Answer:
The leafhoppers eat plant tissues and, at the same time, they are eaten by spiders that are the food of large lizards. Finally, these lizards are the food of birds that are eaten by snakes.
Explanation:
The food chain starts with primary producers such as plants and algae (i.e., level 1), then goes through herbivorous species including insects and fish (level 2) and finally ends with carnivores such as rodents, snakes and hedgehogs (levels 3, 4 and sometimes 5, which depends on presence of larger predators). Thus, the trophic levels are represented by the number of steps of the food chain. In an ecosystem, the organisms can also be classified according to the mode of obtaining the food in producers (autotrophs), consumers (heterotrophs) and reducers (detritivores).
Phytoplankton, shown on the left in the image below, are microscopic organisms that can be found in freshwater and salt water environments. They perform photosynthesis to get energy and act as an important food source for larger organisms, such as the whale that is shown on the right. Phytoplankton A large whale. Which characteristic describes the whale but not its food source, the phytoplankton? The whale is heterotrophic. The whale has cell walls. The whale is unicellular. The whale is a prokaryote.
Answer:
The whale is heterotrophic.
Explanation:
Energy is needed by organisms to perform their life functions. Organisms, in nature, feed on one another for energy source. Some organisms are, however, capable of synthesizing their own food or energy source via a process called photosynthesis. This is the case of the phytoplankton in the question. These organisms are, therefore, called AUTOTROPHIC ORGANISMS or PRODUCERS.
On the other hand, some organisms are incapable of this self-production of energy source. Hence, they rely on other organisms for it. These category of organisms are called HETEROTROPHIC organisms, which is the category the large whale fall into due to its dependence on phytoplankton for energy source.
For each of the following classes of proteins, give two examples of specific proteins.
a. Enzymes
b. Structural proteins
c. Motility proteins
d. Regulatory proteins
e. Transport proteins
f. Receptor proteins
g. Defensive proteins
h. Storage proteins
Answer:
Answered below
Explanation:
A) Amylase, a protein enzyme that catalyses the hydrolysis of carbohydrates and trypsin, a protein enzyme that catalyses the digestion of protein.
B) Keratin, a protein which is found in hair, and Collagen, a protein which is found in connective tissues such as tendons and ligaments.
C) Myosin and tropomyosin
D) cyclin-dependent kinase and p53
E) GLUT1 and Auxilin
F) Receptor tyrosine kinase and Integrin
G) Immunoglobulins (antibodies) and fibrinogen
H) Ferritin and Casein
Desribe the structure of amino acids including what makes amino acids different from each other
Answer:
1) Amino acid contains a central carbon atom attached to: an anime group, carboxyl group, hydrogen atom and a side chain
2) The side chain of each amino acid differentiates from one another
Please find the description below
Explanation:
Amino acids are monomeric chemical compounds that forms the make up of a protein. Amino acids , like every other chemical compound, have a structure. Amino acids have two functional groups i.e. amine group (-NH2) and carboxylic acid group (-COOH).
All amino acids, which are naturally 20 in number have basic parts in common namely: 1) a central carbon atom, also called the alpha carbon 2) a hydrogen atom 3) an amine group i.e. (-NH2) 4) a carboxyll group i.e. (-COOH)
These are the basic parts of all amino acids, however, the difference between the amino acids is found in the series of different atoms called Side chains or R group that attach to the alpha carbon. These R group makes each amino acid specific and different. For example, a side chain containing sulphur (CH3-S-(CH2)2) is the R group of methionine. Each amino acid has a different side chain attached to the basic structure listed above.
Mutations in region B and region D give the same results - when either of these regions is mutated, the operon is expressed under all conditions (called constitutive expression). You hypothesize that region B is the operator region and that Region D is the repressor protein. To test your hypothesis, you create two partial diploid lines by introducing a F' plasmid with a wild-type lac operon: Strain 1: F' A B C D E / A B- C D E Strain 2: F' A B C D E / A B C D- E What experimental results would be predicted by your hypothesis
Answer:
As it is given in the question that region D is the repressor protein and operator region is region B then the The repressor region D form a protein that will bind to the operator region B and leads to inhibition of the transcription. So, the repressor protein will not repressed a mutant operator and the lac gene will express itself constitutively.
Strain 1: F' A B C D E / A B- C D E
In this strain the mutant opertor gene is present so, it will not repressed by F' as it will not be able to bind. Hence, the lac gene expression is constitutive.
Strain 2: F' A B C D E / A B C D- E
In this strain there is two protein produced by the F' plasmid mutated repressor protein, and a non-mutated repressor protein. As we know mutated repressor will not bind to operator gene and still expression will take place but here a extra not mutated non-mutated protein is present and the repressor protein from F' will bind to the operator region B and thus repress the expression of gene in it.
Assume a population of deer has a crude birth rate of 36 per 1,000/yr, a crude death rate of 20 per 1,000/yr, an immigration rate of 15 per 1,000/yr, and an emigration rate of 8 per 1,000/yr. What is the population growth rate
Answer:
0.023%
Explanation:
The Population growth rate is a change in population with time taken into consideration. It can be expressed with the formula
[tex]N/t[/tex] where N is the total change in the population size, and t is time.
When immigration and emigration are factored in, we now have the formula;
[tex](CBR +I) - (CDR + I)/1000[/tex]
[tex]= (36 + 15) - (20 + 8) = 51 - 28= 23\\\\expressing as a percentage of the population gives us,\\\\23/1000=0.023%\\\\[/tex]
Why is oceanic crust subducted under continental crust?
A. Oceanic crust is moving faster than continental crust.
B. Oceanic crust is denser than continental crust.
C. Oceanic crust is less dense than continental crust.
D. Oceanic crust is older than continental crust.
Answer:
B.) Oceanic crust is denser than continental crust.
Explanation:
Oceanic crust is denser, so it is subducted under the continental crust. The less dense magma then rises up through the continental crust, then it's further increasing the size of the continental crust and then maintaining it's lower density than the oceanic crust, which then causes subduction.
I hope this helped. I am sorry if you get this wrong.
Answer:
B.) Oceanic crust is denser than continental crust.
Explanation:
I just did it and got it right :)
When a volcano erupts, particles of rock and ash are released into the atmosphere. After this, water droplets form around the rock and ash particles and fall to Earth as rain. The rainwater helps plants grow. In this scenario, which spheres of Earth interact? biosphere, cryosphere, hemisphere cryosphere, geosphere, biosphere geosphere, hydrosphere, biosphere hydrosphere, cryosphere, geosphere
Answer:
The third option
Explanation:
geosphere- the volcano
Hydrosphere- the rain
Biosphere- the plants
The spheres of the Earth that interacts in this scenario are geosphere, hydrosphere and biosphere.
What are the spheres of the Earth?The Earth is categorized into spheres as follows:
BiosphereGeosphereHydrosphereLithosphereAtmosphereThe biosphere is the part of the Earth and its atmosphere capable of supporting life.The atmosphere are the gases surrounding the EarthHydrosphere is all the liquid waters of the EarthGeosphere is the solid body of the EarthAccording to this question, a volcano erupts, and particles of rock and ash were released into the atmosphere. After this, water droplets form around the rock and ash particles and fall to Earth as rain. The rainwater helps plants grow.
This suggests that spheres of the Earth that interacts in this scenario are geosphere (rock), hydrosphere (water) and biosphere (plants).
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What type of molecule is represented by the model below? A molecule made up of four carbon rings with other atoms bonded to those rings. Fat Carbohydrate Steroid Protein Points earned on this question: 0
Answer:
Steroid
Explanation:
Steroids are molecules that usually have 17 carbon atoms distributed in four rings of carbon bonded together and linked to atoms of other elements, as shown in the aciam figure. Steroids are molecules soluble in fat and are produced synthetically for therapeutic and even aesthetic purposes, however their use must be monitored by a responsible professional.
Answer:
STEROID
Explanation:
Steroids are molecules that usually have 17 carbon atoms distributed in four rings of carbon bonded together and linked to atoms of other elements, as shown in the aciam figure. Steroids are molecules soluble in fat and are produced synthetically for therapeutic and even aesthetic purposes, however their use must be monitored by a responsible professional.
People can breed cats for specific traits such as coat color through the process of _____. a. natural selection b. descent with modification c. selection with modification d. artificial selection
Answer:
D. Artificial Selection.
Explanation:
Normal people can't breed cats by modifying their DNA, so options b and c are eliminated. Breeding cats for specific traits is not natural, so it is not choice a, either. Instead, selective breeding is d. artificial selection.
Hope this helps!
Answer:
D. Artificial Selection.
) Recall what you know about crossing over, independent assortment, and random joining of sex cells during sexual reproduction.
Answer:
Crossing over is the process of interchange of genetic information among non-sister chromatids of homologous chromosome pairs during meiosis (specifically during synapsis in prophase I). During this process, the synaptonemal complex enables the interchange of chromosome fragments between non-sister chromatids through crossing over. Moreover, in sexual reproduction, the zygote diploid cell can be generated by the random joining of fully differentiated haploid gametic cells (male and female gametes). The combination of random joining with the phenomenon of crossing over is known to considerably increase the genetic variation of the resulting offspring. After zygote formation, the successive cycles of cell divisions during embryonic development will develop an organism that during its adult stage will reproduce via sexual reproduction.
What can a person do to limit exposure to X-rays?
wear sunblock
avoid cigarette smoke
wear a protective vest avoid chemicals
X-rays are a form of indirectly ionizing radiation, and it can be really nocive to the humans health, so limiting the exposure is always a priority.
Here the correct option is wearing a protective vest.
-------------------------------------
X-rays are a form of radiation that is indirectly ionizing. Remember that ionization is what causes damage to our cells, so is better to avoid exposures to these types of radiation.
Now, X-rays are strong enough that they can penetrate a lot of common materials (like wood, plastic, etc.) And once it enters in your body, the chain of reactions that starts can't be stoped by external means.
So what you need to do is limit the exposure as much as you can. Ideally, you shouldn't be near a source of X-rays, but if there is no other option, you should use protection against radiation.
It comes in different forms depending on what the application is, for example, there are led screens that you can use to put between you and the source, and these will reduce drastically the fluence (flux of photons) that gets to you.
Similarly, there are protective vests also made in part of led or other high atomic number materials, that absorb the photons and protect you.
So here the correct option is to wear a protective vest, from the given options, is the only one that will protect you from the X-rays.
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PLEASE HELP ME ASAP BECAUSE IT IS DIFFICULT TO UNDERSTAND. Explain it for me.
Answer:
C.
Explanation:
For mRNA strands, there are four letters used in their code. A (adenine), U (Uracil), G (guanine), and C (cytosine.)
For RNA, it is the same, but the Uracil is replaced with Thymine (T).
A always pairs with U.
G always pairs with C.
YOUR QUESTION:
The scientist's strand code is has to convert the Thymine to Uracil since it is RNA instead of mRNA.
Hopefully this somewhat helped :)
Name the components that gets digested in stomach and pancreas.
Explanation:
example protein can be digested both in stomach and pancreas
g 1 molecule of glucose is catabolized to pyruvate and then acetyl-coA. All the acetyl-coA enters the citric acid cycle. How many molecules of NADH are produced from the citric acid cycle only (do not include NADH from glycolysis or the pyruvate dehydrogenase complex in your calculation.) You must answer as a number i.e if you think the answer is 12, you must enter 12, not twelve.
Answer:
6NADH
Explanation:
In the kreb's cycle NAD is reduced during the reduction of 6-carbon citrate to 5 carbon Alpha-Ketoglularate.
The second is produced during the conversion of 5carbon alpha ketoglutarate to succinate. Lastly in the conversion of fumirate to oxoloacetate;another NADH is formed.
However, since two pyruvate enters the Kreb's cycle therefore 6NADH(three NADH per cycle of Citric) are produced for each molecule of glucose that is broken down from glycolysis.
Remember,each glucose molecule goes through 2 cycles of Kreb.
Futhermore co-enzyme FADH2 are also produced,with 2 molecules per 1 glucose.
These Co-ezymes transfer hydrogen ions,into the matrix of the mitochondria,where is is splits to protons and electrons.
The electrons formed the ETC,which produce PMF for transporting protons into the intramembranes for electrochemical gradients needed to generate energy for ATP s synthesis,by ATP synthase.
.
In pea plants, purple flower color, C, is dominant to white flower color, c. The table shows the frequencies of the dominant and recessive alleles in three generations of peas in a garden. Allele Frequency for Flower Color in Peas Generation p q 1 0.60 0.40 2 0.64 0.36 3 0.75 0.25 4 0.80 0.20 Which generation showed the greatest frequency of having one of each allele? generation 1 generation 2 generation 3 generation 4
Answer:
generation 1
Explanation:
The allele frequency is a term that represents the frequency that an allele can appear in a given population. This term can help to develop conclusions about the genetic diversity that a region presents in relation to the individuals that compose it.
In relation to the question above, generation 1 had the highest frequency of having one of each allele. This is because this generation presents the maximum frequency of the dominant and recessive alleles in a coherent way, 0.60 and 0.40. However, the other generations showed a steady and progressive decrease in the recessive allele.
Answer:
Gen 1 or A
Explanation:
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The acidification of the stomach juices is important for the digestion of proteins because: Group of answer choices Proteins are basic, and need to be neutralized.
Answer:
See the answer below
Explanation:
The acidification of stomach juices is important for the digestion of proteins partly because the enzyme responsible for protein digestion work in an acidic medium and the acid also facilitates the unfolding of the proteins.
Hydrochloric acid and the enzyme responsible for the initiation of protein digestion, pepsin is secreted as gastric juice by the stomach, and the latter works by breaking down protein chains into smaller fragments.
What type of transport occurs in the cell membrane when a person does sports and is consuming alcohol?
Cellular transport: it is the exchange of substances through the plasma membrane, which is a semipermeable membrane. Transport routes are through the cell membrane
It allows the metabolism waste to be expelled from its interior It allows the movement of substances that it synthesizes as hormones. Metabolic energy: is the way in which it acquires nutrients through processes of incorporation into the cell of nutrients dissolved in water.
Therefore, when the person consumes alcohol in excess the ce transport is part of the disincorporation of toxic waste, while when the person does sports, and is supposed to have a balanced diet, the cellular transport uses it for his metabolic energy.
Which of the following best describes the flow of energy in the Everglades food web shown below? (4 points) Diagram for an everglades food web. The food web contains the following organisms: American alligator, egret, raccoon, carp, Key deer, insects, Southern leopard frog, mangrove, and sawgrass. Mangrove is at the bottom of the food web, with arrows pointing to Key deer and insects. Sawgrass is also at the bottom of the web, with an arrow pointing to insects. Key deer, insects and Southern leopard frog are on the next level up. The Key deer has an arrow pointing to American alligator. The insects point to egret, carp, and Southern leopard frog. The Southern leopard frog points to the American alligator and the raccoon. The egret, carp and raccoon all points upward toward the American alligator. The carp also points to the egret. The American alligator is at the top of the food web. Mangrove → insects → carp → American alligator; about 90 percent of the energy in one trophic level is transferred to the next trophic level. Sawgrass → insects → Southern leopard frog → raccoon → American alligator; about 10 percent of the energy in one trophic level is transferred to the next trophic level. American alligator → carp → insects → mangrove; about 10 percent of the energy in one trophic level is transferred to the next trophic level. Egret → insects → mangrove → key deer → American alligator; about 90 percent of the energy in one trophic level is transferred to the next trophic level.
Answer:
Although there is no diagrammatic representation of the food web but the question can be answered based on the provided information. The answer is:
Sawgrass → insects → Southern leopard frog → raccoon → American alligator; about 10 percent of the energy in one trophic level is transferred to the next trophic level.
Explanation:
Food web is an interconnected food chain i.e. a series of food chains clustered together. A food web represents the various ways one organism can feed on another in a cycle. Since a food web consists of many food chains, energy is transferred when one organism feeds on another (flow of energy).
Just like a food chain, a food web begins with a PRODUCER, which is an organism capable of producing its own food via photosynthesis. This is the case of mangrove and sawgrass in this depicted food web as they are both producers and hence, must start the food web i.e. be at the bottom of the food web. Organisms called CONSUMERS feed on producers and one another to obtain energy. Consumers can be primary, secondary or tertiary depending on the organism they feed on. Primary consumers feed directly on producers, secondary consumer on primary and tertiary consumers on secondary, in that order.
This accounts for why the American Alligator is at the top of the food web because it is a tertiary consumer.
However, as organisms feed on one another, only about 10% of the available energy is transferred because most of the energy (about 90%) has been used for metabolic processes and hence, lost as heat.
Therefore, the best description for the flow of energy in the Everglades food web is:
Sawgrass → insects → Southern leopard frog → raccoon → American alligator; about 10 percent of the energy in one trophic level is transferred to the next trophic level.
Sawgrass is the producer and must begin the energy flow, followed by a primary consumer (insect). Feeding continues in that order until the tertiary consumer (American alligator) is reached.
Answer:
b) Mangrove → insects → Southern leopard frog → raccoon → American alligator; about 10 percent of the energy in one trophic level is transferred to the next trophic level.
Explanation:
took test on FLVS
explain test for reducing sugar
Answer:
A food sample is dissolved in boiling water.
Explanation:
A small amount of Benedict's reagent is added and the solution begins to cool. In the next 10 minutes, the solution changes colour. if it turns blue, there is no glucose present in it.
As it is heated, it turns yellow. The hotter the colour of the reagent, the higher the concentration of reducing sugar. E.T.C.
There is more,e.t.c.
Hope this few helps.
Read the following scenarios and indicate which of the following processes they describe.
1. Sodium ions (Na ) move through sodium channels in a synthetic membrane.
2. Sodium molecules move randomly around a solution of sodium chloride in water, frequently colliding with other sodium ions and chloride ions.
3. Water molecules move into the cytosol of a cell placed in a hypotonic solution.
4. Water molecules move into the cytosol of a cell placed in pure water.
5. The action of sodium-potassium pumps moves sodium ions (Na ) out of a cell and potassium ions (K ) into a cell. The action of sodium-potassium pumps moves sodium ions (Na ) out of a cell and potassium ions (K ) into a cell. The action of sodium-potassium pumps moves sodium ions (Na ) out of a cell and potassium ions (K ) into a cell.
6. Glucose molecules move into cells lining the intestine against their concentration gradient driven by the movement of sodium ions (Na ) into the cells down their concentration gradient.
1.facilitated diffusion
2.diffusion
3.osmosis
4.osmosis
5.active transport
6.cotransport
help asap giving branlist :D
Answer:
the arrow between the kit fox and a coyote.the arrow between the grasshopper mouse and the red-tailed hawk.the arrow between the grasshopper mouse and the rattlesnake.the arrow between the grasshopper mouse and the coyote.the arrow between the rattlesnake and a red-tailed hawk.Explanation:
All of the options show matter moving from secondary consumers to tertiary consumers.
Hope it helps.
The most diverse and prevalent organisms on earth are
Answer:bacteria
Explanation:
Which of the following is a human-related release of greenhouse gases?
O A. Wild animal respiration
OB. Volcanic eruptions
O C. Intensive agriculture
O D. Solar cycles
It’s A
Answer:
C
Explanation:
I'm pretty sure it's actually C and not A. It's asking for human-related release from greenhouse gases. Humans don't cause volcanic eruptions and aren't in control of wildlife's respirations. The solar cycles has to do with the magnetic flux that rises to the surface of the sun and lasts 11 years. Intensive agriculture increases pollution which harms the environment.
Why do organisms go through the process of meiosis?
Answer:
Meiosis is essential for sexual reproduction and therefore occurs in all eukaryotes (including single-celled organisms) that reproduce sexually. ... These resultant haploid cells can fuse with other haploid cells of the opposite sex or mating type during fertilization to create a new diploid cell, or zygote.
Explanation:
what kingdom does fish belongs to?
Answer:
animalia
Explanation:
Select the correct answer.
Which statement best compares the role of meiosis in a unicellular and a multicellular organisms?
OA.
Meiosis is the mechanism used for producing somatic cells in unicellular as well as multicellular
OB.
Meiosis is the mechanism used for producing gametes in unicellular organisms and somatic cells
O c.
Meiosis is the mechanism used for producing gametes in multicellular organisms whereas it doe
unicellular organisms.
Reset
Next
Answer:
Meiosis is the mechanism used for producing gametes in multicellular organisms whereas it does
unicellular organisms.
Explanation:
Meiosis is a kind of cell division used mainly by sexually-reproducing organisms, whether unicellular or multicellular, to produce gametes i.e. meiosis only occurs during gamete formation.
In sexual reproduction, gametes must fuse in a process called fertilization. This gametes, however, must each possess half of the chromosome number of the individual organism. Meiosis is the process that ensures that the chromosome number of the gametes is reduced by half i.e. diploid (2n) to haploid (n).
Therefore, meiosis is the process of gamete formation in sexually-reproducing unicellular or multicellular organisms.
Help can you pls number 2 to 4
Answer:
Hey there!
1. Load
2. Broom
3. Flagpole
Hope this helps :)
Polaris is ______. (choose the three correct answers). called the north star. no choices fit this sentence always directly over the north pole. a star that is often the brightest start in Ursa Minor.
Answer:
called the north star, always directly over the north pole and a star that is often the brightest start in Ursa minor..
Explanation:
Polaris commonly the North Star or Pole Star and is the brightest star in the constellation of Ursa Minor. It is very close to the north celestial pole, making it the current northern pole star.
hope this answer correct (^^) ....
Alex was energetic once he learned to walk, getting into anything he could find. He soaked in every piece of new information, seeming to learn a new skill every day. But after he turned 2, he became lethargic and inattentive. This coincided with his becoming a much pickier eater; he primarily consumes hot dogs with no bun, fast food French fries, and candy. As a result of this diet, he may have developed . Adding ________ to his diet may help reverse his symptoms.
Which of the following are effects of lead poisoning in infants and children?
a. Slowed body growth
b. Type 1 diabetes
c. Impaired hearing
d. Reduced IQ
e. Kidney damage
Answer:
All but B are primary symptoms of lead exposure in children and infants
Explanation:
The effects of lead poisoning in infants and children are:
Slowed body growthKidney damageImpaired hearingReduced IQLead is commonly as joint toxicant that affects multiple body systems and is very harmful to young children.
Lead that is present the body is spread to the brain, liver, kidney and bones.
When it is stored in the teeth and bones, where it gathers over time.
Human exposure is usually measured through the measurement of lead in blood.
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17- Microorganisms which require 0-5.5 pH for the growth are:
A. Neutrophils
B) Acidophiles
C. Alkaliphiles
D. All of the above
E. None of the above
Acidophiles is the correct