Answer:B
Explanation:
The last pair are sex chromosomes. Different pair is XY which is a male chromosome. Same pair is XX which is Female
Vascular tissue<span> is a complex conducting </span>tissue<span>, formed of more than one cell type, found in </span>vascular plants<span>. The primary components of </span>vascular tissue<span> are the xylem and phloem.</span>
The answer is <span>C) crossing over.
</span>The crossover of chromosomes is the exchange of genetic material between homologous chromosomes. If it is known that homologous chromosomes are present only in the meiosis I, it is expected that crossover is occuring meiosis I.<span> Homologous chromosomes pair up in the prophase. Therefore, meiosis prophase I is the phase in which chromosomal crossover occurs. Chromosomal crossover is process that </span>helps make meiotic cells genetically <span>different.</span>
When people used stone tools,
The in-between period of time when the first man appeared and when man developed a writing system. Or the period of time before man became literate.
Answer:
The answer is I ,II and III
