Asked by Kyara Negra on May 02, 2024
Verified
Foraminiferan and radiolarian lineages are related, but different in that one ____ and the other ____.
A) has a mineral-based shell; does not have a mineral-based shell
B) has a chalk shell; has a silica shell
C) has a shell; does not have a shell
D) is heterotrophic; is completely autotrophic
E) has a single, large mitochondria; has many large mitochondria
Foraminiferan
Marine protozoans with calcareous shells, found in both fresh and marine waters, which are often used as indicators in paleoclimatology studies.
Radiolarian
Microscopic, planktonic marine organisms with intricate silica skeletons, used as paleoclimatic indicators.
Mineral-based Shell
A hard, protective outer layer created by some organisms, composed primarily of minerals.
- Specify the unique traits that differentiate among protist categories.
- Recognize the evolutionary relationships among various protist groups.
Verified Answer
ZK
Zybrea KnightMay 08, 2024
Final Answer :
B
Explanation :
Foraminiferans have shells primarily made of calcium carbonate (chalk), while radiolarians have shells made of silica.
Learning Objectives
- Specify the unique traits that differentiate among protist categories.
- Recognize the evolutionary relationships among various protist groups.