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Learn more about this topic: Tadpoles | Definition, Development & Life Cycle from Chapter 4 / Lesson 26 48K Learn what a tadpole is and explore the tadpole life cycle, discovering how long it takes a tadpole to develop into an adult frog. ...
The life span of red blood cells in the amphibian larvae, Rana catesbeiana Nearly one hundred amphibian tadpoles were made anemic by phenylhydrazine injection. During the recovery period radioactive thymidine was incorporated into the DNA of the nucleated amphibian red blood cells. Over the next 135...
tadpole, or polliwog, has an oval body with a vertically flattened tail. At this point tadpoles are completely aquatic and mostly vegetarian. At the end of the tadpole phase frogs undergo a process called metamorphosis, during which time the tadpole develops very quickly- within a span of 24 ...
so chances are most of us have seen one while outside. As such an interesting ancientinsectwith over 5,000 different species, it makes sense to wonder just how long they live and how their lifespan compares to other bugs. Let’s take a look at the dragonfly lifespan and explore what ...
between inter-birth interval and lifespan suggested that genes associated with producing children rapidly were associated with a shorter lifespan. These results showed that selection could have shifted the average birth interval over time, due to the additive genetic basis of this trait, but that a...
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they are uniformly green to brown in colour, with yellow or orange eyes. African cat snakes are slender and grow to about 0.5–0.7 metre (1.6–2.3 feet) in length, though some may grow to 1.4 metres (about 4.5 feet). They feed upon frogs,toads, andtadpoles, and females lay 2–8 egg...
of the larva’s third pair of mouthparts. Disproportionately large, the mask folds beneath both the head and thorax when it is not in use. At the end of the mask is a set of fanglike pincers used to seize prey such as worms, crustaceans, tadpoles, and smallfish. Different species of ...
At the physiological level, trade-offs are caused by competitive allocation of limited resources to one life history trait versus the other within a single individual, for example when individuals with higher reproductive effort have a shorter lifespan or vice versa (Figure 2B). A helpful way to...