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blondinia [14]
3 years ago
13

Humans need certain substances to make new cells and repair their tissues. Humans acquire these substances by eating nutritious

foods. Which of the following characteristics of life do the above statements best support? A. Living organisms respond to changes in their external environments. B. Living organisms use matter and energy for their life processes. C. Living organisms regulate their internal environments. D. Living organisms must be able to reproduce to promote their species' survival.
Biology
2 answers:
mrs_skeptik [129]3 years ago
6 0

Answer:

B.

Explanation:

Arturiano [62]3 years ago
5 0

Answer:

B. Living organisms use matter and energy for their life processes

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im using random letters but A^B  A^C

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In the world of purple people eaters, one eye (E) and one horn (H) are dominant traits. Purple people eaters
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Answer:

3

Explanation:

Male ; EeHh

Female ; EeHh

Then,

possible gametes for each = EH / Eh / eH / eh

where,

                            EH                    Eh                   eH                    eh

EH                      EEHH               EEHh              EeHH               EeHh

                     <em>   One eye            One eye         One eye          One eye</em>

<em>                         One horn          One horn        One horn        One horn</em>

<em />

Eh                      EEHh                 EEhh               EeHh                Eehh

                       <em>One eye              </em><em>One eye</em><em>         One eye          </em><em>One eye</em><em> </em>

                        <em>One horn            </em><em>Two horn</em><em>       One horn         </em><em>Two horn</em>

eH                     EeHH                  EeHh              eeHH                eeHh

                        <em>One eye             One eye         </em><u><em>Two eye</em></u><em>          </em><u><em>Two eye </em></u>

                        <em>One horn            One horn        </em><u><em>One horn</em></u><em>        </em><u><em>One horn</em></u><em> </em>

eh                     EeHh                   Eehh                eeHh                eehh

                      <em>One eye              </em><em> One eye    </em><em>      </em><u><em>Two eye</em></u><em>          </em><u><em> Two eye </em></u>

<em>                       One horn              </em><em>Two horn </em><em>       </em><u><em>One horn</em></u><em>         </em><u><em>Two horn </em></u>

<u><em /></u>

Therefore,

One eye, one horn:One eye, two horn:<u>Two eye, one horn</u>:Two eye,two horn

is,

9 : 3 : <em><u>3 </u></em>: 1

This ration proves that the above working is correct and is dihybrid cross.

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