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larisa [96]
2 years ago
15

Which lipoprotein picks up cholesterol from your arteries and other places in the body and returns it back to the liver for furt

her metabolism?.
Biology
1 answer:
evablogger [386]2 years ago
3 0

High-density lipoproteins (HDL) refer to macromolecular complexes made up of lipids and that have the function of transporting dietary lipids to the liver.

<h3>What are lipoproteins?</h3>

They are macromolecules whose function is to package insoluble lipids in the aqueous medium of plasma and transport them from the intestine and liver to peripheral tissues and, from these, return cholesterol to the liver for elimination from the body.

<h3>Characteristics of High Density Lipoproteins (HDL)</h3>

  • They are synthesized and secreted by the liver and to a lesser extent by the intestine.

  • They transport cholesterol from peripheral tissues to the liver, this is known as “Reverse Cholesterol Transport”.

Therefore, we can conclude that lipoproteins are macromolecules whose function is to transport lipid molecules from one organ to another in the aqueous medium of plasma.

Learn more about lipoproteins here: brainly.com/question/16170788

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Which of the following may not have been possible without the presence of ozone in the atmosphere?
yuradex [85]
B) Oxygen may not have been able to accumulate in the atmosphere
8 0
3 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
In Montana, wild huckleberries rely on bears and other herbivores that consume their fruit to spread their seeds. As a result, t
9966 [12]

The huckleberry patches will provide a very high level of consumption efficiency.

<h3>What is consumption efficiency?</h3>

Consumption efficiency refers to the ability of a consumer to be able to derive the maximum level of consumption from a given resource or group of resources.

The huckleberries depend on the animals such as Bears as well as other herbivores for seed dispersal and propagation. These plants have therefore, develop efficient means to encourage dispersal by these animals. The seeds of the Huckleberries are enveloped in sweet, nutritious fruit that is comparatively undefended.

Therefore, the Bears and other herbivores will derive a very high level of consumption efficiency from the Huckleberry patches.

In conclusion, consumption efficiency measures the ability of a consumer to derive maximum consumption. High consumption efficiency implies that the resource provides a great deal of benefit and satisfaction to the consumer.

Learn more about consumption efficiency at: brainly.com/question/17456695

#SPJ1

8 0
1 year ago
Galaxies that are moving away from earth are?
bixtya [17]

Answer:

The galaxies are moving away from Earth because the fabric of space itself is expanding. While galaxies themselves are on the move — the Andromeda Galaxy and the Milky Way, for example, are on a collision course — there is an overall phenomenon of redshift happening as the universe gets bigger.

Sorry someone flagged this

8 0
2 years ago
Why do you think people like Ben Saunders explore extreme environments? Do you think you’d like to explore an extreme environmen
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One major reason for exploring extreme environments is to find new resources. An example of a resource is the search for a new antibiotic. Extreme environments have rare species endemic to the regions which can offer different insights from the normative environment we are used to.

No, I would not. This is because the risk of death is higher in an extreme environment. Example of these risks are deadly diseases or harsh climate. The body may be unable to adjust to the extreme environment hence may be unable to restore homoeostasis;  such as in restoring body heat in extremely cold environments hence leading to hypothermia.  

7 0
2 years ago
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