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zavuch27 [327]
3 years ago
11

The mechanism of action of oral combined contraceptives that prevents pregnancy is:

Biology
1 answer:
nadezda [96]3 years ago
3 0
They inhibit lh and fsh hormone this stop the maturation of follicles henve they are not released and sperm has nothing to fuse so fertilisation doesn't occur
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What is a analogous structure
Eva8 [605]

Answer:

In evolutionary biology, analogous structures are defined as biological structures having similar or corresponding functions but not from the same evolutionary origin. In other words, species use these biological structures for the same purpose and yet these species are from unrelated evolutionary lines.

Explanation:

5 0
3 years ago
Which domain would hagfishes, primitive vertebrates, be classified in?
maria [59]
A because of the way the animal is configured
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Archaea are often described as hybrid organisms having some features that are similar to bacteria and some that are similar to e
Svetach [21]

Answer:

Explanation:

Archae and bacteria are similar to each other in that

1. They are both prokaryotes meaning they do not have membrane bound nuclei and organelles.

2. Presence of flagella in both that helps them to move in their environment by propelling them. The flawless are threadlike structures used for movement

Archae and eukaryotes are similar in that

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Both some studies noted that archea are closely related to the bacteria than to eukarya

6 0
3 years ago
MRNA strand: TATACGA
Shtirlitz [24]

Answer:

The  mRNA strand for TATACGA is UTUTGCT.

Explanation:

The DNA bases are adenine (A), thymine (T), guanine (G), and cytosine (C). Each of these bases pairs with a complimentary one. Adenine pairs with thymine, and cytosine pairs with guanine.

During transcription, the DNA is transcribed into an mRNA strand. The mRNA has the same complementary bases of the DNA strand, with the difference that instead of having adenine base the complementary base of thymine, it has uracil (U). When we interpret the DNA strand TATACGA, the mRNA will be adenine (A) paired with the DNA's thymine (T), uracil (U) paired with the DNA's adenine (A). Then the same sequence repeats itself. After that, guanine (G) pairs with DNA's cytosine (C), cytosine (C)pairs with the DNA's guanine (G), and lastly, thymine (T) with the DNA's adenine (A).

7 0
3 years ago
Which organism is most likely not functioning as a keystone species in its ecosystem?
allsm [11]
The organisms that is most likely not functioning as a keystone species in its ecosystem is; the Zebra mussels-Compete with native species, reducing the biodiversity of the Great Lakes ecosystem. Keystone species are plants or animals that play unique and vital role in the way an ecosystem functions. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether. 
5 0
4 years ago
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