- <em>Monera (/məˈnɪərə/) (Greek - μονήρης (monḗrēs), "single", "solitary") <u>is a biological kingdom that is made up of prokaryotes (particularly bacteria).</u> As such, it is composed of single-celled organisms that lack a true nucleus. The taxon Monera was first proposed as a phylum by Ernst Haeckel in 1866.</em>
<h2><em>hope </em><em>it</em><em> helps</em></h2>
Answer:B.The signal is either similar in structure to a ligand used by eukaryotes, or this signaling pathway is utilized by both prokaryotes and eukaryotes.
Explanation: Eucaryotic cell is a cell whose Nucleus is clearly defined and confined within a membrane.
Procaryotic cell is a cell which does not have a clearly defined Nucleus.
Signals are stimuli which can be felt by an organism, specific organismal have its own kinds of signals which it can respond to,but some times signals with specific features can create response in two or more type or species of organisms. What happened in the lab is a case where a partial signal can be sensed by both procaryotes and eucaryotes because it has either a similar structure or its pathway can be used by either Eucaryotic cells and procaryotic cells.
<span>What is the difference between fragmentation and regeneration ?
</span><span>-Fragmentation</span> is when an organism is split into fragments, and each fragment grows into complete, individual organisms that are clones of the original organism.
-Regeneration is the process of regrowth that organisms that allows for partial or complete regrowth of tissue after a damaging event.
The difference is that fragmentation specifies two parts each growing into complete organisms, but regeneration is simply a general process of regrowth. Few species are capable of fragmentation, but ALL species undergo regeneration, to varying degrees
<span>The correct answer is B: many eggs may have been released multiple menopause. That is because you can't enter labor or even become pregnant if you're in menopause. This couldn't have happened because menopause is the end of menstruation and the end of female fertiliy. When it begins, the female can't have kids anymore.</span>
Answer: The true statement is: Autocrine signals are produced by and act upon the same cell
Explanation:
Autocrine signals are made by cells producing hormones or molecules that acts on the same cell that produces it.
Usually, these autocrine hormones bind to receptors positioned in the cells producing them and thereby signal/exert changes in the cell.
Other options contains false statements
- Steroid hormones are produced ONLY when needed, not produced in advance and then stored
- Neurohormones do not help in the transmission of nerve impulses; So, they ARE NOT neurotransmitters
- Paracrine signals exert their effects on nearby cells; thus, they are not for long distance communication.
The ONLY true statement is that 'Autocrine signals are produced by and act upon the same cell.'
