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Dominant organisms in tertiary time period?
During the Tertiary period, dominant organisms included early mammals, large birds, marine mammals like whales and dolphins, and diverse plant species. This period saw the rise of modern mammals, along with the evolution of grasslands, forests, and flowering plants. The Tertiary period also saw the decline of dinosaurs and the rise of more familiar animal groups.
At what stage does corn enter the flowering stage of its growth cycle?
Corn enters the flowering stage of its growth cycle during the reproductive stage, which typically occurs around 60 to 70 days after planting.
Which forearm bone takes on majority of the pressure with weight bearing?
The radius is the forearm bone that takes on the majority of the pressure when weight bearing. It is larger and more robust compared to the ulna, which means it is designed to withstand the forces exerted during activities like weight bearing or carrying heavy objects.
What is the factors that initiates flowering in a long day plants?
In long day plants, flowering is initiated by exposure to a certain amount of light during a 24-hour period. When the length of daylight exceeds a critical threshold, it triggers the production of flowering hormones that stimulate the plant to transition from vegetative growth to the reproductive phase.
Is the femur weight bearing?
The fibula does not bear weight, but several muscles originate from it. The fibula, is the thinner bone in the lower leg, not made for weight bearing, however the tibia is made for weight bearing, which is the larger bone in the lower leg.
When did flowering plants first appear?
Flowering plants first appeared around 140 million years ago during the Cretaceous period. They rapidly diversified and became the dominant group of plants, replacing many of the existing groups at the time.
When did flowering plants evolve?
In the Mesozoic Era, during the cretaceous period
What flowering plant evolved during the Cretaceous period?
angiosperms
What appeared near the beginning of the Cretaceous period?
The most notable group of organisms that evolved at the beginning of the Cretaceous are the flowering plants, or angiosperms. Today, these are the majority of plants on Earth. All fruit bearing plants and grasses are angiosperms. At the same time as these evolved, new insects evolved that pollinated the flowers. Additionally, birds evolved either during the late Jurassic or the early Cretaceous.
What plant was there when there were dinosaurs?
Ginko trees, ferns, cycads, conifers, and during the Cretaceous, flowering plants.
What was the the environment like during the cretaceous period?
It was a warm tropical place in which many angiosperms (flowering plants) developed and became dominant. Because of this, many new herbivores appeared and others went extinct.The Cretaceous Period was hot and dry.
Did T-rex appeared during the early Cretaceous?
Yes, T-Rex appeared during the beginning of Cretaceous about 137 million years ago.
What did earth's surface look like during cretaceous period?
During that time there was widespread volcanic activinty and trees and flowering plants started appearing
What was the first flowering plant?
The first flowering plant, also known as angiosperm, appeared during the early Cretaceous period, around 130 million years ago. This plant evolved from gymnosperms and quickly diversified to become the dominant form of plant life on Earth.
What is the oldest known plant form of life?
The oldest known flowering plant is the Amborella. It first appeared on the Earth around 140 million years ago during the Mesozoic Era, the Cretaceous Period and the Upper Epoch.
When did small furry animals appear?
The first mammals appeared during the Cretaceous Period.
What Era did dinosaurs live in?
The dinosaurs lived in the Mesozoic Era, which includes the Triassic, Jurassic, and Cretaceous periods. The first dinosaurs appeared in the late Triassic and went extinct at the end of the Cretaceous.
