Answer:
Merocrine, Holocrine
Explanation:
Merocrine glands are the kind of exocrine glands that secretes substance on the surface of epithelial via duct. The exocrine glands are salivary, mucous, and mammary glands. Merocrine is the term used for classification of exocrine glands and its secretions. Tear glands secrete substances by exocytosis with the help of secretory vesicles.
The holocrine glands secretes oily substances from the glands that keeps skin hydrated and moisturized. The Skin consist of sebaceous glands and the eyelids consist of meibomian glands are the examples of holocrine glands. The secretion of holocrine glands damages the cell itself.
That would be Sternum as it is also called the "breastbone".
The correct answer is "limited prey is driving the bears to seek food in human settlements".
Due to the warming of the Arctic waters, the ice is melting, resulting in a serious decline of floating winter ice. Polar bears need these floating parts of ice to hunt, therefore this new situation limits the hunting opportunities of the bears. That is why polar bears are driven to human settlements to look for food.
The correct answer is - predator species in a community.
In the terrestrial ecosystems, a very good and usually sure predictor of the biodiversity is the existence of a predator species. The more predator species there are, the higher the biodiversity, and vice versa, the less predator species, the lesser the biodiversity.
The reason why the predators are such a good predictor of the biodiversity is that they are the species that are on the top of the food chain. That means that the predators are dependent for their survival on all the other species bellow them in the food chain, which is pretty much all species apart from themselves.
If a predator is present, than there has to be pray. If there's pray, omnivores and herbivores, than there has to be plants. All of the organisms are connected to one another, and the ones on the top of the food chain are the most dependent on the others, thus their existence usually means a healthy ecosystem with higher biodiversity.
