1. Bees pollinate flowers and flowers provide nectar for the bees. "M"
2. A tapeworm attaches to the intestines of animals and absorbs their nutrients. "P"
3.Tiny birds helping to keep a crocodile's mouth clean by eating scraps of
food caught between the crocodile's teeth. "M"
4. A tree frog using a plant for shelter from the rain. "C"
5. A tick feeding on the blood of a deer. "P"
Explanation:
Mutualism : If 2 or more species are having an association and the relation is useful to both the organisms in relation, is termed 'mutualism'.
eg: In pollination bees transfer pollens and help reproduce flowering plants and bees get nutrition from the nector.
The plover bird comes to crocodile's mouth as it gives invitation to it to cleanse its mouth and food stuck between the teeth because crocodile cannot go flossing. In turn plover birds gets its food. In this relation both bird and crocodile benefited.
Commensalism: This is a relation between two organisms or species in which one partner is benefited while other neither gets harmed nor benefited.
eg :A tree frog utilizes the shade of plants and hide in the plant to get saved from prey in turn plant does not get anything.
Parasitism: In this association parasite lives in the organism and benefits from it but host gets harmed with this association.
eg: The tapeworm living in intestine of animals attaches to draw nutrition in turn animal gets disease caused by it.
Tick receive nutrition and the deer gets the disease.
Answer:
Grass-fed beef is the most sustainable choice. Grass-fed beef represents a net gain for the human food supply because cows eat grasses that we can’t eat (from land that is typically unsuitable for human crops) and turn it into beef that we can eat.
Explanation:
Cattle raised on a primarily foraged diet are termed grass-fed or pasture-raised; for example meat or milk may be called grass-fed beef or pasture-raised dairy. The term "pasture-raised" can lead to confusion with the term "free range", which does not describe exactly what the animals eat.
That said, grass-fed cows eat (mostly) grass, while grain-fed cows eat (mostly) an unnatural diet based on corn and soy during the latter part of their lives. To maximize growth, the cows are often given drugs, such as antibiotics and growth hormones.
I would say D) all of the above.
Pair-bonding in a population of prairie voles can be prevented by . B) administering a drug that inhibits the brain receptor for vasopressin in the central nervous system (CNS) of males
<h3>
what is pair bonding?</h3>
Pair bonding is an evolutionary feature that may be important for reproduction as well as individual and species survival.
The proximate processes underlying many types of good social behaviours, such as pair bonding and maternal-infant behaviour, are shared by brain and endocrine systems.
The brain systems that rely on peptides, such as oxytocin, vasopressin, opioids, CRH, and associated hormones, are at the heart of pair bonding.
Neuropeptides also help to integrate the autonomic and endocrine effects of pleasant social encounters with behavioural states that promote social bond creation and maintenance.
learn more about pair bonding refer:
brainly.com/question/14521780
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