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Citrus2011 [14]
3 years ago
12

Explain why the elbow joint of a cow and the elbow joint of a human have similar, but not identical structure. Think about the a

ctions each organism completes with this limb.
Biology
2 answers:
a_sh-v [17]3 years ago
5 0

The elbow joint of the cow and the elbow joint of the human are a pair of homologous organs. Homologous organs can be defined as the traits that are inherited by two different organisms from a common ancestor. The structure of these organs are similar in both organisms but their function is different.

The connecting bones of the elbow joint in the humans and the cows are the same, but the radius and ulna of the cow are fused together. In cows, the elbow joint helps them to walk while in humans, the elbow joint helps to lift and carry.

MrRissso [65]3 years ago
3 0
Our elbow bends all the time, we bend it when we pick up things, when we eat, when we do mostly everything. Cows on the other hand dont pick up food with there feet, they use there mouths, and they probably only bend when they are walking.
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3 years ago
What are the three terms used to locate the body parts of a frog?
zaharov [31]

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Explanation:

the heart pumps blood throughout the body, and the lungs aid in breathing. the body parts that are found on frog are the heart, the liver, and the stomach, etc.

8 0
3 years ago
Contrast the genetic content and the origin of sister versus nonsister chromatids during their earliest appearance in prophase I
Bogdan [553]

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<u>Sister chromatids are identical  forms of chromatids  of a chromosomes. They are mostly  formed by semi-conservative replication of DNA molecule of a single  chromosome.Thus they  are  like  </u><u>'photocopies' </u><u> of  original parent  chromosomes; joined together at the Centromere</u>.

They are exactly similar in all ramification; with the same gene and allele compositions..

<u>However; slight differences  arise between the two identical sisters due to  </u><u>mutation</u><u> from</u><u> errors </u><u>at replication;and also in  the  length of telomere repeats.</u>

Non-sister chromatids are dissimilar forms of  chromatids of a chromosomes formed  when each half of  a chromosome  at fertilisation from separate   haploid sex-cells, of each parent. fused.They contain different genetic composition;because  they are not on the same homologous chromosomes.Therefore crossing -over ensure variation.

<u>However, they are genetically  similar in composition; if they  are contained in homologous chromosomes</u>. This is because Synapsis of bivalent of these chromosomes allow genetic material to be shared by  chromosomal crossing-over between the non-sister chromatids  on the chromosomes ; therefore identical genetic characteristics are shared .

Explanation:

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3 years ago
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jek_recluse [69]

<u>Biocultural perspectives</u> emphasizes how cultural forces constantly mold human biology.

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Biocultural perspectives or phenomena creates bio-social anthropological values and principles by correlating both biological and sociocultural values through a holistic approach and molds the field of human biology as a whole.  

Biocultural perspectives details about the role of biological and cultural factors in the evolution of mankind.  

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