Answer: C
Explanation:
a. seasonal iteroparity
b. semelparity
c. Type lll
d. Type l
e. continuous iteroparity
Answer:
The spotted sea hares living in seagrass beds reproduce through semelparity.
Explanation:
b. neural receptors
c. postsynaptic signals
d. neural impulses
Neurons communicate with each other through synaptic transmission. This involves the presynaptic neuron releasing neurotransmitters into the synapse, which are then received by the postsynaptic neuron to continue the signal. Option A.
Neurons communicate with each other primarily through synaptic transmission. This process is basically the transmission of signals across the synapse (the tiny gap between neurons) through the release of chemicals known as neurotransmitters. One neuron (the presynaptic neuron) releases these neurotransmitters into the synapse, where they can be received by a second neuron (the postsynaptic neuron) via specialized structures known as neural receptors.
These receptors are designed to bind to specific neurotransmitters, resulting in what are known as postsynaptic signals, which then trigger a series of changes that propagate the signal along the neuron. These changes generate a neural impulse (also called an action potential), which is essentially an electrical signal that travels down the neuron's axon and can then trigger the release of more neurotransmitters at the next synapse, continuing the process of communication.
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b. Gamma rays.
c. Beta particles.
d. Alpha particles.
Answer:
b. Gamma rays.
Explanation:
Neutron activation analysis is used for non-destructive analyses on substances like solids, liquids, gases e.t.c. involving little or no preparation.
Neutron activation analysis involves bombarding specimens with neutrons gives resultant gamma rays.
The total size of a population of a single species.
The number of trophic levels in a food web.
Answer:
Biodiversity is the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.
Explanation:
the number of trophic levels in a food web
Answer: The work done by the ramp against the force of gravity is -343 J
Explanation:
Work is defined as the force that is causing the movement or displacement of an object.
Mathematically,
We know that:
where,
W = work done by the ramp = ?
m = mass of the box = 7 kg
g = acceleration due to gravity = (Negative sign appears because it is acting against the gravity)
d = displacement = 5 m
Putting values in above equation, we get:
Hence, the work done by the ramp against the force of gravity is -343 J