Answer:
fibrous connective tissue
Explanation:
Ligaments and tendons are both made up of fibrous connective tissue, but that’s about where the similarity ends. Ligaments appear as crisscross bands that attach bone to bone and help stabilize joints. For example, the anterior cruciate ligament (ACL) attaches the thighbone to the shinbone, stabilizing the knee joint.
Mitosis and Specialization
Mitosis is a process that occurs during cell cycle which involves the division of a cell to produce two new cells that are identical to itself. Also, it is the splitting of DNA in the cell’s nucleus into two equal sets of chromosomes. Furthermore, mitosis consists of four basic phases which were prophase, metaphase, anaphase and telophase.
Cell Specialization is a process where generic cell changes into specific cells for the purpose of specific task within the body. Furthermore, they are very important in the development of embryos.
Cytarabine<span> was patented in 1960 and approved for medical use in 1969. It </span>is<span> on </span>the<span> World Health Organization's List </span>of<span> Essential Medicines, </span>the most<span> effective</span>
Answer:
c. endosymbiosis requires high oxygen concentrations for evolution to proceed
Explanation:
Endosymbiosis is an hypothesis which stipulates that complex organelles like mitochondrion and chloroplast evolved as a result of symbiotic relationship between aerobic, single cell prokaryotes in which an aerobic organism ingest an anaerobic organism in an atmosphere containing oxygen.
The oxygen in the atmosphere is like a poison to the anaerobic prokaryote and the ingestion by aerobic prokaryote protects it from the toxic effects of oxygen and in return, the ingested organism offers some benefit to its host resulting in a beneficial relationship.
Hence, the presence of oxygen is important for endosymbiosis and eventual evolution of complex organelles in multicellular organisms.
The correct option is c.
