<span>'Occasionally during pregnacy the placenta can seperate from the uterus. This causes a disruption in development and sometimes death of the fetus. Harm to the developing fetus might occur because the placenta'
The answer you're looking for is probably along the lines of 'transfers oxygen and nutrients to the fetal blood.
Hope this helped!</span>
Answer:
The answer to the question above is option B (Eumetazoa and Lophotrochozoa)
Explanation:
Cycliophorans exhibit sexual dimorphism, they live on the mouthparts of their lobster hosts using anterior buccal funnel; oval-shaped trunk; and posterior, acellular stalk, with an adhesive disc which they use to attach themselves to their hosts’ mouthparts. Cycliophorans do not feed during free swimming stages and are filter feeders during their sessile stage.
Cycliophorans live on lobsters, they do not generally adversely affect their hosts, although it is possible for large numbers of cycliophorans to clog their host's mouthparts.
Coelom is the fluid-filled cavity within the body of most multicellular animals, except some invertebrates, it acts as a cushion for the internal organs of the organism. Animals which have a space between their digestive tract and body wall and entirely lined by mesoderm are termed as coelomate animals.
Eumetazoans include radially-symmetrical animals and bilaterally-symmetrical animals that have true tissues organized into germ layers, and an embryo that goes through a gastrula stage, and are distinguished by their characteristic epithelia,
The characteristic features of the group lophotrochozoa are, they are animals with ciliated larval phase, and they have the presence of a trochophore larvae and a feeding structure called lophophore.
(4) People who have the O blood type possess no enzymes capable of attaching N-acetylgalactosamine or galactose on RBC membrane glycolipids at the end of the oligosaccharide chain. It’s the people with AB blood type who can possess enzyme with that capability.
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In this virtual lab, grow two species of paremecium in test tubes and record data on their population growth. Experiment shows that when grown together, one species will die, illustrating the competitive exclusion principle.
Answer:
The answer is D) experiment
Explanation:
the only answer on here that changes multiple times is an experiment.
