What does an organism's phenotype describe?

the allele combination for a trait
the physical appearance of a trait
the number of alleles on a gene
the number of different traits inherited

The variables for this experiment include mass, volume and the materials in the various balls, as well as their densities. in part iii, you will be investigating the questionable baseball. use the drop-down menus to complete the sentences and identify the independent and dependent variables. in part iii, the independent variable, the one that is intentionally manipulated, is . in part iii, the dependent variable, the one that you measure the response in, is

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?