The correct answer is option E
The kingdom Protista includes large diversity of organisms ranging from flagellated cells to macroscopic organisms. It is sometime referred as Protoctista instead of Protista. Some of the ancient Protista’s have characteristics of animal and plant kingdom. For example Lichen is not a protist but it includes the characteristics of both Protista and Fungi. Likewise organisms such as algae, bacteria, ciliates have the features of Protist as all these are Eukaryotic cells. Since the formation of kingdom Protista many animals have been included and excluded from the kingdom. Even today red and brown algae are considered as protist
Answer: Option A) nucleus
Explanation:
Prokaryotic cells lack nuclear envelope, thus the nucleus is absent in Prokaryotic cells.
On the other hand, eukaryotic cells possess membrane bound nucleus and nuclear envelope.
Thus, nucleus is the answer
Answer:
C. The lungs
Red blood cells pick up oxygen in the lungs. Blood travels away from the heart and lungs through the arteries. Red blood cells drop off oxygen to the cells through tiny tubes called capillaries. Blood then returns to the heart through the veins and the cycle begins again.
Answer:
D
Explanation:
Normally if a scientist isn't present, more mistakes tend to occur and if there is a scientist, they can make more accurate claims and such.
I think the answer is D :) ........
