Answer:
When you breathe in oxygen, your diaphragm pushes against itself and pulls downwards. The muscles between the ribs pull upwards. The oxygen gets into the tissues by being helped by red blood cells and has a pigment that collects four oxygen molecules. It forms into a thing known as oxyhaemoglobin and the molecules are taken to other singular cells in the body tissue, releasing its contents.
Answer:
1/4 or 25%
Explanation:
Let us assume that the fruit color trait in the tomato is represented by R and r. The dominant color red would be represented by R while the recessive color yellow would r.
If a true-breeding red fruit tomato (RR) is crossed with a true-breeding yellow fruit tomato (rr), the F1 would be thus:
RR x rr
Rr Rr Rr Rr
Since R is dominant over r, all the F1 offspring would produce red fruits with the genotype Rr.
At F2:
Rr x Rr
RR Rr Rr rr
RR and Rr = red
rr = yellow
<em>Hence, the proportion of the F2 offspring expected to be yellow would be </em><em>1/4</em><em> or</em><em> 25%</em><em>.</em>
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Answer:água e gas carbônico
Explanation :
geralmente utiliza gás carbônico (CO2) e água (H2O) para a produção de matéria orgânica na forma de glicídios, a qual servirá de alimento para o organismo, liberando também gás oxigênio (O2) para a atmosfera no processo.
