The calcium that triggers muscle contraction is stored in synaptic vesicles called endoplastic reticulum. that is not the only function of the endoplastic reticulum it is also a network of a membranous tubules within the cytoplasm of a eucryotic cell continuous with the nuclear membrane.
<h2>C) is the correct option </h2>
Explanation:
To best convey the exact name of an organism to others in same field one should as a group, decide on an alternative that everyone understands
Names are important because they allow people throughout the world to communicate unambiguously about animal species because there are sets of international rules about how to name animals and zoologists try to avoid naming the same thing more than once, though this does sometimes happen
These naming rules mean that every scientific name is unique
The genus is the first level of taxonomic organization, in a way, because all species that are thought to be most closely related, are placed together in a genus
Scientific names are often descriptive also, suggesting something about the animal
Common names are not unique because of which it can lead to confusion about what animal is being referred to and what their relationships are to other animals
Humans are diploid organisms that have 23
pairs of chromosomes (or 46 chromosomes) in
all somatic or body cells. These cells divide by
mitosis that forms daughter cells with same
number of chromosome pairs as present in
parent cell.
In humans, gametes (eggs and sperms) are
formed from the germ cells by the process of
meiosis that leads to reduction of chromosomes
in daughter cells (with half the number of
chromosomes as present in parent cell).
Thus, the correct options are:
-bone cell has 46 chromosomes, as bone is a
somatic cell.
-Skin cell has 23 chromosome pairs (46
chromosomes), as skin cell is somatic cell.
-gamete has half the chromosomes (23
chromosomes) of a red blood cell (46
chromosomes) as red blood cell is somatic cell.
Answer:
mRNA is “messenger” RNA. mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II. The process of making mRNA from DNA is called transcription, and it occurs in the nucleus.
A mountains it’s part of biosphere;lithosphere