Challenges of moving from an aquatic to a terrestrial environment You have the pleasure of observing wood frog tadpoles in a pon
d on campus. You see them make the transition from gilled larvae into adults with lungs. In order to make this amazing transformation from an entirely aquatic life to one that includes time on land, your tadpoles will face a series of obstacles, not unlike those that the first vertebrate inhabitants of land faced. Complete the following sentences to correctly examine those changes. circulatory system Because of their large________ , ancestral amphibians likely faced challenges supporting themselves out of the aquatic environment.
cartilaginous bones feeding Although there was far_________ oxygen available to gills in air than in water, the delicate structure of gills couldn't be supported in the terrestrial environment.
excretory system The costs of locomotion on land and greater oxygen demand from enlarged muscles led to modifications of the heart and_________
body size
more These early amphibians could not venture too far away from water because______ was restricted to moist environments.
less
egg deposition
Because of their large <em>body size</em> , ancestral amphibians likely faced challenges supporting themselves out of the aquatic environment.
Although there was far <em>more</em> oxygen available to gills in air than in water, the delicate structure of gills couldn't be supported in the terrestrial environment.
The costs of locomotion on land and greater oxygen demand from enlarged muscles led to modifications of the heart and <em>circulatory system</em>
These early amphibians could not venture too far away from water because <em>egg deposition</em> was restricted to moist environments.
Transcription components are proteins that predicament to particular DNA arrangements with a specific end goal to control the declaration of a given quality. The energy of interpretation variables dwells in their capacity to actuate as well as quell wide collections of downstream target qualities.
It is possible to obseve that the fur color of the feline is connected with the male chromosome "X". The presence of Xb (recessive) and XB (dominant) results in the tortoise color.
The ausent tail T is carried in the autosomes with a dominacy over the presence of tail "t" and the presence of both dominances "TT" results in the death of the offspring.
