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vlabodo [156]
3 years ago
10

Which is NOT a shared characteristic of all chordates?

Biology
2 answers:
madreJ [45]3 years ago
8 0
<span>A. A ventral, solid nerve cord.
</span>some have it solid but most of them have a Hollow one.
adoni [48]3 years ago
4 0

Answer:

thw answer is A

Explanation:

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State three items that are absorbed by the plant system ?
lawyer [7]
Water, sunlight, oxygen.
3 0
2 years ago
Please help asap i will mark brainliest
castortr0y [4]

Answer:

Last option

Explanation:

Mitochondria because they are smaller than cells and have membranes

8 0
3 years ago
What bones contribute to the formation of the orbit?
Rufina [12.5K]
Frontal bone, lacrimal, maxilla, ethnoid, zygomatic and palatine contribute to the formation of the orbit.

Happy Studying! ^=^

6 0
4 years ago
The reason that there are Okazaki fragments during DNA replication is ultimately because:
rusak2 [61]

Answer:

B) Polymerases can only synthesize in the 5' to 3' direction

Explanation:

The leading strand's directionality is 3' to 5', so polymerase has no problem with replicating this one. But the lagging strand has the opposite directionality, so the polymerase must work in the opposite direction of the replication fork.In consequence, the replication process undergoes periodic breaks, and the enzymes have to stop and start again while helicase separates both strands, resulting in the polymerization of okazaki fragments.

5 0
3 years ago
Which of the following organelles is the principal and distinquishing feature of the eukaryotic cell? A. ribosomes B. chloroplas
dsp73

Answer:

E. Nucleus

Explanation:

All living organisms were classified into three major domains viz: Eukarya, Archaea and Bacteria. Eukarya are referred to as EUKARYOTES while the other two domains are collectively referred to as PROKARYOTES.

The major basis of this classification is the presence or absence of a membrane bound NUCLEUS. Eukaryotes are organisms characterized by the possession of a membrane-bound nucleus that houses their genetic material (DNA) while prokaryotes lack a nucleus and hence, their genetic material is found naked in the cytoplasm. Although, prokaryotic cells lack other membrane-bound organnelles like Chloroplast, mitochondria etc. but nucleus is the basis of this classification:

EU meaning TRUE, KARYA meaning NUCLEUS, hence Eukarya means organisms will true nucleus.

3 0
3 years ago
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