It’s due to stem cells. The genes in dna turn on and off to give a cell a specific job, so stem cells can be “programmed” as any cell the body needs. (Muscle cell, skin cell, etc)
Answer:
Pteridophytes are vascular plants but they do not produce flowers and seeds which mean their source of reproduction is unknown or hidden.
On the contrary, Spermatophytes as the name indicates, are seed bearing plants. They produced seeds and flowers. Examples are flowering plants, cactus, leather flower, buttercup and may more.
Explanation:
Solution;
Unsaturated fats are typically liquid at room temperature. Unsaturated fats come primarily from plant foods, such as nuts and seeds, and. Examples include vegetable oils such as olive, peanut, safflower, sunflower, soybean and corn etc
While,
Saturated fats – which are found in butter, cheese, red meat and other animal-based foods. Decades of sound science has proven it can raise your “bad” cholesterol and put you at higher risk for heart disease.
Thus the saturated fats are differs from the unsaturated fats.
Answer:
I'm pretty sure the answer is B
None of the above, arteries pump blood away from heart.
