Which feature is found in sponges that classify them as animals?
a. Organs
b. Symmetry
c. None of these features are found in sponges
d. Heterotrophs
e. Tissues
d
You might also like to view...
Match each of the following cellular processes to the stage of meiosis in which it occurs. (Select all correct processes for each meiotic stage. Each cellular process may be used more than once.)
Stage Cellular processes prophase I a. Microtubules search for and attach to kinetochores at the centromere of each chromosome. metaphase I b. Microtubules from both sides of the spindle tether each chromosome and move them to the center of the cell. anaphase I c. Microtubules from both sides of the spindle tether each bivalent and move them to the center of the cell. telophase I d. Chromosomes condense to thickened structures that are visible under the microscope. prophase II e. The centromere divides and the sister chromatids separate. metaphase II f. The nuclear envelope reforms around the segregated chromosomes. anaphase II g. Two new chromosomes form from each original chromosome. telophase II h. The nuclear envelope disappears. i. Microtubules pull chromosomes toward opposite poles. j. The spindle assembles from tubulin dimers as the centrosomes migrate to opposite poles k. Chromosomes arrive at opposite poles of the cell. l. Chromosomes decondense. m. The spindle disappears. n. The bivalents separate and the homologous chromosomes move apart. What will be an ideal response?
There are two types of genetic drift. Describe and give an example of the founder effect
What will be an ideal response?
Which of the following statements is NOT TRUE?
a. Photons are packages of solar energy. b. Each photon consists of a fixed amount of energy. c. The least energetic photons travel in longer wavelengths. d. Photons with different energy levels are perceived as exhibiting different colors. e. Photons of visible light have wavelengths longer than 750 nanometers.
In an mRNA molecule, each 3-base sequence is called a ____________ . Any one amino acid can be coded for by several of these 3-base sequences.
What will be an ideal response?