Answer:
B,jo,u and y
Explanation:
I honestly dont know
Answer:
B, J, O,U, And Y
Explanation:
Coded messages are those written using codes. These codes can be numbers, drawings, geographic figures and even letters written in different orders or the omission of some letters. This type of message is designed to prevent anyone other than the intended recipient from viewing it. The concept of encrypted messages is an ancient one, since the Roman emperor Julius Caesar would have used a simple form of encryption to send messages to his generals.
When these messages use letters, it is common for the letters B, J, O, U and Y not to appear.
Can you please answer these 5 questions ? :)
1. Explain how changes in energy flow and chemical cycles can affect ecosystems
2.How can a disturbance is a key feature of a community?
3. Chthamalus example and overlapping niches
4. What are the similarities and differences between energy and chemicals
5.What is the relationship between latitude and species richness?
Pleaseee and thank you
Answer:
1. Changes in energy flow and chemical cycle can affect the productivity of the ecosystem.
2. Disturbance is a key feature of the community because it is the disturbance that produces diversity within the community.
3. A niche is the combination of an organism’s habitat, its adaptations and its role in the habitat. In the absence of competition from other species an organism can occupy its range and it is called fundamental niche. Due to competition its niche narrows and the narrowed down niche is called realized niche.
4. In its niche Chthamalus, a type of barnacle has to face competition from Balanus which is also a barnacle. Thus the realized niche of Chthamalus is the high tide zone. In the absence of competition from Balanus whole of the inter-tidal zone is the niche of Chthamalus which is its fundamental niche.
5. Species richness decreases on moving from lower latitudes to higher latitudes. Species richness is more near the equator and on moving towards the poles it decreases.
what will happen to a base isolated building when seismic wave strike the building during an earthquake
10 examples of biting and 10 example of piercing and chewing pests and how they affect crops
Examples of biting and chewing pests are snails, slugs, caterpillar, Helicoverpa, diamond black moth, beetles , termites, leaf worms, grass hoppers etc.
Examples of piercing insects are lace bugs, aphids, white flies, glassy winged sharp shooter, false chinch bugs, Bargrada bug, mealy bug, Eugenia psyllid, Pittosporum psyllid, Tipu psyllid etc.
Explanation:
Pests that affect crops have different feeding habits. Some pests belong to the type biting and chewing pests. These pests bite into the plant parts and chew them. This will leave circular holes in the leaves and semicircular holes in the leaf edges.
Piercing and sucking insects pierce into the plant parts and suck the sap. Removal of sap turns the plants yellow, and wilted. The growth might get stunted and in severe cases the plant may die off.
Chewing insects cause physical damage to plants by eating leaves, stems, and roots, leading to reduced photosynthesis and growth. Piercing-sucking insects damage crops by extracting plant sap and often transmit diseases to the plants.
Biting and Piercing-Chewing Pests and Their Effects on Crops
Chewing Insects:
Caterpillars (e.g., cabbage worms): Defoliate plants by eating leaves.Beetles (e.g., Colorado potato beetle): Damage foliage, stems, and roots.Grasshoppers: Consume leaves and young plants.Armyworms: Cause chewing damage to leaves and stems.Fall Webworms: Create webs and skeletonize leaves.Leafminers: Create tunnels in leaves, reducing photosynthesis.Root Weevils: Chew on roots, affecting plant stability and nutrient uptake.Cutworms: Cut off plant stems at the base.Weevils (general): Feed on various parts of plants.Earwigs: Chew on plant leaves and flowers.Piercing-Sucking Insects:
Aphids: Suck sap, causing deformed growth and transmitting diseases.Leafhoppers: Cause leaf curling and transmit pathogens.Scale insects: Weaken plants by continuous sap extraction.Mealybugs: Cause yellowing and stunted growth by sucking plant juices.Whiteflies: Excrete honeydew leading to mold growth on leaves.Squash bugs: Wilting and death of squash and pumpkin plants.Spider mites: Cause stippling and bronzing of plant leaves.Thrips: Deform flowers and leaves by sucking sap.Stink bugs: Damage fruits and vegetables by feeding and injecting toxins.Psyllids: Cause leaf yellowing and stunted growth by feeding on plant fluids.Both types of pests can seriously affect crop health and yield by directly damaging plant tissues or indirectly by transmitting diseases.
If enough heat is added to a gas, which of the following would most likely happen?
A.
Its mass would decrease.
B.
It would become a liquid.
C.
Its mass would increase.
D.
It would become a plasma.
Answer:
I think the answer is D. it would become plasma
Answer:
D
Explanation:
It would become a plasma because with enough provided heat or would have to change into a plasma if it condensed it would become a liquid then if it cooled it would become a solid
Which of the following describes how livestock can impact water quality?
Water withdrawals add stress in areas with low supply.
Waste can seep into groundwater supplies.
Pesticides, insecticides, and other chemicals can poison aquatic animals.
Soil particles or sediments can run off into water supplies and cloud water.
Answer: D
Explanation:
D is the answer
Answer:
The correct answer is the last statement.
Explanation:
Overgrazing by livestock results in soil erosion, which eventually causes sediments to run-off and get transported into an adjacent water body. This results in water turbidity. Overgrazing removes the grasses, thus, exposing the top cover soil to water erosion and wind.
The withdrawal of the ground cover can also enhance drying, thus damaging the organic matter, and hampering the soil composition, which makes soil erosion to occur easily. Thus, overgrazing can hamper the composition of the soil, diminishing infiltration, and enhancing run-off.
10 ml of a 3% hydrogen peroxide solution is added to five test tubes. As the hydrogen peroxide decomposes to produce oxygen gas, the rate of oxygen production is rated on a scale of 0 - 5, 0 meaning "no oxygen" and 5 meaning "fast".
Potential Catalyst Effects On Reaction Rate
Reactant -----Oxygen produced
H2O2------ 2
+0.1M FeCl3------ 5
+0.1M NaCl------- 0
+0.1M Fe(NO3)2----- 4
+0.1M KNO3---- 0
To the other four test tubes of hydrogen peroxide, five drops of additional solutions are added. The solutions are indicated in the data table as well as the rate of oxygen production for each.
Based on the data, what is the MOST appropriate conclusion for this experiment?
A) Iron compounds are always used as catalysts.
B) Reaction rate is always increased by iron compounds.
C) Increasing the temperature increases the rate of decomposition.
D) Iron compounds are a catalyst for the decomposition of hydrogen peroxide.
Answer:
D) Iron compounds are a catalyst for the decomposition of hydrogen peroxide.
Explanation:
The reaction of descomposition of hydrogen peroxide (H₂O₂) to produce oxygen (O₂) is:
2H₂O₂ → 2H₂O + O₂
Based on the data of potential catalys effects on reaction rate:
A) Iron compounds are always used as catalysts. FALSE. It is possible to know that, for this reaction, iron compounds are acting as catalyst but there is no information about all reactions to know that iron compounds are always catalysy
B) Reaction rate is always increased by iron compounds. FALSE. Again, for this reaction iron compounds increases reaction rate but it is not possible to know that reaction rate is always increased by iron compounds.
C) Increasing the temperature increases the rate of decomposition. FALSE. There is no information about temperature of reaction.
D) Iron compounds are a catalyst for the decomposition of hydrogen peroxide. TRUE. As both iron compounds increases the rate of reaction, it is possible to say that iron compounds are a catalyst for the descomposition of hydrogen peroxide.
I hope it helps!
Answer:
D
Explanation:
According to the experimental data, iron compounds are a catalyst for the decomposition of hydrogen peroxide. Both test tubes with H2O2 plus Fe(III) compounds show an increase in oxygen production, which in turn indicates an increase in the rate of reaction. There is no temperature variable in this experiment.
describe how the results of the hershey-chase experiment would have been different if proteins were the genetic material
How would a cloned animal compare with the original animal whose DNA was copied?
Answer: An animal cloned from one animal, if not using any crossing of DNA, would be the exact same as the animal who's DNA was copied, genetically. Being raised in a different environment would cause changes of personality. Which means that nearly every animal will have a different personality, due to the fact that it's impossible to raise two things the exact same way.
Explanation:
All cells contain cell membranes. Which of the following describes the composition of cell membranes?
A. Cell membranes are composed of carbohydrate chains, which allow all materials to enter and leave the cell.
B. Cell membranes are composed of cellulose, which provides rigidity for the cell.
C. Cell membranes are composed of cytoplasm, which allows proteins to be excreted by the cell.
D. Cell membranes are composed of lipid molecules, which provide a flexible structure.
The cell membrane is selectively permeable, are composed of lipid molecules, which provide a flexible structure. Thus option D is correct.
What is cell membrane?The cell membrane is a thin selectively semi-permeable membrane present in all living organism including bacteria, plant and animals, it is an outer covering of a cell by surrounding cell cytoplasm.
The two major components are Proteins and lipids where as the ratio of protein to lipid may vary depending on types of cells, most common type of lipid in membrane are phospholipid, which form a semi-permeable lipid bilayer.
This lipid are amphipathic in nature means it has hydrophilic or water loving head and hydrophobic or water hating tail group, which help them to interact with both polar and nonpolar solvent respectively.
Some organelles like nucleus and mitochondria have double layered cell membrane, cell membrane provide protection to cell and maintain the integrity of the internal environment and act as a communication agent.
Thus option D is correct.
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Final answer:
Cell membranes are composed of lipid molecules, which provide a flexible structure. They also contain proteins and cholesterol.
Explanation:
The composition of cell membranes is primarily made up of lipid molecules, which provide a flexible structure. These lipids form a phospholipid bilayer with hydrophobic tails facing inward and hydrophilic heads facing outward. Additionally, cell membranes also contain various proteins and cholesterol that are embedded within the lipid bilayer.
Chemical reactions convert
Answer:
chemical reactions convert reactant to product.
Answer:
Chemical reactions convert reactants to products.
Explanation:
Chemical reactions convert reactants to products. In nonliving systems, the presence of a(n) catalyst allows the reaction to proceed very quickly and have a lower activation energy. In living systems, this function is carried out by proteins called enzymes.
Which statement best describes the difference between the sympathetic and parasympathetic nervous systems?
A.
The sympathetic system sends signals within the brain and the parasympathetic system sends signals between the brain and the body.
B.
The sympathetic system contains the brain and spinal cord and the parasympathetic system contains the peripheral nerves.
C.
The sympathetic system controls voluntary body movements and the parasympathetic system controls involuntary functions.
D.
The sympathetic system prepares the body for stress and activity and the parasympathetic system prepares the body for rest.
Answer:
D. The sympathetic system prepares the body for stress and activity and the parasympathetic system prepares the body for rest.
Explanation:
Sympathetic and Parasympathetic nervous system are two divisions of autonomic nervous system.Acetylcholine is a common neurotransmitter released by preganglionic neurons of both systems.The post Ganglionic neurons of these two systems release different neurotransmitter.The sympathetic nervous system is concerned with 'fight and flight response'The parasympathetic nervous system is concerned with 'rest and digest ' response._____ act as signals or markers to help cells recognize one another.
Explanation:
-Carbohydrates act as signals or markers to help cells recognize one another.
Carbohydrates are organic macromolecules with a range of functions within organisms. They may act as energy storage, structural support, and signal molecules. Together with transmembrane proteins embedded within the membrane from the extracellular fluid to the cytoplasm, they form glycoproteins (proteins attached to carbohydrates) which function as cell surface markers .
Further Explanation:
Carbon, is the backbone of all biological life on Earth. It contains 6 electrons, with 4 on its valence shell, and thus, readily forms covalent bonds with other elements. Covalent bonding involves the sharing of electrons; in nature, this occurs with hydrogen,oxygen, nitrogen, and phosphorus as highly flexible single bonds capable of rotation; rigid, non-rotating double; and very strong triple bonds. Carbon compounds form rings, and long branched chains- thus, carbon can form macromolecules in nature.
In nature, organic compounds may be large chains of monomers form biological macromolecules which carry out many essential functions in the body. These can include nucleic acids, carbohydrates, proteins and lipids. These are organic molecules, meaning they're ringed or long-chain Carbons bonded to the elements oxygen (O), hydrogen (H), nitrogen (N) and phosphorus (P); they are found in essential organic biomolecules include, proteins, nucleic acids, lipids and carbohydrates.
Carbohydrates function to supply energy and support molecules they consist of mainly sugars or starches in long chains and rings to form monosaccharide monomers. They include monosaccharides, disaccharides and polysaccharides which describes the type of bonding and the degree of complexity of the polymers. Basic makeup: C, H, O -with many polar OH groups
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Why are 2 different enzymes needed for the synthesis of glycogen from glucose phosphate?
Answer: Explain why two different enzymes are needed for the synthesis of glycogen from glucose phosphate. This is because enzymes are substrate specific, in that each enzyme only catalyzes one substrate. This is because enzyme activity increases with concentration, or availability of the substrates.
Explanation:
Answer:
Two different enzymes are needed for the synthesis of glycogen from glucose phosphate due to enzymes being only able to catalyze only one type of substrate.This simply every enzyme has only one type of substrate which it acts on.
Enzymes help to regulate the complex chemical reactions that occurs in organisms by speeding it up.This is essential to prevent starvation of various nutrients or compounds needed by the body.
In this scenario, there are two enzymes which aids the synthesis of glycogen from glucose phosphate.
UDP-glucose pyrophosphorylase: This acts on glucose phosphate to form UDP-glucoseGlycogen synthase: This acts on glucose 1 phosphate to form Glycogen.Read more on https://brainly.com/question/14058578
Match each type of muscle tissue to the action it performs in the body.
controls voluntary movement
in the body
enables blood to flow through
the body
enables the movement of food
for digestion
cardiac muscle
arrowRight
smooth muscle
arrowRight
skeletal muscle
arrowRight
Answer:
controls voluntary movement in the body : skeletal muscle
enables blood to flow through the body : cardiac muscle
enables the movement of food for digestion : smooth muscle
Explanation:
Answer:
controls voluntary movement in the body : skeletal muscleenables blood to flow through the body : cardiac muscleenables the movement of food for digestion : smooth muscle
Explanation:
put the following in order from smallest to largest: cells, tissues, organ systems, organs
1. Cells
2. Tissues
3. Organs
4. Organ Systems
Hope I helped!
~Stay golden~ :)
Answer:
Explanation:
1. Cells
2. Tissues
3. Organs
4. Organ Systems
Which of the following tags should be used to retrieve information from a
database about a DNA segment of a human gene that codes for a specific
protein?
A. Nucleotide sequence, human, hemoglobin
B. Sugar monomer, amino acid, fatty acid
O
C. Mouse, chromosome II, centrosome
O
D. Human, mouse, fruit fly
SUBMIT
Answer:
The correct option is A. Nucleotide sequence, human, hemoglobin
Explanation:
If the segment of the DNA for the human gene is known then it will be very easy to find the gene on a database. The tags which should be used will be the nucleotide sequence, where the known sequence shall be mentioned.
Then we will choose the tag for the organism which is humans in this case. Then we will select the tag for the protein which is made by the nucleotide sequence, which is protein in this case. Hence, option A is the correct answer.
When the sun reaches the end of
released into space, forming a
life cycle, the expanded part will be
O
A. red giant
O
B. brown dwarf
c. white dwarf
O
O
D. planetary nebula
When the sun reaches the end of released into space, forming a life cycle, the expanded part will be Planetary nebula.
Explanation:
Planetary nebula formed after when the external layer is shredded due to running out of fuel so that it can burn. This external layer of gas expand into the space, the shape of nebula can often be ring shaped or even a bubble. At the centre of this nebula it has the shinning left over middle part of the star. This star can also be seen. The temperature of the nebula is 100000C. The planetary nebula last for about 10000 years between its formation and the recombination.
20. If GUUAACCGAUUGCCAUU is on the strand of mRNA. What anticodon would the tRNA bring to the mRNA strand during translation?
Answer: CAAUUGGCUAACGGUAA
Explanation: tRNA interprets mRNA code during translation so it is the job of tRNA to match the amino acids with the correct codons on the mRNA strands. According to the base pair rule of RNA, Adenine and Uracil (A -U) are base complements while Guanine and Cytosine (G - C) are base complements. So if;
mRNA: GUUAACCGAUUGCCAUU
then,
tRNA: CAAUUGGCUAACGGUAA.
A biologist studying a desert ecosystem observes that the population of a lizard species increases following particularly hot, dry period that causes a snake population to decline. What could the biologist hypthesize about the roles of these two species?
A) The lizard preys on the snake
B) The lizard is a parasite of the snake
C) The snake and lizard use the same limiting resource
D) The snake is a keystone species in the ecosystem.
Answer:
D)The snake is a keystone species in the ecosystem.
Explanation:
example of omnivores
An omnivore eats both plants and animals!
Badgers, pandas, raccoons, and dogs are examples of omnivores I think!
Answer: human, raccoons, opossums, pigs, rats, badgers, and most bear species
Explanation:
can you please tell me the answer
5 hours
Explanation:
Because it will
A scientific variable is something that Select in an experiment.
Select
changes
moves
remains
Answer:
A scientific variable is one that make changes in the experiment.
Explanation:
The things that are changing in an scientific experiment is called variables. Variables are something can make changes or effect the result of study. Variables are needed for every study in order to understand the differences. A variable is a condition or a factor that exist in different types or amount. There are three types of variable in a scientific experiment. Independent variable, dependent variable, and control variable. Independent variable is one that changes may occur and it is observed. Dependent variable is one that scientist should focus on observation to know how it respond to the changes on the independent variable.Control variable are quantities that should remain constant.What is units of momentum ?
Answer:
(kg*m/s)
Explanation:
Kilogram meters per second. It is the product of the units of mass and velocity.
Answer: Mass and velocity
 Imagine a change in the iguana's habitat from dry land to aquatic. Based on the Generation I allelic frequencies, we can assume only a small percentage of iguanas had webbed feet and were able to survive. Over many generations, if their habitat remains aquatic, iguanas without webbed feet will disappear from this population.
Predict what should happen to the allelic frequencies within the iguana population over time.
A)A new species of iguana will evolve.B)The dominant and recessive alleles will eventually balance out.C)The dominant allele will eventually disappear from the gene pool.D)The recessive allele will begin to mask the effects of the dominant allele.
Submit

Hint
Evolution
(SB6.d) Genetic Changes And Populations
Answer:
The correct option is C. The dominant allele will eventually disappear from the gene pool.
Explanation:
According to the theory of natural selection, only those organisms are able to survive and reproduce which are better adapted to survive the environmental changes. A trait that is not required by the organisms of a species will become extinct whether it be a dominant trait of a recessive trait. Hence, in the above scenario, the dominant trait will eventually disappear as it no longer has any function to the changed environmental conditions.
Final answer:
In a population of iguanas that undergoes a habitat change from dry land to aquatic, the allelic frequencies will change over time. Specifically, the alleles for webbed feet (which allow iguanas to survive in the new aquatic habitat) will increase in frequency, while the alleles for non-webbed feet will decrease and may eventually disappear. This is an example of natural selection.
Explanation:
In a population of iguanas that undergoes a habitat change from dry land to aquatic, the allelic frequencies will change over time. Specifically, the alleles for webbed feet (which allow iguanas to survive in the new aquatic habitat) will increase in frequency, while the alleles for non-webbed feet will decrease and may eventually disappear. This process is an example of natural selection, where individuals with advantageous traits have a greater chance of surviving and reproducing.
Therefore, the correct prediction for the allelic frequencies within the iguana population over time is option C) The dominant allele will eventually disappear from the gene pool.
Transcription and Translation .A graduate student determined that the sequence GAT exits in a section of DNA. This code represents the amino acid aspartic acid.Will aspartic acid definitely be found in the transcribed mRNA strand? Will it definitely be found in the synthesized protein chain? Explain your answer.
Explanation:
Sequences of DNA make up genes which can have different forms called alleles. DNA is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins. The sequence GAT is on the sense strand 5' → 3' direction, thus it has the same sequence as mRNA
Codons encoding aspartic acid will be found on the mRNA strand as GAT. As each odon encodes one amino acid, it will be present on the synthesised chain; mRNA codons undergo transation- this will produce Asp, aspartic acid.
Further Explanation:
The nucleic acids are comprised of smaller units called nucleotides and function as storage for the body’s genetic information. These monomers include ribonucleic acid (RNA) or deoxyribonucleic acid (DNA). They differ from other macromolecules since they don’t provide the body with energy. They exist solely to encode and protein synthesis.
Basic makeup: C, H, O, P... life on Earth is Carbon based nucleotides contain 5-carbon sugars, and nitrogen; the bases may contain single to double bond rings
All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. Codons are three nucleotide bases, with each codon encoding an amino acid or signalling the beginning or end of protein synthesis.
RNA codons determine certain amino acids so the order in which the bases occur within in the codon sequence designates which amino acid is to be made bus with the four RNA nucleotides (Adenine, Cysteine and Uracil) Up to 64 codons (with 3 as stop codons) determine amino acid synthesis. The stop codons ( UAG UGA UAA) terminate amino acid/ protein synthesis while the start codon AUG begins protein synthesis.
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In the organization of living things, a __ would include the largest number of individuals
Answer:
The correct option is B) ecosystem
Explanation:
Species can be described as a group or organisms that can interbreed and produce fertile offsprings.
A population can be described as the number of a particular type of species which are living in a given area at a particular time and they have the ability to breed and produce viable offsprings.
All the different populations living in an area at a particular time make up a community.
All the living communities with all the non-living factors (abiotic factors) of an area make up an ecosystem. Hence, ecosystem is the correct option.
15 points plez help. Explain why an area that goes through secondary succession will likely reach its climax community before an area that goes through primary succession.
Answer:
Primary succession can be described as the development of a community in an area where there was no form of life before. For example, an area where volcanic eruption might have occurred.
Secondary succession can be described as an ecological succession which occurs in areas where the previous community had been destroyed by some kind of environmental disaster or human activity like fire etc.
As secondary succession occurs in areas where there was life before that means that the soil of this area will still have essential minerals and nutrients which will support life better as compared to areas of primary succession. In primary succession, the area might not even have soil. The rocks will be converted to soil in these area which will take a lot of time. Hence, an area that goes through secondary succession will likely reach its climax community before an area that goes through primary succession.
Answer:
The answer that they gave was
"An area going through secondary succession reaches its climax community faster because the area begins with some soil and some plant and animal species. An area that goes through primary succession, on the other hand, begins with no soil and no organisms, so reaching the climax community takes longer."
Explanation:
(b) The pondweed was placed in a test tube of water at 10°C.
The number of bubbles of gas produced by the pondweed in three minutes was recorded.
This was repeated with water at different temperatures.
The light intensity was kept constant for each temperature.
(i) State why the light intensity absorbed by the pondweed is not the same as
the light intensity measured by the light meter.
Answer:
As no figure but optimum temperature is directly proportional to the rate of photosynthesis ie 10 to 20 Celsius depends on plant but it's enzyme is 35 to40
What kind of bonding occurs between carbon atoms, allowing carbon to form stable molecules?
Single, double, and triple covalent bonds
Single, double, and triple ionic bonds
Single, double, and triple hydrogen bonds
Single, double, and triple metallic bonds
Answer:
The correct answer is single,double and triple covalent bonds .
Explanation:
A carbon atom can form a single bond with another carbon atom example ethane.
A carbon atom can form a double bond with another carbon atom example ethylene
A carbon atom can form a triple bond with another carbon atom example acetylene.
But during the formation of Carbon carbon single bond or double bond or triple bond the valency of carbon atom that is 4 is always maintained.
What is the most common type of mass movement in the San Gabriel Mountains?
A) creep
B) slump
C) Debris Flow
D) sand dune slippage
Debris Flow is the most common type of mass movement in the San Gabriel Mountains.
Explanation:
It is the one of geological process due to which soil, fragmented rocks flows down mountainside, making channels, also takes object along with it in their path. That gives rise to formation of thick muddy deposits over the surface. this happens when the slope reaches the peak of slope saturation point, huge debris flow begins off the mountains, it destroys everything, causing hazard to local population. Due to excessive rainstorms followed by fires, the soil unrestricted and leads to debris flow.