ANSWER: Nitrogen, oxygen or gas, dust particles
Hi there!
Generally, most living organisms in the biosphere are affected by smog. in some way or another which includes both C. plants and animals.
Hi there!
For all organisms to survive, they start off with sunlight. That's the main and immediate source of energy to any organism(s).
Sunlight gives warmth and energy and light of course.
Hope this helps!
The yolk sac functions to form blood cells in early development (embryonic phase) for nourishment of the embryo and early fetus. Towards the end of the 1st trimester, the yolk sac disappears and the placenta takes over for the fetus.
The endosymbiotic theory states that the some cellular organelles present inside the Eukaryotic cells were once free-living prokaryotic organisms. The eukaryotic cells ingested these organisms and over time they developed a symbiotic relationship with each other. These organelles include the mitochondria and the chloroplasts. Both these organelles contain their own DNA, and produce energy.
Hence, the answer is 'mitochondria and chloroplasts'.