Biologists suspect that endosymbiosis gave rise to mitochondria before plastids partly because
A) the products of photosynthesis could not be metabolized without mitochondrial enzymes.
B) all eukaryotes have mitochondria (or their remnants), whereas many eukaryotes do not have plastids.
C) mitochondrial DNA is less similar to prokaryotic DNA than is plastid DNA.
D) without mitochondrial CO2 production, photosynthesis could not occur.
E) mitochondrial proteins are synthesized on cytosolic ribosomes, whereas plastids utilize their own ribosomes.
Types of plastids
Because the leg muscles of children with muscular dystrophy are weak, they must perform the Gowers’
mitochondria
Rapid sea level rise
How much the temperature will rise depends on many factors that affect the level of GHG emission
The Nile Delta will be strongly affected by a rise in sea level of 50 cm