Question

1. A small group of mice are released on an island without mice but with abundant food for mice and no predators. Initially, the growth of the mouse population will be limited mainly by what?A)only density-independent factors B)the biotic potential C)the carrying capacity D)only density-dependent factors

2. Research has revealed that the development of psychological well-being and growth is influenced by what? A)pheromone levels B)associative learning C)imprinting D)physical contact E)sensitization

3. In many animals, ________ guides learning by determining what type of information can be learned, meaning that what an animal can learn is often biologically influenced. A)operance B)instinct C)consciousness

Answer 1

1. density-dependent factors  include predation, inter- and intraspecific competition, accumulation of waste, and diseases such as those caused by parasites. Usually, the denser a population is, the greater its mortality rate

Carrying capacity is the largest population size that an ecosystem can sustainably support without damage the ecosystem. Disease, competition, predator-prey interaction, resource use and the number of populations in an ecosystem all affect carrying capacity.

Biotic potential is the ability of a population of living species to increase under ideal environmental conditions. That is when there sufficient food available, no predators, and a lack of disease. An organism's rate of reproduction is the  primary determining factor for biotic potential.

So answer to the first question is option B- biotic potential.

2. When we hug someone, a hormone called Oxytocin is released in our body, which effectively reduces our stress levels and helps in psychological well being.  Also our blood pressure sinks and we experience less anxiety during a hug. This sense is essential to children's growth of physical abilities, language and cognitive skills, and social-emotional competency. Touch impacts short-term development during infancy and early childhood and also has long-term effects. So answer is option D Physical contact.

3. From experience an animal adjust its behavior that is, it learns when experience at one time provides information that will be useful at a later time. For animals learning is seen as a tool for survival and reproduction because it helps an animal to adjust its behaviour to the particular state of its environment. An animal needs to know such things as what food is good to eat, when and where to find it, whom to avoid and approach, with whom to mate, and how to find its way home. These things are not genetically preprogrammed because they depend on the particular circumstances of an individual’s time and place. Thus most of the learning performed by animals is instinctive learning. So answer is option b instinct.