Use the drop-down menus to select the organic
compound model being described.
1. Shows valence electrons:
2. Shows chemical composition but no structure:
3. Is used most for hydrocarbons, shows lines and
functional groups only:

The options are: ball and stick, Lewis structure, molecular, space filling, skeletal, and structural.

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.