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yulyashka [42]
3 years ago
8

Not too sure about this question ↑ ​

Biology
2 answers:
Mashutka [201]3 years ago
7 0

Answer:

the umbilical cord is connected to both the mother and the unborn child and so tranfers nutrients from the mothers blood to that of the baby's blood

Katarina [22]3 years ago
3 0

Answer:

Due to ethical reasons. Obtaining stem cells from the embryoes would require fertilisation of the embryo in order to obtain the embryonic stem cells and the embryo may not develop into a fetus upon extraction of stem cells (I may be wrong on this). On the other hand, umbilical cord stem cells, although are more mature stem cells, could be obtained after childbirth and does not raise the same ethical concerns as that of the embryo

Explanation:

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Which best describes how blood pressure is measured and why it is important?
Slav-nsk [51]

Answer:

A) Blood pressure measures pressure on the arteries and can be an indicator of an unhealthy cardiovascular system.

Explanation:

Blood pressure is the amount of pressure that the blood puts on the arteries as it flows through them.

6 0
3 years ago
The immunoglobulin light chain does not have a D segment. In humans, there are two different possible light chain proteins, term
wlad13 [49]

Answer:

295  

Explanation:

Antibodies (also known as immunoglobulins) are immune system-related proteins that circulate in the bloodstream in order to recognize pathogenic harmful substances (antigens) and neutralize them. An antibody consists of two immunoglobulin heavy chains and two immunoglobulin light chains. There are two types of immunoglobulin light chains: 1-the kappa (κ) light chain, which is encoded by the immunoglobulin κ locus; and 2-the lambda (λ) light chain, which is encoded by the immunoglobulin λ locus. The immunoglobulin light chain is a multidomain protein composed of two domains: 1- the N-terminal variable (V) domain and 2-the C-terminal constant (C) domain. V(D)J recombination is a type of somatic rearrangement process by which T and B cells can assemble different gene segments, which are referred to as variable (V), diversity (D) and joining (J) gene segments. In the question above the number of possible genomic recombination events between immunoglobulin gene segments can be calculated as >> (5 x 35) + (4 x 30) = 295.

4 0
2 years ago
A researcher is attempting to determine the prevalence of asymptomatic human infection with West Nile virus in New York. Which o
Monica [59]

Answer:

West Nile virus (WNV) causes epidemics of febrile illness, meningitis, encephalitis, and flaccid paralysis. Since it was first detected in New York City in 1999, and through 2004, 16,000 WNV disease cases have been reported in the United States. Over the past 5 years, research on WNV disease has expanded rapidly. This review highlights new information regarding the virology, clinical manifestations, and pathology of WNV disease, which will provide a new platform for further research into diagnosis, treatment, and possible prevention of WNV through vaccination.

Explanation:

7 0
3 years ago
Read 2 more answers
What are the function of an enzymes of the animals body​
Mekhanik [1.2K]
In animals, an important function of enzymes is to help digest food. Digestive enzymes speed up reactions that break down large molecules of carbohydrates, proteins, and fats into smaller molecules the body can use... hope this helps
7 0
2 years ago
Which statement is true regarding monocytes
vodka [1.7K]

Answer: <u>Option C, they digest pathogens</u>

Explanation: Monocytes are involved in the process of digesting pathogens and infected cells, termed as phagocytosis.

Monocytes don't produce antibodies, only B cells can produce antibodies. So, option A and D are incorrect. Also they appear colorless when observed under the microscope. They don't appear granular, so option B is also incorrect.

7 0
3 years ago
Read 2 more answers
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