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Stolb23 [73]
3 years ago
15

Which is an example of a vestigial structure?

Biology
1 answer:
Karolina [17]3 years ago
7 0
I think it’s a forelimb of a whale
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What would happen to an egg that had a nonfunctional chorion?
Firlakuza [10]

Answer:

a. The embryo would suffocate or dehydrate.

Explanation:

Chorion is one of the four extraembryonic membranes that cover the embryo inside the egg. Chorion develops into the part of placenta-derived from the fetus.

Trophoblast develops into chorion during pre-embryonic development. Once formed, the chorion develops villi that are required for the exchange of material, specifically the respiratory gases, between the mother and fetus.

If an egg had nonfunctional chorion, the developing embryo will not get the supply of gases. In the absence of gas exchange between mother and embryo, the embryo will die of suffocation.

Chorion is also involved in the development of the placenta which in turn is the organ of the exchange of nutrients and gases and removal of toxic material.

Nonfunctional chorion would not support the placenta formation and the embryo will not get the supply of nutrients and water.

8 0
3 years ago
Reproduction 1. differentiate asexual and sexual reproduction and give an example of each. reproduction 1. differentiate asexual
Mariana [72]
Asexual reproduction involves only one parent and the offspring is identical to the parent. An example of an organism that reproduces asexually is Archaea or bacteria. Sexual reproduction involves two parents and the offspring's genes are equally contributed by each parent. An example of organisms that reproduce sexually are some land mammals. The chromosomes of a parent and offspring in asexual reproduction are identical and there is no difference in the chromosomes. 
7 0
3 years ago
How do herbivores move energy through an ecosystem?
NNADVOKAT [17]

Answer:The producers, who manufacture their own food through photosynthesis or chemo synthesis, are at the bottom of the pyramid. The second level is made up of herbivores, or principal consumers. In the following portions of the pyramid, secondary and tertiary consumers, omnivores and carnivores, are found.

Explanation:

8 0
2 years ago
As herds of cattle graze (eat grass in a field) they cause ground movements that bring insects to the surface. Birds use this op
statuscvo [17]
The symbiotic relationship would be commensalism. It’s when one organism benefits and the other organism neither benefits nor is harmed.
5 0
3 years ago
Nutritional value facts
PolarNik [594]
Nutritional value facts are usually at the side of the container which you bought, they give you the trans fat, calories, serving size, sodium, sugar, cholesterol, carbohydrates (carbs), protein, and the type of vitamins found.
 
                                              --hope this helps :)--
5 0
4 years ago
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