Which of the following organisms is not in the phylum echinodermata?
a. brittle star
b. lancelet
c. sea star
d. sand dollar

This is due ! matching pairs of chromosomes from parents are called a. homologous chromosomes b. heterozygous chromosomes c. herterogenes d. homologous bands

As a result of wildfires, in grasslands. a) tree growth increases b) grass growth increases c) soil quality decreases d) invertebrate variety decreases

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities