Which one of the following is representing the group of diatoms?

A: Pinnularia, Navicula, Cymbella, Melosira

B: Euglenamorpha, Hedneria , Heteronema, Colacium

C: Nostoc, Anabaena, Aulosira, Cylindrospermum

D: Cochlodinium, Gymnodinium, Lenodinium, Peridinium

Answer & Explanation Discussion
Save for Later (0)
Please login to bookmarkClose

No account yet? Register

Pinnularia, Navicula, Cymbella, Melosira

Diatoms are found in__________?

A: Phytoplanktonic population

B: Freshwater lakes and ponds

C: Marine environment

D: All of the above

Answer & Explanation Discussion
Save for Later (0)
Please login to bookmarkClose

No account yet? Register

All of the above

Centric discoid form of diatoms is__________?

A: Diplaneis

B: Coscinodiscus

C: Camphyloneiscus

D: Stephanodis

Answer & Explanation Discussion
Save for Later (0)
Please login to bookmarkClose

No account yet? Register

Coscinodiscus

Microfossile often present in petroleum producing formationsare those of__________?

A: Diatioms

B: Heliozoans

C: Radiolarians

D: Foraminiferans

Answer & Explanation Discussion
Save for Later (0)
Please login to bookmarkClose

No account yet? Register

Diatioms

In mouth cavity of many molluscs there is a rasping tongue like structure_________provided with many horny teeth.

A: Ligule

B: Radula

C: Mantle

D: Muscle

Answer & Explanation Discussion
Save for Later (0)
Please login to bookmarkClose

No account yet? Register

Radula

All insects have how many parts of legs?

A: 4

B: 2

C: 3

D: 6

Answer & Explanation Discussion
Save for Later (0)
Please login to bookmarkClose

No account yet? Register

3

In all arthropods,the body is covered with a chittinous cuticle which is secreted by the____________?

A: Endodermis

B: Mesophyll

C: Chitin

D: Epidermis

Answer & Explanation Discussion
Save for Later (0)
Please login to bookmarkClose

No account yet? Register

Epidermis

Malphighian tubules absorb waste materials and salts from__________?

A: Blood

B: Lymph

C: Gut

D: Hemolymph

Answer & Explanation Discussion
Save for Later (0)
Please login to bookmarkClose

No account yet? Register

Hemolymph

Which of the following filtrate contains excessive amount of amino acids, glucose, and salts?

A: Glomerular filtrate

B: Filtrate passing through ascending limb

C: Filtrate passing through distal conveluted tubule

D: Filtrate passing through collecting tubules

Answer & Explanation Discussion
Save for Later (0)
Please login to bookmarkClose

No account yet? Register

Glomerular filtrate

Mammalian kidney, under restricted water supply can conserve water by over ________ % reabsorption of glomerular filtrate

A: 80.50%

B: 90.50%

C: 95.50%

D: 99.50%

Answer & Explanation Discussion
Save for Later (0)
Please login to bookmarkClose

No account yet? Register

99.50%

1 19 20 21 22 23 127