the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group. sodium i think.
Answer:
b, the definition of an ion is a charged atom or molecule
Answer:
the temprature
Explanation:
the season are always opposite in each hemisphere the rotational process causes the sun to be higher in the sky in the winter and lower in the summer
During meiosis crossing over occurs at the pachytene stage, when homologous chromosomes are completely paired. At diplotene, when homologs separate, the sites of crossing over become visible as chiasmata, which hold the two homologs of a bivalent tighter until segregation at anaphase.