True or false closely related embroyos look more alike - and for a longer time than embryos of distant relatives?

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∙ 11y ago

Updated: 4/28/2022

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∙ 11y ago

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What is the significance of Protochordates?

The name Protochordates literally means 'the first chordates.' The chordates include fish, amphibians, reptiles, birds and mammals. The protochordates fall into two broad groups or subphyla - the Urochordata and the Cephalochordata. Urochordata The urochordata includes the group known as the tunicates - animals whose free-swimming larvae have a notochord* and a nerve chord. The adults are sessile - that is to say they are anchored to one place on the Reef. CephalochordataCephalochordates, or lancelets, are fish-like animals that have a notochord and nerve chord along the entire length of their bodies and which persist all their lives. * A notochord is a an elongated cellular chord enclosed in a sheath, that forms the primitive skeleton of chordate embryos (including humans) and adult cephalochordates. The name Protochordates literally means 'the first chordates.' The chordates include fish, amphibians, reptiles, birds and mammals. The protochordates fall into two broad groups or subphyla - the Urochordata and the Cephalochordata. Urochordata The urochordata includes the group known as the tunicates - animals whose free-swimming larvae have a notochord* and a nerve chord. The adults are sessile - that is to say they are anchored to one place on the Reef. Cephalochordata Cephalochordates, or lancelets, are fish-like animals that have a notochord and nerve chord along the entire length of their bodies and which persist all their lives. * A notochord is a an elongated cellular chord enclosed in a sheath, that forms the primitive skeleton of chordate embryos (including humans) and adult cephalochordates.

During gestation embroyos normally develop in?

Embryos normally develop in the uterus of the female reproductive system. The uterus provides a safe and nourishing environment for the embryo to grow and develop during gestation.

What is suggested by the similarity of early embryos of different species of vertebrates?

evolution from a distant common ancestor

Why frogs always use in research?

Frogs are mostly used in research because they are the closest living relatives to man that are easy to raise in captivity and their embryos are easily handled when doing studies.

Would you expect embryos of closely related species or distantly related species to have the greater similarity?

Embryos of closely related species are expected to have greater similarity due to their shared ancestry and genetic similarities. During early development, many fundamental processes and structures are conserved among species that are closely related. In contrast, distantly related species may exhibit more divergent developmental pathways, leading to greater differences in their embryonic forms. This phenomenon is often demonstrated in comparative embryology, where similarities in early stages can indicate evolutionary relationships.

What is the stage of the plant embryos in which the embryos are alive but not growing?

dormancy

Where do mammal embryos get their warmth from?

From the mother's body, - they are inside it while they are embryos.

What type of embryos have pharngeal slits?

All chordates embryos have pharngeal slits.

When was The One with the Embryos created?

The One with the Embryos was created on 1998-01-15.

Do early chick and pig embryos have a similar structure and appearance?

The early embryos of all animals have a very similar appearance. This is no different for chicken and pig embryos.

What is the source of nourishment for developing fish embryos is?

what is the source of nourishment for developing fish embryos?

How many healthy embryos were left after Marie's fertilized embryos were screened in the movie 'Gattaca'?

4

How are embryos frozen?

Embryos are frozed in liquid nitrogen through a process called cryofreezing. Embryos are generally frozen to be stored for long periods of time or if they have to be trasported to a different location.