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padilas [110]
3 years ago
11

How many americans suffer health disorders each year from smoking tobacco?

Biology
2 answers:
aev [14]3 years ago
6 0
More than 16 million Americans
Marina86 [1]3 years ago
4 0
More than 15-16 million americans which is terrible
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Put in order the steps of the process associated with a course assignment
Fynjy0 [20]

Here is the methodology associated with the process of a course assignment:

1. Faculty member develops assignment and grading rubric.

2. The assignment is posted in the class.  

3. The student reads assignment and rubric.      

4. Student completes the assignment.

5. Student submits the assignment.

6. Faculty reviews submitted assignment and compares to grading rubric.

7.  Faculty grades assignment.

8. Student receives grade and feedback.

8 0
3 years ago
Two independently segregating genes determine kernel color in wheat. Red color results from at least one dominant allele in both
Lera25 [3.4K]

Answer:

a) The expected phenotype of the F1 plants is 100% RrBb, red kernels.

b) The expected phenotypic classes in the F2 are: 9:3:3:1

   9/16 R-B-, 3/16 rrB-, 3/16 R-bb,  1/16 rrbb

   Proportions 9:6:1.

9/16 Red kernel (R-B-), 6/16 Brown kernel (rrB- + R-bb), 1/16 White kernel (rrbb)    

Explanation:

<u>Available data:</u>

  • red kernel: R-B-
  • brown kernel: R-bb or rrB-
  • white kernel: rrbb

1º Cross)  RRBB      x      rrbb

F1)             100% RrBb (red kernels)

2ºCross)   RrBb       x       RrBb

Gametes)  RB                   RB

                  Rb                   Rb

                  rB                    rB

                  rb                    rb

Punnet Square)      RB           Rb         rB         rb

                 RB      RRBB      RRBb     RrBB     RrBb

                 Rb      RRBb      RRbb     RrBB     Rrbb

                 rB       RrBB       RrBb      rrBB      rrBb

                 rb       RrBb       Rrbb       rrBb     rrbb

F2)  Phenotypic classes:

       <em>9/16 R-B-</em>

<em>        3/16 rrB-</em>

<em>        3/16 R-bb</em>

<em>        1/16 rrbb</em>

      Phenotypic proportions:

      <em>9/16 Red kernel (R-B-)</em>

<em>       6/16 Brown kernel (rrB- + R-bb)</em>

<em>       1/16 White kernel (rrbb)         </em>                      

7 0
3 years ago
Why was natural selection an important contribution to the theory of evolution?
natima [27]
<span>The answer is simple :) Natural selection was an important contribution to the theory of evolution because: It explained how evolution works. </span>
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Answer:

Street Drugs, Aspirin, Hallucinogens, Narcotics, Depressants

Explanation:

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Please help me and fast.<br><br><br> The image below represents what concept?
alexira [117]

Answer:

Magnetic Declination

Explanation:

Magnetic declination, or magnetic variation, is the horizontal plane's angle between magnetic north and true north. This angle varies depending on the position on the Earth's surface and changes over time.

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