

converts oxygen and glucose into water and carbon dioxide

Explanation:

diferencia celular y la activación y desactivación de genes

Answers

Answer:

nilla

Explanation:

extra nillaa

The structure of rough endoplasmic reticulum

The structure of rough endoplasmic reticulum

Answers

The structure of the rough endoplasmic reticulum increases the surface area for the synthesis of proteins.

What is the Smooth endoplasmic reticulum?

The rough ER is a membrane-bound organelle with tubules and cisternae found in eukaryotic cells. Rough ER has ribosome-studded flattened sacs for protein synthesis. Ribosomes on rough ER allow protein synthesis into ER lumen or membrane.

Rough ER synthesizes, folds, and modifies proteins. The attached ribosomes on rough ER synthesize proteins for secretion, plasma membrane, or other organelles. The flat sacs increase ribosome surface area. More surface area gives  more protein synthesis in rough endoplasmic reticulum, boosting efficiency.

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Function

Nuclear envelope

Nuclear pore

Ribosomes

Smooth endoplasmic reticulum

There are two regions of the endoplasmic reticulum (ER)-a rough region and a smooth region-that differ in structure and function. Although both types of ER are composed of the same type of membrane, rough ER consists of flattened sacs that are studded with ribosomes, while smooth ER forms a series of tubules that lack ribosomes. The structure of rough endoplasmic reticulum  ---------- the --------- for the synthesis of  ----

What happens to pyruvic acid in the krebs cycle?

Answers

Answer:

During the Krebs cycle, pyruvic acid from glycolysis is used to make carbon dioxide.

Explanation:

I love biology.   :)

What is the correct clases for this drugs

‏Compazine
heelp me please

Answers

Answer:

Compazine belongs to a class of drugs called Antiemetic Agents; Antipsychotics, Phenothiazine.

Which of the following is an application for cloning and polymerase chain reaction (PCR) technologies?

A. Amplification of DNA fragments from a drop of semen at a crime scene
B. Analyzing the speed of enzymatic function in chemical reactions
C. Generating large quantities of insulin for use by diabetics
D. Measuring blood cholesterol levels in routine medical tests

Answers

It is A: Amplification Of DNA fragments from a drop of semen at a crime seen

Exp: Amplification of DNA fragments from a drop of semen at a crime scene is an application for cloning and polymerase chain reaction (PCR) technologies.

Answer: its A

Explanation: I took the test

a. Proteins are ________________ of amino acids.
b. The order of amino acids found in a protein is determined by the order of _____________ found in DNA.
c. Proteins fold into the same three-dimensional shape regardless of the _______________ of amino acids.
d. The function of a protein is determined by its _____________ shape.

Answers

Answer:

Tff

Explanation:

Ggggg

Answer:

a. monomers

b. bases

c. sequence

d. primary

Explanation:

There's no word bank provided or anything, but I'm assuming that it's most likely correct.

how are traits which are not beneficial to a living organism removed from its gene pool

Answers

Answer:

recessive traits is the answer

Organisms who carry those traits are less likely to be chosen as a mate, slowly reducing that gene from the species

How can natural selection and genetic drift impact the evolution of a species?

Answers

Answer:

Both natural selection and genetic drift can impact the evolution of a species in different ways. Here are some examples:

Natural selection can cause the evolution of new adaptations that improve the fitness of a population. For example, if a population of birds lives in an environment with two types of seeds, birds with larger beaks may be better able to crack open the larger seeds and have a higher chance of survival and reproduction. Over time, the frequency of the larger beak trait may increase in the population, leading to the evolution of a new adaptation.

Genetic drift can cause the loss of genetic diversity within a population, which can reduce the ability of a population to adapt to changing environmental conditions. For example, if a population of insects experiences a severe reduction in population size due to a natural disaster, certain alleles may be lost from the population due to chance events. This can reduce the genetic diversity of the population and make it more vulnerable to environmental changes in the future.

Explanation:

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