The exchange of genetic materials between homologous chromosomes is called a. synapsis

b. chiasmata

c. crossing over

d. cytokinesis

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The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons

In which ways are mercury and venus similar?

Forensic scientists think they know the identity of a skeleton. what rule should they use to select a relative whose dna could be used to try to confirm the identity?