The following events occur during either mitosis or meiosis or in both. Which only occurs in meiosis?
A nuclear envelope breaks down
B condensation of DNA
C pairing up of homologous chromosomes
D centromeres separate

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

Asea turtle has washed up on a remote section of a beach. this known as a stranding occurs when a dead,sick or injured sea turtle washed up on the shoreline. which statment best explain why stranding should be reported immediately to local authorities

Below are the three main organs that make up the plant body. what is the main function of the structure that is identified as b in the picture above? it anchors the plant.it produces food.it absorbs nutrients.it supports the plan