Answer:
TRUE
Explanation:
The Sauropods were the enormous herbivore dinosaurs that had a long neck and a tail, but the size of their head was relatively small. The fossil remnants of a previously existed unknown sauropod dinosaur species named 'Tataouinea hannibalis' were obtained from the rocks of the southern side of Tunisia.
From the fossil evidence, it was observed that a sizable opening was present in the ischium, which actually opens into a large air chamber. This observation supported the theory that considers the presence of abdominal air sacs in this type pf dinosaur species that are similar to the respiratory system of Aves (birds).
Thus, the Sauropods and Aves are closely related to one another.
Hence, the above statement is TRUE.
Answer:
The phylum Hemichordata is the one that could form an evolutionary connection between the chordates and non-chordates.
Explanation:
To the phylum Hemichordata belongs a genus that scientists believe could explain how the chordates could evolve from the non-chordates. This genus is Balanoglossus, of the class Enteropneusta.
Balanoglossus is similar to a worm, whose habitat is the seabed, and like other hemicordates it has a stomach, a structure that forms part of its digestive system and fulfills the functions of a spine.
Learn more:
Chordates and non-chordates brainly.com/question/1387264
Answer:
A. Cortisol passes through the plasma membrane into the cytoplasm.
B. Cortisol- receptor complex forms in the cytoplasm.
C. Cortisol- receptor complex enters the nucleus where it binds to genes.
D. Cortisol- receptor complex acts as a transcription factor.
E. The transcripted mRNA is translated into a specific protein.
Explanation:
Cortisol
Cortisol can go through the plasma membrane due to its hydrophobic nature.
It forms a hormone- receptor complex by adhering to the intracelullar receptor protein in the target cells. This complex formed works as a transcription factor in the nucleus, as it binds and activates the transcription of specific genes into mRNA. This mRNA is then translated into specific proteins.
Note:
Cortisol signal works in the stress response to promote the production of these specific proteins which can help an animal in boosting blood glucose level or serve as source of glucose during starvation or strenuous physical activity.