Why are there more trophic level organisms than higher level predators in a marine ecosystem
Answers
Answer:
The higher-level organisms need a ton of nutrients to be sustained, so not many of them can survive at one time. Lower trophic level organisms do not need so much, so they can reproduce much more efficiently.
Related Questions
11. what is the effect on damage to the medial temporal lobe? what is the difference between left and right temporal lobes?
Answers
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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HELP ME PLEASE!! THIS IS A TEST!!! PLEASE!!!
Stuart is listing the changes to matter and energy that occur during the process of photosynthesis which of these examples should he include in his list?
A.) changes in chemical energy converts carbohydrates into smaller molecules
B.) changes in light energy convert chemical energy stored in carbohydrates
C.) changes that convert chemical energy into heat and light
D.) changes in nuclear energy converts hydrogen and oxygen into carbon
PLEASE AND THANK YOU!!!! HELP MEEE!!!
Answers
the answer would be C. None of the other answers choices have anything to do with photosynthesis
The process in which nitrogen is taken out of the atmosphere and assimilated
into organic compounds in the soil is called? *
A. nitrification
B. denitrification
C. nitrogen cycling
D. nitrogen fixation
Answers
Answer:
I think it's D. Nitrogen fixation
Assuming that oleic acid molecules are cubic in shape where a side of the cube is the height of the monolayer, discuss how you would calculate the area of a molecule.
Answers
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.
What is a shape's area?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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When you eat an apple, you are eating a type of tissue that stores nutrients in plants. Which type of tissue stores nutrients in plants? Please answer quick!
Answers
Answer:
Parenchyma cells
Explanation:
Parenchyma cells stay alive, typically helping produce and store nutrients. They constitute the majority of most plants.
{ hope this helps :> }
What is the process of nitrification?
Bacteria converts ammonia into nitrites and nitrates that plants can use.
Fungi convert nitrogen in dead plants into ammonium, which converts proteins into ammonia.
Nitrogen is converted into a useable form through lightning fixation.
Plant enzymes reduce nitrogen compounds into amino acids.
Answers
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.
Thank You
Which factors play a role in creating ocean waves?
Choose all answers that are correct.
A) Wind elevation
B) Wind change
C) Wind duration
D) Wind direction
E) Wind fetch
F) Wind speed
Answers
Answer:
C, F, D
Explanation:
: wind duration wind speed wind direction
In Fast Plants Green leaves are dominant, yellow are recessive:
Cross two heterozygous green leaf fast plants, and match the phenotype and genotype with the probable outcome.
This is just like Mendel's experiment crossing two Hybrid Tall pea plants and seeing the recessive short gene show up
Answers
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 :
Pea form (round or wrinkled)Pea green (green or yellow)Shaped like a pod (constricted or inflated)Pod hue (green or yellow)floral hue (purple or white)plant height (tall or dwarf)Arrangement of flowers (axial or terminal)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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What will happen to producers if primary consumers are removed from a food chain?
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2. The root tips of a plant were cut, and the plant was replanted. What would happen to the plant and why?
Answers
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.
What would be the expected outcome of the F(1) generation from a cross between a
heterozygous white mouse w/ a black mouse?
Answers
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:
A botanist crosses a pea plant that produces smooth seeds with a pea plant that produces wrinkled seeds. The resulting plants all produce smooth seeds. What can be determined from the results of the experiment?
A. Smooth shape and wrinkled shape are both recessive traits.
B. Smooth shape and wrinkled shape are both dominant traits.
C. Smooth shape is a dominant trait, and wrinkled shape is a recessive trait.
D. Smooth shape is a recessive trait, and wrinkled shape is a dominant trait.
Answers
please help .this is very important
In the middle of the night, you are awakened by hunger pains. You proceed to get up and go to the kitchen to have a couple of cookies and a glass of milk. Satisfied you go back to bed content. Explain in detail what tissues, organs, and organ systems are involved in completing that task. Be sure to include how the systems interact. The more detail the better! Start with getting up to get the food and include details on the steps in how the food gets digested.
Explain in detail
Answers
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.
how do a ribosome, a mrna, a SRP, a polypeptide, and a rough endoplasmic reticulum relate?
Answers
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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In your opinion, which individual species or small group (i.e. “other seals”) is the most crucial to the overall survivorship of the entire food web?
Answers
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.
What is the normal/average pH level of lake in a healthy ecosystem?
Answers
Usually fresh water lakes have a pH range between 6.5 to 8.5, this is appropiate for many organisms life and development.
What are the reproductive organs in humans which produce the gametes?
Answers
The reproductive organs in humans which produce the gametes are the ovaries in females and the testicles in males.
What are the reproductive organs in humans?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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A scientist has some purple-flowered peas plants. She wants to find out if the pea plants are homozygous for the purple flower color. What cross will be best to find out if the purple flowered peas are homozygous?
Answers
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.
Pp X P_Now, we have two options
a) Pp X Pp
Results will be :
PP, 2Pp, pp3=purple-flowered peas
1= white- flowered peas
(75% purple and 25% white)
b) Pp X PPResults will be :
2PP, 2Pp
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
In cats, black fur color is caused by an X-linked allele, while the other allele at this locus causes orange color. The heterozygous allele is tortoiseshell. Normally, only females have the tortoiseshell phenotype because
A. a male inherits only one allele of the X-linked gene for hair color
B. multiple crossovers on the Y chromosome prevent orange pigment production
C. only males can have Barr bodies
D. genetic imprinting prevents males from inheriting tortoiseshell traits from a mother
Answers
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.
Why do females have the tortoiseshell phenotype?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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hich of the following junctions binds a cell to another cell and is linked to keratin intermediate filaments? Choose one: A. desmosome B. tight junction C. adherens junction D. hemidesmosome
Answers
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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6 Which of the following statements about shark teeth fossil evidence is not consistent with the scientific theory of evolution? (7 Points) A. Many fossils of Shark teeth have recently been found that are all the same size and color compared to modern sharks. B. Many fossils of Shał teeth have been found that show different sizes and serrations (saw-like edges). These fossil teeth have distinct differences and similarities to modern sharks. C. Many fossils of Shark scales have been found that have features of enlarged scales that resemble a brush. Our modern sharks do not have or need this type of scale to survive. D. A new shark fossil has been found that has characteristics in the size of the teeth and the serrations (saw-like edges) that are in between the older fossils found and the modern shark.
Answers
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.
Name and describe 3 major characteristics of vascular plants?
Answers
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.
What is the vascular plant?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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which of the following does not represent one of the six classes of nutrients? a. protein b. carbohydrates c. phytochemicals d. lipids e. water
Answers
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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An ecosystem only receives 4 inches of rain a year.what kind of limiting factors does the drought in Serengeti plains affect?
Answers
Answer:
density- independent factors
Explanation:
identify structure a gall bladder heart stomach large intestine fat bodies spleen 3-lobed liver lung
Answers
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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At what degree both North and South does air begin to sink back to the surface?
A. 30°
B. 45°
C. 50°
D. 60°
Answers
Abnormal conditions such as atherosclerosis and patent ductus arteriosus cause an large increase in the A) blood colloid osmotic pressure.
B) central venous pressure.
C) pulse pressure.
D) venular hydrostatic pressure.
E) capillary hyrdostatic pressure.
Answers
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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Muscle fibers in the _____ enable it to increase or decrease the diameter of the pupil to allow more or less light to enter the eye.
Answers
Answer:
iris
Explanation:
The ______ are a series of fibrous connective tissue membranes covering the central nervous system.
Answers
Answer:
meninges
Explanation:
1. Bacteria. Two bacteria were placed in a dish. The number of bacteria quadruples every hour. There are now 131,072 bacteria in the dish. How many hours have passed since the original two bacteria we
Answers
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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