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notka56 [123]
3 years ago
13

Which is an example of a parasite and host relationship?

Biology
2 answers:
Ber [7]3 years ago
7 0

Answer:

Tape worm and a human

Explanation:

This is because a tape worm is a parasite that destroys and eats the nutrients in the human intestines to live while killing the human.

andreyandreev [35.5K]3 years ago
3 0
Answer: A, a tapeworm and a human
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In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over spher
dangina [55]

Answer:

Genotypic ratio = 16 WwDd: 0

Phenotypic ratio = 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit

Explanation:

This question involves two different genes coding for fruit color and fruit shape respectively. The allele for white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over sphere-shaped fruit (d).

According to this question, If a squash plant pure-breeding for white, disk shaped fruit (WWDD) is crossed with a plant pure breeding for yellow, sphere shaped fruit (wwdd), the following gametes will be produced by each GAMETE:

WWDD - WD, WD, WD, WD

wwdd - wd, wd, wd, wd

Using these gametes in a punnet square, all of the offsprings will have genotype WwDd, which is phenotypically white and disk shaped fruit.

The genotypic ratio is 4 WwDd: 0

The phenotypic ratio is 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit.

8 0
2 years ago
Dopamine is a neurotransmitter that when released in the brain tends to make a person feel happy. Certain drugs stop
valina [46]

Answer:

O happiness

Explanation:

According to this question, Dopamine is a neurotransmitter that makes a person feel happy when released in the brain. However, it is stated that certain drugs stop the synapses from removing neurotransmitters, like Dopamine.

Hence, when these drugs cause the amount of neurotransmitters in the synapses to be increased, this means that the response caused by those neurotransmitters will also be increased. For example, an increase in Dopamine will cause an increase in HAPPINESS.

7 0
3 years ago
Read 2 more answers
Which of the following is a food chain in the food Web, tree, deer, mountain lion, fox; grass, caterpillar, robin, hawk; grass,
Lunna [17]
Food chain is a sequence of living organisms that eat one another. The goal is energy and nutrition flow in the ecosystem from one organism to another.
From the given options, the following are food chain in the food:
 <span>grass -> grasshopper -> snake -> hawk
It is a linear pathway. The hawk eats snake, the snake eats the grasshopper and the grasshopper eats  grass.
</span>
4 0
3 years ago
Read 2 more answers
The faster a cheetah can run, the more likely it is to capture its prey. Cheetahs with longer legs are able to run faster than t
stealth61 [152]

Answer:

D

Explanation:

This is the more likely explanation, as there must be a limit to leg length in an animal that has to run very fast and strain their muscles and bones to the limit to do so.

As for the other options, there is no evidence to conclude that the genes that are involved in cheetahs leg length do not undergo mutation because the population exhibits a variety of leg lengths. Neither can we conclude that there are any isolated subgroups in the pupulation. Natural selection does act upon the traits involved in predation, as the question starts by saying that the faster a cheetah can run the more likely it is to capture its prey.

8 0
3 years ago
During pyruvate processing, two carbons from pyruvate combine with ____.
Oduvanchick [21]

<span>The correct answer is b: Coenzyme A.</span>

During the process of pyruvate oxidation, acetyl CoA molecule is produced. Pyruvate oxidation is the link between glycolysis and Krebs cycle and it converts pyruvate (three-carbon molecule) into acetyl-CoA ( two-carbon molecule attached to Coenzyme A). NADH is produced and one CO2 released. AcetylCoA is the substrate for the next stage of cellular respiration, citric acid cycle.

5 0
3 years ago
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