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3 years ago

Which of the following landmarks is found on the posterior surface of the scapula?

Biology

1 answer:

WINSTONCH [101]3 years ago

6 0

Answer: The spine

Explanation:

In the study of animal anatomy,a landmark is a major point on the body that has biological significance. An anatomical landmark is a biologically-meaningful point in an organism.;these landmarks are used for the definition of corresponding anatomical points within species.

Posterior, describes a region that is at the back of the body.

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This diagram shows the menstrual cycle.

LiRa [457]

Answer:

According to the hormone diagram of the menstrual cycle, the woman is not pregnant due to the behavior of progesterone and estrogens, whose levels do not increase, in addition to the absence of human chorionic gonadotropin.

Explanation:

The graph shows the behavior of hormones during a woman's menstrual cycle in the absence of pregnancy.

During a woman's normal cycle, estrogen, luteinizing hormone (LH) and follicle stimulating hormone (FSH) tend to increase prior to ovulation, reach their peak values at ovulation, and then decline, as shown in the graph. Progesterone, on the other hand, increases after ovulation and decreases if the woman does not become pregnant.

In the case of a pregnant woman:

Estrogens continue to increase after ovulation, produced by the ovaries and placenta.
Progesterone also increases its levels, as it is a hormone produced by the ovaries and placenta.
Hormone human chorionic gonadotropin (HCG) appears and increases during pregnancy, due to the secretory activity of the placenta.

The diagram represents the normal cycle of a woman who is not pregnant.

4 0

2 years ago

kondor19780726 [428]

Plutchik suggested we have 8 primary emotions that combine to form secondary emotions. Putchik identified ten postulates on which his evolutionary theory of emotions is based. Plutchik's wheel of emotion illustrates the relationships between his primary emotions and other related emotions. The eight basic emotions are joy, trust, fear, surprise, sadness, anticipation, anger, and disgust.

4 0

2 years ago

By what mechanism does a diploid animal grow after fertilization?

IrinaK [193]

Mitosis
Definition of Mitosis: The process where a single cell divides resulting in generally two identical cells, each containing the same number of chromosomes and genetic content as that of the original cell.

7 0

3 years ago

Read 2 more answers

HELP PLZ Two forces are described below: Force 1: The upward force exerted by a chair on us when we sit on the chair Force 2: Th

Diano4ka-milaya [45]

I believe those are both non-contact forces bc it's not something physical

5 0

3 years ago

Read 2 more answers

The blood Group of Mother is O. The Blood Group of the Child is B. Man Exonerated If He to Blood Group?

aalyn [17]

Answer:

If the mother's blood type is O, and the child's blood type is B, a man would be exonerated from paternity if he has blood type A or O.

Explanation:

In the above case, if a mother has blood type O and her child has blood type B, a man can be exonerated from paternity only if his blood type is A or O, and responsible if he is type B or AB.

The blood type is defined by the presence of surface antigens in the red blood cell, called A and B. The presence of each antigen is determined by a gene present on the parental chromosomes.

Blood type A corresponds to the presence of gene A, and its genotypic expression can be A/A or A/O.
Type B blood, whose genotype is B/B or B/O, is due to the presence of a gene containing the B antigen.
AB blood —due to codominance— has one gene for A and another for B, with genotype A/B.
Blood type O, characterised by the absence of surface antigens, behaves like a recessive trait, which only manifests itself in the absence of surface antigens A and B. The genotype is O/O.

By making a hypothetical crossing between mother and man, one can observe why he can be exonerated.

Man with blood type O

♂ O|O

♀ O|O

Alleles O O

O O|O O|O

The only possibility, in this case, is to have children with type O blood. No chance of children B.

Male with blood type A

♂ A|O

♀ O|O

Alleles A O

O A|O O|O

In this case there is a 50% chance that the children will be blood type A and 50% chance that they will be O. No chance of children B.

In the case of a man A|A the result is 100% probability of children A|O, and no probability of children B.

So, a man with blood types A (any genotype) and O, can be exonerated from paternity, since it is impossible for him to have a child of blood type B, when the mother is of blood type O.

4 0

2 years ago