What is class and what is your book name
Answer:
Plants are a source of food, fuel and medicine.
Explanation:
In biology, plants are photosynthetic living beings without locomotive capacity whose cell walls are mainly composed of cellulose.
The importance of plants for humans is indisputable. Without them we could not live, since the plants participated in the composition of the gases present in the Earth's atmosphere and in the ecosystems, and are the primary source of food for heterotrophic organisms. In addition, plants have direct importance to man: as a source of food; as building materials, firewood, fuel and paper; as ornamental; as substances that worsen or improve health and therefore have medical importance; and as a consequence of the latter, as the raw material of the pharmaceutical industry.
Answer:
False.
Explanation:
The plants growth, maintenance and metabolism are controlled by the plant hormones and plant secondary metabolites. Five important plant hormones are auxin, gibberelin, cytokinin, ethylene and abscisic acid.
The plant hormones regulates the developmental process like root-shoot initiation, germination, flowering and fruits development. Auxins regulates the root development, gibberellins helps in seed dormancy, ethylene helps in ripening of fruits, cytokinin helps in shoot formation and abscisic acid causes leaf senescence and ageing.
Thus, the given statement is false.
Answer:
Darwin’s findings based:
a. Organisms descended from a common ancestor
Explanation:
Darwin thought of evolution as "descent with modification," a process in which species change and give rise to new species over many generations. He proposed that the evolutionary history of life forms a branching tree with many levels, in which all species can be traced back to an ancient common ancestor.
Mammals do; I'm in my science class
