C) blood, blood vessels, and heart.
Answer:
true
Explanation:
Embryonic stem cells.
These are pluripotent (ploo-RIP-uh-tunt) stem cells, meaning they can divide into more stem cells or can become any type of cell in the body. This versatility allows embryonic stem cells to be used to regenerate or repair diseased tissue and organs.
Answer:
This is the basic idea behind his theory of Natural selection
Explanation:
The theory of Natural selection was demonstrate in Darwin's book known as 'Origin of species' which was written in 1859
In this book, the process of change of an organism over time is described and also mentioned about their physical as well as behavioral changes.
Natural selection means the survival and reproduction of individuals by changing the phenotypes.
Natural selection is a process by which the nature accepts those organisms that can change their phenotype in order to survive with changing environment and eliminate those phenotypes that are not favorable for their survival.
Answer: protein conformation has been destroyed due to heat
Explanation:
Proteins are made up of several polypeptide chains linked by hydrogen bonds, and peptide bonds among their amino acids subunits.
At elevated temperatures, the hydrogen and peptide bonds are cleaved resulting in change in conformation of the protein. At this point, cooling DOES NOT renature the protein, as its bonds have been broken.
