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Observe a cross section of a young Helianthus (or other eudicot) stem. Locate the epidermis, cortex, primary phloem, primary xylem , pith, and pith rays . Label these tissues in the image above.
This document provides an adaptive teaching guide for a lesson on models of the universe, outlining prerequisite knowledge, a 3-day lesson plan with formative assessment questions, and post-lesson remediation activities.
PDF | This study focuses on children’s experiences and the creation of “the big picture”, the Universe. It draws data from an age range 6–16 and is... | Find, read and cite all the ...
Record ID 1593 Description Micrograph transverse section Helianthus stem vascular bundles. Vascular bundle ~ 750 #m. The starch sheath is just visible outside the vascular bundle. The vascular cambium is active.
This paper collates research on the ideas about the origin of the universe and the planet Earth that pupils from Years 5 to 8 of primary school in Belgrade have. Such knowledge should open space for us to further analyse the attitude of young people towards science and the world it describes.
Helianthus (sunflower) exhibits the typical dicot arrangement of the 3 tissue systems (i.e., dermal, ground, & vascular tissue systems). Observe the prepared slides and locate each of the
12 Μαρ 2015 · In sunflower (Helianthus annuus L.), there has been an intense genetic selection for achenes with agronomic value, such as greater mass, oil content, and disease resistance. However, the...
