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One difference between a gastrovascular cavity and a complete digestive tract?
A gastrovascular cavity is a digestive sac with only a single opening. A complete digestive tract (otherwise known as an Alimentary canal) has two openings (a mouth and anus) between its digestive tubes unlike the gastrovascular cavity in which food is ingested and eliminated through the same opening (example would be hydra)
Do clams have a complete or incomplete digestive tract?
They have complete digestive system.
How many openings do planarians have in their digestive system?
2
What are the 2 digestive glands that are found outside the digestive tract?
There are two types of glands.Two salivary glands and pancreas.
What is the structure of the digestive tract?
Digestive tract is made up of four layers . 1 serosa is outer layer . 2 Muscle layer is second part. 3 sub mucosa is third layer . 4 mucosa is the inner most layer .
What type of acid is in the digestive system?
You have the hydrochloric acid there in the digestive tract. That means in the stomach and proximal part of the duodenum. The acid is very strong. The pH can go down to 2.
Do mollusk cells have a nucleus?
No. There are different classes of mollusks. Gastropods (shell-less or single-shelled), Bivalves (2 shells held together by 1 of 2 powerful muscles), and Cephalopods (Small internal shells or no shells at all)
The digestive enzyme amylase is normally secreted into which two regions of the digestive tract?
The digestive enzyme-amylase is secreted in two regions of the digestive tract.i.e.(1) salivary amylase by salivary glands in the buccal cavity.(2) pancreatic amylase by pancreas in the duodenum.
What body system is the anus a part of?
The anus belongs to the digestive system because, it is apart of your colon which is in the GI tract (gastro-intesntine tract).
Describe the two important roles of gut movements?
Gut movement is also known as peristalsis which, quite literally means the wavelike muscle contractions of the digestive tract. Peristalsis occurs for two main reasons: 1) To move the food along throughout the digestive tract so as to move it closer and closer to your anus for excretion. 2) To make sure the nutrients are being absorbed from the food as well as exposing it to the digestive juices secreted from your digestive system so that it may be entirely digested.
What are 2 types of excretion?
Excretion is necessary to remove wastes and unusable products from an organism. In humans, the kidneys and the digestive tract (colon) produce these but the lungs and the skin do as well.
What is the sequence that makes up the digestive tract?
The parts of the digestive system in order are: Mouth, Throat, Esophagus, Stomach, Small Intestine, Large Intestine, Anus. However, of these the only organs are the stomach and the intestines (small and large). The gallbladder secretes bile to help break down food.
