What invertebrate group is most closely related to chordates?
1.Arthropods
2.Cnidarians
3.Echinoderms
4.Molluscs
3
You might also like to view...
Which is true about the invertebrates?
a. They are all deuterostomes. b. Among these animals, the initial indentation in the embryonic ball always becomes the anus. c. All invertebrates share bilateral symmetry. d. They include the simplest living animals. e. Invertebrates only have a simple backbone.
The parasite Plasmodium, the causative agent of malaria, has a complex life cycle, including both sexual and asexual reproduction. Where does zygote formation (the fusion of two gametes to produce new sporozoites) occur?
1.In the gut of the female mosquito.
2.In the liver of an infected human.
3.In the red blood cells of an infected human.
4.In the liver of the male mosquito.
Which part of the eye contains most of its blood vessels?
a. choroid. b. retina. c. sclera. d. choroid. e. cornea.
Photosynthesis is driven by the ________ light spectrum
A) visible B) ultraviolet C) infrared D) microwave