The iron-rich minerals present in the magma align themselves with the already existing magnetic field of the Earth. When the magma starts to cool down, the iron rich minerals are the first to solidify first. The magnetic field of the Earth align these minerals as the needle of the compass. The alignment of these iron-minerals is fixed once the magma is solidified completely.
Hence, the given blanks can be filled with 'iron and solidify'. respectively.
Answer:
The correct answer will be option A.
Explanation:
The bacteria organize its genetic material in the single circular chromosome suspended in the cytosol along with additional circular double-stranded DNA molecule called plasmid.
The plasmid is present as a separate structure in the cytoplasm which performs important functions during stressful conditions in the bacteria like providing antibiotic resistance to the bacteria, formation of filial factors during conjugation and many others.
The plasmid which confers resistant to the bacteria is known as the R-plasmid. The R-plasmid consists of r-determinants which confers antibiotic resistance to the bacteria and resistance transfer factor (RTF) which helps in plasmid transfer.
Thus, option A is the correct answer.
Ameoba has the similar mode of nutrition.
Phygocytosis can be
defined as the process where phagocytes or living cells engulf or ingest other
cells or particles. Thus, phagocytes can be of the body cells such as white blood
cell or free living sinlge cell organism such as ameoba. Ameoba uses the process
of phagocytosis to eat and acquire nutrients with the use of pseudopods to
engulf the particles.
Answer:Muscles relax and contract when one muscle pulls and moves your body part and if you want to do the opposite movement the opposite muscle contracts, allowing the first muscle to relax.
Explanation:
