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Gnesinka [82]
4 years ago
7

Are viruses alive? This question is debated among scientists throughout the world. Consider the following passage. Scientific re

searchers discovered agents that behaved like bacteria causing diseases such as rabies and hoof-and-mouth, but were much smaller. At this time it became the general view that viruses were biologically "alive." This perception changed in 1935 when the tobacco mosaic virus was crystallized and scientists demonstrated that the particles lacked any mechanisms necessary for metabolic function. It was determined that viruses consisted of a nucleic acid, DNA or RNA, surrounded by a protein shell and the scientific view changed: viruses are complex biochemical mechanisms but not alive. According to the passage, the MOST IMPORTANT evidence supporting the opinion that viruses are not alive is that they A) cause disease. B) contain DNA or RNA. C) are much smaller than bacteria. D) do not have a cellular structure.
Biology
2 answers:
umka2103 [35]4 years ago
6 0
No, viruses are not alive.

tatuchka [14]4 years ago
5 0

Answer:

im sure it is d like that person said bc i took the test

Explanation:

lol idk why that woman saw (a.b.c.d.) and just said 'nO, vIRusEs ArE NOt AlIvE"

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Solve the equation of mava=mbvb max5.0ml=5.2mlx0.10m
maxonik [38]

Answer:

0.104M

Explanation:

The following equation is given in this question:

mava=mbvb

Where;

ma = molarity of acid (M)

mb = molarity of base (M)

va = volume of acid (ml)

vb = volume of base (ml)

According to this inputted values;

max5.0ml=5.2mlx0.10m

ma = unknown molarity of acid

mb = 0.10M

va = 5.0ml

vb = 5.2ml

Hence, ma x 5.0ml = 5.2ml x 0.10m

5ma = 0.52

ma = 0.52 ÷ 5

ma = 0.104M

8 0
3 years ago
Why is it important that scientific theories can be modified as new information comes to light
nadya68 [22]
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8 0
4 years ago
Sandra is an avid hiker. She’s found three rocks while hiking near the Camden Gorge. Help her identify which type of rocks they
MaRussiya [10]

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Metamorphic rocks are rocks that have been somewhat squished and transformed by heat and pressure. These rocks often have different layers as the rocks go through pressure and are literally look like rocks that have been piled up and then stuck together. The best indicator of this rock being a metamorphic rock is the wavy elongated stripes. The stripes are created from the different rock elements being pressed together over time.

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Sedimentary rocks are rocks that have been formed by different substances that come together due to the different weather conditions. The best indicator of this being a sedimentary rock is how the rock came together and looks like a bunch of shells were glued together.

Rock C = It is an igneous rock that  was formed above  Earth’s surface.

Most igneous rocks have smooth outer layers. These rocks are often made with solidified magma from volcanoes. The best indicator of this being an igneous rock is the indication of it being a solidified piece of magma.

7 0
4 years ago
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melomori [17]

Answer:

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there for all offspring with have wavy hair

Explanation:

8 0
3 years ago
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As electrons move from the higher to the lower energy level, they release energy and GROUND STATE occur.
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