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Jlenok [28]
3 years ago
5

Which organ loses about 5-10% of its weight by the time a person reaches 90 years of age? Lungs Brain Kidney Heart

Biology
2 answers:
jekas [21]3 years ago
5 0
The answer would be Lungs. Hope this helped :))
belka [17]3 years ago
4 0

The brain is the organ loses about 5-10% of its weight by the time a person reaches 90 years of age. The adult human brain is about 2% of the total body weight. The average human brain is 140 mm wide and 167 mm long.

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Many closely related species of ducks have different courtship dances that are performed to solidify a pair-bond. If you were to
damaskus [11]

Answer:

I would expect to see a new phenotype in which the new duck hybrid species would express a new mixed courtship dance with the behaviors of both parentals.  

Explanation:

The cross between both parentals, each from different species, might produce a new phenotype that exhibits both parental dances. The new dance might be considered a hybrid of the parental dances.

Genetically speaking, we can think that there is a gene codifying for the courtship behavior in one species and another gene expressing a different courtship behavior in the other species. This cross´ product would be a hybrid species that exhibits a part of both parentals´ behaviors.

5 0
3 years ago
Cells for sexual reproduction is it mitosis or meiosis
Lemur [1.5K]
Cells for sexual reproduction is meiosis
5 0
3 years ago
How can competitive and noncompetitive inhibition be distinguished in terms of KM?
notsponge [240]

Answer:

The correct answer is option c. "The apparent value of KM increases with a competitive inhibitor, while it remains unchanged with a noncompetitive inhibitor".

Explanation:

The KM value in an enzymatic reaction is defined as the substrate concentration at which the half of the enzyme molecules are binding with the substrate. A way to distinguish between a competitive and noncompetitive inhibition is that the apparent value of KM increases with a competitive inhibitor, while it remains unchanged with a noncompetitive inhibitor. A competitive inhibitor would make that a higher concentration of substrate is needed, while a noncompetitive inhibitor does not change KM since the inhibitor binds to a site of the enzyme different from the active site.

3 0
3 years ago
Captive breeding: a) has allowed for the reintroduction of many species to areas from which they had disappeared.b) does not req
Snezhnost [94]

Answer:

Option-D

Explanation:

Captive breeding or breeding in the captivity is the conservation technique employed by the government to conserve nature.

Captivity breeding is also known as the captive propagation of animals in which animals are kept either in their natural habitat (ex-situ conservation) or in artificial conditions like in zoos where condition similar to the habitat of animal are created.

The breeding programme aims at conserving the natural habitat of the animals to prevent the endangered species from extinction. The endangered species are at risk of extinction due to loss of fragmentation, pollution, predation and others.

Thus, Option-d is the correct answer.

4 0
3 years ago
Which statement best explains a difference between the interaction of light with clear glass and the interaction of light with s
polet [3.4K]
Most of the light passes through glass but none of the light passes through metal.
3 0
3 years ago
Read 2 more answers
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