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andreev551 [17]
3 years ago
14

WILL GIVE 20 POINTS

Biology
1 answer:
Rudik [331]3 years ago
4 0
It’s C because they took out the letter A from the new strand of DNA. btw deletion means to take away and substitution means to sub in a letter. hope that helped!
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1. What is the difference between primary waves (P-waves) and secondary waves (S-waves)?
Yuliya22 [10]

Answer:

Explanation:

Primary waves travel faster, move in a push-pull pattern, travel through solids, liquids and gases, and cause less damage due to their smaller size. Secondary waves travel slower, move in an up-and-down pattern, travel only through solids, and cause more damage due to their greater size.

4 0
3 years ago
Is most of South America's trees tropical trees?
Oliga [24]
The most common tree in that continent is one that's named "floss silk". It's classified as a tropical tree so we could say that most of South America is covered in tropical trees.

Have a nice day! :)
8 0
3 years ago
7. What is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second?
nydimaria [60]
Kinetic energy = 0.5*M*V^2 

 Q7-
 
0.5*3*(2^2)= 6J

Q8a- 

0.5*2*(2^2)= 4J
0.5*4*(3^2)=18J 
the second ball has more kinetic energy.

Q8b-

at the max height, all the kinetic energy is converted to potential energy, 

gravitational potential energy is = M*g*h

that theory would apply if you wanted to work out the maximum height achieved if the balls were thrown upward by rearranging. But, we are simply working out which ball will have more potential energy so:

First ball:
2kg*9.81(g)*10m = 196.2J

Second ball
4kg*9.81*10m= 392.4J

The second ball has more potential energy 


5 0
3 years ago
Earthworms have a(n) , birds have a(n) , and spiders have a(n) . Endo exo or hydroskeleton these choices are used for all three
dezoksy [38]
<span>The types of skeleton depend on where they are located. Earthworms have hydroskeleton because their rigid bodies are based on water pressure so it's hydro then. Endo is found in animals like birds and also humans who have it inside. Exo is found in spiders because they are bugs and bugs have their skeletons like a shell that covers them.</span>
8 0
3 years ago
Read 2 more answers
Fill in the blanks. A food ____ is a diagram of the energy transfer among organisms in an ecosystem. A food ______ is an illustr
sergey [27]

first answer is chain

second answer is web

5 0
3 years ago
Read 2 more answers
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