Poszukaj informacji o dwóch gatunkach ryb polskich wód śródlądowych i dwóch gatunkach ryb bałtyckich, które są chronione. Zwróć uwagę na to, w jakim środowisku żyją – czy potrzebują wody czystej, czy tolerują zanieczyszczoną. Wskaż przyczyny, dla których są chronione.

How many variables are altered in a good experiment? a.1 b.0 c.2 d.3

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. agouti x albino a) 1/2 albino, 1/2 agouti b) all agouti c) 3/4 agouti, 1/4 albino

How do water’s relative densities as a solid and a liquid differ from that of most other substances? water’s solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities. water’s solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities. water’s liquid form is less dense than its solid form, while the opposite is true of most other substances. water’s solid form is less dense than its liquid form, while the opposite is true of most other substances.