What is a typical physical characteristic of fetal alcohol syndrome?
Physical defects Distinctive facial features, including small eyes, an exceptionally thin upper lip, a short, upturned nose, and a smooth skin surface between the nose and upper lip. Deformities of joints, limbs and fingers. Slow physical growth before and after birth. Vision difficulties or hearing problems.
What class and characteristics do the brittle stars share?
What class and characteristics do the brittle stars share? Ophiuroidea: slender legs, single set of organs, feed on detritus/small animals.
What do brittle stars look like?
Description. A brittle star is made up of an obvious central disk and five or six arms. The central disk is small and clearly offset from its arms, which are long and slender. Although brittle stars don’t have brains or eyes, they do have a large stomach, genitals, muscles, and a mouth surrounded by five jaws.
Which of the following are common characteristics of fetal alcohol syndrome quizlet?
Children with fetal alcohol syndrome have facial features such as small eyes, a thin upper lip, and a smooth philtrum (the groove between nose and upper lip). They also can have: Poor growth. Newborns may have low birth weights and small heads.
How is fetal alcohol syndrome diagnosed?
To diagnose fetal alcohol syndrome, doctors look for unusual facial features, lower-than-average height and weight, small head size, problems with attention and hyperactivity, and poor coordination. They also try to find out whether the mother drank while they were pregnant and if so, how much.
What characteristic do sea stars and brittle stars have in common?
They typically have a tough, spiny surface, which inspired their name (in Greek, echinos means “spiny” and derma means “skin”). They also have the unusual ability to regrow lost body parts, and sea stars and brittle stars can regrow arms if broken off or eaten.
What characteristics do sea stars and brittle stars have in common?
How do brittle stars differ from sea stars?
The key difference between starfish and brittle star is the mode of movement; starfish uses tube feet for their movement whereas brittle star moves using their long arms. Additionally, the starfish has a complete digestive system with both mouth and anus. Also, starfish has short arms while brittle star has long arms.
How do brittle stars See?
They are blind. However, the team knew that the bodies of both brittle stars are studded with light receptors called opsins. pumila may not be able to see, but it can sense light; when exposed to light, it hides in sand or crevices right where it is.
What is the classification of a brittle star?
Ophiuroidea
Brittle stars/Scientific names
What are the facial features of fetal alcohol syndrome?
Abnormal facial features, such as a smooth ridge between the nose and upper lip (this ridge is called the philtrum) Different terms are used to describe FASDs, depending on the type of symptoms. Fetal Alcohol Syndrome (FAS): FAS represents the most involved end of the FASD spectrum.
How many babies are born with fetal alcohol syndrome?
Between 35,000 and 50,000 are born with related disorders. However, most cases go undiagnosed or misdiagnosed. A diagnosis of Fetal Alcohol Syndrome (FAS) is based on certain criteria: facial features, small birth weight, central nerous system dysfunction, and history of prenatal exposure to alcohol.
What happens to the fetus when you drink alcohol?
Impairment of facial features, the heart and other organs, including the bones, and the central nervous system may occur as a result of drinking alcohol during the first trimester. That’s when these parts of the fetus are in key stages of development.
What kind of food does a brittle star eat?
Feeds on fine particles in the water, detritus or other animals. -Brittle Stars are very fragile and can cast off one or more arms if disturbed or caught by a predator. These breaks can occur anywhere beyond the disc and the lost portions can be regenerated.