Answer: Solids- Particles are tightly packed, vibrating about a fixed position.
Liquids- Particles are tightly packed, but are far enough apart to slide over one another
Gases- have an indefinite shape and an indefinite volume
Change of state of Matter -Occurs due to heating or cooling of a substance (adding or removing energy)
Explanation: Hope it helps :)
Answer:
hepatic portal vein
Explanation:
med.libretexts.org/Courses/American_Public_University/APUS:_An_Introdu
The fovea centralis is tightly packed with receptors which can receive clear and highly detailed information.
The fovea centralis, or fovea, is a small depression within the neurosensory retina where visual acuity is the highest.
The fovea itself is the central portion of the macula, which is responsible for central vision.
To form high resolution images, the light must fall on the fovea, and that limits the acute vision angle to about 15 degrees.
In low light, this fovea constitutes a second blind spot since it is exclusively cones which have low light sensitivity.
Human fovea consists of 3 spectral types of cones: long wavelength cones, medium wavelength cones and short wavelength cones.
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Answer:
Photosynthesis and chemosynthesis are both processes by which organisms produce food; photosynthesis is powered by sunlight while chemosynthesis runs on chemical energy. The majority of life on the planet is based in a food chain which revolves around sunlight, as plants make food via photosynthesis.
