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Vilka [71]
3 years ago
9

____ means "wing without tooth.

Biology
1 answer:
Nimfa-mama [501]3 years ago
8 0
What are your choices? Pteranodon means wing without tooth.
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The bones in the wings of a bat are similar to the bones in the flipper of the whale. This information suggests that bats and wh
cricket20 [7]
Bone structure!

Hope this helps! : )
4 0
2 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
Mike works in the metals industry. Which type of coal should he use as a fuel source?
Sonbull [250]

Answer:

B. bituminous

Explanation:

Bituminous coal is an organic sedimentary rock produced by compression of peat bog material by diagenesis and submetamorphics.

Bituminous coal has low moisture and high carbon content and hence used for the production of steel and cement, coke production an electricity generation.

Coking coal is a type of Bituminous coal are best used as fuel dource in metal industry having very narrow range of volatility and plasticity. Volatility is maintained by smelters  to optimize the ease of burn rate,  ignition, and energy output of the coal as this determines the burn rate of the coal.

Hence, the correct option is B. bituminous.

8 0
2 years ago
What is human diversity
qwelly [4]
Human diversity is a variety between the people, including age, <span>race, nationality, culture, ethnicity, gender, class, disability, sexual orientation, religion.</span>
7 0
2 years ago
Which of these is a benefit of the endangered species act?
Helga [31]

Answer: Can restore balance to ecosystems.

4 0
3 years ago
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