Answer:
Explanation:
(in an echinoderm) each of a large number of small flexible hollow appendages protruding through the ambulacra, used either for locomotion or for collecting food and operated by hydraulic pressure within the water-vascular system.
I would say B) 1-3 hours because Bacteria can multiply anywhere between 20 to 30 minutes and if it doubled in size 1-3 hours would be the most reasonable option!
The correct answer is cyanobacteria (ancient cyanobacteria).
The huge concentration of oxygen in the atmosphere is believed to have been initially produced by the actions of ancient cyanobacteria. They are usually observed as symbionts with a number of another group of species, like coral, lichens (fungi), Azolla (pteridophytes), angiosperms, and others.
The atmosphere of oxygen was generated by various cyanobacteria at the time of Proterozoic and Archaean periods.
Answer: The utilization of different resources requires different adaptations, selecting for different traits.
Explanation:
answers to whole quick check
Birds with larger beaks were better able to utilize the large seeds.
DNA analysis shows that their DNA is almost identical with only minor changes.
The diversity in environments on each island provides many opportunities to study how related organisms have adapted over time.
Scientists observe the frequency of the different forms of the gene and how it changes in response to the environment.
