Ozone cannot directly change the surface of the Earth. Processes in a through d can.
What theory best explains the wide variation in physical traits that you see among the thousands of people at a crowded festival or sporting event?
Which pictured animal is a cnidarian?
A woman is most likely to get pregnant if she has unprotected sex a few days before and on the day of ovulation, when the egg is released from the ovaries. The release of the egg is hormonally stimulated,meaning that a hormone in the woman’s body triggers ovulation. On average, women ovulate around the 14th day of their menstrual cycle. The following is a graph show- ing the levels of three hormones throughout the menstrual cycle of an average woman.
Based on the graph, which hormone is most directly responsible for triggering ovulation?
Monera (bacteria): Single-celled prokaryotic organisms; reproduce by binary fission (simple cell division); found in every habitat
Protista (protists): Single-celled eukaryotic organism; include plantlike, animal-like, and fungi-like organisms; reproduce by binary fission
Fungi: Single-celled and multicellular eukaryotic organisms; cells reproduce by either budding (forming a string of cells) or binary fission
Plantae (plants): Multicellular eukaryotic organisms with cell walls; make their own food from the Sun’s energy
Animalia (animals): Multicellular eukaryotic organisms without cell walls; ingest food and process it internally
The cells of eukaryotic organisms contain a distinct nucleus, and their DNA is organized into chromosomes. The cells of prokaryotic organisms lack these features.
In reproduction of yeast, a cell forms a “daughter” cell, and then the nucleus of the parent cell splits into a daughter nucleus, which migrates into the daughter cell. To which kingdom does yeast belong?