A leech is an example of a parasite
Answer:
C. <em>Clostridium</em> and <em>Bacillus</em>.
Explanation:
<em>Bacillus </em>and <em>Clostridium</em> are the gram-positive bacteria and form endospores. Endospores are the resistant dormant structures formed by some gram-positive bacteria.
These bacteria form the endospores within their vegetative cells. The endospores are highly resistant to environmental stress conditions and make these bacterial genera the dangerous pathogens.
Option is c....bcz dna contains the base thymine and rna contains uracil
Answer:
Charles Darwin
Explanation:
Evolution theory is a shortened form of the term "theory of evolution by natural selection," which was proposed in the 19th century by Charles Darwin and Alfred Russel Wallace.
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Answer:
Hematopoietic stem cells
Explanation:
These hematopoietic stem cells gives rise to the other blood cells in the bone marrow and the process is known as hematopoiesis. It occurs in the red bone marrow.
Bone marrow is the place where new blood cells are produced. It is the tissue comprising center of large bones and contains two types of stem cells: hematopoietic and stromal.
