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FALSE
The xylem and the phloem tissues are found in plants. Bast fibers surround the xylem and the phloem tissues in plants.
True.
The xylem and the phloem tissues are found in plants. Bast fibers surround the xylem and the phloem tissues in plants.
yellow fibers white fibers reticular fibers
true
No it's not.
Elastic fibers in the connective tissue
Fibers
All tissues are made of cellulose fibers (main constituent of wood).
I assume you mean physiologically. A marathon runner has high aerobic endurance, VO2 max, and lactate threshold. This means that they are capable of producing a high level of ATP (muscle energy) for a prolonged period of time utilizing oxygen to feed the muscles. A sprinter has many fast-twich muscle fibers that are trained to produce explosive energy for short periods of time, but without using oxygen, i.e. anaerobically.
Slow twitch and fast twitch A muscle fibers.