Answer:
<em>Two main types of Tundra:</em>
- Arctic tundra is the tundra region which can be found in the northern hemisphere close to the regions of Alaska, Greenland, Siberia.
- Antarctic tundra is the tundra region found near the Antarctic peninsula.
<em>Biotic factors of Tundra:</em>
Biotic factors can be described as the living components of an ecosystem. The biotic components of the tundra include fungi, mosses, shrubs, insects, fish, birds and mammals.
<em>Abiotic factors of Tundra:</em>
Abiotic factors can be described as the non-living components of an ecosystem. The abiotic components of the tundra include temperature, wind, rain, snow, sunlight, soil, rocks and permafrost.
Answer:
A sewing needle floats when it is placed gently on top of water in a bucket - surface tension
Water molecules ding to plant cell walls - adhesion
A water strider runs across a pond without breaking the surface - surface tension
A drop of water spilled on a table forms a drop on the table, rather than spreading out over the surface - cohesion
Water molecules cling to the side of a beaker - adhesion
Water molecules are attracted to each other - cohesion
Explanation:
The surface tension refers to the tendency of the surface of a liquid to remain unbroken by an external force due to the cohesive property of the molecules of the liquid. Instead of being broken, the surface of the liquid stretches like an elastic membrane.
The adhesive property of a liquid, also known as the force of adhesion, refers to the property of the molecules of the liquid to stick to other molecules while cohesive property or cohesion refers to the property of molecules of liquids to stick to themselves.
Hence,
<u>Surface tension</u>
- A sewing needle floats when it is placed gently on top of water in a bucket.
- A water strider runs across a pond without breaking the surface.
<u>Cohesion</u>
- A drop of water spilled on a table forms a drop on the table, rather than spreading out over the surface.
- Water molecules are attracted to each other.
<u>Adhesion</u>
- Water molecules ding to plant cell walls
- Water molecules cling to the side of a beaker
Summer is about to begin the hemisphere
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Answer:
D. there is less structural carbohydrate.
Explanation:
Most bacterial cells have a cell wall located outside the plasma membrane, formed by peptideoglycan or murein, which provides protection and shape to the cell. In addition to the wall, some bacteria have a polysaccharide capsule that surrounds this structure, this capsule is a carbohydrate envelope that can allow more or less flexibility to the bacterial cell. The more structural carbohydrates the polysaccharide capsule has the less flexible the bacteria will be. Thus, we can say that if E. coli has the most flexible cell envelope, compared to the envelope of other bacteria, it is because there is less structural carbohydrate in the E. coli envelope.
The general area of the body that the cranial nerves serve are the HEAD AND NECK organs.
Here are the list of the 12 Cranial nerves together with its function.
Number Name Function
<span><span>I Olfactory Nerve Smell
</span><span>II Optic Nerve Vision
</span><span>III Oculomotor Nerve Eye movement; pupil constriction
</span><span>IV Trochlear Nerve Eye movement
</span><span>V Trigeminal Nerve Somatosensory information (touch, pain) from the face and head; muscles for chewing.
</span><span>VI Abducens Nerve Eye movement
</span><span>VII Facial Nerve Taste (anterior 2/3 of tongue); somatosensory information from ear; controls muscles used in facial expression.
</span><span>VIII Vestibulocochlear Nerve Hearing; balance
</span><span>IX Glossopharyngeal Nerve Taste (posterior 1/3 of tongue); Somatosensory information from tongue, tonsil, pharynx; controls some muscles used in swallowing.
</span><span>X <span>Vagus Nerve </span>Sensory, motor and autonomic functions of viscera (glands, digestion, heart rate)
</span><span>XI Spinal Accessory Nerve Controls muscles used in head movement.
</span><span>XII Hypoglossal Nerve <span>Controls muscles of tongue</span></span></span>
