When do spring tides occur?
a. during a new moon
b. during a first quarter moon
c. during a waxing gibbous moon
d. during a waning crescent moon

Which is it a characteristic of the animal kingdom? a. they include both vertebrates and invertebrates b. their skin is covered with hair or fur c. they are heterotrophs d. they are eukaryotic

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination