Members of Porifera are diploblastic. Which statement clarifies this? A. They are unsegmented. B. They have a true body cavity. C. They have two germ layers.

Which of the following statements is true? (there may be more then one answer) 1. all multicellular organisms have circulatory systems. 2. all multicellular organisms have specialized cells. 3. All multicellular organisms have skeletal systems.

What word refers to traces of an organism that existed in the past?

How many planets are in the Earth's solar system? A. 5 B. 6 C7 D. 8

The main source of energy for wind and ocean currents on Earth is

Which of the following correctly lists the selected taxonomic levels in order of increasing specificity of organisms?

The average distance between the center of the Earth and the center of its moon is 3.84 x 108 m. The mass of the earth is 5.97x1024kg. What is the orbital speed and period of Earth's moon? V, - 1.02 x 10 m/s V, = 3.26 x 10ʻm/s T = 2.37 x 10° s = 27.

How was the present day theory of evolution developed?

Darwin often used the phrase "_[blank]_" to suggest that species must have descended from preexisting species and that changes in the species took place over long periods of time on the origin of species descent with modification descent with

Which phrases describe faults? Check all that apply. are cracks in Earth's crust cause gaps in the geologic record cause rocks to break and move are younger than surrounding rocks are igneous rocks that form beneath Earth's surface

The fibers that connect the two halves of the brain are called the