Which symbols (genotypes) are involved in the cross to produce the f2 generation of roan cattle?

rr x rr
rr x rr
rr x rr
rr x rr

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems

Which of the following is an effect of the uneven heating of the earth by the sun? a sea breeze a land breeze a convection current all of the above

The sea slug that considered to be a photosyntheesizing animal