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pychu [463]
3 years ago
14

If someone tells you they have a sample of niobium-90, can you tell how many neutrons are in the nucleus

Biology
1 answer:
OLga [1]3 years ago
5 0
Atomic number of nibium= 41
so neutron numbers= 90-41 = 49
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If there were more weeds what would happen to the rabbits?
EleoNora [17]
Rabbits tend to wander a lot and if it runs into weed or grass... well it eats it. eating weed or grass allows rabbits to gain more energy. if the supplies of grass and or weed increases the population of rabbits would increase too. the more they eat the more energy the have and the more energy the have the more they reproduce.
more power = more reproduction
more reproduction = increase in population
so all in all the more weed, the better it is for rabbits since the amount of food increases
7 0
4 years ago
The lac operon in E.coli regulates genes that code for enzymes required for breakdown of lactose. The lac operon is____ operon t
user100 [1]

Ans.

Lac (lactose) operon in a type of bacterial operon, which shows a cluster of genes that are regulated by a single promoter. It is composed of an operator, promoter, a terminator, and three structural genes (lacA, lacY, and lacZ), which are responsible for the transport and breakdown of lactose.

The lac operon is an inducible operon as it gets activated in the presence of lactose and expressed its functional genes in the form of proteins (or enzymes) for lactose metabolism.  

Thus, the correct answer to be fill in first blank is 'inducible' and in second blank is 'lactose.'

8 0
3 years ago
Read 2 more answers
How does a law differ from a theory?
gizmo_the_mogwai [7]

<u>Answer:</u>

<em>A law is a statement of fact but a theory is an explanation. </em>

<u>Explanation:</u>

<em>A law is in general a universally accepted fact.</em> It remains true and the same in any part of the world it takes several years of experimentation to develop a law.  

<em>A law is a statement that cannot be challenged at the present point of time with all its technological advancements.</em> A theory is different from a law. It is an explanation of facts.  

<em>Most acceptable one among several explanations becomes a theory. A theory doesn’t have a universal nature  like that of a fact.  </em>

4 0
4 years ago
Biology, the study of life, is a particularly exciting area of science because it is a point of convergence for information and
Bond [772]

Answer:

1. Cells are composed of chemicals and both the structure and function of cells are regulated by the basic principles of chemistry. true

2. Scientists have successfully sequenced the entire genome of humans but have not yet sequenced the entire genome of any other species. false

3. Living systems are the most complex chemical systems on earth. true

4. Living systems are governed by the same principles of chemistry and physics that govern non-living systems. true

5. Living organisms contain unique chemical elements which are not found in non-living systems. false

6. An input of energy is required to maintain the complexity of living systems. true

7. The energy conversions that take place in living systems are governed by the same laws of thermodynamics that govern non-living systems. true

Explanation:

Cells are the basic unit of life which differentiate a living thing from a non- living thing. Although a living system, is made of the same chemical elements from which a non-living t=might be made, yet they are different from the non-living things as living things carry out the seven basic principles of live.

All living things carry genetic material from which their genome is made. Scientists have currently been able to sequence the genome of humans as well as many other organisms.

5 0
3 years ago
Which of the following senses is most closely related to balance?
polet [3.4K]
<span>C. Hearing
</span>
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These sound waves are then transduced when it reaches the cochlea where hair-like structures interprets the sensory information and is relayed to the brain.</span>
6 0
4 years ago
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