Question

1. Amoeba exhibit the characteristics of living things, that is, movement, irritability, nutrition, metabolism, growth, and reproduction. How many of these characteristics have you been able to observe? 2. Have you seen any evidence that the amoeba responds to a stimulus? 3. Is paramecium bilaterally symmetrical? Explain. 4. Why do you suppose paramecium has contractile vacuoles?! 5. Did the cilia of paramecium beat in unison? Does this explain how the organism can move so uniformly through a fluid? 6 What color do you observe in the Part B, step 10? What do you think has gone on here? 7. Compare types of locomotion among the species you observed. 8. Compare types of nutrition among the species you observed. 9. Compare types of reproduction among the species you observed.

i just need 1-5 . thank you !

Answer 1

1) Amoeba exhibits the following characteristics:-

movement - ameoba moves with psuedopods are is termed as ameoboid locomotion.

Reproduction- ameoba has asexual reproduction which is by binary fission and sexual reproduction by meiosis

Nutrition- nutrition is by phagocytosis in which it engulfs the food .its termed as holozoic nutrition irritability- is the property of ameoba in its protoplasm to any stimuli like any change in environment etc.metabolism- it includes ingestion ,digestion,egetion,absorption,circulation, assimilation,dissimilation,secretion,excretion,respiration.growth-since its a unicellular organism its growth is limited by can change its shape while movement,ingestion and all.

2)yes..several studies has shown that ameob responds to several stimuli like appropriate eclectric field, chemo-attractant etc.

3) paramecium is bilaterally symmetrical and constant as it is slipper like shape.

4) paramecium has contractile vacuole Because contractile vaculoe is only present in unicellular organisms and paramecium is a unicellular organism.

5) paramecium moves forward by beating its cilia backward an angle and in unison.This means the paramecium moves by spiraling uniformly in fluid On an axis which is invisible.