the four earth spheres are atmosphere lithosphere hydrosphere and biosphere ...... therefore mesosphere is NOT part of it
The Hox genes control how body parts are shaped and arranged. Genes are sections of DNA that code for a particular protein; they give the organism its visible traits. Altering the nucleotide sequence in this section of DNA alters protein synthesis. This change causes a completely different body part to grow.
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.
Answer:
The answer is A. TRUE
Explanation:
Diapedesis can be described as the movement of the blood cells in the intact walls of the blood capillaries. Diapdesis refers to the event through which passage for the blood cells is created to move towards the tissues.
The mechanism of diapedesis occurs frequently and can be observed when leukocytes move towards the site of inflammation or any injury. Diapedesis also occurs when lymphocytes are recirculated from the blood to the lymphatic system.
Answer:
the main difference between the paasitic roots and mycorrhizae is that the parasitic roots are adventious roots of parasitic plants penetrating into the conducting tissue of the host plant whereas mycorrhizae r the association's between fungi and higher plants