Embryonic stem cells can be grown relatively easily in culture. Adult stem cells are rare in mature tissues, so isolating these cells from an adult tissue is challenging, and methods to expand their numbers in cell culture<span> have not yet been worked out. This is an important distinction, as large numbers of cells are needed for stem cell replacement therapies.</span>
Stratified squamous keratinized epithelium
To survive<span> the freezing </span>winter<span>, </span>animals<span> need to do something to keep warm. ... To help them </span>survive<span>, organisms </span>have adapted<span> to their environments in ... The big sleep, also called hibernation, helps </span>animals survive<span> during the cold </span>winters<span>.</span>
Answer:
Explanation:
Cell division is the process whereby a parent cell finish up into two daughter cells. they are two types of cell division
mitosis is a process whereby a parent cell finish up and produces two daughter cells having the same number of chromosomes
stages of mitosis
- Interphase: In this stage , nothing really happens in the cell, resting stage of the cell
- prophase: in this stage , the chromatins condenses into chromosomes
, the nuclear membrane disappear and the spindle fibre radiates
- metaphase: in this stage , the chromosomes align in the middle and meet at the equator
- anaphase: the chromosomes split at the centromere and move to the opposite poles
- telophase: the cell splits, and the spindle fibre disappears
- cytokinesis: the cell produces two daughter cells
1). The human body uses three types of molecules to yield the necessary energy to drive ATP synthesis: fats, proteins, and carbohydrates. Mitochondria are the main site for ATP synthesis in mammals, although some ATP is also synthesized in the cytoplasm.