The mechanical and chemical receptors that control digestive activity are located in the walls of the tract organs.
Atmospheric Fixation. The enormous energy of lightningbreaks nitrogen molecules and enables their atoms to combine with oxygen in the air forming huge nitrogen oxides. These dissolve in rain, forming nitrates, that are carried to the earth.
Answer:
Explanation:
Cladogram is a diagram used to explain the evolutionary relationship between organisms.
It is based on the DNA of different species of animals that is involved.
To study the features or characteristics of organism involved, the data of the organism’s genome is used this is because it provides the required information needed to draw a cladogram effectively.
Cladistics uses characteristics shared among the organisms to establish relationship between them. This is used to proof shared ancestry.
Answer:
C. lower concentrations of urea, uric acid, and ammonia and higher or equal concentrations of glucose
Explanation:
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<u>Coquina</u> is the sedimentary rock is made up of pieces of shells.
Two types of sedimentary rock: Clastic and chemical sedimentary rocks
Explanation:
Coquina is the sedimentary rock formed by fragments or pieces of shells of marine animals like mollusks, brachiopods, trilobites and certain invertebrates.
The shells of marine animals are fragmented due to abrasion and mechanical degradation and sorting by the wave action and chemicals present in the sea water and gets transported which then sediments to form rock structures called coquina. The shells mostly contain calcium carbonate.
Chalk is the sedimentary rock formed b the fossil shells fragmented from foraminifers. This is a more powdery type of limestone.
Depending upon the type of sedimentation, sedimentary rocks are of three types:
Clastic – Made from sedimentation of clastic (pieces from broken rocks) through the processes of mechanical weathering and lithification (cementing and compacting). sandstone, conglomerate
Chemical – Made from evaporation of water and precipitation of materials which were previously dissolved in a solution. Example: Rock salt, dolomite
Organic – Repeated accumulation and sedimentation of organic matter or remains from plant and animal sources like bones (calcium deposits). Example: coal.
