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soldier1979 [14.2K]
3 years ago
6

Which tool did maurice watkins use when studyng DNA

Biology
1 answer:
adoni [48]3 years ago
5 0

X-ray crystallography

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In the human retina: a) cone cells can detect color, but rod cells cannot. b) cone cells are more sensitive than rod cells to li
sergeinik [125]

Answer:

option A

Explanation:

Cones provide colour vision while rods cells do not produce colour vision. Rods provide the vision in the dull light (darkness or night), whereas cones are known to give the vision during the day or bright light; Rod cells are more sensitive to light than cone cells and both do have visual pigments with the rod cells possessing rhodopsin and the cone cells having photo-opsins.

6 0
3 years ago
The smallest contractile unit within skeletal muscle would correspond to the distance between which two points in the figure?
Tpy6a [65]

The distance between 1 and 7 spans a sarcomere correspond the structure at B is covered by the perimysium.

<h3>What is the smallest contractile unit within skeletal muscle?</h3>

A sarcomere comprises the segment between two consecutive Z lines and is the contractile unit of the muscle fiber, as it is the smallest portion of the muscle fiber capable of contraction and distension.

In this case, the distance between points 1 and 7 has the smallest structure of a skeletal muscle and corresponds to figure B.

See more about sarcomere at brainly.com/question/14005497

#SPJ12

5 0
2 years ago
A female patient who is diabetic sustained an ST-elevation myocardial infarction (STEMI). The nurse provides discharge teaching.
Aneli [31]

Answer:

The options

A) "Medications are needed to prevent heart failure."

B) "I will take aspirin, atenolol, and captopril indefinitely."

C) "My blood pressure should be less than 130/80 mm Hg."

D) "Daily estrogen will prevent another heart attack."

The CORRECT ANSWER IS D)

D) "Daily estrogen will prevent another heart attack."

Explanation:

A reduction in the natural hormone estrogen levels could be a causative factor in heart disease increase within post-menopausal women. Estrogen is thought to show a positive impact on the inner layer of artery wall, functioning in such a way to keep blood vessels elastic.

In spite of the advantages of estrogen, the American Heart Association speaks against employing postmenopausal hormone therapy to decrease the likelihood of coronary heart disease or stroke as some research works have revealed that it vividly do not decrase the risk of heart attack but increases the likelihood of blood clots and stroke.

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Determine if the following statement is true or false. If true, choose TRUE. If false, choose the rewording that is true.
Aleks [24]

Answer: TRUE

Explanation:

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