Atoms of some elements pull more strongly on shared electrons than do atoms of other elements, as a result, the electrons are pulled more toward one atom, causing the bonded atoms to have a slight electrical charge.
Well i think it is because it lets the animals interact while killing their prey. i honesly dont know i just want to be the brainlest.
The distinguishing characteristics of the free living members of sarcodina are:
1. These are pseudopods (function in locomotion) which makes it the extentions of protoplasm.
2. These have both a clear ectoplasm and a granualated endoplasm.
3. These have nucleus both food vacuoles and contractile vacuoles.
