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Cacti have needles (spines) instead of leaves.
Natural selection was probably the culprit, but what event/animal caused it to evolve into a plant with splkes for defense, I do not know.
Pine tree
When the mitochondria in a plant is damaged the plant will not be able to produce energy.
probably not
Cacti have needles (spines) instead of leaves.
Natural selection was probably the culprit, but what event/animal caused it to evolve into a plant with splkes for defense, I do not know.
It is a Deciduous type.Trees with needles are Conifers.
a plant pathogen, causing reed needles of species af Abies
Pine tree
Pine tree
There a plenty of adaptations plants have and this would be a long answer. with that said look at the cactus for example. This plant not only stores water within for a very long time but also has needles that do several different things. The needles of a cactus shade the the cactus, not having leaves means less need for water, the needles are able to slow water down when in falls on the plant, in order for the plant to collect as much water as possible and since this plant must store water for a long time, the needles protect it from predator's Also cactus are completely green, doing away with leaves and allowing the skin of the plant to do the photosynthesis needed.
Probably not, seeing as it uses them to create its own nourishment It would probably adapt after generations and generations, but the immediate after effect of the removal of chloroplasts would probably result in malnourishment
It helps them store the water in their stems because water can escape through the needles
by comparing the positive result with the actual result. -post lab
by comparing the positive result with the actual result. -post lab
The fruit of the plant holds and protects the seeds. The seed coat initially and later when the ovary ripens, the fruit protects the seed.