Answer:
Red algae - acquired plastids by secondary endosymbiosis
Explanation:
Red algae are believed to have undergo a primary endosymbiosis event. Then a second endosymbiosis event created a large group known as heterokonts. During the primary endosymbiosis event red algae acquire their plastids.
Answer:
Splitting.
Explanation:
The endosymbiont theory explains the evolution of the organelles of eukaryotes by the ingestion of the materials of prokaryotes. Various evidence are available for the endosymbiont theory origin.
The mitochondria and chloroplast contains the similar RNA sequence and their genetic material is limited. The chloroplast and mitochondria divides by the process of splitting.
Thus, the answer is splitting.
C. Common Ancestors are the animals that we evolved from
Answer:
The pectoralis muscle moves the front limb inward and the transverse abdominal muscles moves the posterior limiting membrane up. The limbs are brought into the shell, pushing up on the lung, causing air to expel by the muscles contracting.
To Breathe air in, the serrates muscle pulls out, the abdominal oblique pulls down and the weight of the viscera allows air to flow in, via negative pressure.
Explanation:
hope this helps you if not sorry :)
