The water from a trough and the temperature outside would be abiotic factors. the grass it grazes on or a cowbird picking bugs off of it would be biotic factors (for future reference, abiotic factors are caused by nonliving things, and biotic factors are caused by other organisms)
Answer: If we kill all the organisms in one trophic level, then transfer of energy as well as matter to next higher level will stop. It will lead to over- population at one particular level causing amongst the individuals. This would seriously disturb the food chain and can cause the collapse of an ecosystem even.
Answer:
b. multicellular fungus
Explanation:
In a recent study, it was discovered that there was a genetic relationship between multicellular organisms like protozoa and animals and fungi have a common ancestor as their ancestors had contact about 1.1 billion years ago.
Therefore, the organism that was most likely the most recent common ancestor of all animals is multicellular fungus
Answer:
Option (4).
Explanation:
Corpus callosum is also known as callosal commissure. This area is present beneath the cerebral cortex of the brain. Corpus callosum is present in placental mammals only.
The corpus callosum connects the left and right side of body.The severed or improper functioning of corpus callosum may disturb the coordination of action and speech of the right and left side of body.
Thus, the correct answer is option (4).
