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drek231 [11]
4 years ago
13

Among the cells most basic needs is/are __________ and the oxygen with which to burn it/them.

Biology
1 answer:
Citrus2011 [14]4 years ago
6 0
The answer would be ENERGY
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Answer:

Sound

Explanation:

A mechanical wave can not transmit its energy vacuum.

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2 years ago
A lizard with a striped tail and a normal head is crossed with one having a normal tail and a spotted head. All the F 1 progeny
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Answer:

9 normal : 3 striped : 3 spotted: 1 striped and spotted.

Explanation:

The F1 progeny contains no spots or stripes and are considered as normal, it means normal tail and normal head are dominant on their alternative traits. So, it means that the F1 progeny are heterozygous in nature for both of the traits.

The cross between 2 F1 progeny is dihybrid cross of lizards (heterozygous) which will produce offspring in 9:3:3:1 ratio, where 9 are normal, 3 striped which are dominant in the one character, 3 spotted which are dominant in other, and 1 will be stripped and spotted which is recessive in nature.

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movement caused by quakes, global warming, and human partiucipation

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3 years ago
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The answer is true.
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Breastfeeding can be used as birth control (any method used to prevent pregnancy) but under special conditions: baby must be 6 months old or younger, the infant must be fully breastfed (eating only breast milk), the mother must not have a period (amenorrhea).</span>
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