How many stars in the unvirse?

100 billion

500infinty

300 infitity

400 billion

A. En los animales, las células hijas haploides producidas por división meiótica se llaman

Select the correct answer. Which is the most accurate description of an ecosystem? A. An ecosystem consists of a biological community-the physical and chemical factors-that make up its abiotic environment. B.

The continental of Africa is found in which plate

Cell volume increase faster than cell surface area because

Which of the following terms describes the DNA-protein complexes that look like beads on a string? a) 30-nanometer fiber b) Histones c) Nucleosome d) Chromatin

Which route represents the path taken by the European explorer Christopher Columbus? A) 1 B) 2 C) 3 D) 4

Which gas is the most abundant of the trace gases? A. nitrogen B. oxygen C. argon D. carbon dioxide

Describe the central dogma of molecular biology, briefly describe the processes of transcription and translation.

magine that the animal body produced sperm and eggs with mitosis instead of meiosis. What chromosome number would the autosomes of the third generation have if the first generation had four chromosomes

A well supported testable explanation of phenomena that have occurred in the natural world is called