It actually says about the theory of evolution !!! as in what sequence they comes and become extinct !!! So B
Answer:
every muscle cell of the motor unit is stimulated to contract.
Explanation:
Stimulus in biology can be defined as an obvious change in either the chemical or physical structure of an organism' environment (either external or internal). Thus, all living organisms (both animals and plants) respond to changes in their environment and consequently, an appropriate response or reaction is made. Also, stimulus arising from within the organism is known as internal stimulus while those from its environment are known as the external stimulus.
In organisms, the specialized cells that detect stimulus are generally known as sensory receptors while a group of these receptors is referred to as sense organ. Therefore, the senses are necessary for behavior because stimuli must be sensed in order to respond.
Stimulus control can be defined as a phenomenon that arises when a living organism responds or behaves in the presence of a stimulus and in another way in the absence of a stimulus.
For example, opening the door of a microwave oven as soon as its timer beeps.
Example II; When your body touches a hot object, you quickly move away and feel some pain subsequently.
Action potentials generates the nerve impulse in a motor neuron.
When an action potential is generated within a motor neuron, every muscle cell of the motor unit is stimulated to contract.
The classification of the given substances can be H2O have hydrogen bond, CH4 have Dipole-dipole interaction, CH3Cl has dipole–dipole and dispersion only.
<h3>What are intramolecular forces?</h3>
An intermolecular force (IMF) (or secondary force) is the force that mediates the interaction of molecules, including electromagnetic forces of attraction or repulsion that act between atoms and other types of neighboring particles, such as atoms or ions.
The complete question is:
Classify each substance based on the intermolecular forces present in that substance. Hydrogen bonding, dipole–dipole, and dispersion Dipole–dipole and dispersion only Dispersion only.
The classification of the given substances can be H2O have hydrogen bond, CH4 have Dipole-dipole interaction, CH3Cl has dipole–dipole and dispersion only.
Thus, this can be the possible classification for the given scenario.
For more details regarding intramolecular forces, visit:
brainly.com/question/12783802
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Answer:
A) They only replicate the same time as the larger chromosome.
Explanation:
- Plasmids are small, circular, double stranded DNA molecule, which can replicate independently from its chromosomal DNA.
- If plasmids are used for experiments, they are called vectors.
- Scientists use plasmids as tools for cloning, transferring and manipulating genes.
- They are distinct from chromosomes in being non-essential.
- Plasmids are sometimes present in archaea and eukaryotic organisms.
- Plasmids often carry genes that benefit the survival of the organism, such as by providing antibiotic resistance.
- They do not replicate the same time as the larger chromosome.
