Select the reasons that farmers typically only specialize in one breed. familiarity with the breed
personal preference
business efficiency
homogeneous housing
time demands
lack of training
standardized food supplies

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

Abody cell has been growing and at synthesis proteins. in the nucleus of this body cell, dna replication is taking place. and a copy of the cells genetic material is copied. which of the following is the best conclusion you can make about the life cycle of this cell ? a) the cell is ready to undergo mitosis. and a chemical signal will send the cell to prophase b)the cell is undergoing meiosis and will cross over the genetic material next c)the cell is in the s phase of interphase and will move next to the g2 phase d) the cell is in the g2 phase of the interphase and is ready to begin diving

Substances that can pass through cell membranes by diffusion include a. na ions. b. proteins c. glucose. d. oxygen.