Which 2 features help orchids survive
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Ответ:
Orchids have some unique features which help them in the evolutionary race. They produce masses of pollen (which improves the chances of pollination), very light seeds (which makes them easier to spread) and can grow on other plants using them to support their own growth.
Ответ:
Explanation: 1. If a baby is male, it got more DNA from its mother because the X chromosome is larger than the Y chromosome.
2. Meiosis results in a double cell division producing four haploid cells.
3. during meiosis, some DNA is exchanged between the single strands (recombination).
4,5. The haploid gametes have different combinations of the parental DNA, ending with a zygote that includes two effectively unique gene combinations