In the final frenzy of reproduction and death, social amoebas secrete proteins that help preserve a starter kit of food for its offspring. Lectins create a different way for the amoebas to treat ...
When her species needs replenishing, what’s a mother dragon to do? She can reproduce the old-fashioned way, by mating with a male and laying eggs. Or she can lay eggs without having mated ...
This story appears in the November 2016 issue of National Geographic magazine. In sexual reproduction—the way most life-forms procreate—each parent provides half an offspring’s chromosomes.
To reproduce, animals need a male and female. Together they can create offspring, or babies. Some animals, such as chickens, fish and snakes, lay eggs which contain their offspring. Other animals ...
Between 1.8 billion and 800 million years ago, earthly life was in the doldrums. During this period, called the "boring ...
Look at these competency-based questions for Class 12 Biology chapter 11 Reproduction In Organisms and the answer key.
Organisms as diverse as amoebas and elephants frequently live ... Within these societies, why do some individuals attempt to reproduce, while others delay their own reproductive efforts to help ...
Giant isopods, giant jellyfish, even giant amoebas, the list goes on ... A larger animal needs more food, takes longer to ...
Sexual vs. asexual reproduction Reproduction as we commonly conceive it, not only in humans but in all species, occurs sexually, that is, from the combination of the genetic material of two ...
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