1. Referring to the periodic table, determine whether each list of elements represents part of a period or a group.
oxygen, sulfur and selenium
b. nickel, copper and zinc
hydrogen, sodium and potassium
d.
copper, silver and gold
sodium, magnesium and aluminum
c.
ing
e.

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve

Lola needs to sign 6 invitations. using stopwatch that measures time to tenths of a second, it takes lola 5.3 seconds to sign her full name. going by the accuracy of the stopwatch, which is the most accurate determination for the number of minutes lola needs to sign all 96 invitations

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an