Science activity on animal reproduction, aimed at fourth or fifth year students.
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SCHOOL: DATE:
PROF: CLASS:
NAME:
MOST ANIMALS HAVE TWO SEX MALE AND FEMALE. WHEN TWO ANIMALS OF THE SAME SPECIES AND OF DIFFERENT SEX CROSS, THEY CAN BEAR PUPPIES.
THE ANIMALS ARE DIFFERENT, THEREFORE THE WAY OF BIRTH AND BREEDING ARE DIFFERENT, THERE ARE ANIMALS THAT ARE OVIPARES (BORN FROM EGGS) AND VIVIPARS (BORN FROM THE MOTHER'S BELLY).
EVEN AMONG ANIMALS THAT HAVE THE SAME ORIGIN THERE ARE DIFFERENCES.
AMONG THE OVIPARES THERE ARE ANIMALS THAT AFTER CROSSING THE MOTHERS PRODUCE EGGS AND THE PUPPIES ARE BORN FROM THE EGG (BIRDS, ALLIGATORS, TURTLES, ETC); OTHER ANIMALS AFTER THEY CROSS PRODUCE EGGS AND THE ANIMALS AFTER THEY ARE BORN ON A METAMORPHOSIS (FROG, FROG, ETC); AND IN SOME, SUCH AS FISH, THE MOTHERS RELEASE THE EGGS INTO THE WATER AND THE PARENTS THE SPERMATOZOIDS THE TWO MERGE TO FORM EGGS WITHOUT THE PARENTS HAVING CONTACT (SOME TYPES OF FISH).
AMONG THE VIVÍPAROUS THERE IS THE DIFFERENCE IN THE TIME OF PREGNANCY:
ACTIVITIES
1) WHAT ARE THE SEX OF ANIMALS?
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2) WHAT IS NECESSARY FOR REPRODUCTION?
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3) WHAT ARE OVIPAROUS ANIMALS?
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4) WHAT ARE LIVEPAPER ANIMALS?
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5) FROM THE EXAMPLES OF THE PREGNANCY TIMES OF VIVIPAUS ANIMALS CITED IN THE TEXT, TELL WHICH ANIMAL HAS THE LARGEST AND SMALLEST PREGNANCY.
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For ACCESS
At answers are in the link above the header.
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