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Ber [7]
2 years ago
8

Tar contained in tobacco smoke is harmful to the lungs because it

Biology
1 answer:
Oksana_A [137]2 years ago
5 0
The answer is = a stimulant
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How does DNA in cells determine an organism? ’s complex traits?
hodyreva [135]
DNA<span> contains codes for proteins, which are necessary for the growth and functioning of an </span>organism<span>. </span>DNA<span> separates into long single strands that make up each part of an</span>organism<span>. </span>DNA<span> produces the energy an </span>organism<span> needs in order to grow. </span>DNA<span> folds into the nucleus of each of the </span>cells<span> of an </span>organism<span>.</span>
5 0
2 years ago
Which season is occurring in the southern hemisphere when earths northern hemisphere is tilted toward the sun?
Ksju [112]
The southern hemisphere would be experiencing winter :)

5 0
3 years ago
Stronger earthquakes closer to the surface and gas<br> explosions
Nana76 [90]

Answer:

Aftershocks are sometimes just as hazardous as the main quake itself. In fact, aftershocks may be so strong that they're stronger than the main quake. ... While foreshocks occur around the same time of the main quake, aftershocks may not occur until days or weeks later! The point at the Earth's surface directly above the focus is called the epicenter of the earthquake. At the epicenter, the strongest shaking occurs during an earthquake.

Hope this helps, have a great day/night, and stay safe!

4 0
3 years ago
The trait of medium-sized leaves in iris is determined by the genetic condition PP′. Plants with large leaves are PP, whereas pl
dsp73

Answer:

20 large size leaves plants

40 medium sized leaves plants

20 small sized leaves.

Explanation:

PP = large leaves

P'P' = small leaves

PP' = medium leaves

PP' was crossed with another PP' plant:

PP'   x   PP'

progeny = PP, 2PP', and P'P'

PP = 1/4  x 80 = 20 large size leaves plants

PP' = 1/2 x 80 = 40 medium sized leaves plants

P'P' = 1/4 x 80 = 20 small sized leaves.

<em>Hence the phenotypes would be:</em>

<em>20 large size leaves plants</em>

<em>40 medium sized leaves plants</em>

<em>20 small sized leaves.</em>

6 0
3 years ago
A dominant allele is often covered up or masked by the recessive allele. True or false?
swat32

Answer:

Explanation:In a heterozygote, the allele which masks the other is referred to as dominant, while the allele that is masked is referred to as recessive.

7 0
3 years ago
Read 2 more answers
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