Examlex
The ________ _________ projects into a bivalve stomach to keep the contents whirling while releasing digestive enzymes.
Amniocentesis
A medical procedure used in prenatal diagnosis, where a small amount of amniotic fluid is sampled from the amniotic sac around a developing fetus.
Amniotic Fluid
The protective liquid contained within the amniotic sac that surrounds and cushions a developing fetus during pregnancy.
Gestation Period
The duration of time between conception and birth in which an embryo or fetus develops inside the mother's womb.
Length of Pregnancy
Typically refers to the gestation period in humans, approximately 40 weeks from the last menstrual period or 38 weeks from fertilization.
Q6: Spiders and insects have an excretory system
Q16: Molecular data support the hypotheses that metazoans
Q18: The _ stage is best adapted for
Q20: Select the list of characteristics typical of
Q35: The larva of phoronids is called the
Q41: When the central mass of yolk restricts
Q52: Throughout the descriptions of the various major
Q53: What is the specific structure in ciliates
Q55: Highly specialized insects such as bees and
Q82: The common name for chaetognaths is<br>A)arrow worms.<br>B)acorn