Urethra as Nephrons form Kidney and Urethra isn't a part of Kidney.
Answer:
DNA is in chromosomes in the nuclear envelope
Explanation:
Cell membrane is a thin line.it controls the movement of materials into and out of the cell. it is partially permeable,that is,it allows only certain materials to pass through.
Answer:
pacemaker cells.
Explanation:
Cardiac muscle tissue works to keep your heart pumping through involuntary movements. This is one feature that differentiates it from skeletal muscle tissue, which you can control. It does this through specialized cells called pacemaker cells.
Use a sandbag to hold it in place