Which type of soil is most permeable
a. sand
b. clay
c. loam
d. slit

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

The graph shows the solubility of several different salts in water, across a range of temperatures. according to the graph, which salt can dissolve at a concentration of about 60 g/100 cm3 of water at 40 degrees celsius?

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation