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Lynna [10]
3 years ago
9

What is the starch indicator, and how does it change?

Biology
1 answer:
kow [346]3 years ago
8 0

Answer:

<h3><em>Starch is a indicator in the iodometric titration and it turns deep dark blue when iodine is present in a solution. The starch under warming condition forms amylose and amylo pectins which combine with iodine to produce dark blue color.In absence of iodide ion starch indicator is colorless.</em></h3>

<em />

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Which condition would most likely lead to an increase in the frequency of an altruistic behavior in a population?.
podryga [215]

The beneficiaries of the behavior are related to the individual performing it. Groups that differ in terms of altruistic and selfish genotypes have differential reproduction or survival.

<h3>What is Altruistic behavior ?</h3><h3 />

Altruism is the practise of acting in a way that benefits another person at the expense of oneself. Giving someone else your lunch, for instance, is altruistic since it satisfies their need while also leaving you hungry.

Nepotistic altruism, reciprocal altruism (or mutualism), group-based altruism, and moral altruism are the four categories of altruism.

  • Along with cortical areas like the medial prefrontal cortex and the temporoparietal junction, the desire to act altruistically is linked to higher activity in limbic areas like the nucleus accumbens and anterior cingulate cortex.

Learn more about Altruistic behavior here:

brainly.com/question/11287458

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6 0
1 year ago
How do you think molecules of food rearrange when they react with oxygen in the cells of your body?​
SVEN [57.7K]

Answer:

In cellular respiration, complex molecules containing carbon react with oxygen to produce carbon dioxide and other materials. Within individual organisms, food moves through a series of chemical reactions in which it is broken down and rearranged to form new molecules to support growth or to release energy.

Explanation:

3 0
3 years ago
In a study published in the journal Nature, scientists studied eight ponds in Florida: four that were populated by a species of
Reika [66]

Answer:

Explanation:

The rate of pollination in the field (near the pond with no fish) will decrease exponentially. Because, as the fish population is removed from that ecosystem, the population of dragonflies and larva increases without check because, fish feeds on the dragonflies larva and kept there population in check. Due to this, the population of bees and other pollinators population decline becuase, they are major food source of dragonflies.

Honeybees are the keystone species because it's absence will lead to major changes in the ecosystem.

7 0
3 years ago
A cell biologist carefully measured the quantity of DNA in grasshopper cells growing in cell culture. Cells examined during the
Tamiku [17]

Answer:

100 units

Explanation:

The mother cell contains 200 units of DNA. During cell division, this amount is split between the daughter cells produced and each daughter cell will receive half of the amount of DNA present in the parent cell.

Since mitotic cell division process gives rise to 2 daughter cells, each daughter cell will receive 100 units of DNA.

5 0
3 years ago
Since mature red blood cells do not contain a nucleus, more room is available for
geniusboy [140]

Answer:

The correct answer is : oxygen

Explanation:

  • Oxygen is carried in the blood by two means:
  1. About 2% of the oxygen is carried in the dissolved form in blood plasma and in the water present in the red blood cells (RBCs).
  2. Rest 98% of the oxygen is carried in bound form with the haemoglobin as oxy-haemoglobin inside the RBCs.
  • RBCs lack nucleus. This place is occupied by hemoglobin molecules that  binds to oxygen and form oxy-hemoglobin.
  • This increases the capacity of each RBC so that it can carry more oxygen to all the parts in the body.
4 0
3 years ago
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