Question 4 of 10
Which of these is not a function of some membrane proteins?
O A. Catalyzing chemical reactions in the cell
B. Receiving messages from other cells
C. Recognizing other types of cells
O D. Keeping polar molecules out of the cell

Answer:

There could be chemical reactions like indigestion, fermentation, putrefaction and gas formation and, if prolonged, can lead to toxemia and disease.

Explanation:

Answer:

Bad food combinations can lead to stomach ache, bloating, fatigue, gas, and discomfort. If you continue consuming the wrong food combinations for a long period, it can result in rashes, chronic digestion problems, and bad breath.

Explanation:

Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.

In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.

Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.

Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms,  annelid worms, sponges, and sea stars.

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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.

Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.

Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.

Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.

Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D

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The Question was Incomplete, Find the full content below :

The organisms which can reproduce by fragmentation are:

(a) Corals and Sponges

(b) Corals and Spirogyra

(c) Sea anemone and Spirogyra

(d) Sponges and Sea anemones.

A density dependent factor is a variable that influences the population size and growth rate of a species based on the population's density or number of individuals per unit area.

Out of the options given, the density dependent factor is A) water supplies. The availability of water can influence the growth rate and population size of organisms living in that area. As the population size increases, the demand for water increases, which can lead to competition for limited resources, decreased reproduction, and increased mortality.

B) Flood, C) forest fire, and D) volcanic eruption are examples of density-independent factors because they affect the population size and growth rate irrespective of the population density. These factors can cause widespread damage, decrease the carrying capacity, and cause population declines regardless of the number of individuals present in the area.

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Resource partitioning occurs when two species that share the same niche, make use of resources differently in order to avoid competition. Option B) Resource partitioning is occurring between these two species.

Intra- or interspecific competition is an ecological and evolutive process very common in nature.

Competition between different species might be due to the same resource use (food, territory, shelter, etcetera). When a resource is useful for two or more species, and is limited, they compete to gain it.

The principle of competitive exclusion states that different species with the same requirements sharing the niche can not coexist indefinitely based on the same limited resource.

When two competing species coexist, this is because of resource partitioning or niche differentiation.

Differentiation of effective niche is closely related to character displacement.

Character displacement is the result of interspecific competition, in which two or more species that live in the same habitat manage to avoid competition by developing different traits.

Morphological divergence, or any adaptative trait development, fixated genetically, is the product of niche segregation.

Species tend to differentiate morphologically in the presence of strong competitors. Traits divergence favors coexistence in the same place.

In the exposed example, we can see that,

These populations can share the same niche because of resource partitioning. Most of them feed in the upper part, but to avoid competition, one population feeds on insects, and the other one feeds on fruits.

This resource partitioning might lead to the occurrence of character displacement related to the feeding and digestive apparatus and predation strategies. However, the table does not reflect this information.

The correct option is B. Resource partitioning is occurring between these two species.

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This is solved by using binomial expansion. Therefore, option D is correct.

A probability is a numerical representation of the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities. Information about the possibility that something will happen is provided by probability.

A couple would like to know what the probability is that out of five children, three will be girls. This is solved by using binomial expansion. Therefore, option D is correct.

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If the spinach leaf disks were boiled before being tested, all the leaf disks would sink which is as a result of the lack of space for gases.

This is referred to as the condition in which a substance goes below the surface of a material and is usually in a submerged position due to some factors.

When the spinach leaf disks is boiled, gases form which are usually in the form of vapor and therefore gives rise to it sinking as a result of there not being space for them and the photosynthetic ability is greatly reduced which is therefore why it was chosen as the correct choice.

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Answer:

» Macromolecules are microscopic organisms that are responsibles for cell production and organelle production in Anatomic biology

Answer:

In bio, What do macromolecules form?

Help

Answer:

a

Explanation:

both of the cases the organisms are fighting for a resource

A. These are examples of competition because the organisms are fighting for resources.

Competition and predation are two different types of relationships that can exist between different organisms in an ecosystem. Competition occurs when two or more organisms are fighting for the same resources, such as food, water, or shelter.

This can occur within or between different species. In the example given in the question, woodpeckers and squirrels compete for nesting rights in the same holes and spaces in trees, while lions and cheetahs compete for the same antelope and gazelle prey.

On the other hand, predation occurs when one organism (the predator) hunts, kills, and consumes another organism (the prey). This type of relationship is often seen between carnivores and herbivores, or between animals and insects. In the example given in the question, lions and cheetahs are predators that hunt and consume antelope and gazelle prey.

It is important to note that in both competition and predation, one organism may benefit while the other is harmed.

For example, in predation, the predator benefits by getting food while the prey is harmed by losing its life. In competition, one organism may gain access to the resources while the other loses out, which can affect their ability to survive and reproduce.

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Answer:

Because the saliva is mixed completely

Also because of carbohydrates

Explanation:

(BTW that never happens to me I may vomit because it's pretty disgusting in real life )

Answer:

If we chew rice or bread for few minutes,it starts tasting sweet because it converts starch into glucose into sugar so it tastes sweet.

Answer:

Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.

Answer:

an ocean shore

Explanation:

the water and wind erode the sand

Answer:

Neil Shubin bases his argument that the anatomy of Tiktaalik is relevant to that of humans by discussing specific features of the anatomy of Tiktaalik that vary from typical fish anatomy and correspond to features of the human body. For example, he points out that Tiktaalik has a neck that is able to bend independently of the rest of the body, unlike fish, and like all terrestrial vertebrates, including humans. Therefore, the evolutionary history of humans can be traced to an organism similar to Tiktaalik, resulting in the concept of the "inner fish."

Explanation:

Answer: a, suspension

Explanation:

Answer:

Explanation:

What about war? Why can't we do anything about war?

How about our needs and wants beyond shelter and food?

Of all the things plaguing the world, I think over population is one of the things we can do something about. You are right. But needs and wants play a huge role in why we can't seem to do anything right.

Of course on thinking it over, we have problems that have their roots in overpopulation like pollution.

Answer:

the answer is A. all the other statements are true.

The two pieces of evidence that support the theory of the expanding universe are the red shift of light from distant stars and the existence of cosmic background radiation.

The correct answer is option B.

1. Red shift of light from distant stars: The observation of redshift in the light coming from distant galaxies provides evidence for the expansion of the universe. Redshift occurs when the light waves from an object moving away from an observer are stretched, causing a shift towards longer wavelengths. This phenomenon is consistent with the Doppler effect, where the wavelength of light appears to stretch as the source moves away. The redshift of light from distant stars indicates that galaxies are moving away from us and from each other, supporting the idea that the universe is expanding.

2. Existence of cosmic background radiation: The discovery of cosmic background radiation further supports the theory of the expanding universe. Cosmic background radiation is a faint, uniform microwave radiation that permeates the entire universe. It is believed to be residual radiation from the Big Bang, the initial event that is thought to have initiated the expansion of the universe. The presence of cosmic background radiation provides strong evidence for the hot, dense early stages of the universe and its subsequent expansion.

Based on the information provided in the diagram, it is not possible to determine the identity or nature of the celestial objects labeled X. The diagram only represents the expansion of the universe over time and does not provide specific details about individual celestial objects.

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Answer:

By reducing the amount of carbon dioxide emissions contributing to global warming

Explanation:

Global warming is an arising problem caused by the emission of gases called GREENHOUSE GASES into the Earth's atmosphere. The greenhouse gases include Carbon dioxide, methane etc.

Carbon dioxide as the principal cause of global warming is emitted when fossil fuels like petroleum products like diesel or petrol are burned. Therefore, the use of automobiles like cars releases CO2 into the atmosphere. Therefore, replacing diesel/petrol fueled vehicle to electric-operated vehicles may change the environment by reducing the amount of greenhouse gases (CO2) emitted into the atmosphere, ultimately helping to reduce global warming.

Answer:

Answer if B, Cohesion

Explanation:

Think about if you had glue and paper, the glue sticks to the paper, the same as water would stick to the sides of the tree/stem, to draw the water up.

In the graph shown here, the lynx population peaks long after the hare population.

Population- A population is an identified grouping of objects with the purpose of analysis & data collection. Examples include people and animals. It comprises of a related collection of species that live in a specific area and have the ability to interbreed.

The study of population dynamics, or population biology, provides data essential to biological studies. Additionally, it aids in the prevention of agricultural pests and the preservation of rare and endangered species. Examples include the American, Indian, and Chinese populations as well as the overall public of a city.

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Answer:

Self definition is being able to know who you are and what your purpose is in life. An example of self definition is when you know you are a strong, capable, confident teacher and husband.

Answer:

self-definition- a person's essential being that distinguishes them from others, especially considered as the object of introspection or reflexive action.

1. The flattened form of objects like leaves. inside the respiratory system, the alveoli. the gastrointestinal system's villi. 2. While turtles have specialized excretory openings, fish have gills.

Alveoli modifications:

Moisture-filled walls: Gases dissolve in the moisture, which makes it easier for them to cross the gas exchange surface. Gases can travel through permeable walls. large blood supply, ensuring that blood rich in carbon dioxide is transported to the lungs and blood rich in oxygen is removed from the lungs.

Gills are found in fish, while specialized excretory openings are seen in turtles. These gaseous exchange systems have a huge surface area, a plentiful blood supply, and are ventilated by water movement for a sharp gradient in concentration. The main distinction is where the gas exchange surface is located.

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The first stage of a progression for balance training is static balancing exercising.

Standing straight, putting your hands on your hips, lifting one foot off the ground, and maintaining that static posture for as long as you can without letting your hands leave your hips or allowing your foot hit the ground is how to take this test.

Exercises for balance training include strengthening your legs and core, two muscles that are important for maintaining your balance. These exercises can help prevent falls by improving stability. Balance exercises can be challenging, much like some of the most challenging yoga positions.

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Question:

Which of the following is the first step in a balance training progression?

A. Dynamic balance exercises

B. Perturbation training

C. Sport-specific balance training

D. Static balance exercises

The genotype of the individuals is found below.

The disease is X-linked and recessive.  

Males are XY while females are XX. Males only need one recessive allele to become affected. Thus:

Following these rules, the genotypes of individuals in the figure will be as follows:

    5.   \(X^bY\)         6.  \(X^bY\)          7.   \(X^bX^b\)     8.  \(X^BY\)  

    9.   \(X^BX^b\) or \(X^BX^B\)   10.   \(X^bY\)     11.   \(X^bY\)      12.   \(X^bY\)

     13.  \(X^bX^b\)

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An experiment to show that roots hold plants to the soil.

What do you mean by Experiment?

An experiment is an organized procedure that is carried out to test a hypothesis, examine an issue, or explore a subject. It provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated. Experiments vary greatly in goal and scale, but always rely on repeatable procedure and logical analysis of the results.

Materials:

-2 potted plants of the same species

-Potting soil

-Gardening gloves

-Garden trowel

-Tape measure

Procedure:

1. Put on the gardening gloves.

2. Take the two potted plants and measure the length of the roots from both plants using the tape measure.

3. Take the first plant and carefully remove it from its pot.

4. With the garden trowel, carefully loosen the soil around the plant’s roots.

5. Gently pull on the plant to remove it from the soil.

6. Measure the length of the roots that are still in the soil.

7. Repeat steps 3-6 with the second plant.

8. Compare the lengths of the roots from both plants.

Results:

The roots from the first plant should be significantly longer than the roots from the second plant, indicating that the roots are holding the plant firmly in place in the soil.

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Answer:

Only Water, Oxygen, Nitrogen and ammonia

Explanation:

The atmosphere is defined as the outer blanket surrounding the Earth and plays a crucial role in maintaining climate, weather, and temperature.

Thus, the earliest Earth's atmosphere was made up of hydrogen sulfide and carbon dioxide.

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Answer:

Generally, K+ ions ensures re-polarization of  the membrane potential. It always ensures that the neuron returns its resting  state, protecting the  neurons and ensuring episode of rest before the next action potential.

K+ does this by leaving the axon, making the inner layer more negative. This is resting membrane potential. Because there are many K+ channels for leakages out of the neuronal axons.

Therefore, in this scenario, he neuron will return to its resting membrane potential state which between values -50 to -75mV.

Therefore the value of the potential will be -60mV, or within the range of -50 to -60mV. This is because the neuron is is non- excitable.

Explanation:

Blue-green algae are photosynthetic prokaryotes, while fungi are eukaryotes that obtain nutrition through absorption.

Blue-green algae and fungi are both organisms, but they belong to different domains and have distinct characteristics. Blue-green algae, also known as cyanobacteria, are classified under the domain Bacteria, while fungi belong to the domain Eukarya.

Blue-green algae are prokaryotic organisms, lacking a true nucleus and membrane-bound organelles. They obtain energy through photosynthesis and are capable of converting sunlight into chemical energy. They typically inhabit aquatic environments, such as lakes, ponds, and oceans, and some species can fix atmospheric nitrogen.

On the other hand, fungi are eukaryotic organisms with a distinct nucleus and membrane-bound organelles. They obtain nutrition by absorbing organic matter from their surroundings. Fungi play crucial roles in decomposition and nutrient cycling in ecosystems. They can be found in various habitats, including soil, plants, and even as symbiotic partners with other organisms, such as in mycorrhizal associations.

In summary, the primary differences between blue-green algae and fungi lie in their cellular structure, mode of nutrition, and classification. While blue-green algae are photosynthetic prokaryotes, fungi are eukaryotes that obtain nutrition through absorption. Understanding these distinctions helps in appreciating the diversity and ecological significance of these two groups of organisms.

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Answer:

Disrupts

Explanation:

The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.

A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.

The atoms in this process move from a higher-energy state  to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.

Therefore the correct option is d.

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