Answer:
Dendrites, cell body, axon hillock, axon, synaptic terminals, biceps brachii.
Explanation:
Neurons are the structural and functional unit of the nervous system. The neurons helps in the transmission of nerve impulse in the body. Two main types of neuron are somatic neuron and motor neuron.
The signal is first reach to dendrites. From the dendrites, the signal transmit to the cell body and then to the axon hillock. The signal then transmits to the axon. At the end of neuron the message is transmitted to the synaptic terminal. The nerve impulse finally reaches to the biceps brachii and results in the flexion of the arm at the elbow.
Answer:
Class I: Hepaticopsida ( Liverworts)
Class II: Anthocerotopsida ( Hornworts)
Class III: Bryopsida ( Mosses)
Explanation:
Bryophytes are small plants that grows in moist and shady places.They don't attain great heights because of absence of roots, vascular tissues, mechanical tissues and cuticle. They are terrestrial but require external water to complete their life cycle. Hence they are called as the" amphibians" of the animal kingdom.
Class I: Hepaticopsida or Hepaticae
- Gametophytic plant body is either thalloid or foliose. If foliose the lateral appendages are without midrib.
- Rhizoids without septa
- Each cell in the thallus contain many chloroplasts
- Sex organs are embedded in the dorsal surface
- Capsule lacks columella
- Sporophyte may be simple having only one capsule or differentiated into root, seta and capsule
- It has 4 orders: Calobryales, Jungermanniales, Spherocarpales and Marchantiales
Class 2: Anthocerotae or Anthocerotopsids:
- Gametophytic plant body is simple, thalloid;thallus dorsiventra without air chambers shows no internal differentiation of tissues
- Scales are absent in the thallus
- Each cell of the thallus possess a single large chloroplast with a pyrenoid
- Sporophyte is cylindrical only partly dependent on gametophyte for its nourishment. It is differentiated into bulbous foot and cyclindrical capsule. Seta is meristematic.
- Endotheciumforms the sterile central column in the capsule. It have ony one order Anthocerotales
Class 3: Musci or Bryopsida
- Gametophyte is differentiated into prostrate protonema and an erect gametophores
- Gametophore ids foliose, differentiated into axis and lateral appendages like leaves but without midrib.
- Rhizoids are multicellular with oblique septa
- Elaters are absent in the capsule of sporangium
- The sex organs are produced in seperate branches immersed in a group of leaves.
- It has only three orders: Bryales, Andriales and Sphagnales
Bryophytes are used as a packaging material for fragile goods, glasswares etc.Mosses are good source of animal food in rocky and snow clad areas. Decoction prepared by boiling Sphagnum in water is used for the treatment of eye disease.
<em>ATP stands for denosine tri phosphate ..
<u>formation:
</u>it is formed in the respiration ..also 36 molecules of ATP are formed during break down of 1 glucose molecule ..
<u>function:
</u>its function is to provide energy ,,
<u>how it provides energy:
</u>when one phosphate molecule separate ATP is converted into ADP and energy is released..
and when one phosphate is separated from ADP AMP is formed and energy is released ..</em>
Crosscutting concepts have application across all domains of science. As such, they are a way of linking the different domains of science. They include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.
Answer: a) the majority of participants still fully
