1. Barnacles are crustaceans that attach themselves to large marine animals such as whales.
The barnacles are transported to new feeding grounds, usually without affecting the whale.
This process is an example of which of the following?
A. predation
B. parasitism
C. mutualism
D. commensalism

What is the type of the reaction below? bacl2 + h2so4 → 2 hci + baso4 double replacement synthesis single replacement decomposition

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?