Answer:
the wings on bees and birds
An example of a homologous trait is the wings of bees and birds. The correct option is A.
What are homologous traits?The Theory of Evolution can be used to explain the homologous features of related species. According to this hypothesis, species develop over time from a common progenitor.
In order to adapt to the new environment, species separated from one another and developed new features. The variety of species observed on Earth today is the result of a process known as speciation.
The homologous features that are shared by related species are proof of their shared ancestry. For instance, despite being different, the wings of a bat and a bird share characteristics.
Therefore, the correct option is A. the wings of bees and birds.
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1.A virus mutates, and therefore it has which of the following traits of living things?(1 point)
It uses energy
It evolves.
It grows and develops.
It is made of cells.
2.Compare a virus to a unicellular organism.(1 point)
Viruses reproduce through asexual reproduction; unicellular organisms need a host cell.
Neither unicellular organisms nor viruses respond to stimuli.
Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.
Viruses need energy; unicellular organisms do not need energy.
3.Summarize the lytic cycle.(1 point)
A virus copies its genetic material and then splits its cell membranes in half to form identical viruses.
A virus lays eggs on the host cell’s protein coat, which then hatch and move on to infect other cells.
The viral DNA incorporates itself with the host cell’s and replicates whenever the host cell replicates itself.
A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
4.Differentiate between the lysogenic and lytic cycles.(1 point)
The host cell copies its own DNA during the lytic cycle.
The host cell is destroyed during the lytic cycle.
The virus injects DNA into the host cell during the lysogenic cycle.
Viral proteins are synthesized during the lysogenic cycle.
5.Infer why doctors recommend people, especially elderly and those with weak immune systems, get the flu vaccine every year.(1 point)
They should get the flu vaccine because viruses mutate.
They should get the flu vaccine because their bodies already have a resistance.
They should get the flu vaccine because viruses do not mutate.
They should get the flu vaccine because their bodies do not build up resistance.
Please i really need help
Answer:
1. It grows and develops
2. Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.
3. A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
4. The host cell is destroyed during the lytic cycle.
5. They should get the flu vaccine because their bodies do not build up resistance.
Explanation:
These are the answers I chose from when i did it 10 minutes ago, they wont let me go back to the quick check to confirm it, but this was the best I could do.
The trait of living things that's depicted by a virus that mutates is that it evolves.
The difference between a virus and a unicellular organism is that Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.
The lytic cycle is when a virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
The difference between the lysogenic cycle and the lytic cycles is that the host cell is destroyed during the lytic cycle.
The reason why doctors recommend people, especially the elderly and those with weak immune systems, get the flu vaccine every year is because they should get the flu vaccine because viruses mutate.
It should be noted that when a virus mutates, it shows its ability to evolve. In such a case, there's transformation and development regarding the virus.
People are advised to get the flu vaccine every year because viruses mutate. In this case, getting the flu vaccine will help protect the person from the virus.
Getting a flu vaccine is vital especially for the people that have a low immune system as well as for the older people who are already weak.
In conclusion, the correct options are B, C, D, B, and A.
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Helpppppp!!!
Which of the following is an example of a hormone?
Adrenaline
Blood
Calcium
Thyroid
Answer:
Adrenaline is an example of a hormone. Hormones are chemical messengers in your body, which carry around messages. Adrenaline is a hormone that is released when you are in fear, stress, or doing something dangerous.
Let me know if this helps!
Ans:using a filament of spirogyra in a laboratory Demonstrate how plasmolysi wil occur
Answer:
plasmolysis is the shrinkage of protoplast from the cell wall under the influence of a hypertonic solution.this can be observed by placing the fresh filament of spirogyra in a 10% solution of common salt.the cell undergoes exomosis.
I hope this helps
What kind of question would an ancient myth try to answer?
How are the moon and the tides connected?
What minerals cover the surface of the moon?
Which phase of the moon is most beautiful?
Why does the moon get smaller and disappear?
Answer:
why does the moon get smaller and dissapear?"
Explanation:
One of the questions that ancient mythology would try to answer would be "why does the moon get smaller and dissapear?" Ancient mythology stories always try to explain everyday occurrences in individuals lives that did not really have a simple explanation at the time due to lack of knowledge. Therefore, these stories usually involved the acts of deities to explain the different unknown events in the world such as the moon dissapearing, shooting stars, volcanoes, hurricanes, etc.
Plz answer this. I miss typed it as advanced placement.
Answer:
option 1
Explanation:
Answer:
a and R
are correct
Explanation:
what is reflex action
A action that has came in result of an event
Which type of graph could be easily converted into a pie chart?
Answer:
bar graph can be easily converted to pie chart
An organism and its taxonomic key are shown below.
An image of an organism is shown. The organism has two body regions with four legs on each side. 3 mm is written next to the image of the organism. There are no claw-like pinchers.
Taxonomic Key
Step Characteristic Organism
1 8 legs Go to step 2.
More than 8 legs Go to step 3.
2 One body region Go to step 4.
Two body regions Go to step 5.
3 One pair of legs on each body segment Centipede
Two pairs of legs on each body segment Millipede
4 Less than 1 millimeter long Mite
More than 1 millimeter long Tick
5 Claw-like pinchers Go to step 6.
No claw-like pinchers Spider
6 Long tail with a stinger Scorpion
No tail or stinger Pseudoscorpion
Which organism is shown in the image?
Millipede
Spider
Scorpion
Tick
spider has no tail and has no stinger
Answer: its a spider
Explanation: cause it case a legs and it has two body regions
A car burns gasoline as it moves down the road. Which energy transformation
is the car performing?
A. Kinetic energy to chemical energy and light energy
B. Potential energy to sound energy and nuclear energy
C. Chemical energy to kinetic energy and thermal energy
D. Thermal energy to kinetic energy and nuclear energy
Answer:
A
Explanation:
Which of the following situations would most likely lead to a stable population size?
Answer:
A. The rates of birth and immigration were balanced by the rates of death and emigration.
HELP QUICKLY!
While the average human is able to hold his or her breath for approximately one minute, a whale can dive for over 30 minutes without returning to the surface. Which of the following correctly describes this difference?
Whales need less energy than humans.
Whales gather energy from their environment better than humans.
Whales are more efficient at gas exchange than humans which helps them conserve energy.
Whales have cells that produce energy differently than humans.
why do solvents particles flow into the cell when the initial volume is below 50%
Answer:
because of it's lower concentration
There have been several mass extinctions in the planet's history, such as the extinction of the dinosaurs, but the current mass extinction is different. Greater numbers of species are now going extinct faster than ever before. Also unique to the current mass extinction is the cause. What is causing the current mass extinction
Answer:
There are several actions that not only humans have done to cause mass extinction. There are things such as poaching which is simply killing large and rare animals for horns, fur, meat, tusks, etc. These parts can be sold for money or resources. When one type of animal has characteristics of parts that give the poacher lots of wealth, herds or single animals can be tracked down and killed. The number of these animals dwindle down, and if nothing is done to help the animal, it goes extinct.
But things such as nature itself that can cause extinction where humans can do nothing about. For instance, a frog species called "Splendid Poison Frog " has gone extinct for a certain type of fungus that wiped the entire species out, where we can't do anything about.
There are many results on mass extinction, but these two are some that are caused.
Hope this helped.
The cell membrane regulates what enters and leaves the cell, only allowing
certain things to enter or exit. This is called:
A:Selective Permability
B:Homeostasis
C:Osmosis
D:Transport
Answer:
A)selective permeability
Explanation:
it allows for it to choose ,small particles easily enter and leave the cell unlike large particles
In the rock cycle, if any type of rock is broken down into little pieces, it changes into ______ rock.
Answer:
small rock
Explanation:
hope it's helpful
What is mean by photosynthesis?
Answer:
the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
Hey there!
Photosynthesis is the reaction that converts light energy to chemical energy in sugar and carbohydrates. Humans can't eat sunligh, so we eat the plants. Plants convert the energy in the sunlight into chemical energy using chlorophyll. Chlorophyll is a molecule produced by plants, algae and cyanobacteria, which aids in the conversion of light energy into chemical bonds. It is the reen pigment found in the chlorookasts of higher plants. They are a part of our ecosystem, and they are lower on the food chain.
Hope this helps! I promise I did not copy or anything like that from the internet.
Have a great day! :)
Determine if the process is an example of anabolism or catabolism. French fries are digested in the intestine, breaking them into smaller molecules A body builder exercises to build muscles through protein synthesis A child eats a milkshake, which provides her with energy Process Catabolism
Answer:
--> French fries are digested in the intestine, breaking them into smaller molecules.(Catabolic process)
--> A body builder exercises to build muscles through protein synthesis. (Anabolic process)
--> A child eats a milkshake, which provides her with energy (catabolic process).
Explanation:
CATABOLISM is the process by which living organisms break down large or complex molecules into smaller molecules with the release of energy for their own use. Foods that we consume contains different nutrients which includes carbohydrates, fats &oil, and protein. These nutrients are made available for our body cell use and maintenance through the process of catabolism. Through catabolic processes, these nutrients are broken down into its smaller constituents with the release of energy which is used immediately to power molecular machines that support cell, tissue, and organ function. The following are examples of a catabolic process as it involves breakdown:
--> French fries are digested in the intestine, breaking them into smaller molecules and
--> A child eats a milkshake, which provides her with energy
In contrast, anabolic process involves the building up larger molecules from smaller ones. It uses ATP molecules generated by catabolic reactions as a form of energy to create new molecules that form new cells and tissues, and revitalize organs. For example, muscles can be built from the synthesis of proteins. This is also called anabolic training.
French fries are digested in the intestine, breaking them into smaller molecules - Catabolic process
A body builder exercises to build muscles through protein synthesis - Anabolic process
A child eats a milkshake, which provides her with energy - Catabolic process
Catabolism can be defined as the break down of larger molecules into smaller ones in a series of metabolic pathways of which the energy produced undergoes oxidation and then is released or it is used in another reaction. Digestion is an example of a catabolic process i.e. French fries are digested in the intestine, breaking them into smaller molecules. A child eating a milkshake, which provides her with energy (energy is produced) is a catabolic process.
Anabolism involves the build up of molecules from smaller molecules usually needed for bodily functions. Protein synthesis is an anabolic process (buildup from small amino acids to large proteins. A body builder exercises to build muscles through protein synthesis is an example of anabolism
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for fun
if you had to choose what animal would you be^-^
Answer:
Husky. Why not?
Explanation:
2.1explain the body's hormonal response to dehydration
Answer:
Vasopressin, a hormon is secreted by pituitary gland which is response to dehydration , causes kidney to excrete less water.
The body's hormonal response to the dehydration is the action of vasopressin in the kidney. The vasopressin decrease the work of the kidney and it leads to decrease the amount of water secreted by the kidney to save water in the body.
What is dehydration?Dehydration is a condition where there is less water present in the body. There are many reasons of dehydration, like drinking less water or diarrhea. All reactions of the body work by water. So loss of water severely affect the body.
The hormonal response to dehydration is the release of vasopressin by the pituitary gland of the body. The vasopressin saves water from the body to help body fighting with dehydration. It makes the kidney to filter less water.
Thus, the activation of vasopressin in the kidney causes the body's hormonal reaction to dehydration. Vasopressin lessens the kidney's workload, which causes a reduction in the amount of water the kidney secretes to conserve the body's water supply.
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How are mitosis and binary fission similar?
A. They produce identical daughter cells.
B. They occur only in prokaryotes.
C. They involve division of nuclei as well as cytoplasm.
D. They occur only during sexual reproduction.
Answer:
They produce identical daughter cells.
What statements are true about glycolysis?
Select all that apply.
it consumes some ATP as well as producing it
it produces ATP that can be directly used by cells
o it does not directly require oxygen to operate
o it produces more ATP than any of the other respiration reactions
Answer:
true it consumes some ATP as well as producing it
true it produces ATP that can be directly used by cells
true it does not directly require oxygen to operate
false it produces more ATP than any of the other respiration reactions
Glycolysis consumes some ATP as well as producing it, it produces ATP that can be directly used by cells and it does not directly require oxygen to operate. Hence option A,B and C is correct.
What is ATP?ATP stands for adenosine triphosphate. It is defined as an organic substance that fuels a variety of functions in living cells, including chemical synthesis, condensate dissolution, nerve impulse transmission, and muscular contraction. It is a byproduct of the photophosphorylation, cellular respiration, and fermentation processes and serves as the primary energy currency of the cell.
Glycolysis is defined as a chain of events that convert glucose into two pyruvate molecules, which have three carbons each. Glycolysis is a cytoplasmic process that breaks glucose down into two molecules with three carbons apiece and releases energy. Hexokinase, a phosphorylating enzyme, assists in the phosphorylation process that traps glucose.
Thus, glycolysis consumes some ATP as well as producing it, it produces ATP that can be directly used by cells and it does not directly require oxygen to operate. Hence option A,B and C is correct.
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¿Cuántas partes se divide el cráneo?
Answer:
8
Explanation:
Los 5 huesos que forman la base del cráneo son el etmoides, el esfenoides, el occipital, el frontal emparejado y el temporal emparejado. La base del cráneo se puede subdividir en 3 regiones: las fosas craneales anterior, media y posterior.
Espero que esto ayude
Which of the following statements are true about antibodies?
A. Polyclonal antibodies are part of the natural immune response; monoclonal antibodies are clones of plasma cells used for medical research.
B. Polyclonal antibodies are used for the treatment of cancer; monoclonal antibodies are used for medical research.
C. Monoclonal antibodies work against many types of antigens; polyclonal antibodies work against a specific antigen.
D. Both Polyclonal and Monoclonal antibodies are naturally produced in immune responses.
Answer:
The answer are A and D.
Explanation:
ANTIBODIES
Antibodies are immunoglobulin produced in the body by B cells to help i
For immune response or fight against any foreign invade in the body.
There are two common classification of antibodies and these are;
1. Monoclonal antibodies are produced in the laboratory that can help to restore and improve the immune system against cancer attack.
They bind to the antigens and are many on the surface of cancerous cells than normal cells. They are use for medical research.
2. POLYCLONAL ANTIBODIES are produced by different B cells the body. They are produced from heterogeneous molecules in live animals. They can bind to numerous antigens. They are part of the natural immune response of the animals. They are produced by injecting the animal with immunogen.
Therefore, Polyclonal antibodies are part of the natural immune response; monoclonal antibodies are clones of plasma cells used for medical research.
Both Polyclonal and Monoclonal antibodies are naturally produced in immune responses
Answer:D
Explanation:
D
Which of the following is a scientific question?
O A. What is the boiling point of seawater?
O B. What should I do this weekend for fun?
C. Does each period during the school day last the same number of
minutes?
O D. How long can I use a pen before it runs out of ink?
what is menstruation and why does it occurs
Answer:
A period happens because of changes in hormones in the frame. Hormones are chemical messengers. The ovaries launch the lady hormones estrogen and progesterone . those hormones motive the liner of the uterus (or womb) to build up. The constructed-up lining is prepared for a fertilized egg to connect to and begin developing. If there is no fertilized egg, the liner breaks down and bleeds. Then the identical manner occurs all once more.
It normally takes about a month for the liner to build up, then smash down. this is why a lot of ladies and women get their periods round once a month.
Source:
https://kidshealth.org/en/teens/menstruation.html
https://www.plannedparenthood.org/learn/health-and-wellness/menstruation
thectgod ig follow
5. What are hyphae made of?
Answer:Hyphae are the feathery filaments that make up multicellular fungi. They release enzymes and absorb nutrients from a food source. Hyphae have a firm cell wall made of chitin.
Explanation:
Answer:
They are made of the feathery filaments that make up multicellular fungi
Paragraph explanation of biosynthesis
Answer: Biosynthesis is a multi-step, enzyme-catalyzed process where substrates are converted into more complex products in living organisms. In biosynthesis, simple compounds are modified, converted into other compounds, or joined together to form macromolecules. This process often consists of metabolic pathways.
What characteristic of life can you live without out of the 10 main ones
Answer:
reproduction
We don't HAVE to reproduce to live, but it needed for us to be brought in to this world.
Explanation:
hello!!
What´s Antibiotic
Antibiotics are drugs that are able to fight diseases caused by bacteria. Besides, it is a "golden solution" that can kill harmful bacteria (pathogenic bacteria such as fungi, actinomycetes, ...), has the effect of inhibiting the growth and spread of of these bacteria.
Answer:
antibiotics mean a type of antimicrobial substance against bacteria.
Which actions could be categorized in the “aerobic” section of the Venn diagram?
Check all that apply.
consists of three stages
yields 36 ATP molecules
does not require oxygen
produces lactic acid
starts process with a glucose molecule
Identify the stage of cellular respiration in which each of the following takes place.
Produces 32 ATP molecules
Creates four ATP molecules, but then gains overall only two
Gives off carbon dioxide
Gives off water
Produces two ATP molecules
Answer:
start process with gulcose
Explanation:
simple
