Question
Which among the following has specialized tissue for
conduction of water? Thallophyta Bryophyta Pteridophyta GymnospermsSolution
Pteridophyta and Gymnosperms have well-developed vascular tissues (xylem and phloem) for the conduction of water and nutrients. Thallophyta and Bryophyta lack such specialized tissues. Information Booster:
- Thallophyta includes algae, which are non-vascular.
- Bryophyta are non-vascular plants that rely on diffusion.
- Pteridophytes are the first vascular plants with true roots, stems, and leaves.
- Gymnosperms are vascular and produce seeds.
a, b, c in GP; a + b + c = 21, abc = 216. Find numbers.
If the median and mode of a data set are 6 and 12 respectively, then find the mean of the data.
If 3, x, y, 48 are in GP and x, y, 45 in AP, find x and y.
Calculate the mean of these numbers:
18, 14, 22, 16, 20, 12
The 4th term of an AP is 17 and the 9th term is 42. Find the sum of the first 20 terms.
The 5th term of an AP is 23 and the 12th term is 51. Find the 20th term.
In a geometric progression, the first term is 4 and the common ratio is 2. If the sum of the first n terms is 252, what is the value of n?
A spent 36% and 25% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 25% and 40% to his mother and brother, respec...
What is the mode of the given data?
5, 7, 9, 7, 3, 7, 5, 7, 8, 6, 7
nth term of an AP is 0. If AP is 63, 60, 57…, then find the value of n.
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