Answer:
1
Explanation:
An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body.
Answer:
Nitrogen fixation
Explanation:
Biological nitrogen fixation is carried out by two types of microorganisms namely, symbiotic and free living microorganisms. Symbiotic microorganisms are bacteria f the genus <em>Rhizobium</em>. These are found in root nodules of leguminous plants. They convert atmospheric nitrogen into ammonia which is used directly by leguminous plants to form nitrogen containing organic compounds.
Therapeutic cloning<span> uses the replication of human embryos to harvest </span>stem cells<span> for medical uses. Majority of the clones are made through a process called "somatic </span>cell<span> nuclear transfer." Basically, a scientist uses a tiny needle to pull DNA material from the nucleus of a donor </span>cell<span> and transfer it into a hollow egg</span>
Answer:
Wegener
Explanation:
Wegener, who was born on November 1, 1880, became well-known around the world owing to his theory that the continents and oceans developed due to continental drift. While his theory is fundamental to today's understanding of plate tectonics it was largely rejected by other scientists during his lifetime.
<span>a galvanic cell,or voltaic cell,named after Luigi Galvani, or Alessandro Vlota respectively, is an electrochemecal cell that derives electrical energy from spontaneous redox reactions taking place within a cell. </span>
