Three types of muscles is skeletal muscle, cardiac muscle and smooth muscle .
Therapsids has both characteristics that possessed by mammals and reptiles.
For example :
The skull. Therapsids skull is the combination between the skulls of reptiles (that have many several bones) , and the skull of mammals
The teeth. All The teeth in a reptile usually has the same sizes. But the occipital condyle in many therapsids became double just like in mammals
hope this helps
Answer: the statements are not given, so I will state the role of calcium in plants.
Calcium pectate, is responsible for holding together the cell walls of plants, it is also used in activating certain enzymes and to send signals that coordinate certain cellular activities in plants. Calcium helps to maintain chemical balance in the soil, it reduces soil salinity, and improves water penetration within soil.
When there is calcium deficiency, it leads to localized tissue necrosis causing stunted plant growth, dead leaf margins or curling on the leaves, and eventual death of terminal buds and root tips of the soil/plant.
Excess levels calcium in the soil can reduce a plant's uptake of other important nutrients such as phosphorus, magnesium, boron, potassium, copper, zinc or iron, leading to deficiencies of these nutrients.