Think it is c but I could be wrong have not taken bio in a while
A tetrad consists of 2 homologous chromosomes each of which is made up of 2 sister chromatids
My opinion is that EVEN IF there is anything that humans can do to save our species,
we will argue, debate, play politics, bask in absurd conspiracy theories, fritter around,
dilly dally, and totally ignore the urgency before us, until a time when nothing we're able
to do can any longer have any effect. And that's my opinion.
Fossil fuel + oxygen gas -------> carbon dioxide + water + heat
Answer:
The first line of defense involves skin.