The right answer is B
A primary producer corresponds, in an ecosystem, to an autotrophic living being, that is to say capable of producing organic matter from mineral matter. It is the first element of the food chain. This organism is totally or partially ingested by a primary consumer, itself being the potential target of secondary consumers.
Decomposers are living creatures that contribute to the degradation of dead organic matter or feces by returning them in mineral form. They play a crucial role in an ecosystem because they participate in the recycling of the elements.
Answer:
Some materials are so important to a cell that it spends some of its energy (hydrolyzing adenosine triphosphate (ATP)) to obtain these materials. ... Passive transport is a naturally-occurring phenomenon and does not require the cell to exert any of its energy to accomplish the movement.
Explanation:
Passive transport is a type of membrane transport that does not require energy to move substances across cell membranes. ... The four main kinds of passive transport are simple diffusion, facilitated diffusion, filtration, and/or osmosis.
Answer:
245.1663 Joules
Explanation:
Use the potential energy formula which is U=mgh
Where m=mass in Kg
g=gravitational acceleration: 9.80665 m/s^2
and h=height in meters
Answer:
The threshold in biology is explained in terms of neuroscience or action potential that affects nervous system.
The threshold value is the value that identifies incoming signals that should be sufficient enough to generate an action potential. The potentials generated by the signals are additive, and reaches threshold depends on their amplitude and frequency.
An absolute threshold is defined as the minimum level of signals like light, touch or sound , detected by any organism and allows them to react.
While Difference threshold allow to detect difference between two different signals.