Needles not leaves bark cracked and gray growth pattern treelike height between 20 and 30 feet sheds needles in dry conditions the list of traits describes a typical pine tree. which trait is caused by the environment, not genetics? a) bark cracked and gray b) tree like growth pattern c) sheds needles in dry conditions d) height varies between 20 and 30 feet eliminate

Option C - sheds needles in dry conditions

All physical factors such as length, colour, width, patterns are genetically controlled factors however, the needles response to the weather of extreme dryness, is through the falling of leaves, this is an evidence of response of the needle leaves towards an environmental parameter.

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 potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.