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Papessa [141]
3 years ago
15

The field of vision of this microscope is brightly illuminated and used for most microscopic work

Biology
1 answer:
3241004551 [841]3 years ago
6 0
Number 1.......................
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Which of the following statements is generally true of aneuploidies in newborns? a. An aneuploidy resulting in the deletion of a
Novay_Z [31]

Answer:

d. Monosomy X is the only viable monosomy known to occur in humans.

Explanation:

Human have 22 pair of homologous chromosomoses and an extra pair of sex chromosomes. While in males  the sex  chromosomes  are X and  Y , females have two chromosomes X . Anyway, in normal conditions the total number of chromosomomes that humans have in their cells is 46 (23 pair of chromosomes).  

Aneuploidy is a biological condition where an individual have an abnormal number of chromosomes in their cells.  In humans for examples, this would be a human having more or less than 46 chromosomes.

The Turner syndrome also called  monosomy X is an aneuploidy  where  one of the X chromosomes is missing in a female.  Although under constant supervision, people with Turner syndrome have viable healthy lives. However this is the only monosomy that occur in humans that is compatible with life.  

4 0
3 years ago
Angiotensin-converting enzyme (ACE) inhibitors and other vasodilators are used in the early treatment of heart failure. They act
Iteru [2.4K]

Answer:

Option c. cause pooling of the blood and decreased venous return to the heart

Explanation:

The ACE inhibitors increases the diameter of the blood vessels (vasodilation) that improves the flow of blood. This reduces the work load on the heart. At the time of heart failure, a substance called angiotensin is released. This angiotensin formation is blocked by the ACE inhibitors. Angiotensin is involved in narrowing the blood vessels.

The ACE cause pooling of the blood and decreased venous return to the heart. The ACE inhibitors causes vasodilation that allows decrease in blood pressure. So, there is no increase in arterial pressure, aldosterone and loss of volume. Thus, option C is correct.

3 0
4 years ago
Is the space between the bottom of the objective lens and the surface of the slide.
Svetlanka [38]

WORKING DISTANCE is space between the bottom of objective the lens and the surface of the slide.

The distance between front edge of the objective and the lens and the specimen surface ("with the surface of the cover glass in case of the cover glass objective lens") when the specimen is also focused.

The working distance (W.D.) which is determined by the linear measurement of the objective and front lens to the focal plane. In the general, the objective of the  working distance decreases by the magnification and the numerical aperture of both increase. The working distance is the distance and from the front of the lens to be the focal plane

To know more about lens visit:

brainly.com/question/15969013

#SPJ4                

4 0
2 years ago
If an organism's body cells have 12 chromosomes, how many chromosomes will the sex cell have
Fynjy0 [20]
23 and  for the female and for the male there are 46 
3 0
3 years ago
In a normal body cell of a dogfish shark, there are 24 chromosomes. how many chromosomes are found in each of its gametes
vovikov84 [41]
The answer is:  "12 (twelve)" .
_____________________________________
 Note:  24 / 2  = 12 .
______________________________________
5 0
3 years ago
Read 2 more answers
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