On a timer!
a geologist finds a metamorphic rock and notices that it has grains that formed in parallel layers. the geologist pries at the rock, and it splits apart along the bands formed by the layers.

which type of rock did the geologist most likely find?

gneiss
limestone
marble
sandstone

Option A, gneiss

Explanation:

Metamorphic rocks are classified based on their grain arrangement in to  foliated rocks and non- foliated rocks. These foliated rocks are the ones in which the grains are arranged in parallel layers bands which allows them to   split apart along these band. Some common examples of foliated metamorphic rocks are slate, schist, and gneiss

Thus , option A gneiss is the correct answer.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.