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Anastaziya [24]
3 years ago
12

How oxygen, nutrients, and wastes are exchanged between maternal and fetal

Biology
1 answer:
11111nata11111 [884]3 years ago
6 0

Answer: The blood vessels in the umbilical cord, the fetus receives all the necessary nutrition, oxygen, and life support from the mother through the placenta.

Explanation:

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Urine culture and sensitivity is a laboratory test used to identify the cause of a urinary tract infection true or false
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True. This is because in the lab they can determine the bacteria that may be causing the UTI.
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3 years ago
How did stromatolites contribute oxygen to the early atmosphere?
Neko [114]

How did stromatolites contribute oxygen to the early atmosphere?

by weathering of rocks

through photolysis

through methane degradation

through photosynthesis

Answer:

by weathering of rocks

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8 0
2 years ago
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Which of the following is a single-gene trait in humans?
natima [27]
The correct answer would be A
8 0
3 years ago
"A technician is reading the plates from a sputum culture. On the sheep blood agar (SBA), she sees flat spreading colonies with
sleet_krkn [62]

Answer:

P. aeruginosa

Explanation:

<em>P. aeruginosa</em> is a gram-negative bacteria that belongs to the family Pseudomonadaceae.

From the given question the following points lead us to conclude that the colony that will be growing would be of P. aeruginosa :

1. Flat spreading colonies with a metallic sheen on SBA - <em>P. aeruginosa</em> is known to produce smooth colonies with flat edges.

2. Fluorescent green color in the media with clear colonies on cetrimide agar - <em>P. aeruginosa</em> is known to produce pyoverdin which is a fluorescent pigment under low iron conditions.

3. Medium clear colonies that have a "fruity or grape-like odor" on MacConkey Agar - <em>P. aeruginosa</em> has a sweet fruity odor which is its characteristic odor because of the production of trimethylamine.

Thus, from all these characteristics one can conclude that the organism in the culture is <em>P. aeruginosa. </em>

6 0
3 years ago
Maria wakes up in the morning and takes a shower, drinks a glass of water, washes her clothes in the laundry machine, and then g
Ivan

The correct option is this: MARIA'S WATER USE IS CONSUMPTIVE.

Water use can be consumptive or non consumptive. Consumptive water use refers to the process of using water in such a way that the water used can not be returned to the water resources system.

The water that Maria used to shower, the one she drank and the one she used to wash her laundry are waste water, which are not returned to the central water resources system, thus, Maria's water use is consumptive.

8 0
3 years ago
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