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salantis [7]
3 years ago
7

Name the four most important ligaments of the knee. What condition is characterized by an irritation and softening of the cartil

age on the posterior aspect of the patella?
Biology
1 answer:
Alex787 [66]3 years ago
3 0

Answer:

1. Medial collateral ligament, lateral collateral ligament, anterior cruciate ligament and posterior cruciate ligaments.      

2. Chondromalacia patellae

Explanation:

The knee is a ginglymus that connects the thigh to the leg. It is the largest joint in the human body, that plays a vital role in the horizantal and the vertical movement of the body.

There are <u>four ligaments</u> of knee joint, that joins the femur to the tibia and also provides stability by limiting movement. They are: <u>medial collateral ligament, lateral collateral ligament, anterior cruciate ligament and posterior cruciate ligaments.</u>

Chondromalacia patellae is a medical condition that includes inflammation of the cartilage on the posterior aspect of the patella, which leads to softening of the cartilage.

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Answer:

The gametophyte is green and nutritionally independent in mosses, liverworts, and fern.

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The gametophyte is the sexual stage of growth in plants and algae.

During this stage, there is production of reproductive organs which produce sex cells.

During this stage, the gametophyte is independent since it relies fully on itself for food production.

The presence of chlorophyll enables this independence.

The gametophyte produces its own food through photosynthesis.

6 0
3 years ago
Lead poisoning can cause extensive organ/system damage, including: a. Respiratory failure, circulatory system collapse, and skin
adell [148]

Answer:

The correct answer will be option-C

Explanation:

Lead is a metal found in the Earth's crust which through human practices like using it in paints and other products cause lead poisoning in humans due to accumulation of lead in the body.

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Thus, Option-C is the correct answer.

4 0
3 years ago
Why human with heterozygous genotype will have the dominant phenotype?
AnnZ [28]

A human with heterozygous genotype can have a dominant phenotype if one of the alleles complete mask the effects of the other.

  • Heterozygous genotype involves two different alleles, unlike homzygous genotypes in which the alleles are the same.
  • When the two alleles of an heterozygous genotype exert equal effects on one another, they are said to be codominant.
  • When one of the alleles of an heterozygous genotype incompletely exert its effects on the other allele, it is said to be incomplete dominance.
  • When one of the alleles complete dominates and masks the effects of the other allele, it is said to be dominant.

Hence, a dominant allele will always produce a dominant phenotype even if the genotype of the organism is heterozygous.

More on genotypes can be found here: brainly.com/question/14398652

5 0
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