Lancelets is the group of chordates that has a notochord and includes separate males and females.
Lancelet exhibits the four basic characteristics of phylum Chordata. It has a dorsal nerve, a notochord, a post annul tail, and pharyngiall gill slit.
Jawless fish, cartilaginous fish, and bony fish have notochord when they were still young but it was replaced by a vertebral column as they mature.
<span>Lancelets are included in the subphylum cephalochordata. Cephalochordates are gonochoristics. It means that the sexes are separate. Both sperm and eggs cells are released in the water where fertilization occurs.</span>
Answer
Lower Mantle-under high pressure and nearly solid.
Lithosphere-contains the crust
Core-creates the Earth’s magnetic field
Asthenosphere-most deformable layer.
Explanation
The mantle is located below the crust and it occupies the largest volume of the Earth’s volume. The mantle behaves like a plastic and at high pressures and temperatures the rocks in the mantle deform
The lithosphere is the outer shell that contains the crust and upper mantle. The lithosphere is divided into the oceanic layer and the continental layer. It is bounded by the atmosphere and the Asthenosphere.
Answer:
Heterogeneous mixtures are substances not mixed together.
Explanation:
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Answer:
Endocrine, or ductless glands, while Exocrine glands are all ducted glands.
Explanation:
Endocrine glands secrete substances (like hormones) into blood without the use of ducts, whereas exocrine glands use ducts to secrete substances into the external environment.
Answer is the mRNA
Explanation
