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Nataly [62]
2 years ago
7

Malthus studied limited resources and the impact of limited resources on human populations. How did

Biology
2 answers:
Zina [86]2 years ago
5 0
I don’t know why they make everyone type more than 20 characters but B sounds like the most reasonable answer.
slava [35]2 years ago
5 0

Answer:

The answer is D.

Explanation:

Charles Darwin was a biologist that took a trip in The Beagle to different parts of the world in order to study evolution. In The Galapagos, he found the same species of birds but with different adaptations according to the island they lived in. Based on his observations of the birds, Darwin realized that <u>limited resources in an environment forces more genetic changes in individuals, allowing the species to evolve more quickly</u>. Due to this, option D is correct.

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Membrane lipids in tissue samples obtained from different parts of the leg of a reindeer have different fatty acid compositions.
AnnZ [28]

Answer:

The presence of a larger proportion of unsaturated fatty acids in membranes imparts them fluidity at lower temperatures as required to maintain their normal functioning.

Explanation:

The proportion of unsaturated and saturated fatty acids in membranes regulates their fluidity. At lower temperatures, membranes become more rigid. To maintain their normal fluidity, the proportion of the unsaturated fatty acids in membranes is increased. The unsaturated fatty acids have double bonds in their hydrocarbon tails which in turn do not allow their tight packing and impart fluidity to the membrane core.

At higher temperatures, membranes become more fluid and therefore, the proportion of the unsaturated fatty acids is reduced. The tissues of reindeer at the body's extremities such as those near hooves are exposed to surroundings and thereby, lose heat and have lower temperatures. To maintain the fluidity of membranes, the cells of these tissues incorporate more of the unsaturated fatty acids in their membranes as compared to the tissues in the upper legs where the body temperature is relatively higher.

5 0
2 years ago
In class switching in the secondary antibody response, the most common antibody switch is from
Svetradugi [14.3K]
I believe that the most common antibody switch is from IgM to IgG.
Class switching occurs by a mechanism called the class switch recombination binding. It is a biological mechanism that allows the class of antibody produced by an activated B cell to change during a  process known as isotype or class switching. The mechanism changes a B cell's production of antibodies from one form  to another, such as from the isotype IgM to the isotype IgG.

4 0
2 years ago
"Warehouse," stores water and food materials. Plant cells have a large one,
Alexandra [31]
Vacuole is your answer
4 0
3 years ago
What is the polymer for a lipid?
serious [3.7K]
It will be a triglyceride. Triglycerides are made from one glycerol with 3 fatty acid tails
6 0
3 years ago
Individuals with glucose-6-phosphate dehydrogenase deficiency have increased resistance to malaria because the parasite does not
Alexus [3.1K]

Individuals with glucose-6-phosphate dehydrogenase deficiency have increased resistance to malaria because the parasite does not survive well in cells with oxidative stress.

<h3>What is the link between G6P deficiency and malaria?</h3>
  • Glucose-6-phosphate dehydrogenase (G6PD) deficiency is an X-linked recessive disorder.
  • G6PD protects cells from oxidative damage especially the RBCs whose main function is to carry oxygen.
  • Mutation in the gene results in G6PD deficiency leading to oxidative stress which can lead to anemia (iron deficiency) as there is breakdown of RBCs.
  • However, G6PD deficiency is quite common in parts of Africa, Middle East, and South Asia, which are the regions of high malaria endemism.
  • This is due to natural selection in which G6PD deficiency is not eliminated from the population as it can protect people from malaria infection.
  • Malaria parasite <em>Plasmodium</em> species does not survive well in cells with oxidative stress.

Learn about malaria here:

brainly.com/question/17033567

#SPJ4

7 0
1 year ago
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