An animal that relies on a digestive tract for digestion breaks down food by "b) extracellular digestion <span>only" since digestion happens at all levels of the organism. </span>
Answer:
Roots transporting water
Explanation:
Xylem are a special kind of tissue in plants. They help transport water and nutrients/minerals from the roots of the plant to the stem and the leaves. Also, the xylem help form the stem and give support to the plant.
Therefore, if the xylem is damaged, the process that is first affected is the roots transporting water.
The answer is D because it provided atp to transform to energy
C. Macrophages
When Macrophages approach a foreign pathogen they ingest the pathogens through phagocytosis, the Macrophages show the foreign antigen proteins on their cell surfaces.
The Helper T Cell recognizes the antigen on the surface of the macrophage and starts an immune response to the invading pathogen by sending out a chemical message
After that the B-cells produce antibodies that are specific to the antigens of the pathogens that slow them down so the macrophages can engulf them.
This statement is true. To be more specific, the calcium ions bind to the troponin, which are attached to the protein tropomyosin. The tropomyosin then to shifts to expose the actin filaments to which myosin heads need to bind to produce contraction.
