Excreting urea helps in maintaining internal homeostasis by retaining water.
The mammals like humans excrete urea, while reptiles and birds, and some terrestrial invertebrates generate uric acid as waste. Generating uric acid in place of urea is beneficial as it is less toxic and diminishes water loss and the subsequent requirement for water.
This retention of water helps birds and reptiles to sustain internal homeostasis mainly in hot weather.
The determination of the past arrangement of leaves from bare twig are
- Flower bud
- Lateral branching
- Lateral terminal bud
- Leaf scar
- Node
- Inter node
- Auxiliary buds
- Bud scale
- Terminal bud
<u>Explanation:</u>
Terminal bud: it is the large bud at the apex of the twig. Uses of the bud is to protect the dormant meristem.
Bud scale: a small modified leaf on outside of bud.
Auxiliary bud: It is found just above the each leaf scar. Not all twig will have a full complementary of auxiliary buds. They frequently gets damaged.
Lenticles: Opening in the bark that allows for gas exchange into and out of underlying living tissues.
Leaf scars: It is present at the stem for the triangular regions.
A Punnett Square is a chart in which you cross two parents' offspring to figure out what traits their offspring may have. It helps give an estimate of the probability of the child having different attributes, such as eye color or hair color through the use of dominant and recessive alleles.
Answer:
Sunlight shines only three months out of the year.
Explanation:
I think this is right
Because abundance means a large amount so there would be no competition there.
If organisms share a place to sleep then that means no competition
If a living thing is consuming berries on a tree then the living thing is just eating
But if the sunlight only shines three months out of the year then that can cause a shortage of food in the environment causing for the living creatures in the environment to compete for the food that is left since there won't be enough to supply for and abundance of living things.
