Active transport needs to actively acquire energy to occur, while passive transport happens on its own without energy.
Answer:
The number of trophic level in food chain is limited because at each trophic level a large amount of energy is being utilized for the maintenance of organism and lost as heat.
Explanation:
E because Helium’s atomic number is 2 so it has 2 electrons on each shell
There are four types of sensory receptors that respond to one of the four primary stimuli.
Thermoreceptors detect temperature changes in the environment.
Mechanoreceptors detect changes in pressure
Photoreceptors detect the photons composing light
Chemoreceptors detect chemical stimuli and are found inside the body (for example blood vessels). They are also responsible for our sense of taste and smell.
Thus, the correct answer to the question is D. on the tongue and in the nose, to detect taste or odor.
Biodiversity is the inconsistency among living organisms
from all foundations, including terrestrial, marine, and other aquatic ecosystems. The answer is Intrapopulation diversity.
Intrapopulation variability in resource gaining influences population dynamics,
with significant implications for conservation planning. Spatial analyses of niche
difference within and among populations can afford relevant information about
ecological relations.
