Hi there.
I believe you're looking for <u /><em>quantum;</em><em> </em>the small packets of energy emitted from an object.
Hope this helped!
Answer: oligotrophic
Explanation:
A newly formed lake is most likely to be oligotrophic. The oligotrophic lake is expected to have high oxygen concentration in water and low organic and inorganic nutrient content. This condition can only support the growth of small number of plants and algae. The overall growth rate of flora and fauna will be low hence, the biodiversity of a region will be low.
Answer:
presynaptic inhibition
Explanation:
Presynaptic inhibition is an inhibitory mechanism capable of modulating neurotransmitter release in the central nervous system (CNS), i.e., by suppressing the release of neurotransmitters from axon terminals. Endocannabinoids are neurotransmitters that bind to receptors in other cells, thereby indirectly affecting the activity of other neurotransmitters. Anandamide is a neurotransmitter derived from arachidonic acid -an omega-6 fatty acid-, whose effects are mediated by cannabinoid receptors in the CNS. This major endocannabinoid (anandamide) is thought to inhibit the release of the inhibitory neurotransmitter γ-aminobutyric acid (GABA).
Answer:
The correct answer is option d.
Explanation:
An extinct species of australopithecine, that is, Australopithecus africanus was the first species to be illustrated. It was of gracile or slender build and was considered to have been the direct ancestor of modern humans. Like modern man, the A. africanus did stood upright and walked upright, and were having free hands to use. However, they were smaller in height and lighter in weight in comparison to modern man.