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Kruka [31]
2 years ago
7

4. Two experiments were mentioned in the talk: one that tested food preference in caterpillars, and another that tested for egg-

laying preferences in adult butterflies. What were the results of those two experiments, and what did those results imply​
Biology
1 answer:
IceJOKER [234]2 years ago
5 0

Answer:

Jaap de Roode is a biologist that featured on TEDTalks so the question links to him.

When they have an upset stomach, both dogs and cats will often eat grass to induce vomiting (self medication).

The risk in using man-made medicine when treating certain pathogens includes a tendency for the pathogens to develop into a resistant strain.

Just like humans, the monarch butterfly sometimes gets sick thanks to a nasty parasite. Monarchs survives with milkweed; their caterpillars eat milkweed plants only (Asclepias spp.), and monarch butterflies need milkweed to lay their eggs.

But biologist Jaap de Roode noticed something interesting about the butterflies he was studying - infected female butterflies would choose to lay their eggs on a specific kind of plant that helped their offspring avoid getting sick. How do they know to choose this plant? Think of it as "the other butterfly effect"- which could teach us to find new medicines for the treatment of human disease.

Explanation:

This leads scientists to think of improving Medicine so as to raise offsprings which are resistant to the parasites and diseases that killed their parents.

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Which of the following statements is true?
kogti [31]

The correct answer is option D, that is since genetic drift is random, it does not always favor the better or healthier organisms.  

A mechanism of evolution in which the frequencies of alleles of a population change with generations because of sampling error is known as genetic drift. It takes place in all the populations of non-infinite size, however, its influences are strongest in small populations.  


5 0
3 years ago
Read 2 more answers
Why aren't lipids considered polymers?
OverLord2011 [107]
A polymer is made up of monomers. A monomer is a unit that occurs in repetitive chains. Lipids do not occur in repetitive chains, so they are not classified as monomers. Since they're not monomers, they can't make up polymers, either.
6 0
3 years ago
Match each term to its scientific definition.
REY [17]

1.) everything that can be observed or explained scientifically. - natural phenomenon

2.) a well-supported explanation of all the evidence related to a natural phenomenon. - Theory

3.) the procedure of scientific inquiry used to investigate natural phenomena. -scientific method

4 0
3 years ago
What is the mass number of an isotope that has 1 proton and 2 neutrons
Lunna [17]

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Hope this helps.

8 0
3 years ago
Glucose-6-phosphate dehydrogenase deficiency (G6PD) is inherited as an X-linked recessive gene 43) in humans. A woman whose fath
LiRa [457]

Answer:

50% or 1/2. The result remains unchanged if the husband were to have G6PD.

Explanation:

For X-linked recessive inheritance, a female (XX) needs two recessive alleles to be affected while a male needs only one (XY). It is hypothetically assumed that the Y chromosome does not carry any trait.

Assuming the allele for the disease is represented by g, a woman whose father suffered from G6PD is a carrier for the disease with genotype X^GX^g. A normal man will have the genotype X^GY. When the 2 marries:

X^GX^g   x   X^GY = X^GX^G (normal female), X^GY (normal male), X^GX^g (carrier female), X^gY (affected male)It thus means that 50% or 1/2 of their sons will be expected to have G6PD.

Now, assuming the husband has G6PD, the mating becomes:

X^GX^g   x   X^gY = X^GX^g (carrier female), X^GY (normal male),  X^gX^g (affected female), X^gY (affected male)50% or 1/2 of their sons is still expected to have G6PD. The ratio remains unchanged.

3 0
3 years ago
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