Answer:
In the natural world, limiting factors like the availability of food, water, shelter and space can change Animal and plant population. Are they limiting factors, like competition for resources, predation and disease Can also impact populations. Other changes in limiting factors will cause a population to decrease
Explanation:
Chordates
Chordates have the 4 unique characteristics, postanal tail, notorchord, pharyngeal gill slits and dorsal-hollow nerve cord. Lancelets is the group of chordates that has a notochord and includes separate males and females.
Lancelet exhibits the four basic characteristics of phylum Chordata. It has a dorsal nerve, a notochord, a post annul tail, and pharyngiall gill slit.
Jawless fish, cartilaginous fish, and bony fish have notochord when they were still young but it was replaced by a vertebral column as they mature.
<span>Lancelets are included in the subphylum cephalochordata. Cephalochordates are gonochoristics. It means that the sexes are separate. Both sperm and eggs cells are released in the water where fertilization occurs.</span>
The benthic organism is an organism that lives on, in or near the seafloor. This also helps the environment and marine life by providing structure, alter water currents, and stabilize shorelines, hard substrate settlement. Some recycle nutrients and improve water quality. An animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes.
I hope this counts - cell wall! helps keep most materials out but allows specific materials to pass through. animal cells do not have a cell wall
A gastric intestinal tract is a series of hollow organs joined in a long twisting tube from mouth to anus . The hollow organs that make up GI tract are mouth , oesophagus, stomach , small intestine , large intestine and anus.
<h3>What is the function of GI tract ? </h3>
The function of GI tract is to breakdown of food into Carbohydrates ,fats and proteins.
2) The physiological functions of digestive tract is to digest and absorb food then excrete the waste products with the help of the liver, gall bladder, pancreas,small intestine ,large intestine and rectum.
The topic of small intestine ,I found the most valuable because it performs absorption .
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