Informal Commands WALK! EAT! SLEEP!. In Spanish… When we want to tell a friend to do something we use informal (tú) commands… ¡Come! – EAT! ¡Camina!-

Chapter 3: Antigen Recognition by T lymphocytes TCR T H 1 - T Helper cell type 1 T H 2 - T Helper cell type 2 T C or TCL - cytotoxic T cell.

South America Northern Tropics Andean Countries Southern Grasslands.

Fig. 3. Photomicrographs of garnet (a), Cr-spinel (b) and Mica (c) xenocrysts in Ogonek pipe; SEM Image of two variety of K-feldspar in volcanic breccias.

Warm Up 2. Consider the series: a)What is the sum of the series? b)How many terms are required in the partial sum to approximate the sum of the infinite.

Today’s Main Idea Europe has many valuable resources that strengthen its economy, but environmental problems are a growing concern.