Animals are not able to convert fatty acids into carbohydrates. The net synthesis of one mole of oxaloacetate from two moles of acetyl‑CoA by the citric acid cycle does not occur because one mole of oxaloacetate is used in the cycle for each one generated. Plants are able to convert two moles of acetyl‑CoA into one mole of oxaloacetate with only two additional enzymes not found in animals. This process is called the glyoxylate cycle, and it occurs in organelles called glyoxysomes. Classify the enzymes based on whether they are found only in plants or are found in both plants and animals.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

(nitrogen fixation) will be your answer sorry if im wrong

oxygen is the first element in group 16 (via) of the periodic table. the periodic table is a chart that shows how chemical elements are related to each other. the elements in group 16 are said to belong to the chalcogen family. other elements in this group include  sulfur, selenium, tellurium,  and  polonium.  the name chalcogen comes from the greek word  chalkos,  meaning "ore." the first two members of the family, oxygen and sulfur, are found in most ores.

oxygen is by far the most abundant element in the earth's crust. nearly half of all the atoms in the earth are oxygen atoms. oxygen also makes up about one-fifth of the earth's atmosphere. nearly 90 percent of the weight of the oceans is due to oxygen. in addition, oxygen is thought to be the third most abundant element in the universe and in the solar system.