Explain how chordates reproduce
Explain how chordates reproduce?
Expert
The reproduction in beings of phylum Chordata is sexual, with the exemption of urochordates which can as well reproduce asexually. In certain classes (that is, osteichthyes fishes, cyclostomes, and amphibians) there is larval phase. With rare exceptions, amphibians, fishes, reptiles and monotreme mammals are oviparous, egg-laying (that is, embryos develop in eggs and exterior to the mother’s body) and marsupial and placental mammals are viviparous (that is, embryos develop within the mother’s body, feeding from her).
Write down the main plant tissues which form rings observed on the stem sections of some trees?
As Compared to mammals, do birds absorb less or more water in their digestive system? Explain why this phenomenon is an adaptation to flight?
Specify some of the antigen-presenting cells of immune system?
Give a brief description of zymogens?
Write down the differentiation between smallpox (variola) and measles?
Give some illustrations of annelids? Answer: Leeches, Earthworms and lugworms.
Specify epidemiological association between hemophilia and HIV infection?
Explain whether the arteries or veins comprises of more muscle tissue? How the walls of these two types of blood vessels are different?
What are the best recognized representatives of the platyhelminth phylum?
Describe briefly plant root hairs? Where they can found and also write down there function?
18,76,764
1944041 Asked
3,689
Active Tutors
1432103
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!