40 a body cell has twice the number of chromosomes than in a gamete
Answer:
The movement of molecules across a membrane without the input of energy is known as passive transport. When energy (ATP) is needed, the movement is known as active transport. Active transport moves molecules against their concentration gradient, from an area of low concentration to an area of high concentration.
Explanation:
hope this helps :D
A. Pre-eclampsia
Pre-eclampsia also
known as pregnancy induced hypersion or toxemia. It is a pathological condition
in pregnancy that is characterized by hypertension, edema and proteinuria.
However, pre-eclampsia is a symptom that is associated with late pregnancy that
encompasses both convulsive and non-convulsive stage.
Answer: The reason why stem cell research is a big field in biology or even the world is because stem cells might be able to treat degenerative conditions as well as answering questions about human development.
