Answer:
At the base of Actinopterygii
*This is a unique characteristic of this group.
Explanation:
A peculiar characteristic organ observed in ray-finned fish (as well as in Sarcopterygii, or lobe-finned fish) but not in cartilaginous fish like shark is the swim bladder.
This organ is often described to be a sac containing gas. It helps these set of fish adjust its buoyancy and its position in the water by regulating the concentration of gas present in it.
The swim bladder is formed as a pouch coming off the embryonic digestive tract, and in chondrosteans and holosteans, with a set of teleosts e.g. the eels, it maintains an open pathway to the esophagus. In majority of the bony fish, the swim bladder is totally sealed off, as gas levels in their swim bladder are regulated by producing gas into the bladder via a network of capillaries, the rete mirabile (Latin word for "marvelous net").
The swim bladder is homologous to the lungs of tetrapods. Since they are formed in the same vein. Few fishes that have an open swim bladder employs it as a breathing organ.
Water! (abiotic)
If water runs out then everything dies! :)
Thanks for the opportunity to answer your question and I hope this help! :)
Answer:
They would be color blind.
Explanation:
For example, if the red cone is missing you will be unable to see colors containing red as clearly. There are several different types of color blindness. Dichromatism is when one of the cones is missing.
C) all the offspring will be genetically identical.
Explanation:
During binary fission, all the offspring will be genetically identical and little to no variation occurs.
Binary is an asexual form of reproduction which does not involve the combination of gametes from the parents.
- During binary fission, the parent simply divides to produce young ones.
- In this process, the offspring replicates the genetic component of the parents making it identical.
- The offspring is a direct copy of the parents.
- It is only in sexual reproduction that genetic materials are exchanged between the parents and offspring. This leads to genetic variation.
Learn more;
Asexual reproduction brainly.com/question/9424950
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