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irga5000 [103]
3 years ago
14

Evolution is often described as a slow, unobservable process. However, viruses continue to evolve rapidly. What best explains ho

w the influenza virus evolves rapidly? A) Influenza viruses recombine with more pathogenic bacteria to produce new diseases. B) Influenza viruses target only cells that are resistant to detection by the immune system. C) Influenza viruses with mutations to evade host immune systems replicate more frequently than those that without the mutations. D) Influenza viruses combine with the human genome to silence genes of the immune system that can target influenza-infected cells.
Physics
1 answer:
mel-nik [20]3 years ago
5 0

Answer:

c)

Explanation: i just answered it and it was correct.

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A student looks at ocean waves coming into the beach. An ocean wave with more energy will A) have a greater height. B) have a gr
attashe74 [19]

It would be A: Have a greater height.


The higher the wave the higher the energy!

3 0
3 years ago
Read 2 more answers
Match each term with its best description.
Oxana [17]
The answers are:
1. Compaction - grains move closer together.
2. Foliation - parallel alignment of platy grains.
3. Recrystallization - grains take on a larger size.
4. Burial metamorphism - when a rock changes because of surrounding pressure. 

Compaction produce rocks that have a tighter grain arrangement due to heat and pressure the rock undergoes. This process reduces the size of the rock.
 
Foliation occurs when pressure is put on one side of the grains more than any other direction. This creates platy structured rocks, which align under pressure. 

Recrystallization is a process where the chemical composition  a rock is changed. The mineral grains that are produced in this process are larger than the original grains.

Burial metamorphism occurs when rocks get buried deeper and deeper. They change due to the pressure from the overlying layers.
8 0
4 years ago
Read 2 more answers
Let's practice calculating the frictional force of a skier on old "woody" skis and wet snow. The skier has a mass of 58 kg. The
kicyunya [14]

Answer:

Kinetic frictional force will be equal to 56.84 N

Explanation:

We have given mass of the skier m = 58 kg

Acceleration due to gravity g=9.8m/sec^2

Coefficient of kinetic friction \mu _k=0.1

We have to find the kinetic frictional force

Kinetic frictional force is given by

F_K=\mu _Kmg=0.1\times 58\times 9.8=56.84N

So kinetic frictional force will be equal to 56.84 N

8 0
4 years ago
A 90.00-kg hockey goalie, at rest in front of the goal, stops a puck (m = 0.16 kg) that is traveling at 30.00 m/s. at what speed
Ivahew [28]
<span>5.3 cm/s This is a matter of conservation of momentum. Since there's no mention of the puck rebounding, I will consider this to be a totally non-elastic collision. So, let's determine the starting momentum of the system. Goalie is at rest, so his momentum is 0. Puck is moving at 30.00 m/s with a mass of 0.16 kg, so: 30.00 m/s * 0.16 kg = 4.8 kg*m/s So the starting momentum is 4.8 kg*m/s moving towards the goal. After the collision, the puck and goalie will have the same momentum. So figure out the mass of the new system: 90.00 kg + 0.16 kg = 90.16 kg And divide the system momentum by the system mass: 4.8 kg*m/s / 90.16 kg = 0.053238687 m/s Finally, round to the least precise datum, so the result to 2 significant figures is 0.053 m/s, or 5.3 cm/s.</span>
6 0
4 years ago
Which series of energy transfers happens when light from the sun is used to power a light bulb?
sergij07 [2.7K]

Answer:

b. Light ➪ mechanical ➪ electrical

6 0
3 years ago
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