<span>A method of deducing the correct species
assignment of a living thing is known as dichotomous key, which is also called
identification key. It works by requiring a user to choose two alternatives at
each step and the choice of one alternatives give the name of the organism or
direct further down in the key. However, a common error in using dichotomous
key is the assumption that the correct name or identification of the organism
is even included in the set of key. Therefore, this method alone is not reliable
to identify specific species.</span>
Parallel circuits are circuits when placed in a parallel
position. Meaning that for each device, they have their own branch. The voltage
that is received in the circuit is equal to the individual devices. The total
current is equal to the current of each device. The resistance is the reciprocal
of the resistances of each device combined.
Given:
Device 1 = 12 ohms
Device 2 = 4 ohms
Voltage total = 40V
Required:
Current at 12 ohms
Solution:
40V = V1 =V2
Since V =IR
I1 = V1/R1
I1 = (40V)/(12 ohms)
<span><u>I1 = 3.334 A(Amperes)</u></span>
Answer:
Rise of population and over-consumption resources are key factors of climate change.
Explanation:
- The fact that climate change is real and is happening at a very fast rate. The impacts of which can be seen in terms of the increase in sea levels.
- The rise in global average mean temperatures, an increase in the melting of Greenland and Antarctic glaciers. The exposure of barren land beneath the antarctic continent.
- Therefore the scientific community s very concerned about the massive depletion of resources and the exposure of the earth's surface to solar radiation.
The question is incomplete as it does not have the options which are:
(a)DNA (b)tRNA (c)rRNA (d)mRNA
Answer:
Option-mRNA
Explanation:
The mRNA is synthesized from the DNA and which is also a type of nucleic acid. When the nucleic acid is extracted from the yeasts and then mixed with the resin beads to which the polynucleotide with thymine base oar is attached.
The mRNA will bind to the resin bead as the mRNA after synthesis undergoes modification and attaches poly A tail to the end of the mRNA at 3' end.
This poly-A tail has adenine which easily binds to the thymine and thus mRNA easily attaches to the resin bead.
Thus, mRNA is correct.
