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Ronch [10]
3 years ago
13

Zirconium has an atomic number of 40 and an atomic mass of 91. How many neutrons does it have?

Biology
1 answer:
Natali [406]3 years ago
7 0
Subtract the atomic number from the atomic mass to get the neutrons 
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Suppose that you have some rod-shaped bacteria, and each bacterium is 3 micrometers long. If the bacteria were arranged end to e
Amiraneli [1.4K]

Answer:

Number of bacteria required = 20000

Explanation:

Given -

Size of each bacterium = 3 micrometers long

These bacteria are arranged end to end.

The size of chain to be formed is equal to 6 centimetres

Let us say that in forming a chain of 6 centimetres nearly X number of individual bacterium are required.

hence, number of bacterium required to form 6 centimetres  chain can be represented as

X = \frac{6 * 10000}{3} \\X = 20000

Number of bacteria required = 20000

7 0
3 years ago
Which of the following is not a characteristic of all living organisms? A)energy utilization B)complex yet organized C)capable o
muminat

<em>Lets take a look at all the choices:</em>

A) Energy utilization

All organisms require energy to survive. That question is out for sure!

B) Complex Yet Organized

All living organisms are complex, and if they weren't organized, well, they wouldn't exist or they would have some serious problems!

C) Capable of Self-Reproduction

Simple: Not all organisms are able to reproduce asexually, for example, humans. We do not reproduce asexually. Therefore it is not a characteristic of <u>ALL</u> living organisms

D) Composed of Multiple Cells

No-brainer! All living organisms are composed of multiple cells!!!!!!!!!!!!


Therefore, the answer is C) Capable of Self-Reproduction  


5 0
3 years ago
Evolution is the process by which populations of organisms change over time. How could natural selection lead to evolution?
cupoosta [38]

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3 years ago
Lions,bears,sponges,and jellyfish are all part of the Kingdom of
german

Answer:

They are all part of the Kingdom Animalia

Explanation:

Hope this helps

8 0
3 years ago
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The locations of neural activity, called _____, are interconnected.
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Sensory neurons are the neurons responsible for receiving the information from the environment or the stimuli. This sensory neurons pass the message thru interneurons and then to Central Nervous System (brain and spinal cord) which then sends the signal to the motor neuron. </span>
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