Answer:
hemoglobin, hemoglobin carries oxygen in the blood and it is made up of four subunits, two each of the α and β types.
Explanation:
Answer:
open clusters are A.no more than a few thousand stars, B.disorganized, F loose
globular clusters are C.tightly packed, D.more than a million stars, E.made of older stars
Explanation:
Globular clusters are old clusters of stars that have remained in a gravitationally bound system. These clusters are usually roughly spherical and can contain anywhere from a few thousand to a million stars.
Globular clusters are found in our galaxy’s spherical halo, so they are distributed above, below, and level with the plane of our flat, disk-shaped Milky Way.
Open clusters are much younger and smaller than globular clusters. They are the recent birthplaces of new stars, which form out of clouds of dust and gas, and contain only hundreds or thousands of stars. Though the stars in an open cluster formed together out of the same material, they do not remain gravitationally bound over time and spread out, scattering their stars far and wide. Because they are not gravitationally bound, these clusters can have random and irregular shapes. They are located in the plane of our galaxy, along the spiral arms where the gas and dust in the Milky Way
Answer:
True
Explanation:
The cell bodies of preganglionic neurons of the parasympathetic division are present in the nuclei of four cranial nerves in the brainstem. These four cranial nerves are III, VII, IX, and X. Likewise, some of the cell bodies of the preganglionic neurons of the parasympathetic division are present in the lateral gray matter of the second to fourth sacral segments of the spinal cord. Therefore, the parasympathetic division is also known as the craniosacral division. The axons of the parasympathetic preganglionic neurons are called craniosacral outflow.
Answer:
The correct option is;
A. If snack are wrapped in aluminium foil, then the snacks will not be eaten by seagulls
Explanation:
It has been observed severally that birds including seagull tend to avoid shiny objects. As have been proven by research, birds are not drawn towards shiny materials and shiny articles can be used to scare off birds. Articles like CDs, plates of aluminium and tinfoil and be arranged so as to be glaring in order to ward of the birds
Similarly, placing shinny articles around a property keeps away.
