A student chooses to use a straw as a model for a plant stem. What is one advantage to using the straw as a model?
A.
It has an opening that is on the same scale as in a plant stem.
B.
It is made from the same materials as a plant stem.
C.
It can carry water like a plant stem.
D.
It is the same size as all plant stems.

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.

To be or not to be that is da question