Question

D. Answer the following questions.
1. Differentiate between vertebrates and invertebrates,
2. How are frogs and lizards different from each other?
3. Why do animals migrate?
4. Describe the teeth of herbivores, carnivores, and omnivores.​

Answer 1

$\qquad$ ❏ Differentiate between vertebrates and invertrebrates.

$\qquad$ ☀ Vertebrates are the organisms which have their backbone. Examples : Mammals etc.

$\qquad$ ☀ Invertebrates are the organisms which do not have backbone. Examples : Flatworms etc.

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$\qquad$ ❏ How are frogs and lizards different from each other?

$\qquad$ ☀ Frog is an amphibian. It has smooth and porous skin that helps it to breathe when present in water.

$\qquad$ ☀ Lizard is a reptile. It has a dry, hard skin with scales present on it to help it survive in hot climate.

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$\qquad$ ❏ Why do animals migrate?

$\qquad$ ☀ Animals migrate from one place to another mainly in search of food, shelter and to escape the harsh weather conditions.

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$\qquad$ ❏ Describe the teeth of herbivores, carnivores and omnivores.

$\qquad$ ☀ Herbivores have broad, flat molars which are used for grinding plant material.

$\qquad$ ☀ Carnivores have large, sharp canines to tear down the meat and flesh.

$\qquad$ ☀ Omnivores have incisors for biting, canines like carnivores and molars to chew like omnivores.

Answer 2

$\small{\bold{ \blacksquare { \: differentiate \: between \: vertebrates \: and \: invertebrates }}}$

$\begin{array}{ ||c|c||} \bigstar \: \red {\bold{vertebrates}}& \bigstar \: \red {\bold {invertebrates}} \\ \rm{\dagger \: they \: have \: backbone}& \rm{\dagger \: they \: do \: not \: have \: backbone }\\ \rm{ \dagger \: they \: do \: not\: have \: exoskeleton}& \rm{\dagger \: they \: have \: exoskeleton} \\ \rm{ \dagger \: for \: example - birds \:and \: fish}& \rm{\dagger \: for \: example - flatworms \: and \: arthropods} \end{array}$

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$\blacksquare \: \bold { how \: are \: frogs \: and \: lizard \: different \: from \: each \: other}$

$\purple{ \sf \leadsto \: lizard \: is \: a \: reptile.} \\ \purple{\sf \leadsto \: frog \: belongs \: to \: amphibians.}$

$\underbrace{ \rm\circ \: now \: lets \: know \: the \: difference \: between \: them : }$

$\begin{array}{ ||c|c||} \bigstar \: \red{\bold{ frog}}& \bigstar \: \red{\bold{lizard }}\\ \rm \star \: skin \: is \: smooth& \rm \: skin \: is \: dry \: and \: hard \\ \rm \: \star \: eggs \: are \: covered \: with \: gel& \rm \: eggs \: are \: covered \: with \: hard \: protective \: covering \\ \rm \: \star \: they \: live \: on \: land \: as \: well \: as \: on \: water& \rm \: \star \: they \: usually \: live \: on \: land \\ \rm \: \star \: fertilization \: is \: external& \rm \: fertilization \: is \: internal\end{array}$

$\uparrow\underline{ \overline{ \fbox{ \: so \: by \: these \: differences \: we \: get \: to \: know \: how \: frogs \: are \: different \: from \: lizards.}}}$

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$\bold{ \bigstar \: why \: do \: animals \: migrate}$

$\blacktriangleright \bold \purple{migration - } \bold\pink{when \: animals \: or \: birds \: travel \: from \: one \: part \: of \: the \: world \: to \: another \: at \: the \: same \: time \: every \: year.}$

$\underline{ \underline \bold{ \ddagger \: causes \: of \: migration : }}$

$\rm \odot \: for \: food \\ \rm \odot \: for \: suitable \: place \: to \: live \: in\\ \rm\odot \: for \: raising \: their \: young \: ones$

$\rm \odot \: and \: even \: sometime \: for \: hibernation \: also.$

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$\bigstar \: \bold{describe \: the \: teeth \: of : }$

$\sf• \: herbivorous \\ \sf• \: carnivorous \\ \sf • \: omnivorous$

$\bold{ \maltese \: herbivorous : } \\ \bold \red{they \: have \: flat \: molars \: and \: broad \: teeth}$

$\bold{\maltese \: carnivorous :} \\ \bold \red{they \: have \: long \: and \: sharp \: pointed \: teeth}$

$\bold{ \maltese \: omnivorous} \\ \bold \red{they \: also \: have \: sharp \: and \: pointed \: teeth}$

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