howdy.
when I have my ADD moments, I like to take a moment to myself to try and 'calm' them. Maybe scribble some random stuff, write random stuff, and sometimes that calms down. and if it's real bad I like to cheat sometimes. what are you failing in, if you don't mind me asking?
Answer:
B.soil that is frozen solid all year
C.summer thaws combined with frozen permafrost
D.the overflow of a large lake each summer
Well C or A would work because both are polite so yeah
Answer:
Signposts that determine the fate of cells.
Explanation:
Embryos for humans and other animals often look alike at certain developmental stages because they share ancient genes. This expression means that a more advanced organism, like humans, will resemble less advanced species during it's development stages.