21.2 if you want it rounded to the tenths place 21.23722628 if not
Answer:
Microfilaments, Intermediate filaments and microtubules
Explanation:
Three distinct elements make up the cytoskeleton in eukaryotic cells are:
1. Microfilaments or actin filaments which are composed of actin proteins. The functions of those filaments are: muscle contraction (myosin heads move “walk” on actin filaments), the movement of the cell, intracellular transport, maintaince of the cell shape..
2. Intermediate filaments which can be made of vimentins, keratin, lamin, desmin… Their functions are: the maintenance of cell shape, anchoring organelles, structural components of the nuclear lamina, cell-cell and cell-matrix junctions…
3. Microtubules are filaments polymers of alpha and beta tubulin. Their roles are in intracellular transport (associated with motor protein dyneins and kinesins), formation of the axoneme of cilia and flagella, formation of the mitotic spindle.
Answer:
A <u><em>receptor</em></u> is a protein that recognizes and responds to a signal.
Explanation:
A receptor is a protein molecule present on the cells on which the signalling molecules can bind and generate a physiological response. Some receptor molecules can also respond to Sun and light. Each type of cell has specific receptors molecules and hence can respond to specific signals. The receptor molecules hence tend to receive signals for a cell. Molecules such as hormones bind to the receptors.
The type of stimulus following a behavior removes something that is unpleasant is the negative reinforcer.
Stimulus is any signal. This can be in the form of touch, smell, taste, etc. This stimulus triggers the nerve cells of the body that send to signals to the brain to generate a response. For example, when one person touches a hot utensil, the touch of heat acts as a stimulus, where the brain sends response in the form of instantly removal of the hand.
Negative reinforcement is the response towards a stimuli that has not yet been received. For example, taking a medicine before any disease appears is the acts of negative reinforcement.
To know more about negative reinforcement, here
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The correct scientific name for Organism 1 is <em>Phoebis philea</em>.
<u>Explanation:</u>
The species of butterfly scientifically named as <em>Phoebis philea </em>and commonly named as orange-barred sulfur, basically found in Americas. Its scientific classification involve following points: Kingdom is Animalia; Phylum is Arthropoda; Class is Insecta; Order is Lepidoptera; Family is Pieridae; Genus is Phoebis and Species is P. philea.
The environment of this species is in tropical scrub, parks, fields and edges of the forest. The creature takes nectar from plants of red colour. The larvae depend on the species Cassia. Wingspan is between 68 and 80 mm. In Florida there are 2-3 generations a year, and one in the northern region of the range with winged adults from mid to late summer.
