Meerkats are small desert mammals that live in groups of 20–50 animals. You observe a female meerkat who spends all of her time caring for the 1-year-old offspring of her sister (her nieces and nephews)
The aunt is capable of reproduction but has not reproduced.
Which of the following would contribute to the evolution of this behavior pattern?
A. The odds of any one female reproducing
are completely random.
B. Offspring require the efforts of a single
adult (the mother) in order to be successful.
C. Offspring require the efforts of at least two
adults in order to be successful.
D. Offspring are independent at the age of
three months, with no adult care after that
point.
C
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Sulfur can be obtained from inorganic sources only.
Answer the following statement true (T) or false (F)
The process of evaluating the quality of information before accepting it is called ________
a. critical thinking b. the scientific method c. deductive reasoning d. inductive reasoning e. making a prediction
Which of the following male and female reproductive organs is correctly matched with its function
A) ovaries -transports sperm to the vagina B) uterus- site of fetal development C) vagina - transport eggs to uterus D) penis - production of sperm and male sex hormones E) uterine tubes - receives sperm; acts as birth control F) testes - production of eggs and female sex hormones
Interspersed repeated DNA
A) constitutes 25%–40% of most mammalian genomes. B) is located in one region of most mammalian genomes. C) is approximately 105–107 bp in length for each repeat. D) can be classified into gene families, such as the Alu family. E) constitutes 20%–40% of most mammalian genomes and can be classified into gene families, such as the Alu family.