How does one cell become a brain cell and another a skin cell?

How would the removal of hydroxyapatite crystals from bone matrix affect the physical properties of a bone? how would the removal of hydroxyapatite crystals from bone matrix affect the physical properties of a bone? the bone would be stronger.

Which is an example of a biotic factor interacting with an abiotic factor? R. An owl living inside the trunk of a tree S. A prairie dog digging a tunnel under the soil T. A frog eating a fly V. A cow grazing on grass

Hn Doe has decided to clone himself. He is sterile. He cannot find anyone to marry him. He wishes to have children. He knows that he will not be able to love a child that is adopted or not connected directly to him biologically.

Why does sexual reproduction speed up evolution? (hint: Think about sexual reproduction in comparison to asexual reproduction)

In cells that virtually never divide, in which phase are they apparently locked?

What is the name of the classification system that we still use today

Compare the roles of the phospholipid bilayer in passive and active transport.

In the polymerase chain reaction (PCR) technique, a heating phase and a cooling phase alternate. An original sample of DNA would have to pass through how many total rounds of heating and cooling before a sample is increased eight times in quantity?

During interphase, replication of the genome DNA occurs during what phase of the cell cycle

Which of the following is not recycle in the biosphere A: energy b:nitrogen c:water d:carbon