Bryophytes are the amphibians of the plant kingdom. Justify
1 Answers
Talk Doctor Online in Bissoy App
In order to find out the different types of gametes produced by a pea plant having the genotype AaBb, it should be crossed to a plant with the genotyp
Correct Answer - D In the given question AaBb should be crossed with aabb. Scientists perform test cross to find out the different types of gametes or the genotypes of an...
2 Answers 1 views
A cross between pure tall Pea plant with green pods and dwarf Pea Plant with yellow pods will produce short `F_(2)` plant out of 16
Correct Answer - C This is an example of dihybrid cross because two characters are being studied simultaneously in which dwarfness is a recessive characters, so in `F_(2)`-generation 4 plants will...
2 Answers 1 views
(a) What is plant breeding? List the two steps the classical plant breeding involves. (b) How has the mutation breeding helped in improving crop varie
Plant breeding is a technique that involves the crossing of two plants to produce the progeny with particular traits in their genes and passed on to the future generation in...
2 Answers 1 views
Explain the following terms: 1. Species 2. Genus 3. Family 4. Order 5. Class 6. Division/Phylum 7. Sub kingdom 8. Kingdom
(i) Species: (a) Species is the principal natural taxonomic unit, ranking below a genus (b) It is a group of organisms that can interbreed under natural condition to produce fertile offspring. (c) It...
2 Answers 1 views
1. Name the two groups of Bryophytes.
1. Liverworts and mosses 2. Rhizoids absorb water and minerals and also help in fixation of thallus to the substratum.
2 Answers 1 views
Write economic importance of Bryophytes.
Economic importance of Bryophytes: 1. Some mosses provide food for herbivorous mammals, birds, etc. 2. Species of Sphagnum, a moss; provides peat used as fuel. 3. Mosses are also used as packing material...
2 Answers 1 views
Compare the gametophyte and sporophyte of Bryophytes with that of Pteridophytes.
Bryophytes Pteridophytes Gametophyte It is haploid, dominant, photosynthetic, independent, thalloid or erect. It is haploid, multicellular, generally autotrophic and short lived. Sporophyte It is short lived, multicellular and depends totally or partially on gametophyte for nutrition...
2 Answers 1 views
Write ecological importance of Bryophytes.
Economic importance of Bryophytes: 1. Some mosses provide food for herbivorous mammals, birds, etc. 2. Mosses along with lichens are the first living beings to grow on rocks. They decompose rocks to...
2 Answers 3 views
Write a short note on amphibians.
1. These animals live on land as well as in water (freshwater only). 2. Amphibians are poikilothermic animals. 3. Body is differentiated into head, and trunk. Neck and tail are absent in...
2 Answers 1 views
a. Amphibians and reptiles have a 3 chambered heart with ___atria and ___ventricle. b. heart is ___derived organ and protected by a double walled memb
Correct Answer - a. 2,1 b. Mesodermal,Pericardium c. 3,Tricuspid d. Thicker. e. 72, Pacemaker f. 30% g. Joint diastole h. P i. Coronary j. Decrease, Cardiac output
2 Answers 1 views