Sachin was suffering from chickenpox doctor advised him to stay at home his friend persuades him to go for class picnic along with him and have fun but sachin refuses and stay at home what value of sachin is reflected in not going for picnic

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

cell division is not regulated in tumor cells.