4. looking at the map, which area would produce an air mass that causes cold and dry weather? r

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird

Which major eukaryotic lineages form the bikonta, a monophyletic group characterized by two flagella as a synapomorphy?