16. Which chordate characteristic is present in adult turnicatest? A) notochord

Question

16. Which chordate characteristic is present in adult turnicatest? A) notochord B) nerve chord C) tal o) gll sits. E) al of the above 17. How would the mobilty of an earthworm be affected if its coelom were Al The earthhwerm would be unable to move its bristies 8) The earthworm would be unable to lengthen its body. C) The earthwerm would be unable to lash from side to side. D) The earthworm would soon run out of ATP and would be unable to contract its muscles E The earthworm would be unable to move through the soil normally 18. What plant chisracteristics are adaptaticns to land? A) vascular tissues B) internell fertlication. C) seeds with waterproof coats. D) waxy leaves E) all of the above. 19. What tissue nourishes a developing pear embryo? A) fruit. B) endosperm. C) tracheid D) cuticle. E) meristem Which tissue controis the flow of water and minerats into a root? A) endodermis. B) cortex C) pericycle. D) pith. E) vascular camblum. 20. 21 Guttation is caused by Al condensation of water vapor on plant surfaces C) pressure resuiting from osmosis in the roots. B) fallure of guard cells to close when hurmidity ls high D) ions pumped from the leaves. E) a and b only 22. Which of the following satements concerming protists A) All protists are eulcaryotic organisms; many are unicellular or colonial is false? B) The orpanism that causes malaris is transmitted to humans by the bite of the tsetse ly C All apicomplexans are parasitic D) Celluilar slime molds have an amoeboid singe hai may be followed by a stage during which spores are produced E) The euglenozoans thai are functionally mixourophic coniain chloroplasts

Explanation / Answer

Ans 19- Endosperm surround the embryo and provides nutrition in the form of starch, though it thus option B is correct.

Ans 20- Control of water and nutrition is take place by vascular cambium.thus option E is correct.

Ans 21-Glutation is coused by condensation of water vapour on the plant surface when soil is moist and it also due to stomatal failour or closing of gaurd cell.thus option E is correct.

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