Missing options are
A). Animals did not move on to land until flowering plants evolved.
B). Vertebrates appeared in the oceans before they moved on to land.
C). Vertebrates evolved on land and in the oceans at about the same time.
D). Shelled animals and fish appeared in the oceans at about the same time.
Answer:
The correct answer is B: Vertebrates appeared in the oceans before they moved on to land
Explanation:
The first vertebrates were fish (hagfish) and they appeared on Earth nearly 525 million years ago. During the Devonian period, 419 to 358 million years ago, they were evolved to tetrapods vertebrates (amphibians) that lead to the development of life in terrestrial habitats. These animals adapted the terrestrial environment by developing column, jaws, and a bony endoskeleton that also helped then survive against gravity. Therefore fossil record about terrestrial life is present after marine vertebrates evolved to land vertebrates.
False. The right side of the heart pumps oxygen-poor blood to the lungs to be re-oxygenated. For this reason, the right side of the heart is considered the pulmonary circuit pump. The left side of the heart pumps blood to the body, and is therefore considered the systemic circuit pump. ;)
Answer:
Absorbs co2 if I am correct
Explanation:
Cells in an organism can develop in different ways to perform different tasks.
On the off chance that the cell membrane can't carry out its activity appropriately, this can make the cell quit working legitimately. On the off chance that numerous cells have awful cell membrane , the illness can influence a whole organ or even the entire body. In a significant number of these cell membrane sicknesses, proteins inside the cell layer don't transport materials appropriately. It isn't really that the layer itself vanishes, rather that specific parts don't work. Water, salt, and different supplements can wind up plainly imbalanced, prompting side effects often detrimental.
Backpedaling to the house similarity, on the off chance that you evacuated the ways to your home, creatures could move in and cause harm. In the event that every one of the houses in an area lost their entryways also, the area would have significant irritation administration concerns.
