Answer:
Artificial selection
Explanation:
The farmer is selecting the most desirable traits and breeding the tomatos to achieve these traits in future generation. A human is artificially altering evolution.
Hydrogen<span>, </span>oxygen<span>, </span>nitrogen<span> and carbon. Does that help?</span>
Answer: It is a fruit
Explanation:
More specifically it is neither root nor stem.
Answer:
E. 6:3:3:2:1:1
Explanation:
Look at the attached picture to see the Punnett square for your problem.
The cross for this is snapdragons who are heterozygous for both traits so the cross would be:
<em>TtRr x TtRr</em>
As you can see in the image, you have the following genotype combinations with the corresponding phenotype combinations:
GENTOTYPE PHENOTYPE NUMBER
TTRR Tall - Red 1
TtRR Tall - Red 2
TTRr Tall - Pink 2
TtRr Tall - Pink 4
TTrr Tall - White 1
Ttrr Tall - White 2
ttRR Short - Red 1
ttRr Short - Pink 2
ttrr Short - White 1
The following phenotype combinations in summary would then be:
Tall - Pink: 6
Tall - Red: 3
Tall - White: 3
Short - Pink: 2
Short - White: 1
Short - Red: 1
So the ratio is 9:3:3:2:1:1
Answer:
Ventilation may increase to compensate for the reduction in gas exchange.
Explanation:
The conducting zone is part of the respiratory system. It includes the organs and structures not directly involved in gas exchange.
It serves as a route for incoming and outgoing air and filtering debris and pathogens from the incoming air.
Blocking the structures of the conducting zone would prevent delivery of air to and from the lungs impairing gas exchange.
In order to compensate for the reduction in gas exchange in the respiratory system, ventilation will increase