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RUDIKE [14]
3 years ago
6

Which statement describes a characteristic of a spiral galaxy?

Biology
1 answer:
artcher [175]3 years ago
4 0

Answer:

If your just looking for a description here you go.

Explanation:

Most spiral galaxies contain a central bulge surrounded by a flat, rotating disk of stars. The bulge in the center is made up of older, dimmer stars, and is thought to contain a supermassive black hole. Approximately two-thirds of spiral galaxies also contain a bar structure through their center, as does the Milky Way.

Hope this helps.

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How do the rocks at Lake Mead support the theory of plate tectonics?<br><br> (pls help)
docker41 [41]

the theory of plate tectonics states that the crust of earth is divided into plates which are slowly moving

Explanation:

3 0
2 years ago
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Vincenzo bellini, gaetano donizetti, and gioacchino rossini were all:
FromTheMoon [43]
<span><span>Vincenzo Bellini, </span><span>Gioacchino Rossini, </span>Gaetano Donizetti </span>were all opre singers they lived in germany and were classical opre singers they released an album in 1988  also i think this would fall under "arts"
6 0
4 years ago
In the future, phylogenetic studies should be conducted to ________. In the future, phylogenetic studies should be conducted to
Artist 52 [7]

Answer:

a. resolve the branching patterns (evolutionary history) of the Lophotrochozoa

b. (the same, it is repeated)

Explanation:

Nemertios (ribbon worms) and foronids (horseshoe worms) are closely related groups of lofotrocozoa. Lofotrocozoans, or simply trocozoans (= tribomastic celomados with trocophoric larva) are a group of animals that includes annelids, molluscs, endoprocts, brachiopods and other invertebrates. They represent a crucial superphylum for our understanding of the evolution of bilateral symmetry animals. However, given the inconsistency between molecular and morphological data for these groups, their origins were not entirely clear. In the work linked above, the first records of genomes of the Nemertine worm Notospermus geniculatus and the foronid Phoronis australis are presented, along with transcriptomes along the adult bodies. Our phylogenetic analyzes based on the genome place Nemertinos as the sister group of the taxon that contains Phoronidea and Brachiopoda. It is shown that lofotrocozoans share many families of genes with deuterotomes, suggesting that these two groups retain a common genetic repertoire of bilaterals that do not possess ecdisozoans (arthropods, nematodes) or platizoos (platelets, sydermats). Comparative transcriptomics demonstrates that foronid and brachiopod lofophores are similar not only morphologically, but also at the molecular level. Although the lofophore and vertebrates show very different cephalic structures, the lofophorees express the vertebrate head genes and neuronal marker genes. This finding suggests a common origin of the bilaterial pattern of the head, although different types of head will evolve independently in each lineage. In addition, we recorded innate immunity expansions of lineage-specific and toxin-related genes in both lofotrocozoa and deuterostomes. Together, this study reveals a dual nature of lofotrocozoans, in which the conserved and specific characteristics of the lineage shape their evolution.

8 0
3 years ago
Asexual reproduction produces _____.
Sauron [17]
Asexual reproduction produces <span>a direct clone of the parent.
The other terms are related to sexual reproduction.

Asexual reproduction or asexual reproduction is a mode of reproduction, which (as opposed to sexual reproduction) corresponds to the capacity of living organisms to multiply alone, without a partner, without involving the fusion of two gametes of opposite sexes.

The mechanism of the reproduction is by </span>mitosis, <span /><span>budding or </span>scissiparity.<span>
</span><span>
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3 0
3 years ago
Which statement about the nervous system is true?
Annette [7]

Answer:

c

Explanation:

it would be c because the nervous system works just like electric wires

5 0
2 years ago
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