If one parakeet is heterozygous, that means it has one dominant gene and one recessive gene (Rr). If the other is homozygous for white feathers, then it has two recessive genes (rr). Crossing these two in a punnet square gives you 50%.
Answer:
Thermal energy
Explanation:
Boiling water uses thermal energy
Active transport would be required because in order to move across a membrane against the concentration gradient, energy is needed. Active transport uses energy to help molecules/ ions achieve this movement.<span>
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Answer:
A. The New Horizon space probe traveled about 3 billion miles, which is 32 AU (Astronomical units)
