. W budowie ssaków występuje wiele cech, które są wynikiem przystosowania do życia na lądzie. Dokończ zdania tak, aby zawierały prawdziwe informacje.
Małżowina uszna ułatwia …………………………………………………………………………………………. . .
Pazury chronią ………………………………… oraz ułatwiają ……………………………………….……….. .
Gruba skóra pokryta ……………………………………………………… chroni ciało ssaków przed
…………………………………………………………………………………………… ……………………………………. .
Płuca zbudowane z ………………………………………………………….……….. zapewniają sprawną
…………………………………………………………………………………………… …………………….……………… .

2. Niedźwiedź polarny żyje w Arktyce, gdzie temperatury powietrza spadają nawet do kilkudziesięciu ˚C poniżej zera. Temperatura ciała tego ssaka nawet przy mrozie sięgającym -40 ˚C nie spada poniżej 37 ˚C, co pozwala mu przetrwać w tych niezwykle trudnych warunkach środowiska.
a) Wskaż cechę ssaków, dzięki której niedźwiedź polarny może żyć w tak skrajnych warunkach środowiska …………………………………………………………………………………………… .
b) Jakie przystosowania w budowie ciała umożliwiają niedźwiedziowi polarnemu życie w Arktyce? …………………………………………………………………………………………… ………………………
…………………………………………………………………………………………… ……………………………………. .

Which of the following is a good definition for the word adaptation? question 1 options: a trait that an organism survive and reproduce in its environment. a change in an organism's environment. the way in which animals obtain food. a temperature change that can cause the extinction of plants and animals.

Is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance

Which characteristics must an object possess in order to be considered alive?