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lara [203]
3 years ago
9

How are vestigial structures an example of evidence of evolution

Biology
1 answer:
Tcecarenko [31]3 years ago
7 0
I believe vestigial structures are evidence of evolution because organisms inherit anatomy from their ancestors. 

Hope that helps.
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Please help me I’m begging you
Nimfa-mama [501]

Answer

Thermoregulation

Blood clotting

Regulating blood sugar

Explanation:

Negative feedback loop reduces excessive function..

Cooling the body when it's hot.

Reducing blood sugar when it's too much.

Clotting blood to stop excessive bleeding.

Contractions during childbirth is a positive feedback.

3 0
3 years ago
Achondroplasia is an autosomal dominant genetic disorder in humans. If a man with Achondroplasia ( heterozygous) and a normal wo
tresset_1 [31]

Answer and Explanation:

Achondroplasia is a form of dwarfism that affects the formation of cartilage; early in development, most of the skeleton is comprised of cartilage. Cartilage is a type of flexible, tough tissue; in achondroplasia ossification (conversion of cartilage to bone) is affected. Symptoms include an enlarged head, shorter upper and lower limbs, and limited motion at the elbow.

Punnett squares are illustrations that display the product of hybrid trait crosses by genetic breeding.

For this cross...

Assuming Achondroplasia= dominant

Parent generation or P generation:

gametes: An → Achondroplasia dominant (A), No Achondroplasia recessive (n)

Heterozygousity describes the allelic makeup; these traits comprise two varying forms of a  gene. However, homozygous traits comprise identical forms of the gene.

Male: An  →  with Achondroplasia

Female: nn → without Achondroplasia

genotypes and phenotypes for parent and offspring...

Assuming heterozygousity of the male , for the cross

P generation:                         An × nn

                          Achondroplasia   × No Achondroplasia

F1 generation:

genotype:                      An × nn       ...(from punnet square)

phenotype:          2 with Achondroplasia ; 2 without

∴ 50% are genotypically heterozygous while 50% is homozygous , 2 with Achondroplasia ; 2 without

8 0
3 years ago
How does the support structure of echinoderms differ from that of arthropods?
dimaraw [331]

Answer:

Arthropods have a tough, non-living outer shell called exoskeleton, which protect their soft bodies while echinoderms have living endoskeletons, which develops within the deeper skin or body tissues and act as their protective covering.Explanation:

5 0
3 years ago
Using the theory of natural selection, what is antibiotic resistance
ddd [48]

Answer:

Antibiotic resistance is when pathogens such as bacteria or fungi develop a resistance to antibiotics. This happens when some pathogens die, and others survive. The small number of pathogens that had a resistance to the antibiotic will reproduce more offspring that are also resistant to, and those offspring will reproduce even more offspring and so on. Eventually most pathogens will be resistant to the antibiotic, so antibiotics won't work.

4 0
3 years ago
Which of the following processes is a form of cell division?
Katen [24]

Answer:

both options 4 and 3 is the answer..

5 0
3 years ago
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