Biology Questions
Explore questions in the Biology category that you can ask Spark.E!
What mesoderm makes urinary and reproductive systems?
What forms throughout the nephrogenic cords?
opening between the right and left atria to supply blood to head, upper and lower extremities.
which period?- first two weeks after conception, rapid cellular multiplication and differentiation, establishment of embryonic membranes and primary germ layers
which period?- third week to eighth week after fertilization, organogenesis, germ layer formation, vulnerable to environmental insults, placenta, brain, spinal cord, heart beats, limbs, eyes, ears, nose, genitals begin to develop
how many mL of amniotic fluid should the mother have at 24 weeks gestation?
how many vessels should be present in the umbilical cord? What is the acronym to remember this?
the placenta develops from which type of cells?
by which day after fertilization should the fertilized ovum implant into the endometrium?
which period?- week 9 until birth, embryo is now referred to as a fetus, rapid body growth and differentiation of tissues, organs and systems
returning blood bypasses the lungs and goes to the aorta
blood from the umbilical cord and placenta bypasses the liver and enters the inferior vena cava
Who came up with the floral theory in the 18th century
When did Linneaus write the Species Plantarium?
how many days after fertilization does it take for the egg to reach the uterine cavity?
What is the year you need to remember?
Floral Formula: what does a bar above G mean
How are the ages of geological events determined?
the decay of radioactive parent atoms into stable daughter atoms occurs at a _______ rate
When did photosynthesis and oxygen accumulation evolve?