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rjkz [21]
3 years ago
6

In living organisms, DNA consists of two complementary strands wound together in a specific structure called a ______.

Biology
2 answers:
OLga [1]3 years ago
7 0
The answer is double helix
Anit [1.1K]3 years ago
4 0
The structure you are referring to is called the Double Helix
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Which term best describes the interval between the birth of the newborn and the return of the reproductive organs to their norma
kodGreya [7K]

Answer:

B. Puerperium, or fourth trimester of pregnancy

Explanation:

  • Puerperium or the fourth trimester of pregnancy is also known as the postpartum period.
  • This period starts immediately after the mother gives birth to a child.
  • During this period the size of the uterus and other reproductive organs along with the hormone levels return to their normal state.
  • It is the phase where regression of all the anatomical and physiological changes that took place i in the reproductive organs of the females takes place.
  • This phase is divided int three periods -

1. Immediate puerperium, or the first 24 hours after parturition

2. Early puerperium, which extends until the first week postpartum;

3. Remote puerperium, which includes the period required for involution of the genital organs and return of menses, usually approximately 6 weeks.

  • This phase is highly critical for the mother as this requires rest and proper care as there are risks of bleeding. Therefore, the midwife or the nurse must take proper care of the mother.
8 0
3 years ago
Differentiate between cell mass and cell number
sergiy2304 [10]

Answer:

Measurement (Count) of Cell Numbers:

1. Breed Method:

A known volume of microbial cell suspension (0.01 ml) is spread uniformly over a glass slide covering a specific area (1 sq. cm). The smear is then fixed by heating, stained, examined under oil immersion lens, and the cells are counted.

Customarily, cells in a few microscopic fields are counted because it is not possible to scan the entire area of smear. The counting of total number of cells is determined by calculating the total number of microscopic fields per one square cm. area of the smear.

6 0
3 years ago
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According to the pedigree chart, which statement MUST be true?
Crank

Answer:

B

Explanation:

This is because the original male is not affected by the disease. In the second generation they have a female child who is a carrier of the disease because she passes it down to her son, but she is not affected. Seeing how all males that carried the disease were affected at some point the disease must lay dormant in female carriers but not males. This means the original father cannot be a carrier of the disease. Hope this helps!

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Yellowfin tuna, or Thunnus albacores, are large sport fish that are found in tropical and subtropical waters around the world. T
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3 years ago
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2. The Earth experiences different seasons due to the:
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The answer is to your question is A
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