Answer:
Hope this helps!!!!!! I tried my best to answer!
Darwin proposed that evolution could be explained by the differential survival of organisms following their naturally occurring variation—a process he termed "natural selection." According to this view, the offspring of organisms differ from one another and from their parents in ways that are heritable, which happen because of the change in DNA!
Explanation:
Answer:
All species have the same genetic code.
A scientist studies the DNA in corresponding genes of a platypus, a
beaver, and a duck. The DNA from which two species are most likely to be most
similar? Explain your answer.
Answer:
platypus and a duck has similar DNA.
Explanation:
There are certain similarities which are present between duck and platypus such as structure of beak or mouth, webbed feet and laying eggs in order to continue its generation. These three characteristic make the platypus and duck similar to each other. There is also one major difference is present which is that the platypus is the only mammal which lay eggs and feed baby with their own milk. Its tail structure is also different from duck.
The DNA from platypus and beaver are most likely to be most similar because these species share a more recent ancestor.
Sequence homo-logy refers to the level of similarity between nucleotide (DNA) sequences due to shared ancestry in the evolutionary history of life.The species that share a more recent ancestor exhibit a higher level of sequence homo-logy than unrelated species.In this case, the linear order of nucleotides in DNA from platypus and beaver are most likely to be most similar because they are mammals, while ducks are birds.In conclusion, the DNA from platypus and beaver are most likely to be most similar because these species share a more recent ancestor.
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Explain how the shape of a river's stream bed can affect the river's speed and its power to cause erosion.
Explanation: The shape of a river's stream bed affects the speed and eroding power of a river by influencing the amount of friction between the water flowing through the river and the stream bed below. Friction is the force that opposes the motion of one surface as it moves across another surface. In a river, there is friction between the flowing water and the stream bed beneath it. Where a river is deep, less water comes into contact with the stream bed, so there is less friction. The reduced friction means there is less opposition to the water's motion, so the river flows at a greater speed and has more kinetic energy for erosion. On the other hand, where a river is shallow, more water comes into contact with the stream bed, so there is more friction. The increased friction means there is more opposition to the water's motion, so the river flows at a lesser speed and has less kinetic energy for erosion. Also, the roughness of a stream bed covered with boulders and other obstacles causes the water to flow through the river in a turbulent fashion. This could cause the river to move slower in some cases or erode more in other cases.
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Answer:
It changes the amount of friction there is. There is more friction where water is shallow, and less friction where water is not as shallow. The friction has the power to cause erosion as it causes movement of water.
Which field of study would be most useful for a person who wants to help preserve a wetland?
The act of doing what's best for the group is called
commensalism
O mutualism
altruism
symbiosis
11. This picture shows the surface weather model at a particular location.
What type of weather is most likely expected at the location? (3 points)
fog
snowfall
hurricane
thunderstorm
what would be the most likely effect if the side chain of an amino acid group was unstable to vary its structure
second option
Explanation: my brain
VERY EASY QUESTION. WILL MARK BRAINLIEST When is the peak hurricane season for the Atlantic Ocean Basin, and why do hurricanes peak during this time? August to October, because ocean temperatures are the warmest around the equator at that time August to October, because the atmosphere is the driest around the equator at that time September to December, because the atmosphere is the driest around the equator at that time September to December, because ocean temperatures are the warmest around the equator at that time
Explanation:
When is the peak hurricane season for the Atlantic Ocean Basin?
The official hurricane season for the Atlantic Ocean Basin is from 1 June to 30 November.
Why do hurricanes peak during this time?
Although the Atlantic hurricane season officially began on June 1st, a roughly eight-week period that is often the most active and dangerous time for tropical cyclone activity.
In which squares should the phrase “Yellow pods” appear?
The given question is incomplete however the correct question and the flow chart is related to the question as follows:
The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant that has green pods. yellow pods are the dominant trait. The flowchart is missing the labels that describe the traits.
In which squares should the phrase “yellow pods” appear?
1. A and D
2.B and E
3. A, C, and D
4. A, B, C, D, and E
Answer:
The correct answer is: 3. A, C, and D
Explanation:
According to Mendel’s laws of inheritance, when a plant with the dominant trait is crossed with a plant with a recessive trait, as a result, the dominant phenotype appears in all the F1 offspring. On Self cross F1 offspring, produces F2 offspring with dominant and recessive traits.
In the given scenario, pea plant with ‘yellow pods’ are dominant and pea plant with ‘green pods’ is recessive.
Therefore, when pea plant with yellow pods is crossed with the pea plant with the green pod, the F1 offspring (C) produced are with yellow pods.
Thus, parent (A) is with yellow pods and F2 offspring (D) is with yellow pods.
Which of the following is the correct equation for photosynthesis?
a.) CO2 + light + H2O --> O2 + Sugar
b.) CO2 + sugar + H2O --> O2 + light
c.) O2 + light + H2O --> CO2 + Sugar
d.) CO2 + O2 + H2O --> Light+ Sugar
Answer: a
Explanation: light is a energy sourse for the photosintesis and sugar is glucose wich is the food formd at the end of phothosintesis like oxigen..(etc..)....
The answer option with the correct equation for photosynthesis is: A. [tex]CO_2 + light + H_2O --> O_2 + Sugar[/tex]
Photosynthesis can be defined as a biological and chemical process through which living organisms such as green plants (autotrophs), transform light energy (sunlight) into chemical energy.
The correct equation for photosynthesis is given by this chemical equation:
[tex]CO_2 + light + H_2O --> O_2 + Sugar[/tex]
Hence, the necessary input for the process of photosynthesis to take place include the following:
Water ([tex]H_2O[/tex]).Sunlight (light energy).Carbon dioxide ([tex]CO_2[/tex]).
In conclusion, oxygen and sugar are end products (output) of photosynthesis rather being an input.
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In the above reading, it talks about one population wandering away from the other in search of food as the beginning of the polar bear sub-species. Which of the following best describes what occurred to cause this split of the bear population?
A. The brown bears were killed by disease 125,000 years ago leaving only a population of polar bears.
B. The massive glaciers isolated the populations causing geographic isolation
C. They had a variety of fur color alleles, so all the white furred bears moved north
D. All of the Above
Question 2.
Which of the following is an adaptation that allows a polar bear to survive in this biome?
A. Thick fur to help them stay warm
B. They began hunting seal carcasses and then live seals at the waters edge to gain nutrients to survive
C. Their molar shape changed to adapt to eating seals instead of berries.
D. All of the above
Answer:
d,d
Explanation:
all the things are all the above because they have those to help the bears survive
An adaptation that allows a polar bear to survive in this biome because their molar shape changed to adapt to eating seals instead of berries.
What do you mean by biome?A biome is a biogeographical unit consisting of a biological community that has formed in response to the physical environment in which they are found and a shared regional climate.
A biome is an area classified according to the species that live in that location. Temperature range, soil type, and the amount of light and water are unique to a particular place and form the niches for specific species allowing scientists to define the biome.
There are five major types of biomes: aquatic, grassland, forest, desert, and tundra, though some of these biomes can be further divided into more specific categories, such as freshwater, marine, savanna, tropical rainforest, temperate rainforest, and taiga.
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n this lab, you will simulate birds with three different beaks. After watching the birds feed, you will remove fruit to simulate a change in the environment. What question are you answering by doing this observation? Write it by filling in the blanks below.
What is the effect of…
…on…
Answer:
what is the effect of food availability/competition on natural selection
Explanation:
Something along those lines, this is similar to the Galapagos finches when there used to be just one species but due to natural selection and limited food due to competition, the beaks changed to be able to eat the other food s available that they originally could not eat. There are now about 14 due to this.
I hope this helps u!
Pls give a brainliests(had 40 down to 1 no reason) and a thx ;)
Answer:
What is the effect of the type of food available on the frequency of different types of bird beaks?
Explanation:
This is the true answer. Plz give me brainiest, need 5 more! ;)
Sugar, orange juice, and ice are all examples of matter.
Which is true about all three?
A.
They are in the liquid state.
B.
They are made of particles too small to be seen.
C.
They evaporate when they are combined with water.
D.
They are made of the same materials.
Sugar, orange juice, and ice are all examples of matter. The truth about all three is they are made of particles too small to be seen. The correct option is B.
Anything that fills space and has mass is referred to as matter; in other words, the matter is the "stuff" that the cosmos is made of. Elements are the fundamental building blocks of all matter.
They possess unique chemical and physical characteristics and cannot be converted into other elements through regular chemical processes. Anything that can be weighed and takes up space is considered the matter.
Therefore, the matter has both mass and volume. The universe is made up of a wide variety of substances and forms of matter.
Therefore, the correct option is B. They are made of particles too small to be seen.
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Which cell structures are seen in prokaryotic and eukaryotic cells?
nucleus
cell membrane
mitochondria
DNA
ribosomes
cytoplasm
Answer:
cell membrane
DNA
ribosomes
cytoplasm
Explanation: Took assignment on edge
Answer:
B,D,E,F
Explanation:
A student is examining leaf cells. Which organelles are most likely to be missing from the cells?
A. ribosomes
B. chloroplasts
C. lysosomes
D. mitochondria
Answer:
C.) lysosomes
Explanation:
All the other listed organelles are found in plant cells. But lysosomes are sometimes not included.
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When Engelmann exposed photosynthetic algae to light in the presence of aerobic bacteria, he found that some wavelengths of light produced a higher rate of photosynthesis, as evidenced by the number of bacteria gathered near the algae. Based on his results, what color of light did Engelmann find associated with the highest rate of photosynthesis?
A. Red and blue
B. Yellow and green
C. Yellow
D. Red
Answer:
A. Red and blue
Explanation:
Theodor Wilhelm Engelmann, born in 1843 and died in 1909, was a German scientist. He was the scientist who detected which wavelengths of light produced the best photosynthetic activity in green alga. In his experiment, Engelmann exposed the photosynthetic algae to different wavelengths in the light spectrum. He then added aerobic (oxygen-dependent) algae to see where they will accumulate the most in order to detect the best wavelength for algae photosynthesis.
He discovered that the aerobic bacteria accumulated in the parts of the algae exposed to red and blue wavelength of light. This is because the algae exposed to the red and blue light produced more oxygen due to increased photosynthetic rate. This attracted the aerobic bacteria, which needs oxygen, to that particular area with that wavelength.
Need help with ASAP! My diploma depends on it.
Chlorophylls are a type of pigment, a substance that absorbs light. What color
are chlorophylls, which color of light do they absorb, and where are they located in the cell?
A. Chlorophylls are green but absorb red, violet, and blue light and are found throughout the chloroplast.
B. Chlorophylls are red, violet, and blue, but absorb green light and are found in the thylakoid membranes of the chloroplast.
C. Chlorophylls are red, violet, and blue, but absorb green light and are found throughout the chloroplast.
D. Chlorophylls are green but absorb red, violet, and blue light and are found in the thylakoid membranes of the chloroplast.
Answer:
A
Explanation:
correct answer is D, chlorophylls are green but absorb red, violet, and blue light and are found in the thylakoid membranes of the chloroplast.
Which statement describes all types of matter?
A. It is made of carbon, hydrogen, and oxygen.
B. It is composed of organic materials.
C. It takes up space and has mass.
O D. It is made of proteins and carbohydrates,
Answer:
Im pretty sure the answer is C
Answer:
C It takes up space and has mass.
Explanation:
Everything in the world has space and mass
Which affects biodiversity loss the most?
A. Habitat destruction
B. Introduced species
C. Pollution
D. Population growth
Answer:
I believe its C
look at the picture
Answer:
A. Habitat destruction
1. How does the equations help explain the role of
producers in the ecosystem?
1. Producers create energy for other organisms to consume.
2. Producers convert sunlight into usable energy and Nitrogen.
3. Producers convert carbon dioxide and water into sugar.
4. Producers create Carbon dioxide for other organisms.
2. Aerobic Cellular Respiration is important to organisms because
1. It allows plants to produce sugar for food.
2. It releases the oxygen needed by plants for photosynthesis.
3. It converts sugars to usable energy that all organisms need.
4. It helps animals digest the sugars when they eat plants.
Answer:
1. Producers create energy for other organisms to consume.
2. It converts sugars to usable energy that all organisms need
Explanation:
All living organisms require energy, which they obtain by feeding on one another in an ecosystem. The series of feeding steps involved is called FOOD CHAIN. Food chain always starts with an organism called PRODUCER, which is an autotroph i.e. capable of producing its own food by using light energy from sunlight e.g plants. All other organisms in the food chain are directly or indirectly dependent on plants to get energy. This is because plants and other autotrophs create the energy that is being transferred as the food chain progresses.
2. Cellular respiration is an important phenomenon for all living organism because it is the metabolic process by which they obtain the usable energy by their cells i.e. ATP. Food molecules in form of sugar (glucose) eaten by organisms are broken down in the presence of oxygen (aerobic) to yield ATP molecules, which is the energy currency of every living cell. This energy is used to perform the organism's life activities.
What happens when new data call current scientific explanations into
question?
A. Scientists repeat the experiments to prove that the new data are
unreliable.
B. Scientists repeat the experiments to verify results and reevaluate
scientific explanations.
C. Previous explanations are thrown out immediately.
D. Scientists ignore the new data because the findings are clearly
false.
Answer:
B. Scientists repeat the experiments to verify results and reevaluate
scientific explanations.
Explanation:
This is kind of process of elimination. Scientists don't move onto new ideas with out proof so C it out. They wouldn't just ignore new data so it's not D. Between A and B, B seems most likely because when scientists look into new data they wouldn't necessarily have the mindset of trying to prove that it is unreliable. They just want to confirm and learn.
I know this is late for an answer but I wanted to provide one anyway. :)
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Name 4 ways that different types of disease can interact to make a person ill.
Answer:
Modes of transmission or means of transmission is defined as the movement or transmission of pathogen from infected person or any reservoir to other person.
4 ways or modes of transmission of diseases include:
Contact (direct and/or indirect) - Direct contact include physical relation between infected person or susceptible person such as kissing, sexual contact or transfer of oral secretion. Diseases caused by direct contact include small pox, pink eye and hepatitis a and B. Indirect contact include transmission of diseases form infected person to susceptible person through a infected surface such as infected needle.Droplet: water droplet coming out of the mouth, perspiration or other open parts of the body carries pathogens to susceptible person. sneezing and coughing are most common of droplet ways through which diseases spread.Airborne: Some of the diseases are spread through means of air such as chickenpox virus, norovirus, measles morbillivirus, Mycobacterium tuberculosis and influenza virus et-cetra.Vector: Vectors are defined as an organism that carries disease causing pathogens from infected person to other host body. Fleas or other insects are example of vectors.Hence, 4 ways that different types of disease transmission that can make a person ill are droplet, Contact (direct and/or indirect), vectors and airborne.
Compare and contrast nonspecific and specific defenses
Answer:
nonspecific immunity are things that protect the body from various bacterias, viruses, and pathogens. ... Specific immunity are things that protect the body from specific pathogens. It includes the third line of defense. They include the lymphocytes (white blood cells) such as the macrophages, t cells, and memory b cells
Explanation:
A red blood cell placed in distilled water will swell and burst due to the movement of Your answer: A.salt from the distilled water diffusing into the cell B.water molecules moving by osmosis into the cell C.water from the red blood cell moving into the distilled water
Answer:
B
Explanation:
Water moves from higher potential to lower potential i.e it moves from surounding to the cell.
Examine the scenario. A cell is sitting in a beaker filled with an isotonic solution. A researcher adds a large quantity of salt to the solution. How will the cell be affected by this change? The cell will increase in size. The cell will increase in size and then burst. No change will occur since the solution is isotonic. The cell will decrease in size.
Answer:
the cell will increase in size
Explanation:
salt causes swelling in organisms
Select the correct answer. Neurofibromatosis, a genetic disease caused by mutation on the NF1 gene, follows an autosomal dominant pattern of inheritance. The diagram shows that the father carries two copies of the defective gene and the mother is unaffected. What percentage of offspring will have neurofibromatosis? a diagram showing a father who has the disease neurofibromatosis (alleles RR) and the mother is unaffected (alleles rr) A. 0% B. 25% C. 50% D. 100%
Answer: c 50% not sure though but its a try
Explanation:
Answer:
its D) 100%
Explanation:
I just got a 100% on the test
What’s the color of the sky
Answer:
Sky Blue :)
Yw
Answer:
Blue
Explanation:
Alot of people are saying that the sky is every color in the world but I don't get that
Diagrams and outlines 1. The above picture is showing what type of boundary?
2. Please identify the different constructive and destructive processes occurring in the diagram.
3. Where in the world do you usually find these type of interactions?
Answer:
hi dude
Explanation:
An experiment was designed to investigate the effect of caffeine on the rate of the
heartbeat of fruit flies. Two populations of fruit flies were grown in a lab. Both
populations were raised drinking the same type of water and the same type of food.
Both populations were exposed to the same amount of light and regulated
temperature at 20 degrees Celsius. The fruit flies' heartbeats were then monitored
at two hour intervals. The fruit flies of population one were given caffeine five
minutes before their heartbeat was checked. The fruit flies of population two
were not given any caffeine.
what is the control variable
what is the expirimental group
what is the independent variable
Name a controlled variable or constant
was quantitive or qualitative data collected
To push a heavy box up a ramp into a moving van, what could be used to
decrease the force of friction?
Check all that apply.
O A. Place rollers or wheels on the bottom of the box.
O B. Place another box on top of the one you are trying to slide.
0 C. Push harder on the box.
I D. Put a lubricant between the ramp and the box.
*THERE IS MORE THAN ONE ANSWER *
Answer:
I would say A. and D.
Explanation:
These 2 options can help decrease the force of friction.