You would use the digestive system (which includes your mouth and teeth) to chew, swallow, and begin digesting the carrot. You would use the nervous system to taste and smell the carrot. You would use the muscular system to close and open your jaw to chew the carrot and also to raise the carrot to your mouth and to maintain posture. You would also use the muscular system to swallow and digest the food using peristalsis (which is the back and forth motion by smooth muscle to churn the carrot). You would use the skeletal system (specifically the maxillae (upper jaw and hard palate) and the mandible (lower jaw)) as support for your muscles to chew the carrot and the skeletal system to maintain posture while sitting at the table. These are the systems directly involved with ingesting a carrot.
Answer:
Sudden drops in temperature can make people sick , and weaken your immune system .Also it even causes eye, respiratory infections and muscle spasm. Other problems that can occur owing to sudden dip or rise in temperature are runny nose, asthma attacks, muscular pains, sinusitis, flu, cold, sore throat, severe pains and muscular aches.
Explanation:
Gene expression begins with transcription and occurs in the <u>nucleus.</u> To create an <u>RNA molecule,</u> the DNA sequence of a gene must be copied. <u>RNA polymerases, </u>which join nucleotides to create an RNA strand, carry out transcription (using a DNA strand as a template).<u> Initiation, elongation, and termination</u> are the three phases of transcription.
- RNA polymerase is the enzyme responsible for constructing the messenger RNA transcript from the template DNA.
- The synthesis of mRNA always proceeds in a 5’ to 3’ direction. In eukaryotes, the nucleus is the site of mRNA synthesis, whereas, in prokaryotes, mRNA is formed in the cytoplasm. The process of transcription has three stages:
Initiation stage – RNA polymerase begins the synthesis by recognizing the gene present at the beginning of the template strand.
The polymerase binds to the specific sequence, which at present at the initial end of the template. These are called consensus sequences. Specific transcription factors facilitate the recognition and binding of the consensus sequence with RNA polymerase.
Elongation stage – the RNA polymerase copies the mRNA complementary to the coding strand. The process of elongation continues till the RNA polymerase reaches the terminal sequence. Certain factors facilitate the elongation process called extension factors.
Termination stage – RNA polymerase, upon reaching the termination sequence, stops the transcription. At this point, no more elongation is carried out. The nascent mRNA is released from the transcription bubble by either of the two processes:
- By formation of a hair loop structure that pulls the mRNA from the transcription complex or,
- A protein called Rho utilizes ATP to break the bonds and release the nascent mRNA.
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Ladybugs are among the 450,000 species of beetles. They vary with size, color, number of spots, and color of the spots. Asian beetles, which are the ladybugs with no spots, are what you are probably seeing.
The spots and the color are used as a warning for predators, such as many poisonous frogs.
Answer:
The region where the embryoblast contacts the trophoblast is called the embryonic pole. ... Just before implantation, the cells in the embryoblast start to differentiate into two layers - the epiblast (primary ectoderm), and an internal layer of cuboidal cells called the hypoblast (or primary endoderm).