What is the definition of an adaptive feature and why is it important? (try to use the word 'fitness' in your answer.)

The graph shows the solubility of several different salts in water, across a range of temperatures. according to the graph, which salt can dissolve at a concentration of about 60 g/100 cm3 of water at 40 degrees celsius?

How many chromosomes are in a gold fish?

Write a paragraph at least 5 sentences “why all vaccinations should be mandatory”