Calcium oxide is an ionic, chemical compound created by equal transfer of atoms. As described, calcium loses two electrons, giving it a +2 charge and an atom of oxygen picks up two electrons, giving it a –2 charge. This event is called ionic bonding where there’s a complete transfer of valence electrons between atoms. Usually, metals are the ones donating their valence electron (e.g. calcium) and it’s the non-metals who accepts the donated electrons (e.g. oxygen).
Answer: The correct answer is because it never lived.
Abiotic components are the non living components of the ecosystem. This means that these components do not have life in them. Example- soil, air, water, temperature, and humidity
Water is a non living component of the ecosystem as it never lived. It is a part of the biosphere.
Thus, the correct answer is- water is considered abiotic because it never lived.
Answer:
1. While there is no cure for Alzheimer's, there are medications to help temporarily improve symptoms.
2. The most recent research is/was the research on the drug sargramostim, (AKA Leukine), It's thought that the drug may stimulate the immune system to protect the brain from harmful proteins.
hope this helps :)
Answer:
DNA is positively charged and is therefore attracted to the negatively charged end of the gel
Answer:
nucleotides
Explanation:
the DNA is actually made of repeating units called nucleotides
