Identify the genotypes of male and female fruit flies, birds and grasshoppers.

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

condenser is used to focus in the light microscope.