Answer:
Masks are a simple barrier to help prevent your respiratory droplets from reaching others. Studies show that masks reduce the spray of droplets when worn over the nose and mouth.
Explanation:
Answer:
Ecosystem, community, species, population
Explanation:
Ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA and similarities of embryos.
Answer:
"Interphase was formerly called "the resting phase,"
Explanation:
The cell in 'interphase' is not rather "resting" but preparing for later cell division.
Since it has 4 protons, it must have an atomic number of 4. (That makes it beryllium.)
Since it has a 4 protons and 5 neutrons, it has a mass number of 9.
