Remember that the number of electrons are equal to the number of protons, and to find the number of protons you have to look and see the atomic mass of the atom is equal to the number of protons, and to find the number of neutrons you have too subtract the atomic mass to the atomic number.
Example:
You want to find out how many protons, neutrons, and electrons are in Platinum:
- Atomic number is equal to the number of protons:
- So platinum has 78 protons and electrons.
- Subtract atomic mass to atomic number:
(forgetting about the decimals)
So platinum has "78 protons, and electrons, and has 117 neutrons."
Hope this helps!
Im going to guess either c or d
Answer:
I think it might be red an white blood cells
Explanation:
red an white blood cells play a important role in transporting the proteins, minerals an oxygen all over the body through the blood vessels this is connected to the heart.
Answer:
The best evidence for the three domain system is
Sensitivity to Antibiotics
Explanation:
The three domains of life includes :
Archaea - oldest known domain, ancient forms of bacteria.
Bacteria - all other bacteria that are not included in the Archaea domain.
Eukarya - all the organisms that are eukaryotic or contain membrane-bound organelles and nuclei.
Types of evidences for the three domain system are:
1) differences in the sequences of nucleotides in the cell's robosomal RNAs (rRNA)
2) the cells's membrane lipid structure.
3) its sensitivity to antibiotics.
Answer:
<h2>C, RANGLELAND</h2>
Explanation:
Rangeland can be described as a land which consists of grasses, shrubs, woods, wetlands etc which are ideal for the grazing of domestic and wetland animals. Hence, a rangeland is used for grazing livestock. Hence, option C is correct.
Other options, like option D, is not correct because an urban land supports city life. It is not ideal for the growing of crops as it contains pollution of the city.
