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kaheart [24]
3 years ago
9

Ancient chordates are thought to be most closely related to echinoderms because the embryos of chordates and echinoderms are

Biology
2 answers:
Ulleksa [173]3 years ago
6 0
The answer is sea stars. Sea stars can then push their stomachs out of the body while inserting it into the prey thus the food is being digested externally. Echinoderms are having 5 or at times multiple of 5 arms. Their shell is made of calcium carbonate.
Natali5045456 [20]3 years ago
6 0

Answer:

Both show similarities in their embryos- Radial cleavage, Indeterminate cleavage and blastopore become the tail end.

Explanation:

Chordates and echinoderms show similarities in their embryological development-

1. Radial cleavage: in there 8 cell stage has 2 different tiers of cells, 4 cells each. Each cell directly above or below another.

2. Indeterminate cleavage: cells can develop into an entire embryo if separated in an early stage.

3. Blastopore turns into the tail end or posterior end except for few molluscs and other protosomes.

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olga2289 [7]

The answer is false.

Energy used by the body to perform muscular contractions and many other energy-required functions is adenosine triphosphate or ATP.

The most important function of ATP is its ability to store and transport chemical energy within cells. That energy can be used for many chemical processes such as muscle contraction, nerve impulse propagation, chemical synthesis.. When consumed in metabolic processes as an energy source, it becomes converted either to adenosine diphosphate (ADP) or to adenosine monophosphate (AMP) because one or two phosphate groups are released (hydrolysis of high-energy bonds).

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3 0
3 years ago
Primary consumers depend on energy from plants for survival. Higher consumers depend on energy from primary consumers for surviv
yaroslaw [1]
The answer is C
The more plants there are, the more consumers there are. If there aren't enough plants, the consumers have no way of getting energy, and therefore cannot survive. The species also matters, because certain species of plants can only be eaten by certain species of consumers.
4 0
3 years ago
What determines the identity of an atom?
user100 [1]
Its number of protons
5 0
3 years ago
what is a Ballad poem, is it a long, melodious poem that narrates a story or a long poem with a complex plot, elevated language,
natali 33 [55]
A ballad poem is <span>a poem or song narrating a story in short stanzas. It is a </span>popular narrative song passed down orally. In the English tradition, it usually follows a form of rhymed (abcb) quatrains<span> alternating four-stress and three-stress lines. Folk (or traditional) ballads are anonymous and recount tragic, comic, or heroic stories with emphasis on a central dramatic event.
</span>
ANSWER: <span>a long, melodious poem that narrates a story</span>
8 0
3 years ago
The gas giant with the most moons is _.
Rama09 [41]

Answer:

Jupiter

Explanation:

63 moons

hope this helps :)

6 0
3 years ago
Read 2 more answers
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