Biologists recognize five levels of cell organization. The lowest and simplest is the cellular level. Organisms here are either unicellular organisms, like protozoa, or colonial organisms. Colonial organisms are composed of single-celled individuals that stay together to sustain the life of the whole colony. Next on the scale of complexity is the level occupied by tissue. A tissue is a group of similar cells that perform a similar activity. Tissues that are organized around a common function together make up an organ, the third level of complexity. The fourth level of organization is the system, formed by a group of organs that together perform a specific bodily process. The fifth and highest level is the organism level, in which body systems work together in a structure capable of independent life.
<span>it has a specific activation site for enzyme attachment</span>
Answer:
1) By 11:30pm
2) Shortly before midnight (few minutes to 12:00am)
Explanation:
Since the strain of bacteria takes 1 minute to divide (double its population), and by midnight (12:00am) the entire bottle becomes full, then:
I) Subtract Initial division time from Final division time i.e 12:00 - 11:00 = 1 hour
II) Split 1 hour into two (60minutes makes 1 hour)
I hour/2 = 30 minutes
Definitely, the bottle will be half filled by 11:30pm
2) Once half filled, the rapidly dividing cells reach for the top of the bottle as midnight approaches. By 11:50pm upwards, bottle space must have been running out
Answer:
asexual reproduction
Explanation:
it starts off with a single nucleus and ends up with 2, there is no obvious chromosomes or spindle fibres to suggest meiosis or mitosis
Answer:
In ionic bonds, there is a transfer of electrons from one atom to another. Because of the transfer of electrons, the atoms that gain electrons become negatively charged, while the atoms that lose electrons will be positively charged. [1] If the atom has an additional electron, then the atom becomes a negative ion, known as anion. Meanwhile, if the atom loses electrons, then the atom becomes a positive ion or cation. [2] Because of the difference in charge between ions (positive ions and negative ions), the positive and negative ions will attract each other by electrostatic forces. This event is the basis of ionic bonding.
#sorry if wrong
