Brachiosaurus, a genus of large dinosaurs, did not have rings in the sense of tree rings or similar structures. However, if you are referring to the rings found in some plants, those are typically growth rings that indicate the age of a tree. Brachiosaurus lived during the Late Jurassic period and primarily fed on vegetation, but its anatomy does not feature any rings.
I'm assuming you mean the rings around the planetsinstead of the plants. They are made of dust, rock, and occasionally ice.
Yes they do
The rings are 50m long, made up of 20000 plants
The four inner [terrestrial] planets: Mercury, Venus, Earth and Mars.
Do your homework and you would know.
C4 plants have concentric rings of mesophyll cells around vascular bundle sheath in the leaves.
what causes tree rings to form each year
No, they don't.Vascular plants are those which have phloem and xylem structures within them to transport water and nutrients around the plant. Most of the plants you see around you are vascular. Think about grass or herbaceous plants - you won't find growth rings in those if you cut them through the middle, because they do not have cambium in their vascular bundles to initiate secondary growth. Most of the subtropical trees also do not develop annual growth rings although they have cambium because their apical growth never stops.Growth rings occur in plants having cambium and growing in a situation where there is disparity in the seasonal growth. During active growth period, as in spring season, more conduction of raw materials takes place hence the trachieds are broader and during autumn season when the plant prepares for winter, there is lesser conductivity through the xylem elements which makes their trachieds smaller. Thus the rings are caused by differential seasonal growth of xylem elements.----------------------------------In addition, since the tropical climates don't have the large changes in temperature and light hours that the temperate zones have, the vascular, woody plants don't have annual rings. They may form "growth" rings though. If they have a severe dry spell or severe hot or cool spell, or a grass fire, etc., then the tree may develop a pause in active growth and thereby form a "growth" ring. A tree in the tropics could form one growth ring in five years. Then again, it could form five growth rings in one year (that would be a rough year)The term growth ring is a better, more inclusive term than annual ring.Phloem
They are all gaseous planets with rings systems and many moons.
Trees show growth rings on the cross-section of their trunks.
No, trees are not the only organisms with growth rings. Some shrubs, palms, and certain types of woody plants also exhibit growth rings, which can indicate age and growth conditions. Additionally, some species of fish, corals, and mollusks can display growth rings in their skeletal structures. These growth rings provide valuable insights into the growth patterns and environmental conditions experienced by these organisms.
No, a paleobotanist primarily studies fossilized plants to understand ancient ecosystems and the evolution of plant life over geological time. The study of tree rings, known as dendrochronology, is typically conducted by dendrochronologists. While both fields involve plants, their focuses and methodologies differ significantly.