Answer:
10
Explanation:
atomic mass is protons + neutrons
19 = 9 + neutrons
10 = neutrons
In physics, it’s called energy-transfer
Its D, im pretty sure theres not starch or acid in our DNA
Answer:
Invertebrates are the organisms in which backbone or vertebral column is absent.
The three macroinvertebrate categories are annelids, mollusks and arthropods.
Annelids are the organisms having segmented body. They are found in moist places. Examples are leeches and earth worms.
Mollusks are the organisms which are enclosed in a calcium carbonate shell. Examples are snails and slugs.
arthropods are the invertebrates which have segmented body and jointed appendages. Examples are insects and crustaceans etc.
