Answer:
While plant cells have chloroplasts to photosynthesize, they also require ATP for cellular functions, and do use oxygen to break down some of the sugar they produce in order to generate that ATP. They need mitochondria for this.
In particular, at night when there is no light, plants undergo cellular respiration since there is no sunlight to photosynthesize.
They do, however, produce far more sugar and oxygen through photosynthesis than they use up in respiration.
Bacteria have different phage resistance mechanisms, such as spontaneous mutations, the CRISPR-Cas system.
Spontaneous mutations are the main mechanisms leading to phage resistance by altering the structure of bacterial wall components that act as phage receptors. These include lipopolysaccharides (LPS), outer membrane proteins, cell wall teichoic acids, capsules, and other bacterial components.
Answer:D) Samples A & C indicate cancer due to the large proportion of cells in some stage of mitosis compared to the cells in interphase.
Sample: Number of Cells in Interphase Number of Cells in Prophase Number of Cells in Metaphase Number of Cells in Anaphase Number of Cells in Telophase
Sample A 6 15 4 7 8
Sample B 25 4 2 3 1
Sample C 4 9 5 3 6
D. Proteins help control substances by making trans-membrane channels.
One way is that Igneous rock could erode and become sediment and deposited and slowly change into sedimentary rock, then get pushed down deep into the crust and changed by heat and pressure into metamorphic rock.
