Do earthworms have a mouth?
Do worms have mouths, and what do they eat? Worms have strong, muscular mouths, but no teeth. They have a varied diet that includes decaying vegetation, soil, dead animals and even some living organisms.
What did earthworms eat?
What do earthworms eat?
- Composting earthworms feed on decaying plant matter and manure that is near the start of the decomposition process.
- Epigeic earthworms live in leaf litter and rotting logs and feed on organic matter that is partially decayed.
- Anecic earthworms pull decaying plant matter in to their burrows.
What animal takes the biggest poop?
the blue whale
Why do we call it a cobweb?
Spider webs are called cobwebs because the old English word for spider was coppe. Turns out that cobwebs are only produced by Theridiidae (cobweb spiders) and Linyphiidae (money spiders) – all others should be just known as spider webs.
What is the difference between a spider web and a cobweb?
“Spider web” is typically used to refer to a web that is apparently still in use (i.e. clean), whereas “cobweb” refers to abandoned (i.e. dusty) webs. However, the word “cobweb” is also used by biologists to describe the tangled three-dimensional web of some spiders of the family Theridiidae.
Are cobwebs just dust?
Cobwebs are a sign of spiders. The stray spider silk left behind is incredibly sticky and a magnet for pollen, dust particles, and other debris. Combating the sticky strands is not that tough — and can be done with some distance between you and the deserted webs.
Who invented cobweb?
Why does government imposed minimum price?
What Is Meant by Price Control? Price control is an economic policy imposed by governments that set minimums (floors) and maximums (ceilings) for the prices of goods and services in order to make them more affordable for consumers.
When supply is high and demand is low the price of an item will?
If there is a decrease in supply of goods and services while demand remains the same, prices tend to rise to a higher equilibrium price and a lower quantity of goods and services. The same inverse relationship holds for the demand for goods and services.
What are the 3 economic models?
There are four types of models used in economic analysis, visual models, mathematical models, empirical models, and simulation models. Their primary features and differences are dis- cussed below.
What is a good economic model?
This chapter introduces seven key properties, whether they already be widely accepted or have yet to be accepted at all, that a good economic model should possess: 1) parsimony, 2) tractability, 3) conceptual insightfulness, 4) generalizability, 5) falsifiability, 6) empirical consistency, and 7) predictive precision.