Organisms that digest molecules in organic material and convert them into inorganic forms are called decomposers. They are classified as heterotrophic since they use organic substances in obtaining the energy and nutrients they need to survive. They are organisms that are responsible for breaking down decaying organisms into simple molecules in order to bring these back to the biogeochemical cycles into the ecosystem. In the food chain, they are the last step. Examples of these decomposers are fungi, snails and some insects. These organisms do not have an internal digestive organs since the the organic substrates undergo biochemical reactions only.
contour farming:
Contour farming has been practiced for centuries in parts of the world where irrigation farming is important. Although in the United States the technique was first practiced at the turn of the 19th century, straight-line planting in rows parallel to field boundaries and regardless of slopes long remained the prevalent method. Efforts by the U.S. Soil Conservation Service to promote contouring in the 1930s as an essential part of erosion control eventually led to its widespread adoption.
<h2>Let us match them </h2>
Explanation:
Match each description with correct process.
A) occurs only in cells containg chlorophyll : photosynthesis
B)Carried ob by cells : all metaboilc reactions
C) Produces energy : mitochondria
D)Produces carbhydrates (sugars): Dark reaction
E) CO2,H2O, and ATP are products : Respiration
F) Co2 and H2O are reactants
: photosynthesis
G) Does not need light
: respiration
H) Occurs in Mitochondria
: chemical reactions that produces energy
) I) Occurs in heterotrophs
: Parasitism
J) Breaks bonds between phosphate: an enzyme
Differing orientations of chromosomes along the cell equator during metaphase I in meiosis, resulting in gametes with different combinations of parental chromosomes is known as independent assortment.
The law of independent assortment states that "different genes and alleles are inherited independently within the gonads". This shows that during metaphase I in meiosis, each homologous pair of chromosomes orient themselves independently, such that after the chromosomes separate into gametes, each gamete receives only one allele per genotype, producing haploid gametes.
Independent assortment produces new combination of alleles and enables genetic variation after fertilization.
To learn more about meiosis, check out:
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