Answer:
Until recently, most neuroscientists thought we were born with all the ... Why did these bird brains add neurons at such a critical time in ... The central nervous system (which includes the brain and spinal cord) is made ... An early progenitor cell does not have the potential of a stem cell to make many different ...
Explanation:
Answer:
Major structural differences between a plant and an animal cell include: Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.
Answer:
C. He forgot to add primers.
Explanation:
The major components of a PCR include:
- A sample DNA which is the DNA that needs to be amplified.
- A DNA polymerase, an enzyme that synthesizes new DNA strands from the sample DNA.
- A primer which represents the starting sequence for the new strand of DNA to be synthesized.
- Free nucleotides in form of Deoxynucleoside triphosphates (dNTPs)
<em>The graduate student forgot to add primers which are essential as a starting point on which the synthesis of new DNA strand is based. DNA ligase is not needed for PCR, but during DNA replication.</em>
The correct option is C.
<h2>Weathering and erosion</h2>
Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Water, acids, salt, plants, animals, and changes in temperature are all agents of weathering and erosion
Answer:
according to khan academy,"Bond enthalpy and enthalpy of reaction help us understand how a chemical system uses energy during reactions. The bond enthalpy describes how much energy is needed to break or form a bond, and it is also a measure of bond strength"