corn snakes, and pythons. Species, such as rattlesnakes, are ovoviviparous. They keep their eggs inside of their bodies until they hatch. Other species, such as garter snakes and boa constrictors, are viviparous
They may influence people for years, and even for a lifetime.They provide them with courage to go on or one more reason to give up.After moving to another cityMy ninth-grade year is even 76Walking into the dining hall for the first timeI knew 77 while other kids had good friends....
Bears, snakes and frogs are such animals.Winter is cold in northern countries. But animals are smart. They can spend winter safely.根据短文内容,选择正确答案。 (5分)( )36. Many animals travel to other places to A. find more beautiful places B. keep warm or find food easily C. make ...
abortion.Goatsmay excrete the organism for up to 2 to 3 months in vaginal discharge. If ewes become infected and abort, they usually clear the organism within 2 to 4 weeks.3Nonaborting infected femalesmay give birth to infected kids or lambs that are capable of shedding the organism.5,6,...
Most female skunks give birth during the late spring or early summer, typically between April and June. Pregnant skunks will find a den without a male and gestate their young for 60 to 75 days. At birth, baby skunks, or kits, cannot see and measure only around 4 inches long. During th...
a sudden and massive burst of light that can outshine a whole galaxy. Supernovae leave their mark on the skies as nebulae, clouds of solar debris that make for many of the most iconic astronomical images ever captured. Supernovae can give birth to black holes and neutron stars, and their...
It’s long been a scientific dream: to give people a special vaccine before birth to prevent them from getting terrible illnesses. Gene editing (基因编辑) is one way in which we could do this. But this method has also...
How do boa constrictors protect themselves? What do snakes eat? How long can a boa constrictor go without eating? How does a boa constrictor kill its prey? What do Burmese pythons eat in the Everglades? How do boa constrictors give birth?
Do amphibians lay eggs or give birth to live young? Do amphibians have internal or external fertilization? Do amphibians have two-chambered hearts? Can amphibians lay eggs on land? Do amphibians have heart chambers? Do amphibians eggs have shells?
Watch complete video answer for “Why do fish and frog lay more number of eggs whereas cow and ” of Biology Class 8th. Get FREE solutions to all questions from chapter REPRODUCTION IN ANIMALS.