The organism that cerebral ganglia in its head connected to ladder-like arrangements of nerve fibers is
A. flatworms
A flatworm is an invertebrate whose central nervous system or the cerebral ganglia is connected to its body by means of ladder-like nerve cords.
Answer:
B. the health of coral colonies
Explanation:
Answer:
Explanation:
Why alveolar air differs in composition from atmospheric air
Por qué el aire alveolar difiere en composición del aire atmosférico
The composition of air in the atmosphere and in the alveoli differs. ... In addition, alveolar air contains a greater amount of carbon dioxide and less oxygen than atmospheric air. This is no surprise, as gas exchange removes oxygen from and adds carbon dioxide to alveolar air.
Genes B and C with 10% recombination frequency are closest to each other. Because recombination happens at random, the distance between genes that are farther from each other creates higher recombination frequency. A low recombination frequency of 10% means the genes are closest to each other. The short distance between the two genes allow fewer recombination to happen, thus the frequency is low.