The correct answer is: a. the agar and air in the petri dish are providing all of the resources needed by the bacteria.
There are four phases of bacterial growth:
1. Lag phase-bacteria prepare for reproduction
2. Log phase- cell doubling
3. Stationary phase- due to a growth-limiting factor
4. Death phase.
Answer:
choanoflagellates and sponges are sister groups
Explanation:
The choanoflagellates are small unicellular organisms belonging to the Protista kingdom. These microorganisms are collared flagellates morphologically similar to the choanocyte cells of animal sponges, which have a central flagellum surrounded by a collar of microvilli. In consequence, it has been suggested that choanoflagellates may represent the closest living relatives of primitive metazoans (i.e., they are sister groups to sponges). This hypothesis has recently been supported by both molecular phylogenetic and comparative genomic analyses.
Answer:
Explanation:
Hernias are cuts in the muscles that makes the body bulge out. It can occur in the stomach region where intestine lies leading to its bulging out. Hernias has been traced back to early years and until recent it still exist.
Hernia are mostly common in man with little traces in woman. Some hernia are due to some congenital defect and could be found in new born. It is characterized by heart burn,cough, pressure on the affected part.
Hernia are said to be genetic, and this has lead to the continuity in human nature and not its reduction. Hernia have claim some life's especially the severe ones if not properly treated, some people have died in the theater room while be operate upon while some people are in sever pain of the disease. Hernia as at 2015 is present in 18.5million people and has caused death of about 59,800.
The correct answer is: D. The red blood cells were placed in a hypotonic solution. Water moved from the outside of the cells to the inside of the cells until the cells burst.
Hypotonic solution can be described as solution that has less solute and more water (H2O) than another solution. In order to maintain homeostasis, the water will move (via osmosis) into the cell, through the semipermeable membrane of the red blood cell.
If you're exposed to significant radiation, your thyroid will absorb radioactive iodine (radioiodine) just as it would other forms of iodine. The radioiodine is eventually cleared from the body in urine. If you take potassium iodide, it may fill "vacancies" in the thyroid and prevent the absorption of radioiodine.
Source: Mayo Clinic
