A species of bird enters a desert environment, and is getting its water by pecking into the stems of cacti. Cacti with which of the following characteristics will most likely survive the damage from these birds? A
numerous spines

B
deep roots

C
a long stem

D
numerous branches

Ectocarpene is a volatile, sperm cell-attracting material released by the eggs of the seaweed ectocarpus siliculosus. its constitution is all the double bonds are cis, and the absolute configuration of the chirality center is s. draw a stereochemically accurate representation of ectocarpene.

How does a lytic infection differ from a lysogenic infection?

Across of blue x blue (both heterozygous) would result in