Answer:
B
Explanation:
Seems like the only "natural" option. (Something not caused by humans).
The left side of the human body is home to many organs like the left kidney<span>, left </span>ovary<span>and </span>adrenal<span> gland, the </span>stomach<span>, </span>spleen<span>, </span>heart<span>, and the Sigmoid </span>colon<span>. Part of the large intestine and the </span>pancreas<span> are also located on the left side of the body, according to MedGuidance.</span>
I would say that the first flower attracts birds etc. t go and drink it's nectar (also I know that humming birds are attracted to red), and thus spread it's pollen. The second flower most likely attracts bees seeing how t is also sweetly scented, but has no nectar. This must mean that it only has pollen, which bees are great at spreading! I have no clue about the last one....Maybe bugs or bats?? Those are the only other pollinators I know of. It could possibly be that there is no pollinator for the third flower and it just tries to keep animals and insects from eating it with it's shape and odor and just relays on the wind for pollination.<span />
Answer:
D
Explanation:
A robin building a nest is not learned or taught like the others. It is just instinctive for robins to build nests.
Answer:
The electron transport system is located in the cell membrane in bacteria, while in eukaryotes it is located in the mitochondrial cristae
Explanation:
Endosymbiosis is the hypothesis that complex organelles ( chloroplast and mitochondria) within the cell came from other living organisms. That is, they originated because one cell ingested another cell. A proof of this is that these organelles have their own genome and their own transcription and translation system. Their genome is independent of the genome within the nucleus of the cell.
The genome of the mitochondria is specialized in the electron transport system. The ingestion of a cell (i.e. bacteria) with such genome could bring evolutionary advantages to the to the ingesting cell over other cells without the mitochondrial genome.