Primates reproductive strategies (compared to other mammals)

a. are similar for males and females

b. are r-selected

c. is always monogamy

d. are k-selected

The correct answer is D. are K-selected

Explanation:

In biology, the term k-selected is used to describe species in which there is high parental investment, but a low quantity of offspring. This implies in these species organisms have less offspring but invest in each new organism to guarantee survival. This reproductive strategy is the opposite of r-selected in which there is a high rate of offspring but little parental investment, this causes some individuals to survive while others die.

In the case of primates, they are k-selected because most of the species in primates including apes, gorillas, and humans have only one or two offspring each time, also, the parental investment is higher as offspring stays with parents for a longer time; at the same time, this keeps the population stable as higher parental investment guarantees most offspring survives. Thus, the primates' reproductive strategies are K-selected.

answer; the correct answer is (beta)

americans began to notice growing differences between the northern and southern sections of the country. there were more people living in cities in the north, which made it more urban. more people lived on farms in the south, which made it more rural. while many people were farmers in the northern states, there were now other ways to make a living, such as working in mechanical cotton gins factories manufacturing cloth, tools and other goods. people in the north supported high tariffs on goods imported from europe because the extra cost encouraged people to “buy american” instead. in the southern states, planters did not like tariffs because they sold most of their production to europe and bought their tools from there as well. southerners believed the protective tariff was something that only northern factory owners keep their profits high. so the southern politicians came up with an idea. they would opt out. they would simply ignore the protective tariff. it was ‘null and void’ in south carolina. the state would not collect the taxes on goods imported into south carolina, no matter what the president said they had to do. this decision led to the nullification crisis.