Answer:
a: metaphase
Explanation:
the chromosomes are aligned at the metaphase plate
Answer:
Some major functions of skeleton are below
Explanation:
Support and shape
bones support soft tissues and serve as attachment site for most muscles and provide shape to the body
Protection
Bones protect critical internal organs, such as brain, spinal cord, heart and lungs.
Movement
skeletal muscles attached with the bones help in moving the body
Mineral homeostasis
Bones serve as store for calcium phosphorus potassium sodium. Through negative feed back mechanisms bones can release and take up minerals to maintain homeostasis
Blood cell production
red and white blood cells are produced in bone marrow, a connective tissue found within bones
Answer: prokaryotic cells have no nucleus, no organelles and a small amount of DNA. Eukaryotic cells do have a nucleus, along with many organelles, and more DNA.
Explanation:
A double circulatory system is composed of a <u>PULMONARY </u>circuit and a(n) <u>SYSTEMIC </u>circuit
Pulmonary circulation means where blood goes to lungs to get purified and exchange gases, i.e. CO2 is released into the lungs and oxygen is taken into the blood.
Systemic circulation is between heart and entire body, where oxygen is supplied to every cell of the body and CO2 is absorbed.
