1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olya-2409 [2.1K]
3 years ago
6

A study conducted in 40 US clinical centers beginning in 1993. Enrolled were 10,739 postmenopausal women, aged 50-79 years, with

prior hysterectomy, including 23% of minority race/ethnicity.
Women were randomly assigned to receive either 0.625 mg/d of conjugated equine estrogen (CEE) or placebo.

What is the study design?
a) Cross-sectional
b) Cohort
c) Randomized clinical trial
d) Ecological
Biology
1 answer:
scZoUnD [109]3 years ago
4 0

Answer:c) Radomized clinical trials

Explanation:Randomied clinical trial is a study used in scientific experiments in which the participants are divided randomly into group that compare different treatments or interventions.

Here participants are chosen by chance to receive clinical interventions.

You might be interested in
Waters ____ makes it excellent solvent for salts like sodium chloride as well as other substances required by cells to carry out
valentinak56 [21]

The right answer is polarity.

In chemistry, polarity is a characteristic describing the distribution of negative and positive charges in a dipole. The polarity of a bond or a molecule is due to the difference in electronegativity between the chemical elements that compose it, the differences in charge that it induces, and to their distribution in space. The more the charges are distributed asymmetrically, the more a bond or molecule will be polar, and conversely, if the charges are distributed in a completely symmetrical manner, it will be apolar, that is to say non-polar.

Polarity and its consequences (van der Waals forces, hydrogen bonding) affect a number of physical characteristics (surface tension, melting point, boiling point, solubility) or chemical (reactivity).

Many very common molecules are polar, such as sucrose, a common form of sugar. The sugars, in general, have many oxygen-hydrogen bonds (hydroxyl group -OH) and are generally very polar. Water is another example of a polar molecule, which allows polar molecules to be generally soluble in water. Two polar substances are very soluble between them as well as between two apolar molecules thanks to Van der Waals interactions.

5 0
4 years ago
Read 2 more answers
The sum of the generic traits in this population is called
sergeinik [125]
Gene pool Is the sum of the genetic traits
6 0
3 years ago
Read 2 more answers
During transcription, enzymes bind to a molecule of DNA. Then, the enzymes unwind and separate the DNA's double helical strands.
krok68 [10]
Complementary nucleotides pair with one of the DNA strands to form an RNA molecule
8 0
4 years ago
Which of the following statements regarding genetic mutations is true?
aliina [53]

Answer:

The last two points are true

Explanation:

Mutations are harmful and beneficial but can also be neutral

Mutations do cause a variation of given poulation

3 0
3 years ago
Suppose you live in the mountains and collect surface water for your drinking resource. If the water looks clear, should you use
jeyben [28]

Answer:

The answer is A ( No, the water looks clear but it may contain harmful bacteria or high levels of harmful chemicals in the water.)

4 0
3 years ago
Other questions:
  • According to the theory of the supercontinent cycle, what will probably occur in the future?
    5·2 answers
  • An abiotic factor affecting the behavior and survival of such organisms as robins and violets is the
    6·1 answer
  • During transcription of protein-coding genes, both strands are very often used as template.
    7·1 answer
  • Both the sympathetic and parasympathetic divisions can be found in the __________ nervous system. A. central B. autonomic C. som
    5·2 answers
  • Help me please guys!!
    15·2 answers
  • Find the total number of each item requested below for the compound shown. 2H2CO3
    15·2 answers
  • A cell has 6 chromosomes. How many chromosomes will each daughter cell have if it undergoes mitosis
    5·1 answer
  • Suppose a mutation occurs within the cells of a Great Blue Heron. The Mutation could be.
    10·1 answer
  • Arrange the following statements about DNA replication in the correct order.
    5·2 answers
  • How the seedling continues to growth without cotyledon<br>​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!