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what is connective tissue properthe name connective tissue proper is used to assign the connective tissue that fills interstitial spaces as opposed
of which type of tissue are cartilages and bones madeare the cells of the connective tissue far or near to the othersthe relative great spacing among
what is the typical biological function of the connective tissues how is this function associated to the main features of its cellsthe typical
what are muscle tissues how is the function of this tissue related to the typical characteristics of its cells muscle tissues are tissues made of
of which cells is the nervous tissue constituted how is the generic function of this tissue related to the characteristics of the main cell type that
what are epithelial tissues what are their general function and how is that function associated to the features of the tissueepithelial tissues also
from the zygote pluricellular organisms are produced by serial mitosis would this formation be possible if every cell made by mitosis had an
what is the logical order in which the concepts of atoms molecules cells up to biosphere are associatedatoms form molecules that structure cells that
are the limbs modified into wings of bats and the wings of birds examples of evolutionary analogy or homology what about whale fins compared to fish
is fecundation in mammals internal or external fecundation in mammals is internal with copulation in the contemporary world human technology is able
how do placental mammals reproduceplacental mammals reproduce sexually they have internal fecundation and they are viviparous ie their embryo creates
do all mammals have a placentamammals of the monotreme group echidnas platypus are oviparous egg-laying and they do not have a placenta mammals of
what are the three major groups into which mammals are dividedthe three groups into which mammals are divided are monotremes or prototherian eg
what are the typical features of mammalsthe typical features of mammals are body more or less covered with hair presence of the diaphragm muscle that
how different are reptiles and birds concerning the maintenance of body temperature are birds rare in polar regionsreptiles are heterothermic ie they
what are the predominating chemical compounds respectively in eggshell white and yolkthe eggshell is essentially made of calcium carbonate the white
how do birds reproducebirds like each vertebrate have sexual reproduction their embryos develop within shelled eggs having extraembryonic membranes
what similarities do birds and reptiles share regarding external coverage reproduction and excretion regarding external coverage birds are same to
which is the type of nitrogen waste birds produce why does this feature besides being an adaptation to the terrestrial environment also mean an
how is the circulatory system of birds characterizedbirds as every vertebrate have a closed circulatory system the heart is same to the mammalian
what is an example of a hypothesis which may explain why there is not a big representation of the class reptilia found in polar regionsbeings of the
concerning the maintenance of body temperature how do beings of the class reptilia classifylike fishes and amphibians beings of the class reptilia
compared to amphibians what are the two reproductive novelties of beings of the class reptilia for the survival in dry environmentscompared to
how is reproduction done in beings of the class reptiliathese beings reproduce sexually by internal fecundation by means of copulation among male and
how has the importance of the brain evolved from fishes to reptilesfrom the least to the most difficult brain structure it is evident that the brain