Biology, 12.04.2020 17:06, CaraRose1887
According to biogenesis, the fir tree began life when fertilization occurred to produce a single cell
A) and grew to its mature form as a result of meiosis.
B) and grew into its mature form as a result germination.
C) and grew to its mature form as a result of cell division.
Eliminate
D) and grew to its mature form as a result of fragmentation.
Answers: 3
Biology, 21.06.2019 17:10, alejandra1201
Salmonella typhimurium is a food-borne bacterial pathogen that can cause severe gastrointestinal disease. salmonella is often phagocytosed by macrophages that normally destroy bacterial pathogens, but this bacterium is somehow able to prevent the complete maturation of phagolysosomes. salmonella is able to tolerate the low ph of phagolysosomes, and in fact responds to the drop in ph by secreting toxins that interfere with other cellular responses. which of the following differences would you expect to contribute to the survival of a bacterium within an salmonella-containing phagosome, compared to a healthy phagolysosome? decreased activity of acid hydrolases increased activity of acid hydrolases decreased import of h+ ions increased import of h+ ions my guess is decreased activity of acid hydrolases but i'm not sure.
Answers: 1
Biology, 22.06.2019 06:00, theresamarieuehling2
Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this
Answers: 3
According to biogenesis, the fir tree began life when fertilization occurred to produce a single cel...
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