A zygote is:
A. haploid.
B. diploid.
C. polyploid.
D. monoploid.
B
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Which of the following is not true about childcare in the Spanish-speaking world?
A. Family members often care for children. B. Families view caring for other family members as a responsibility. D. Families are heavily reliant on daycare centers. D. Families often visit and stay with other family members.
In biology lab, your instructor informs you that carbon-14 dating will demonstrate the use of determining the age of a fossil. Using only this information, you estimate that the age of the fossil must be less than about years old.
A. 75,000 B. 1.3 billion C. 40,000 D. 100,000 E. 300,000
Errors in meiosis, called ________, can affect the number of sex chromosomes or autosomes in a gamete
Fill in the blank(s) with correct word
Why is hydrogen oxidation widespread in the tree of life?
a. The hydrogen couple is extremely electronegative. b. Most microogranisms are aerobes. c. It is necessary to create reducing power. d. Phototrophs may be found in every domain.