Answer:
Bacteriophage
Explanation:
Bacteriophage is nothing but a virus that harms and kills the bacteria.
The Hershey-Chase Experiments is a well known experiment done by scientist, Alfred Hershey and Martha Chase. They conducted the experiment in the year 1952.
It was an extra ordinary experiment which made the world believe that the DNA is the genetic material and not a protein. In their experiment, they tried to find out if the protein coat or the core of the DNA of the virus which enters into the infected cells would help them to understand whether the genes were made of DNA or of protein.
They used sulfur-35 and phosphorus-32 radioactive isotopes to trace the DNA and the proteins.
Answer:
Explanation:
Hershey and Chase started with a virus called a bacteriophage.
They used the radioactive isotope sulfur-35 to label the protein
of the virus and phosphorus-32 to label the DNA of the virus.
They allowed the tagged virus to infect bacteria and studied the results. Hershey and Chase found that the only radioactive isotope within the bacteria was 32P.
This result indicated that the genetic material inserted by the virus to infect the bacteria was DNA.
How do animals survive in air pollution?
Which of the following BEST explains how scientists are able to determine the
structure of Earth's interior?
1) Scientists gather indirect evidence using seismic waves (Earthquakes) along with what is visible at Earth's surface.
2)Drilling deep within the Earth.
3)By cutting into other terrestrial planets.
4) Our modern knowledge of the Earth's interior is just a guess that many scientists have accepted.
Answer:
I think number 1 is the answer.
Scientists gather indirect evidence using seismic waves (Earthquakes) along with what is visible at Earth's surface. The correct option is 1.
What are seismic waves?Seismic waves are caused by sudden movement of materials within the Earth, such as fault slip during an earthquake.
Seismic waves generated by earthquakes or explosions can travel through the Earth's interior, revealing information about the properties of the rocks and other materials they pass through.
In addition to seismic data, scientists use other indirect methods such as magnetic and gravitational field studies, as well as analyses of rocks and minerals found at or near the surface.
Scientists collect indirect evidence by observing seismic waves (Earthquakes) as well as what is visible on the Earth's surface.
Thus, the correct option is 1.
For more details regarding seismic waves, visit:
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What happens in Interphase?
a. The cell grows & replicates DNA
b. The cell splits in two
c. The chromosomes move to the middle
d. The cell starts to cleave
Answer:
A, Cell grows and replicates DNA
Explanation:
you can also just look this one up on googlo
How fast can you answer correct..? How fast can i give you brainliest. Explain Your answer:D/ HELP........................................
Answer: A.
Explanation:Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a ... Between each pulse, the radar station serves as a receiver as it listens for ... If pulses are emitted too frequently, the returns from one pulse will be ... Over the area covered by radar echoes, a program assigns a precipitation type
Answer:
A
Explanation:
becuase it A
And the person on top or down said it A so i think it A
How would a small, uncharged lipid move across the cell membrane?
o through simple diffusion, down the concentration gradient
O through simple diffusion, against the concentration gradient
o through facilitated diffusion, down the concentration gradient
O through facilitated diffusion, against the concentration gradient
Answer:
Through simple diffusion, down the concentration gradient.
Explanation:
The phospholipids of the membrane are amphipathic with hydrophillic heads and hydrophobic tails. Other polar molecules cannot go through this hydrophobic interior. Since small uncharged lipids are non polar and hydrohobic, they are able to go through the membrane without the help of transport proteins. Therefore, the last two options can be ruled out because facilitated diffusion includes the use of a protein. Diffusion involves molecules moving down the concentration gradient so the second option can be ruled out.
Has the biotechnology of bread changed since it was first created? Why or why not?
Which value represents a population density? A. 3,000 fish in a certain lake B. 1,500 shrimp per cubic meter of sea water C. 1,300 shrimp in a certain ocean D. 500 adult crabs along the entire intertidal zone
Answer: D. 500 adult crabs along the entire intertidal zone
Explanation:
Answer:
D. 500 adult crabs along the entire intertidal zone
Explanation:
The crab Lynda tell Ella ya carries a pair of sea anemones on its claw. The crab uses the sea anemones stinging tentacles as protection and the sea an enemy obtain small food particles released by the crab as it feeds which type of symbolic relationship does this best illustrate
Answer: Mutualism
Explanation: The relationship between the crab and the sea anemone describes mutualism, a type of symbiotic relationship.
Mutualism describes the ecological interaction between two or more species that benefits both; typically involving the exchange of substances or services between both.
It plays a key role in ecology and is thought to have driven the evolution of much of the diversity currently in existence today.
What is the phenomenon that takes place at the level of the green leaves of the carrot
Explanation:
tttyyygftj that's all I have
Which land cover type has the least area in United States? A. special-use land B. crop land C. forest-use land D. wet land E. urban area
Which cells in your body undergo cellular respiration?
Select one:
a. your brain cells
b. your skin cells
c. your heart cells
d. every cell in your body
Answer: D, every cell in your body
Explanation:
A type of worm with many linked sections is a flatworm.
True or False
Answer:
False.
Explanation:
Flatworms are unsegmented.
which of the following is FALSE?
a. sex-linked traits can affect females, but it’s rare when it happens
b. autosomal disorders aren’t sexist: they affect males and females just the same
c. sex-linked disorders happen because x and y chromosomes are not homologous
d. autosomal disorders affect all chromosome pairs
e. sex-linked disorders can be inherited in the x chromosome of both mom and dad
Answer:
option C is incorrect
Explanation:
Because sex chromosomes don’t always come in homologous pairs, the genes they carry show unique, distinctive patterns of inheritance.
What is the main function of the cell membrane?
A. To pass the genetic information from one cell to another.
B. To protect the cell from Invaders.
C. To regulate what enters and leaves the cell.
Answer:
pretty sure its b
Explanation:
The answer for this is A.
Information that a system uses to monitor progress and make adjustments is called the _____.
output
feedback
process
input
Answer:
process
hope it helps
thanks for the points
Which of the following is a result of reduced levels of red blood cells and elevated levels of white blood cells in the body?
Efficiency of oxygen transport is reduced due to an infection.
Efficiency of nutrient transport is reduced due to an infection.
Efficiency of oxygen transport is reduced, but not due to an infection.
Efficiency of nutrient transport is reduced, but not due to an infection.
Answer:
the white cell is the air in youre body and the red cell are the blood in youre body
Explanation:
Answer:
Efficiency of oxygen transport is reduced due to an infection.
Explanation: got it right on flvs
If Earth was like a hard-boiled egg, which part of Earth would the egg shell represent and why?
A. Crust, as its depth is up to 3,000 kilometers
B. Mantle, as its depth is up to 3,000 kilometers
C. Mantle, as its depth is less than 100 kilometers
D. Crust, as its depth is less than 100 kilometers
How does carbon from corn end up in human hair?
So if we eat a particular kind of food, and it has a particular kind of carbon in it, that's recorded in us, in our tissues, in our hair, in our fingernails, in the muscles
Which sphere includes rocks ana minerals
Answer:
Geosphere includes rocks and minerals.
Explanation:
I need the answer to this ASAP please!!!!!
Answer:
B.
Nerve cells can carry signals and connect to all parts of the body.
How do the flowing layers of the Earth interact?
They interact by the core transferring energy by conduction to the upper mantle
assisting in the softening of the rock layer which leads to convection.
They interact by the core transferring energy by convection to the upper mantle
assisting in the softening of the rock layer which leads to conduction.
They interact by the core transferring energy by precipitation to the upper mantle
assisting in the softening of the rock layer which leads to evaporation.
They interact by the upper mantle transferring energy by conduction to the core
assisting in the softening of the rock layer which leads to radiation.
Answer:
They interact by the upper mantle transferring energy by conduction to the core assisting in the softening of the rock layer which leads to radiation.
Explanation:
Convection currents coming from the core and mantel are believed to the main cause of the interaction. As these currents travel up and down the curst and mantle boundary and this creates the plates to move freely forming a conveyor belt. The core of the earth creates this convective current to rise up due to the heat and pressure. The hot molten rocks in the mantle eventually cool and the cycle of rising and sinking takes place.how to get big and all thing
Answer:
hih
Explanation:
what that means what ur talking bout
Answer:
What I'm confused
Can i have some help please
Answer:
genotype:-
25% (DD)
50% (Dd)
25% (dd)
phenotypes:-
50%
50%
Define permafrost in you own words!
Answer:
Permafrost is ground that continuously remains below 0°C for two or more years, located on land or under the ocean. Permafrost does not have to be the first layer that is on the ground. It can be from an inch to several miles deep under the Earth's surface.
Explanation:
Answer: pick one
try this,
Permafrost is a permanently frozen layer on or under Earth's surface. It consists of soil, gravel, and sand, usually bound together by ice. ... Permafrost covers approximately 22.8 million square kilometers (about 8.8 million square miles) in Earth's Northern Hemisphere. Frozen ground is not always the same as permafrost.
or try this,
Permafrost is soil, rock or sediment that is frozen for more than two consecutive years. In areas not overlain by ice, it exists beneath a layer of soil, rock or sediment, which freezes and thaws annually and is called the "active layer".
Explanation:
hope it helps, please mark me brainliest, please
What is the relationship between respiration and cellular respiration?
What is the difference between a partial blockage and an obstruction blockage?
What is the first aid for choking?
respiration is when you breath and cellular respiration involves taking the cells from when you breathe and turning it into chemical energy.
partial blockage can be cause by cancer within the bowel area or inflammation within the bowel area. obstruction blockage is caused by tissue compressed in the gut.
for first aid, you turn the individual on their back and deliver 5 back slaps between their shoulder blades, then do 5 chest thrusts.
The white blood cells can be compared to the army and soldiers of our country. Explain the reason in about 3-4 lines.
Answer:
Please Mark as Brainliest
Explanation:
The white blood cells provide immunity to our body. They help in fighting against diseases, infections, allergies, and foreign particles. These cells keep our bodies safe and healthy, much like the soldiers of a nation.
What two variables must you know in order to
calculate the average speed of a moving object?
А
direction and time traveled
B
total time and total distance
C
slowest speed and fastest speed
D
fastest speed and total distance
B. total time and total distance
what color eye is this?
Answer:
haze/green
Explanation:
If thats ur eye it is SO pretty
lol mine r brown
Where is starch stored in the chloroplast?
Answer:
Stroma
Explanation:
Starch is stored in the stroma of chloroplast and in the cytoplasm of leaves.
every rock has been every type of rock
true or false
Answer:
false
Explanation:
because not every rock has granite in it