Answer:
After being hunted almost to extinction, the humpback whale population has rebounded dramatically. Rapidly melting Antarctica ice poses a threat to coastal cities, but there is at least one species that is benefiting: Humpback whales are flourishing these days, due to an abundance of krill.
Pre-hunting population size may have been as many as 200,000-300,000 whales. They were estimated to number around 2,300 in 1998 and to be increasing between 2.4-8.4% per year. The IWC is undertaking an assessment of Antarctic blue whales at present.
In general B vitamins function in your body as? *Co-enzymes
B) they stay the same for many generations
Diffusion through a permeable membrane moves a substance from an area of high concentration (extracellular fluid, in this case) down its concentration gradient (into the cytoplasm). The passive forms of transport, diffusion and osmosis, move materials of small molecular weight across membranes.
Answer: The first and the fourth figure is showing the two stages of metamorphosis in beetle. The first figure represents the adult stage of beetle and the last figure represents the larvae stage of beetle. Metamorphosis is the biological process by which an organism goes through differentiation of cells. As a result of this differentiation the structure of the organism changes from one to another. There are four stages egg, larvae, pupa, adult.
The second figure shows regeneration in cnidaria. They repair their body and reproduce asexually by this process. They show two stages polyp and medusae. Medusae have less ability to regenerate but poly stage can regenerate from small parts. This ability helps corals to heal back after being destroyed by predators.
The third figure represents cow and this is an unique feature of mammals to produce milk by their mammary gland. During the lactation period the cow produces milk that is used by cattle and human beings.
