Which of the following areas indicates the occipital lobe in the diagram below? region d region b region c region a

Where do homologous chromosomes exchange genetic material through crossing over?               a.  chlorophyll    b.  centrosomes    c.  centromeres    d.  chiasma

Draw the structure of dna nucleotide with adenine as nitrogenous base

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels