Answer:
Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help regulate how cells handle water and storage of other molecules.
The right answer is blastocyst.
The blastocystic Stage of embryo development is characterized by the formation in the center of the morula (embryonic cell group) of a cavity isolated from the external environment: the blastocoele.
In embryonic development, this step precedes gastrulation.
Blastocysts are indeed composed of a hundred cells; they have the shape of a hollow sphere at the bottom of which is the mound of the "embryonic bud" from which the embryonic stem cells are derived.
The given diagram is of the digestive system of the humans. The labels 'i', 'j', and 'k' represents the absorption of the products of the digestion from the small intestine and the large intestine.
'i' - This arrow represents the absorption of sugars and amino acids into the bloodstream via the villi present in the small intestine.
'j' - This arrow represents the absorption of the fatty acids into the lymphatic vessel through the lacteals present in the villi. These merge to form the lymphatic vessel.
'k' - This arrow represents the absorption of the ions and nutrients which are released by the bacteria present in the intestine.
The right option is; the amount of energy before a process occurs is equal to the energy after the process occur.
The law of conservation of energy states that energy can neither be created nor destroyed, but it can only be transferred or converted from one form of energy to another. The law explains that the total amount of energy of an isolated system remains the same, unless there is additional energy from the outside.
Answer:
he path taken by the nerve impulses in a reflex is called a reflex arc. Reflexes do not require involvement of the brain, although in some cases the brain can prevent reflex action.
Explanation:
