In gymnosperm, the endosperm is formed by
In gymnosperm, the endosperm is formed by
Options
(a) fusion of two polar nuclei (b) fertilized egg (c) fusion of one polar nuceus (d) germination of one megaspore
Correct Answer:
germination of one […]
Plant and Animal Kingdom
Piercing and sucking mouth parts are found in
Piercing and sucking mouth parts are found in
Options
(a) mosquitoes (b) butterfly (c) house fly (d) ticks
Correct Answer:
mosquitoes
Explanation:
No explanation available. Be the first to write the explanation for […]
The pigment haemocyanin is found in
The pigment haemocyanin is found in
Options
(a) chordata (b) mollusca (c) annelida (d) echinodermata
Correct Answer:
mollusca
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
In Arthropoda, head and thorax are often fused to form cephalothorax, in which one
In Arthropoda, head and thorax are often fused to form cephalothorax, in which one of the following classes, is the body divided into head, thorax and abdomen
Options
(a) Insecta (b) Myriapoda (c) […]
Pteridophytes were well adapted and advanced for survival on land but they
Pteridophytes were well adapted and advanced for survival on land but they cannot be much successful and widespread as gymnosperms and angioserms because they lack
Options
(a) large bodies with secondary growth (b) […]
In pteridophytes, spores germinate to give rise to inconpicuous
In pteridophytes, spores germinate to give rise to inconpicuous, small multicellur free living photosynthetic thalloid gametophyte called
Options
(a) proonema (b) prothallus (c) archegonia (d) ovule
Correct Answer:
prothallus
Explanation:
No explanation available. […]
What is common in whale,bat and rat
What is common in whale, bat and rat
Options
(a) The absence of neck (b) muscular diaphragm between thorax (c) Extra abdominal tests to avoid high temperature of body (d)
Correct Answer: […]
Presence of cholorophyll- a,c, fucoxanthin with mannitol and laminarian
Presence of cholorophyll- a,c, fucoxanthin with mannitol and laminarian as reserve food material are the characteristics of
Options
(a) Chlorophyceae (b) Cyanophyceae (c) Rhodophyceae (d) Phaeophyceae
Correct Answer:
Phaeophyceae
Explanation:
No explanation available. […]
At retrogressive metamorphosis, the urochordate larva
At retrogressive metamorphosis, the urochordate larva
Options
(a) loss notochord (b) loss tail (c) experience reduction of nervous system to a visceral ganglion (d) all the above
Correct Answer:
all the above
Explanation: […]
Which of the following is not a characteristic feature of all chordates
Which of the following is not a characteristic feature of all chordates
Options
(a) the presence of coelom (b) pharyngeal gill clefts in the early embryonic stages (c) a diaphragm that sperates thorax […]