Answer:
cools off
Explanation:
B. serosa, mucosa, submucosa, and muscularis externa
C. submucosa, serosa, muscularis externa, and mucosa
D. mucosa, submucosa, muscularis externa, and serosa
The order of the lumen layers is mucosa, submucosa, muscularis externa, and serosa. The correct option is D.
The gastrointestinaltract is indeed the digestive tract or passageway that connects the mouth to the rectum. In humans and other animals, the GI tract contains all of the major organs of the digestivesystem, including the esophagus, stomach, and intestines.
The alimentarytract's primarily chief function is to transform food into absorbable particles and transport them to the body's other organs.
Every organ of the alimentarycanal has the same four basic layers, from the esophagus to the rectalcanal.
Mucous membrane, submucosa, muscular layer, and serous layer are the correct layers within the alimentary canal wall from inside to outside.
Thus, the correct option is D.
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egg
B.
pupa
C.
larva
D.
adult
which of the following would be the best method of doing so?
(a) carry out a survey of people with normal bone density to find out whether they
take Vitamin D tablets or not
(b) compare the bone density of two groups of people with low bone density after
providing only one of the groups with Vitamin D
(c) compare the incidence of people with low bone density in two different populations
(d) carry out an experiment in which a group of people with normal bone density are
exposed to very little sunlight to prevent the production of Vitamin D
Answer: A
Explanation:
A agrees with the original statement, so if Fred cannot swim it must be absolutely true that he is not one of Kay's brothers. Dave being able to swim would support that he is one of Kay's brothers, not refute it. Walt being able to swim does not automatically mean he is related to Kay, so that is not necessarily true. Pete being unable to swim also refutes the original statement. Mark not being Kay's brother has no correlation to his swimming ability.
During passive transport, energy is used to move material against a concentration gradient.
During active transport, water is pumped across a membrane to equalize the concentration of salts on both sides.
During passive transport, osmosis allows salts to move from one side of the membrane to the other to equalize concentrations on both sides.
Answer;
A. During active transport, a material may be moved from an area of low concentration to an area of high concentration.
Explanation;
-Active transport involves movement of molecules or particles against a concentration gradient (from a region of low concentration to a region of high concentration). This movement of particles against the concentration gradient requires an input of energy from the cell in the form of ATP.
- Passive transport on the other hand involves movement of materials from a region of high concentration to a region of low concentration and does not utilize energy. Passive process are processes such as osmosis and diffusion.