Phloem and Xylem are tissues is some plants this is also veins for us. (Part of the Circulatory system). Hope this helps :)
Speciation can be difficult to observe in nature, but the it is hypothesized that the following occurs in a allopatric speciation's intermediate stage:
(1) closely related species are differentiated through geographic variation (2) then there's reduced fertility in one a geographic race of the species (3) and in the geographic race of subspecies that are to become species.
Answer:
Grass consumes the sunlight and water, a gazelle may eat that grass, a heyena may eat that gazelle, and a lion may eat that heyena.
Explanation:
To lower activation energy and to increase the rate of a chemical reaction.
An whole individual living entity is known as the organism. An organism can be defined as the individual who is capable of reacting to the stimuli, growing, reproducing and maintaining homeostasis. Multiple categories of these organisms are present on the Earth, which are classified taxonomically. The three main domains of the organisms are the archaebacteria, eubacteria, and the eukaryotes.
Hence, the answer is 'organism'.
