Answer:
smooth muscle
Explanation:
Smooth muscles are found on the walls of alimentary canal, blood vessels and tubular visceral organs e.g., urino-genital system and respiratory tract. The cells that make up the smooth muscles are spindle-shaped each with a single nucleus that is centrally located.
They contain myofibrils enclosed by a plasma membrane. They are capable of slow involuntary contractions. Observed under the microscope, the cells lack cross striations hence referred to as unstriated muscle. They contract and fatigue slowly.
Answer: gastrula, archenteron, blastospore
Explanation:
a) Gastrulation is a dramatic reorganization of the hollow blastula into a two-layered or three-layered embryo called a gastrula.
b) Invagination of cells into the blastocoel forms a tube called the archenteron.
c) The open end of the archenteron is called the blastospore..
Answer:
It would be about <em>a convenient store full</em>
Hox genes are: Hoxd9,10,11,12 and 13. Hox genes are responsible for limb bud formation. Hoxd9 influences thumb, Hoxd9 and 10 index fingers and so on.
Hoxd10 has ectopic effect on the development of the mouse limb bud index finger. As a consequence index finger in formed in place of thumb.
So the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set
