Answer:
a. halophilic
Explanation:
Halophilic microorganisms have an absolute requirement for high salt concentration (NaCl concentration). These microbes grow well under the conditions of higher salt concentration but do not survive the lower salt concentrations. For example, the halobacteria are the archaeans that depend on high NaCl concentrations for growth and do not survive at a concentration below about 1.5 M NaCl.
According to the observations, the bacterium could not grow in the tube having a NaCl concentration of 0.5% but exhibits maximum growth under higher NaCl concentrations (15%). This means that the observed bacterium is a halophile or halophilic microbe.
A water molecule connects together when they meet just how a magnet sticks to another magnet
The right answer is The cells are damaged.
Take the example of skin cells.
The skin consists of two tissues:
* the outermost, the epidermis, resting on a vascularized connective tissue,
* the dermis.
In the epidermis, which includes several layers of cells, the outer layer is formed of dead cells that are desquamating and are constantly being replaced from proliferating basal cell cells. So, in normal conditions, the epidermis is in constant renewal.
On the other hand, when accidentally, the upper parts of the epidermis are damaged, for example, a slight abrasion or of a burn, the destroyed portion is regenerated (replaced) thanks to an accelerated proliferation of basal epidermal cells .
Tolerance range refers to the range of conditions of the external environment an organism is able to withstand. The population size of a certain species can be lowered if conditions are outside optimum range. The population is lowered because the organisms cannot survive if there is too much or too little of a factor.
Explanation:
producers? O A. Producers and primary consumers compete with each other for food sources. B. Primary consumers eat secondary consumers, which rely on producers for food. C. Producers provide primary consumers with the chemical energy they need. D. Primary consumers provide producers with the chemical energy