In mammals egg are microlecithal and isolecithal because these are :-

1 Answer

Answer :

In mammals egg are microlecithal and isolecithal because these are :- A. Oviparous B. Viviparous C. Ovoviviparous D. None of them

Related questions

Description : Oligolecithal or microlecithal egg are those which have:-

Last Answer : Oligolecithal or microlecithal egg are those which have:- A. No yolk B. Small yolk C. More yolk D. Moderate yolk

Description : Isolecithal eggs are found in :-

Last Answer : Isolecithal eggs are found in :- A. Birds B. Frogs C. Insects D. Humans

Description : Microlecithal eggs are found in :-

Last Answer : Microlecithal eggs are found in :- A. Reptilia + Aves B. Amphibia + Aves + Reptilia C. Reptilia + Aves + Chiroptera D. Eutheria

Description : In human beings, the eggs are (a) mesolecithal (b) alecithal (c) microlecithal (d) macrolecithal.

Last Answer : alecithal

Description : Assertion : The duct - billed Platypus and the spiny anteater, both are egg - laying animals yet are grouped under mammals. Reason : Both of them have

Last Answer : Assertion : The duct - billed Platypus and the spiny anteater, both are egg - laying animals yet ... false D. If both Assertion and Reason are false.

Description : An egg - laying mammals is

Last Answer : An egg - laying mammals is A. Kangaroo B. Platypus C. Koala D. Whale

Description : Eggs of egg laying mammals are

Last Answer : Eggs of egg laying mammals are A. Marcolecithal B. Alecithal C. Mesolecithal D. Telolecithal

Description : Egg laying mammals are mostly native of

Last Answer : Egg laying mammals are mostly native of A. India B. Australia C. Africa D. Arabia

Description : Adaptation for approach of sperm of egg in mammals -

Last Answer : Adaptation for approach of sperm of egg in mammals - A. Sperm kept inactive till ejaculation B. Very ... C. Peristalsis of oviduct D. All the above

Description : In mammals , egg is fertilised in :-

Last Answer : In mammals , egg is fertilised in :- A. Ovary B. Fallopian tube C. Utreus D. Vagina

Description : Dinosaurs were - (1) mammals that became extinct (2) large herbivorous creatures which gave rise to hippopotamus species (3) egg-laying mammals (4) reptiles that became extinct

Last Answer : (4) reptiles that became extinct Explanation: Although the word dinosaur means "terrible lizard," the name is somewhat misleading, as dinosaurs are not lizards. Rather, they represent a separate ... be dinosaurs, most of the scientific community believed dinosaurs to be sluggish and cold-blooded.

Description : Write down the characteristics of egg laying mammals? 

Last Answer : i) These mammals lay eggs. Mostly two eggs are laid in one year. ii) Eggs are laid in burrows of animals. iii) Young ones are hatched from eggs. iv) Their egg laying ... shows their relationship with reptiles. v) Their common examples are duck bill platypus, spiny anteater. 

Description : Dinosaurs were (1) mammals that became extinct (2) large herbivorous creatures which gave rise to hippopotamus species (3) egg-laying mammals (4) reptiles that became extinct

Last Answer : reptiles that became extinct

Description : In mammals, the testes occur in scrotal sacs outside the abdomen because of the

Last Answer : In mammals, the testes occur in scrotal sacs outside the abdomen because of the A. ... deferens D. Requirement of low temperature for spermatogenesis

Description : Mammals other than higher primates do not suffer from gout because they (A) Lack xanthine oxidase (B) Lack adenosine deaminase (C) Lack purine nucleoside phosphorylase (D) Possess uricase

Last Answer : Answer : D

Description : An egg of bird was coated with varnish and then incubated . The egg did not hatch because the developing embryo

Last Answer : An egg of bird was coated with varnish and then incubated . The egg did not hatch because the ... supply D. died because of toxic effect of varnish

Description : A fresh egg sinks in pure water but floats in salty water. This is because (a) Saline water is denser than pure water (b) Saline water is lighter than pure water (c) The viscosity of saline water ... than that of pure water (d) The surface tension of saline water is lower than that of pure water

Last Answer : Ans:(a)

Description : An egg sinks in soft water but floats in a concentrated solution of salt because – (1) Egg absorbs salt from the solution and expands (2) Albumin dissolves in salt solution and egg becomes lighter (3) The density of salt solution exceeds the density of eggs (4) Water has high surface tension

Last Answer : (3) The density of salt solution exceeds the density of eggs Explanation: Following the density principle, the density of the egg compared to the density of the tap water is lesser (the density principle ... and that is why an egg sinks in soft water but floats in a concentrated solution of salt.

Description : Bryophytes are dependent on water, because (a) water is essential for their vegetative propagation (b) the sperms can easily reach upto egg in the archegonium (c) archegonium has to remain filled with water for fertilization (d) water is essential for fertilization for their homosporous nature.

Last Answer : (b) the sperms can easily reach upto egg in the archegonium

Description : An egg sinks in soft water but floats in a concentrated solution of salt because (1) egg absorbs salt from the solution and expands (2) albumin dissolves in salt solution and egg becomes lighter (3) the density of salt solution exceeds the density of eggs (4) water has high surface tension

Last Answer : the density of salt solution exceeds the density of eggs