Answer:
sedimentary rock
Explanation:
fossils are most commonly found in sedimentary rock. Unlike most igneous and metamorphic rocks, sedimentary rocks form at temperatures and pressures that do not destroy fossil remnants. Often these fossils may only be visible under magnification.
The Doldrums are caused by solar radiation from the sun, as sunlight beams down directly on area around the equator. This heating causes the air to warm and rise straight up rather than blow horizontally.
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Answer:
Cell membrane and cytoskeleton
Explanation:
The cell membrane is the outer covering that encloses the cell contents and regulates movement of materials in and out of the cell. the cell membrane gives the cell its structure. Cytoskeleton provides support to the cell and include three types of small networks:
Actin filaments: - are flexible double strands of the protein actin
. They lead the intracellular movement of organelles and molecules and stabilize mechanically the plasma membrane
.
Microtubule: - are rigid hollow cylinders of the proteins α- & β-tubulin
They are responsible for the position and stability of ER and Golgi-Apparatus
, help to divide & move chromosomes during mitosis and organize the growth of the cell wall
.
Intermediate filaments: - are robe like fibres of different proteins which give
mechanical support
Fred must have suffered muscle atrophy.
Explanation:
Since Fred broke his leg and a cast was put around his leg,his orthopedic must have suggested restricted movement of his leg as a part of treatment.. Due to this immobilization the muscle mass of his leg may have got wasted and his leg became weak. Being too weak the leg may not have supported the body weight and Fred fell.
