The bark of a tree is impervious to gases and water because bark cells are dead cells of the epidermis and compactly arranged without intercellular spaces. They contain a chemical called suberin in their walls that make them impervious to gases and water and it doesn't allow gases or water into the tree as bark cells are in the bark outer most layer of the tree.
Answer: the question is incomplete,below is the complete question.
List two species that may be threatened by the construction of a solar power tower in the California Desert
The answers are, Desert torties, mountain yellow legged frog and Joshua tree.
Construction of a solar power tower in the California Desert will threaten the existence of Desert torties, mountain yellow legged frog and and Joshua tree.
Explanation: The construction of solar power towers in Mojave desert in California poses a threat to the existence of quite a number of plants.The Mojave desert houses the largest solar power plant in the world,creating the solar power tower will create job opportunities for people but at the same time endangering the existence of about 12 rare plants that are found in the region of which Desert torties, mountain yellow legged frog and Joshua tree are greatly included,these plants cannot co-exist with solar thermal mirror arrays,this brings a controversy between energy/electricity generation and wildlife/ecosystem conservation.
Answer:
thigmotropism
Explanation:
plant growth in response to touch. Plant tendrils are wrapping around the stick.
I'd use the library, the encyclopedia and the Internet.
This capacity is known as Neuroplasticity. Neuroplasticity is the change in neural pathways and neurotransmitters that happens because of specific variables, similar to conduct, condition, or neural procedures. Amid such changes, the cerebrum participates in synaptic pruning, erasing the neural associations that are never again fundamental or helpful, and reinforcing the vital ones.
