Answer:
An older female squirrel that sounds an alarm call to warn her relatives of an approaching aerial predator
Explanation:
Kin selection is the evolutionary adaptive strategy that increases the survival rate of the organism by increasing the reproductive success of the genes and other close relative genes.
The organism increases the chance of survival of the close relatives and their offspring at their own cost.
The kin selection behavior is observed in many species including humans, bees, wasps, squirrels, and many others.
In the given question, the squirrel especially an old squirrel gives an alarming call when a predator comes in their range which allows enough time to run away from the predators and increase the reproductive rate of the population.
Thus, the selected option is correct.
DDT was used to control the malaria-causing mosquitoes. DDT killed them but accumulated in the soil also, through which entered animals and humans via food. There, it gets stored in the fat tissue and is very difficult to breakdown. The predator animals, feeding upon smaller animals, got DDT in their bodies from the smaller animals and DDT thus, magnified to the top level of the food chain. The government realized this and banned DDT.
Answer:
Explanation:
Aim for Consistency. The quickest and easiest way to get better is simply to climb everything you can, everywhere you can, in every different style. ...
Climb Intentionally. ...
Challenge Yourself. ...
Don't Let Fear Get in Your Way. ...
Learn the Art of the Redpoint. ...
Forget About Grades.
<h2>
Answer:</h2>
Following are the examples of the given associations:
- Mutualism- Oxpecker and rhinoceros.
- Commensalism- Birds and tree.
- Parasitism- Sashimi and round worm.
<h2>
Explanation:</h2>
- <u>Mutualism</u>- It is a the interaction of two organisms of two different species in which each of them gets benefited from each other. For example- Oxpecker eats the ticks, pests and other parasites present on the body of Rhinoceros and hence both of them get benefited as the oxpecker gets food and in return rhinoceros gets pest control.
- <u>Commensalism</u>- it is a association in which two organisms get interacted in which one get benefited and the other is neither benefited nor harmed. For example birds living on trees generally do not harm tree in any case but in return gets food and shelter from the tree.
- <u>Parasitism</u> in aquatic environment- it is defined as the interaction of two organisms in which a organism lives in or on other organism of another species (its host) and benefits by deriving nutrients from the host at the host's expense. For example round worm or tapeworm obtain food and even complete their life cycle inside fishes like Sashimi and harms them.
Result: The above are the examples of the given associations.