the trophic pyramid is the reason
what the trophic pyramid is: Trophic pyramid, also called an energy pyramid, showing the progression of food energy. The pyramid base contains producers, organisms that make their own food from inorganic substances. All other organisms in the pyramid are consumers
- predators get little energy from the prey they eat so they must consume multiple prey
It is more difficult for top carnivores to obtain sufficient energy resources than it is for animals lower on the food chain because the higher trophic levels have less energy than the lower ones.
The trophic levels of food chainThe food chain is defined as a feeding pathway that consists of similar organisms that are placed in the same trophic levels.
Trophic levels in a food chain are those levels that is occupied by a group of organisms that have a similar feeding mode.
The plants which are the producers are at the lower trophic level while the carnivores are at the higher trophic levels.
The carnivores eats meat from other animals but not plant or plant products which obtain direct energy from sunlight.
Therefore, It is more difficult for top carnivores to obtain sufficient energy resources than it is for animals lower on the food chain because the higher trophic levels have less energy than the lower ones.
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Which will form an ionic bond?
A. Two oxygen atoms
B. Two oppositely-charged ions
Ο Ο Ο
C. Any two neutral atoms
D. Two negative ions
Option B- Two Oppositely-Charged Ions
Hope This Helps You ❤️Which of these describes a nebula
Answer:
A nebula is a giant cloud of dust and gas in space. Some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova. Other nebulae are regions where new stars are beginning to form. For this reason, some nebulae are called "star nurseries."
Explanation:
HELP ASAP PLEASE
A natural resource is best defined as any naturally occurring material that is which of the following?
A. Used by people
B. Mined from Earth
C. Unlimited in quantity
D. Left untouched in nature
Answer:
The correct answer is B
Explanation:
A natural resource will always come from nature and it can be used for economic gain.
Yes, they can be used by people, but so can other resources, so the answer is not A.
Not all natural resources are unlimited, such as coal, are unlimited in quantity, so the answer is not C
Lastly, we do not leave natural resources untouched; we use them, so the answer is not D.
Please give me brainliest if I helped!
Picture A
Picture B
Name the process occurring in Picture A.
Answer:
Explanation they r the same
:
≅⇒Ф
an example of evolution would be
The owners of a local bakery ask for your help in improving a special yeast strain they use to make bread. They would like you to help them design experiments using RNA interference to turn off genes, to allow them to test their hypothesis that certain genes are important for the good flavors found in their bread. Of the components in the following list, which is the most important to check for in this yeast strain if you would like this project to succeed?
a. the presence of foreign double-stranded RNA
b. the presence of genes in the genome that code for RISC proteins
c. the presence of miRNA genes in the genome
d. the presence of single-stranded siRNAs within the cell
Answer:
b. the presence of genes in the genome that code for RISC proteins
Explanation:
The RNA interference (RNAi) mechanism is a naturally occurring pathway by which eukaryotic cells can silence specific genes both at the transcriptional (eg., by triggering DNA methylation on specific loci) and posttranscriptional (e.g., by triggering mRNA degradation) levels. This mechanism (RNAi) is widely used in molecular biology laboratories in order to silence genes and thus understand their functions. During the RNAi pathway, double-stranded RNAs (dsRNAs) are cleaved into small double-stranded RNA (dsRNA) molecules known as small interfering RNAs (siRNAs) or microRNAs (miRNAs) by an enzyme referred to as "Dicer". Subsequently, these small non-coding RNAs bind to an enzymatic complex known as RNA-induced silencing complex (RISC) that contains a ribonuclease enzyme, i.e., an enzyme that degrades RNA. Finally, the small non-coding RNA (either siRNAs or miRNAs) that are complementary to the RNA target directs the RISC complex to bind and cleave specific mRNAs, thereby silencing gene expression (in this case, by the inhibition of protein translation).
indicate FOUR
reasons why you think having it may enhance responsible living in your environment
Answer:
Can you please elaborate on ur question??
: d
in some flowers, red and white color is codominant. Flowers and be red ( RR), white (rr) or pink (Rr) if two pink flowers are crossed! what percentage of the offspring will also be pink ?
Answer:
50%
Explanation:
If you do a punnet square you get 1 RR: 2 Rr: 1rr
4) A molecule has been isolated from a cell. The molecule is found to be in a ring shape made up of carbon, hydrogen, and oxygen atoms in a 1:2:1 ratio. Choose all the statements that apply to this molecule. A) The molecule is an enzyme. B) The molecule is likely a sugar. C) The molecule is likely a carbohydrate. D) The molecule is produced during photosynthesis. E) The molecule comprises the largest component of the cell membrane.
Most of the constellation were discovered by_____
please help me
Answer:
Ptolemy: 48 constellations described in his great work, The Almagest, in the 2nd century AD.
...
The 88 Constellations recognized by the International Astronomical Union.
PLEASE HELP IF YOU KNOW ABT PUNNETT SQUARES!!! Mendel conducted a cross between purebred organisms. Use a punnett square to show a cross between a purebred pea plant with yellow seeds and a purebred pea plant with green seeds. What would be all of the possible genotypes of all the offspring?
A. 100% yy
B. 100% Yy
C. 50% Yy and 50% yy
D. 75% Yy and 25% yy
Answer:
B
Explanation:
I assume the plants with the yellow seeds are dominate (YY) , while the ones with green seeds are recessive (yy) (Since it would need to be recessive to be a different color than the dominate). The genes will always be heterozygous then, since it combines the genes from both parents.
difference between antigens and antibodies?
Answer:
Antigens are molecules capable of stimulating an immune response. Each antigen has distinct surface features, or epitopes, resulting in specific responses. Antibodies (immunoglobins) are Y-shaped proteins produced by B cells of the immune system in response to exposure to antigens.
Explanation:
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hopes this helps
Would you mind answering this one
Which fact supports the conclusion that it is important for handlers to perform regular visual inspections of livestock?
O Some diseases that affect animals can be passed on to humans.
O Viral diseases are often spread through the air and on surfaces.
O Extemal parasites can cause serious infections if left untreated.
O Bacterial infections are often caused by unsanitary environments.
please help quick
Answer:
O Extemal parasites can cause serious infections if left untreated.
3 reasons why nuclear fusion energy could save the world from climate disaster
Answer:
-Its hydrogen-like fuel is available in virtually limitless quantities
-it produces no greenhouse gases
- no long-term radioactive waste and carries no risk of meltdown
Studies show that exposure to toxic environments as a child __________.
A)
may have lasting health effects
B)
contributes to deliquent behavior risks
C)
may not show any effect until adulthood
D)
increases in the risk of certain childhood disorders
E)
all of the above
Answer:
E) All of the above
Hope this helps!
--Applepi101
Answer:
All of the above
Explanation:
All of these are major effects for children, if they get exposed to toxic enviornment these are all possible effects.
A number of antiviral drugs act by preventing viral DNA synthesis. These drugs are typically chemically similar to nucleotides with a modification. For example, the drug may contain all relevant components of a nucleotide, including a proper purine or pyrimidine base, but lack the 3' OH group. How would this modification allow this drug to prevent viral DNA synthesis
This modification allows the drug to prevent viral DNA synthesis by different mechanisms as an enzyme DNA polymerase follows.
What do you mean by DNA synthesis?DNA synthesis may be defined as the biological process by which a deoxyribonucleic acid (DNA) molecule is created.
The enzyme DNA polymerase adds some of the nucleotide bases to the strand that contains 3'-OH at the end. But when the end part of the strand lacks the 3' OH group, it inhibits the process of DNA transcription.
Therefore, this modification allows the drug to prevent viral DNA synthesis by different mechanisms as an enzyme DNA polymerase follows.
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The simplest nervous systems are called....
The simplest nervous systems are called [tex]\sf\purple{nerve \:nets}[/tex].
More:-This type of nervous system is found in [tex]\sf\red{hydras}[/tex] and [tex]\sf\blue{jellyfish}[/tex] (cnidarians).Nerve nets do not have a distinct central or peripheral regions, and lack anything that resembles a brain.[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
1 point
What is the purpose of respiration based on the image below?
Glucose
Oxygen
un
Carbon
Dioxide
Energy
Water
O To make glucose
O To make water and carbon dioxide
O To make energy
Answer:
I think the answer is To make energy
Explanation:
To release energy and carbon dioxide from the food with the help of the oxygen.
In the United States, there has been an increase in the number of people infected by mosquito spread diseases that were previously found only in countries
south of the United States. Scientists want to investigate the cause of the increase in mosquito-bome diseases. Scientists have predicted that the mosquitos
carrying disease have moved further north as global temperatures have increased. Which information would be most useful to their investigation?
O A. Meteorologists' annual temperatures of all the major cities in the US for the last ten years.
O B. Population data from the CDC that ranges over several years for mosquitoes that spread disease.
o
C. A report from the Center for Disease Control (CDC) of mosquito spread diseases and their symptoms.
OD. A collection of test results for different vaccines used to prevent mosquito carriab diseases.
Answer:
b
Explanation:
Why is she keeping the dead animals?
Answer: i dont know
Explanation: maybe there is something very special about it
Which of the following likely has the largest particle size?
A.
parent material
B.
subsoil
C.
topsoil
D.
humus
Answer: A.
Explanation:
Parent material
Big cats like tigers and other carnivores are often the top predators in an ecosystem. To which trophic level do they most likely belong?
primary producers
decomposers
tertiary consumers
primary consumers
Big cats like tigers and other carnivores are often the to predators in an ecosystem. The trophic level do they most likely belong to is tertiary consumers. Thus, the correct option will be C.
What are Tertiary consumers?Tertiary consumers can be referred to as the carnivore at the topmost level in a food chain which feeds on other carnivores in nature, which is an animal that feeds only on secondary consumers.
Tertiary consumers are those organisms that eats the secondary consumers (large predators) in nature. For example, owl species that eat snakes.
Big cats like tigers and other carnivores are often the to predators in an ecosystem. The trophic level do they most likely belong to is tertiary consumers.
Therefore, the correct option will be C.
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What is meant by "nutrient limitation
Answer:
meaningful additions of an essential element
Explanation:
Nutrient limitation occurs when meaningful additions of an essential element in additions of an essential element in biologically available forms cause an increase in the rate of a biological process (such as primary productivity) and/or in the size of an important ecosystem compartment (such as bi ) biomass).
1.If rTMS is deemed a success, this treatment could be applied to other disorders by doing what?
2.Your aunt has Parkinson's. Which of the following treatments is most likely to help her?
Answer: B
Explanation:
1) If rTMS is deemed a success, it could be applied to other disorders by;
Option C; Increasing activity in the brain region involved.
2) The treatment most likely to help your aunt who has parkinson's is;
Option B; DBS
1) rTMS is an acronym that means repetitive transcranial magnetic stimulation. The way it is used is that a coil is held above a part of the brain and recurring high magnetic pulses are targeted at specific brain structures.
This means that the activity of the region of the brain involved is stimulated.
Thus, when applied to other disorders, it could also be a success by increasing the activity in the brain region that is involved.
2) Parkinson's disease is a neurological movement disorder. Now the best way to treat it is to transmit electrical impulses to a specific area of the brain that is responsible for the movement/motor symptoms that Parkinson's disease caused. This is done because electrical impulses interrupt the abnormal activity that occurs in the brain's circuitry which causes the symptoms of the Parkinson's' disease.
The treatment that goes through this process is called Deep Brain Simulation (DBS)
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7 examples of RNA and DNA
1. A stream dries up. Did the water in the stream:
a. gain energy
b. loose eergy
c. keep the same amount of energy
d. never had energy
Explain your answer.''
I’m not sure if the answer
1. This question may be completed independently or as a group exercise. Biological anthropologists disagree about the best way to classify the robust australopithecines. Describe the two approaches to classifying these species. Which classification do you support
Answer:
Some researchers classify Australopithecines into gracile australopithecines and robust australopithecines, while others argue that differences are enough strong to classify robust australopithecines in their own genus called 'Paranthropus'. In my opinion, it seems reasonable to obtain more fossil data in order to support this division
Explanation:
The term Australopithecines comes from the genus Australopithecus, which are the closest known relatives of our genus Homo, and arose around three (3) million years ago. Australopithecines can be classified into two major groups called gracile australopithecines and robust australopithecines. However, robust australopithecines have also been classified in their own genus, Paranthropus, in order to distinguish them from the gracile australopithecines. The major differences between gracile and robust species are associated with facial and cranial features. Paranthropus species had a large sagittal crest, enormous cheek teeth, robust jaws, and strong jaw muscles (suggesting they were herbivores that ate tough food). However, these main features may not be conclusive evidence that supports the separation of Paranthropus in its own clade, thereby in my opinion it should be reasonable to wait until more fossils are found in order to correctly classify Paranthropus species as a different group.
Please transcribe the following strand of DNA: TACATTCGAGGCATT*
Answer:
Explanation:
DNA strand:
ATGTAAGCTCCGTAA
I hope this makes sense on how to transcribe a DNA strand. At first, it may seem hard on how to do this but if you practice transcribing a strand you will fully understand it. To remember what goes with what it is that adenine is pair with thymine while guanine is pair with cytosine. I hope this makes sense and I wish you the best in your science class.
What is the hallmark of a chemical change?