Leaf-spines and their functions. -Biology

Leaf-spines and their functions. -Biology
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Why are the leaves of cactus plants modified into spines? -Biology

Description : Why are the leaves of cactus plants modified into spines? -Biology

Last Answer : The leaves of cactus are modified into spines, to prevent water loss from the surface of leaves. ... Thus, the stem is the centre of photosynthesis in the cactus plants instead of the leaves.

How do echidna use their spines?

Description : How do echidna use their spines?

Last Answer : Feel Free to Answer

Did you know some spammer have spines? Who would actually do this "work"?

Description : Did you know some spammer have spines? Who would actually do this "work"?

Last Answer : There are desperate, computer savvy people in India that “farm” on Farmville for a small fee. How sad – for both sides of the funds transfer.

How does the spines on an octopus tree help the plant's leaves keep the water they need

Description : How does the spines on an octopus tree help the plant's leaves keep the water they need

Last Answer : Need Answer

While stranded in the desert, you come across two creatures offering water. Only, one has no nose, and one has spines. They say that one has poison, and the other will keep you going for a few more hours. Which one can't you trust? -Riddles

Description : While stranded in the desert, you come across two creatures offering water. Only, one has no nose, and one has spines. They say that one has poison, and the other will keep you going for a few more hours. Which one can't you trust? -Riddles

Last Answer : The one with no nose, for it’s a snake that bears poison. The other is a cactus, which has water in it.

Arms, pedicellariae and spines are absent in the echinoderm

Description : Arms, pedicellariae and spines are absent in the echinoderm

Last Answer : Arms, pedicellariae and spines are absent in the echinoderm A. Sea cucumber B. Sea lily C. Sea star D. Sea urchin

Stipules are modified into spines in

Description : Stipules are modified into spines in

Last Answer : Stipules are modified into spines in A. Shoe Flower B. Cotton C. Zizyphus D. Dalbergia

Open stunted forests with bushes and having long roots and sharp thorns or spines are commonly found in (a) Eastern Odisha (b) North-Eastern Tamil Nadu (c) Shiwaliks and Terai regions (d) Western Andhra Pradesh

Description : Open stunted forests with bushes and having long roots and sharp thorns or spines are commonly found in (a) Eastern Odisha (b) North-Eastern Tamil Nadu (c) Shiwaliks and Terai regions (d) Western Andhra Pradesh

Last Answer : Ans: (d)

In cactus, the spines are the modified – (1) stern (2) stipulse (3) leaves (4) buds

Description : In cactus, the spines are the modified – (1) stern (2) stipulse (3) leaves (4) buds

Last Answer : (3) leaves Explanation: Most cactus morphologists have concluded that cactus spines are modified leaves. They are wholly transformed leaves that protect the plant from herbivores, radiate heat from the stem during the day, and collect and drip condensed water vapour during the cooler night.

Plants adapted to low light intensity have (a) larger photosynthetic unit size than the sun plants (b) higher rate of CO2 fixation than the sun plants (c) more extended root system (d) leaves modified to spines.

Description : Plants adapted to low light intensity have (a) larger photosynthetic unit size than the sun plants (b) higher rate of CO2 fixation than the sun plants (c) more extended root system (d) leaves modified to spines.

Last Answer : (a) larger photosynthetic unit size than the sun plants

Leaves become modified into spines in (a) onion (b) silk cotton (c) Opuntia (d) pea.

Description : Leaves become modified into spines in (a) onion (b) silk cotton (c) Opuntia (d) pea.

Last Answer : (c) Opuntia

Second degree uterovaginal prolapse is characterized by: a) Complete protrusion of uterus outside introitus. b) Descent of genital tract within vagina. c) Descent of genital tract upto introitus. d) Descent of genital tract outside the introitus. e) Descent of cervix below the ischeal spines.

Description : Second degree uterovaginal prolapse is characterized by: a) Complete protrusion of uterus outside introitus. b) Descent of genital tract within vagina. c) Descent of genital tract upto introitus. d) Descent of genital tract outside the introitus. e) Descent of cervix below the ischeal spines.

Last Answer : d) Descent of genital tract outside the introitus.

A weed having spines as adaptations that repel grazing a). Solanum nigrum b). Solanum xanthocarpus c). Parthenium d). Ageratum

Description : A weed having spines as adaptations that repel grazing a). Solanum nigrum b). Solanum xanthocarpus c). Parthenium d). Ageratum

Last Answer : b). Solanum xanthocarpus

In cactus, the spines are the modified (1) stem (2) stipulse (3) leaves (4) buds

Description : In cactus, the spines are the modified (1) stem (2) stipulse (3) leaves (4) buds

Last Answer : leaves

Which of the following are stems of plants which are leaf like in form, are green, and perform the functions of leaves. In addition, they may bear fruit, flowers, and temporary leaves? a) Tubers b) rhizomes c) cladophylls d) none of the above

Description : Which of the following are stems of plants which are leaf like in form, are green, and perform the functions of leaves. In addition, they may bear fruit, flowers, and temporary leaves? a) Tubers b) rhizomes c) cladophylls d) none of the above

Last Answer : ANSWER: C -- CLADOPHYLLS