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  1. Problems
  2. /Diversity of Living Organisms

Diversity of Living Organisms

Biology
+ Upload a Problem
120 problems
Type:
1.
In a moss, a fern and a pine, say which generation is the main plant, and whether the other… New
High School (11–12) · Plant Life Cycles and Alternation of Generations, Gymnosperms and AngiospermsStemPy LabStemPy Lab
Hard
2.
A Chlamydomonas zygote divides by meiosis. New
High School (11–12) · Plant Life Cycles and Alternation of Generations, Gymnosperms and AngiospermsStemPy LabStemPy Lab
Medium
3.
Read the four descriptions and name the pattern of each life cycle. New
High School (11–12) · Plant Life Cycles and Alternation of Generations, Gymnosperms and AngiospermsStemPy LabStemPy Lab
Medium
4.
A cycad has 2n = 22, and a coconut palm has 2n = 32. New
High School (11–12) · Gymnosperms and AngiospermsStemPy LabStemPy Lab
Hard
5.
Arjun grows three seedlings. Seedling A comes up with two seed leaves and later grows leaves with a… New
High School (11–12) · Gymnosperms and AngiospermsStemPy LabStemPy Lab
Easy
6.
A plant has 14 chromosomes in each leaf cell. New
High School (11–12) · Gymnosperms and AngiospermsStemPy LabStemPy Lab
Medium
7.
Draw an embryo sac from memory and label its parts. New
High School (11–12) · Gymnosperms and AngiospermsStemPy LabStemPy Lab
Easy
8.
In one park, Nisha finds pines with both small, soft cones and large, woody cones on the same tree. New
High School (11–12) · Gymnosperms and AngiospermsStemPy LabStemPy Lab
Medium
9.
A species of Cycas has 22 chromosomes in each leaf cell. New
High School (11–12) · Gymnosperms and AngiospermsStemPy LabStemPy Lab
Medium
10.
A botany student lists five plants: Cedrus, Mangifera (mango), Ginkgo, Oryza (rice) and Cycas. New
High School (11–12) · Gymnosperms and AngiospermsStemPy LabStemPy Lab
Easy
11.
A cell of the thallus of a liverwort has 9 chromosomes. New
High School (11–12) · Bryophytes and PteridophytesStemPy LabStemPy Lab
Medium
12.
Kabir says: " Selaginella is halfway to being a seed plant." Explain what he means. New
High School (11–12) · Bryophytes and PteridophytesStemPy LabStemPy Lab
Hard
13.
A cone of Selaginella has 20 microsporangia, each with 30 microspore mother cells, and 6… New
High School (11–12) · Bryophytes and PteridophytesStemPy LabStemPy Lab
Medium
14.
A college garden labels four pteridophytes: Psilotum, Lycopodium, Equisetum and Adiantum. New
High School (11–12) · Bryophytes and PteridophytesStemPy LabStemPy Lab
Easy
15.
On a trek, Ira finds many ferns in a cool, shady ravine with a stream, but almost none on the dry… New
High School (11–12) · Bryophytes and PteridophytesStemPy LabStemPy Lab
Medium
16.
A fern frond has 18 pinnae. Under each pinna there are 10 sori, and each sorus holds 25 sporangia. New
High School (11–12) · Bryophytes and PteridophytesStemPy LabStemPy Lab
Medium
17.
Nisha cuts a moss plant just below the foot of its sporophyte, so that the sporophyte (seta and… New
High School (11–12) · Bryophytes and PteridophytesStemPy LabStemPy Lab
Hard
18.
A nursery sends saplings by train, their roots wrapped in 60 g of dry Sphagnum soaked in water. New
High School (11–12) · Bryophytes and PteridophytesStemPy LabStemPy Lab
Medium
19.
A thallus of Marchantia growing on a flowerpot has 9 gemma cups, and each cup holds 14 gemmae. New
High School (11–12) · Bryophytes and PteridophytesStemPy LabStemPy Lab
Medium
20.
After the rains, Farhan sees a soft green coat on the shaded side of a brick wall. New
High School (11–12) · Bryophytes and PteridophytesStemPy LabStemPy Lab
Easy
21.
Match each product to the alga it comes from and its class. New
High School (11–12) · AlgaeStemPy LabStemPy Lab
Medium
22.
A kelp grows about 45 cm a day in the summer. New
High School (11–12) · AlgaeStemPy LabStemPy Lab
Medium
23.
In clear sea water, take it that red light falls to half every 2 m, and blue-green light every 12 m. New
High School (11–12) · AlgaeStemPy LabStemPy Lab
Hard
24.
Three algae are studied. Alga 1 has no flagella at any stage, and stores floridean starch. New
High School (11–12) · AlgaeStemPy LabStemPy Lab
Easy
25.
A filament of Spirogyra is 36 cells long. New
High School (11–12) · AlgaeStemPy LabStemPy Lab
Medium
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