Why are there more trophic level organisms than higher level predators in a marine ecosystem

Answer:

A non specific answer would be plants

Explanation:

Plants make their own energy unlike us. So we eat them to get our energy and the food web goes on with us eating others.

The correct answer is A. desmosome. Desmosomes are specialized cell junctions that bind cells to other cells and provide mechanical strength to tissues. They are particularly important in tissues that experience mechanical stress, such as skin and heart muscle. Desmosomes are composed of transmembrane proteins that link cells together and are connected to intermediate filaments made of keratin. This arrangement allows the desmosome to resist mechanical forces and maintain tissue integrity. Tight junctions and adherens junctions are also cell junctions that bind cells together, but they are not linked to keratin intermediate filaments. Hemidesmosomes, on the other hand, bind cells to the extracellular matrix and are not involved in cell-to-cell adhesion.

A. Desmosome. Desmosomes are specialized cell junctions that bind one cell to another cell and are linked to keratin intermediate filaments. These junctions play a crucial role in maintaining the structural integrity and strength of tissues, as they provide resistance to mechanical stress. In comparison, tight junctions (B) seal adjacent cells together, creating a barrier to prevent the passage of molecules, whereas adherens junctions (C) provide adhesion between cells through actin filaments. Lastly, hemidesmosomes (D) connect cells to the extracellular matrix rather than to other cells.

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Oleic acid molecules are cubic in shape where a side of the cube is the height of the monolayer, the area of oleic acid molecule is 6h².

The total amount of space occupied by a place surface is the area of a specific shape.

Area often refers to a solid object's shape or two dimensions.

A three-dimensional object known as a cube has six faces with equal surface areas.

A cube's total area is calculated by summing the findings of the areas of each of its six faces.

A cube's total surface area equals 6 * \(a^{2}\).

Where an is any one of the six faces' region.

Oleic acid molecules have a cubic form, with the height of the monolayer being one of its sides.

Let h represent the height of the oleic acid.

By dividing the square of the molecule's height by six, the area of an oleic molecule can be calculated.

Molecule size of oleic acid is 6 * \(h^{2}\).

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Answer:

Mouth, stomach, liver, pancreas and small intestine.

Explanation:

If we eat these foods which have carbohydrates, its digestion starts from the mouth because the saliva present in the mouth mixes with the food and start its digestion. When the food reaches to the stomach, the foods are broken down into micromolecules with the help of enzymes secreted by liver and pancreas. After that the food goes to the small intestine where absorption of nutrients and water also occurs.

the answer would be C. None of the other answers choices have anything to do with photosynthesis

Students may investigate the features Mendel tested and then cross two pea plants to observe what offspring they create in this area of the online lab.

Mendel's experiment:

"Plant five pea plants and see what they look like," Mendel advises pupils. The animated Mendel plants and waters five pea plants when students click the "Plant" button. Each pea plant shoots quite fast. The learner may view the pea pod's color, shape, and form, as well as the color and form of the mature seed, by moving the pointer over the plants.

Although the plants are selected at random each time the application is run, all of the numerous varieties of pea plants may be observed in these growing peas. Mendel quizzes the pupils on how many distinctive characteristics they notice in the plants after they have grown five plants

He shows there are seven distinct qualities :

They can cross any plant with itself or with another plant using the five plants they raised. The way that qualities are passed down to future generations may start to show certain patterns to students. They might know, for instance, that a plant with white flowers crossed with itself or another plant with white flowers will only produce plants with white flowers, whereas a plant with purple flowers crossed with itself or another plant with purple flowers will occasionally produce plants with white flowers. You could discover that by encouraging students to focus on specific characteristics during their experiments, they start to see these patterns on their own.

Hence, all about Mendel's experiment

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Abnormal conditions such as atherosclerosis and patent ductus arteriosus cause a large increase in the C) pulse pressure.


1. Atherosclerosis is a condition where the arteries become narrowed and hardened due to a buildup of plaque, leading to reduced blood flow.
2. Patent ductus arteriosus is a congenital heart defect where the ductus arteriosus, a blood vessel connecting the pulmonary artery to the aorta, fails to close after birth, leading to abnormal blood flow between these two arteries.
3. Both conditions affect the normal blood flow in the cardiovascular system, which in turn alters the arterial pressure.
4. Pulse pressure is the difference between systolic pressure (the pressure when the heart contracts) and diastolic pressure (the pressure when the heart is at rest). Both atherosclerosis and patent ductus arteriosus can increase the pulse pressure due to changes in blood flow and arterial stiffness.
5. The other options (A, B, D, and E) are not directly affected by these conditions to the same extent as pulse pressure.

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The best cross to find out if the purple-flowered peas are homozygous is a monohybrid cross. In a monohybrid cross, the scientist would cross the purple-flowered pea plant with another pea plant that has a different flower color (such as white), and observe the phenotype (observable characteristics) of the offspring.

If the purple-flowered pea plant is homozygous for the purple flower color (PP), all of the offspring will also have purple flowers. However, if the purple-flowered pea plant is heterozygous (Pp) for the purple flower color, some of the offspring will have white flowers. This is because the offspring will inherit one allele (version) of the gene for flower color from each parent. If the purple-flowered parent is homozygous, it will pass on a purple allele in each case; if it is heterozygous, it will pass on either a purple or white allele.

By observing the flower color of the offspring, the scientist can determine whether the parent plant is homozygous or heterozygous for the purple flower color allele. If all the offspring have purple flowers, the parent plant is homozygous. If some of the offspring have white flowers, the parent plant is heterozygous.

Answer:

As we know, purple flowered peas plants are a dominate traits.

The purple flowered pea plants that the scientist has might be heterozygous(Pp) or homozygous (PP).

The best cross to find out what alleles those purple flowered peas are carrying, is to cross it with heterozygous purple flowered pea plant...

we have:

Heterozygous purple-flowered peas crossed with unknown alleles for purple-flowered peas.

Now, we have two options

Results will be :

3=purple-flowered peas

1= white- flowered peas

(75% purple and 25% white)

Results will be :

4 = purple-flowered peas

(100% purple)

Now,

If all the results were purple-flowered peas then the plants she has are homozygous

And if some of the results were white-flowered peas then the plants she has are heterozygous

Usually fresh water lakes have a pH range between 6.5 to 8.5, this is appropiate for many organisms life and development.

Answer:

A. Many fossils of Shark teeth have recently been found that are all the same size and color compared to modern sharks.

Explanation:

Evolution is the change in characteristics of a species over time and it relies on the process of natural selection.

The theory of evolution states that all species are related and gradually change over time.

Since all options except A show a change in the characteristics of shark teeth in the fossils found in relation to modern sharks, option A is the answer. Since, there is no change in characteristics between the Shark teeth in the fossils and that of modern sharks.

So, option A is the answer.

Answer:

I think it's D. Nitrogen fixation

Normally, only females have the tortoiseshell phenotype because a male inherits only one allele of the X-linked gene for hair color, hence option A is correct.

The males perish during embryonic development, only female cats often exhibit the tortoiseshell phenotype. The X-linked gene governing hair color can only be inherited by males as one allele.

This is so because male cats only have one X and one Y chromosome, whereas two X chromosomes are required to generate the distinctive tortoiseshell coloration of black, orange, and yellow/gold.

Therefore, option A is correct.

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Answer:

iris

Explanation:

Answer:

The offspring of this cross, the F1 generation, can have two outcomes. Either the seeds will be all yellow, or they will be half yellow and half green.

Explanation:

The reproductive organs in humans which produce the gametes are the ovaries in females and the testicles in males.

The reproductive organs in humans are responsible to produce gametes such as spermatic germinal cells in the testicles of males or ovule germinal gametic cells in the ovaries of females, these gametes are produced by the process of meiosis.

Therefore, with this data, we can see that the reproductive organs in humans are the testicles in males and the ovaries in females capable of producing gametes by meiosis.

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Medial temporal lobe damage results in difficulty in understanding spoken words (Receptive Aphasia) Disturbance with selective attention to what we see and hear. Difficulty with identification and categorization of objects. Difficulty learning and retaining new information.

According to Kolb and Wishaw (1990), there are eight main signs of temporal lobe damage:

1) Disturbances in auditory sensation and perception;

2) Disturbances in selective attention of auditory and visual input;

3) Disorders of visual perception;

4) Impairments in verbal material organization and categorization;

5) Impairments in language comprehension;

6) Impairments in long-term memory;

7) Alterations in personality and affective behavior; and

8) Alterations in sexual behavior With the injury to the temporal lobes, selective attention to visual or auditory stimuli is typical (Milner, 1968).

Lesions on the left side lead to a decline in verbal and visual memory, including speech perception. Lesions on the right side cause a reduction in several musical skills including tonal sequence identification. Lesions on the right side may make it harder to recognize visual content (e.g. recall of faces). The main mechanism for organizing sensory information is carried out by the temporal lobes (Read, 1981). People who suffer from temporal lobe lesions have trouble categorizing words or images. Damage to the temporal lobe can impact language. Left temporal lesions make it difficult to recognize words. A right temporal injury may result in a loss of speech inhibition. Memory abilities are closely linked to the temporal lobes. Memory for spoken information is hampered by left temporal lesions. Lesions on the right side cause people to retain non-verbal information like music and artwork.

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Answer:

Parenchyma cells

Explanation:

Parenchyma cells stay alive, typically helping produce and store nutrients. They constitute the majority of most plants.

{ hope this helps :> }

Answer:

density- independent factors

Explanation:

Answer:

Roots. Roots are simple tissues that are derived from the stem of the plant.

Xylem. The xylem is tissue that transports water throughout the plant.

Phloem. The phloem is the plant's food transportation system.

:)

Three major characteristics of vascular plants are, roots are simple tissues that are derived from the stem of the plant, Xylem is the tissue that transports water throughout the plant, and phloem is the plant's food transportation system.

The vascular plants are also called tracheophytes. These are all land plants that have special lignified tissues that conduct water and minerals.

The major characteristics of vascular plants are specialized tissues for consuming minerals and water.

Thus, the stem of the plant derived roots, are basic tissues that carry nutrients throughout the plant. Xylem is the tissue that carries water throughout the plant. Phloem is the tissue that carries water throughout the plant.

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The gall bladder is a small, pear-shaped structure located near the liver. The heart is a muscular organ that pumps blood throughout the body. The stomach is a J-shaped organ located between the esophagus and small intestine.

The large intestine is a long, tube-like structure that absorbs water and electrolytes from digested food. Fat bodies are specialized structures found in some animals that store energy as fat. The spleen is a small, fist-shaped organ located near the stomach. The 3-lobed liver is the largest internal organ in the body and plays a vital role in digestion and metabolism. The lung is a spongy organ located in the chest that is responsible for exchanging oxygen and carbon dioxide.

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Phytochemicals does not represent one of the six classes of nutrients.

Phytochemicals are defined as bioactive nutritional plant molecules that are present in fruits, vegetables, grains, and other plant foods, and which reduce the risk of significant chronic diseases. These benefits can transcend merely nutritional benefits.

There are many different nonnutritive chemical substances called phytochemicals that are present in plant foods and may have health implications. Several well-known phytochemicals include the flavonoids, phenolic acids, isoflavones, curcumin, isothiocyanates, and carotenoids.

The potentially beneficial substances present in plant diets are referred to as phytochemicals or phytonutrients. Chronic illnesses like cancer may be avoided with their aid. Fruits, vegetables, beans, grains, nuts, and seeds all contain them. The phytochemicals found in many plants vary in type and concentration, though.

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If the root tips of a plant were cut and the plant was replanted, it would likely experience some stress as it adjusts to its new environment.

The root tips are important for the plant's growth and nutrient uptake, so cutting them may affect the plant's ability to access water and nutrients from the soil. In addition, replanting can also be stressful for a plant, as it requires the plant to establish new roots in the soil and adapt to any differences in light, temperature, and humidity in its new location.

It is possible that the plant may wilt or appear to be struggling initially, but with proper care and attention, it may eventually recover and continue to grow. To help the plant recover, it is important to provide it with adequate water, light, and nutrients, and to be mindful of any environmental factors that may be affecting its growth.

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Answer: The plant will die within few days of replanting it. This is because since the root tips are cut, the roots won't grow because of absence of meristematic tissue. And if the roots will not grow, proper absorption of water an minerals will not occur.

Explanation: All plants need roots to survive to grow nutrients and bring water to the inside. And if the roots are not there they can cause not proper absorption.

Answer:

Bacteria converts ammonia into nitrites and nitrates that plants can use.

Nitrification is a microbial process by which reduced nitrogen compounds (primarily ammonia) are sequentially oxidized to nitrite and nitrate. Ammonia is present in drinking water through either naturally-occurring processes or through ammonia addition during secondary disinfection to form chloramines.

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Answer:

meninges

Explanation:

Answer:

C, F, D

Explanation:

: wind duration wind speed wind direction

The protein synthesis process involves the ribosome, messenger RNA (mRNA), signal recognition particle (SRP), polypeptide, and rough endoplasmic reticulum (RER).

How do ribosome, mRNA, SRP, Polypeptide, and rough endoplasmic reticulum relate with each other?

The genetic information is transferred from the DNA in the nucleus to the ribosome in the cytoplasm by the mRNA, which acts as a template for the production of proteins.

In a process known as translation, the ribosome reads the mRNA and uses it as a template to create a polypeptide chain.

Getting newly synthesized polypeptide chains to the RER for further processing relies heavily on the SRP.

The translation process is halted until the ribosome can be transported to the RER because it binds to a particular signal sequence on the polypeptide chain.

The RER has a rough appearance because it is a membrane-bound organelle that is dotted with ribosomes.

Newly synthesized proteins, particularly those destined for secretion or membrane insertion, are processed and modified by it.

The ribosome creates the polypeptide chain by threading it through a channel in the RER membrane, where enzymes and chaperones further modify it.

In a nutshell, the ribosome reads the messenger RNA and creates a polypeptide chain that the SRP recognizes and binds.

The ribosome is directed to the RER by the SRP, where the polypeptide chain undergoes additional modification and processing before being transported to its final destination.

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To determine the number of hours that have passed since the original two bacteria were placed in the dish, we can use the fact that the number of bacteria quadruples every hour.

Starting with two bacteria, we can observe the progression:

Hour 1: 2 bacteria

Hour 2: 2 x 4 = 8 bacteria

Hour 3: 8 x 4 = 32 bacteria

Hour 4: 32 x 4 = 128 bacteria

Hour 5: 128 x 4 = 512 bacteria

Hour 6: 512 x 4 = 2048 bacteria

Hour 7: 2048 x 4 = 8192 bacteria

Hour 8: 8192 x 4 = 32768 bacteria

Hour 9: 32768 x 4 = 131072 bacteria

Therefore, it took 9 hours for the number of bacteria to reach 131,072.

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