Answer:
earth sun
Explanation:
Thp90% of the earth uses solar energy
Answer:
Without an oxygen atmosphere very few things could live on the early Earth. Anaerobic bacteria were probably the first living things on Earth. The early Earth had no oceans and was frequently hit with meteorites and asteroids.
Explanation:
Answer: Lysosomes
Explanation:
A lysosome is a membrane-bound cell organelle that contains digestive enzymes. ... They break down excess or worn-out cell parts.
The answer is ‘the only truly distinctive primate trait’. Prehensile hands are a distinctive trait of primates an opposable thumb (capable of grasping). The digits have nails instead of claws, and tactile pads enriched with sensory nerve fibers at the ends of digits to feel to manipulate objects.
Answer:
Sadie's continue use of marijuana will lead to her brain's reduction of the neurotransmitter anandamide which will require her to need more of the marijuana to achieve its effects.
Explanation:
The active ingredient of marijuana is tetrahydrocannabinol (THC)which is responsible for causing change in the brain.
This activates specific receptors called cannabinoid receptor.This receptors are found in limbic and cerebral cortex region and cerebellum.
As these receptors are located in the brain, the effect of these receptors are also wide spread.In healthy brain, these receptors are activated by a neurotransmitter called as anandamide that have pain relieving effect and also play important function in brain.When THC activates these receptors,causes interference of the normal function.
marijuana also boost another type of neurotransmitter called dopamine after taking the drug.
