A cactus can either have long needles () or short needles (). A cactus grower crosses two cacti. The cross is shown in the Punnett square below. What is the phenotype ratio for this cross?
A. One long, three short
OB. Two long, two short
OC. Three long, one short
OD. Four long, zero short

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

What is the average speed of a car that traveled 300.0 miles in 5.5 hours

Amarine ecologist has constructed the conceptual model shown in the diagram. what predictions can be made from using this model? where the tertiary consumers get their energy how often primary producers are able to reproduce when bacteria and fungi initiate the process of decomposition whether other secondary consumers are present