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aliya0001 [1]
4 years ago
14

A blastocyst is associated with which stage of the reproductive cycle?

Biology
2 answers:
mel-nik [20]4 years ago
8 0
B. The first trimester of pregnancy
kolezko [41]4 years ago
8 0

Answer: The correct answer is A) Puberty in the offspring.

Blastocyst is a structure of cells that is formed after five days of fertilization. It possesses an outer layer of cells called trophoblast ( that forms major part or the placenta to provide nutrition to the developing embryo) and an inner cell mass ( that forms the whole embryo).

It is implanted in the uterus after the zona pellucida ( layer outside blastocyst) is broken down.

Pregnancy is divided into three trimester with three months in each trimester.

As blastocyst is the structure that is implanted in the uterus, therefore it is associated with the first trimester of pregnancy.                

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5.
Nitella [24]

Answer:

your answer is A. the rattlesnake population would decrease

4 0
3 years ago
Which statement about development in the embryonic stage of development is true?
creativ13 [48]

Your baby goes through a period of rapid change after conception known as the embryonic stage. The infant is referred to as an embryo at this point. The eyes form between days 21 and 28.

<h3>What is meant by the embryonic stage?</h3>

Your baby goes through a period of rapid change after conception known as the embryonic stage. From the fifth to the tenth week of pregnancy, this phase lasts. The infant is referred to as an embryo at this point. The embryonic stage is when a lot of changes take place.

An embryo exists the first stage of a multicellular organism's development. Embryonic development is the phase of the life cycle that starts right after the male sperm cell fertilizes the female egg cell in sexually reproducing organisms.

The embryo is about the size of a pea at four weeks old. The head is defined by crudely drawn eyes and ears, and tiny bumps serve as the body's arms and legs. The embryo also has a developing nervous system and its head is growing.

Therefore, the correct answer is option d. The eyes form between days 21 and 28.

To learn more about the embryonic stage refer to:

brainly.com/question/27873806

#SPJ4

4 0
2 years ago
The patient is a 63-year-old gentleman diagnosed with rectal cancer, who had a resection of the cancer performed. he now present
Tpy6a [65]

The correct answer is CPT codes 36561, 77001-26.

The administration of a tunneled Port-A-Cath through the subclavian vein was done on a 63-year-old. It is essential to note that it is tunneled. The procedure was done under fluorescence guidance for placement of a central venous access instrument.  

The Port-A-Cath method is witnessed in the CPT index by looking for Central Venous Catheter Insertion/Placement/Tunneled/Centered with Port directs one to 36560, 36561, 36566. The code 36561 is the correct code. The guidelines for central venous access methods directs one to use 77001 for fluoroscopic guidance.  

This can be witnessed in the CPT index by looking for Venous/Fluoroscopy Access Device or Venous Access Device/Fluoroscopic guidance instructing one to add-on code 77001.  


6 0
3 years ago
Why will the antibody produced for measles not be effective in other diseases
Lorico [155]

Answer:

People can be immunised against a pathogen through vaccination. Different vaccines are needed for different pathogens. For example, the MMR vaccine is used to protect children against measles, mumps and rubella (German measles).

7 0
3 years ago
Determine the atomic number of an atom if given the number of protons
Sladkaya [172]
The number of protons is equal to atomic number.
7 0
3 years ago
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