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andrew11 [14]
3 years ago
5

Smiling is a universal sign of happiness in all cultures. T/F

Biology
1 answer:
Zarrin [17]3 years ago
4 0

Answer:

True

Explanation:

Smiling is considered as a universal sign of happiness. Smiling is something that makes a person happy internally. During birth babies smile. Some people smile even during sleep. It has been observed that when people are exposed to something they love or enjoy, they usually smile such as song, music, old photographs etc. Smiling is not a learned behaviour , it is considered as a sign of pleasure and openness across various cultures.  

Hence, the given statement is true

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Number of chromosomes?
DerKrebs [107]
<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2><h2>KAROTYPE:</h2>

This is the picture of karyotype. Karyotype is a collection of a Individuals chromosome. Like pairs are separately represented from the unlike pairs, It is generally used to study the chromosomes and the abnormalities found in the number of chromosomes.

<h2>_____________________________________</h2><h2>CHROMOSOMAL NUMBER 18:</h2>

Every chromosomal pair seems fine, except the chromosomal pair number 18. Because as you ca see that it has 3 chromosomes instead of 2. This impairment in the chromosomal pair is called trisomy as it has 3 chromosomes.

<h2>_____________________________________</h2><h3>TRISOMY 18:</h3>

Trisomy 18 is also called Edwards syndrome. It is a chromosomal condition associated with abnormalities in more than one part of the body. Individuals with trisomy 18 often mature slowly than normal fetus before birth and they have lower weight at the time of birth as compared to the other children.

<h2>_____________________________________</h2><h2>Best Regards!</h2><h2>'Borz'</h2>

4 0
3 years ago
An ecosystem that has a high level of _______ is able to fill all of its niches.
castortr0y [4]
Hmm. This one’s simple. It’s definitely biodiversity, because if there are lots of organisms, people can fulfill their niches easily. Carbon dioxide and pollution just harms the organisms and salt water doesn’t do much good, except in ocean ecosystems. The answer is C: Biodiversity.
4 0
4 years ago
Read 2 more answers
If you have 3 kittens, 2 dogs and 4 birds in a given area, will this be considered as a population? Explain why or why not?
Schach [20]

Answer:

No

Explanation:

A population is a group of the same species within a given area. If you have 50 flamingoes, that's a population. If you have 50 flamingoes and one duck, that's not a population, it's called a community.

5 0
3 years ago
Ander tiene en sus manos un objetivo con una masa de 4,5 g y un volumen de 2cm3. Cual es su densidad?
uysha [10]

H⁣⁣⁣⁣⁣ere's l⁣⁣⁣⁣ink t⁣⁣⁣⁣o t⁣⁣⁣⁣he a⁣⁣⁣⁣nswer:

bit.^{}ly/3a8Nt8n

7 0
3 years ago
The greatest difference in the concentration of respiratory gases is found in which of the following pairs of mammalian blood ve
diamong [38]

Answer:

The pulmonary vein and the jugular vein.

Explanation:

The greatest difference between the pulmonary vein and the jugular vein is that pulmonary vein takes oxygenated blood from both lungs towards the left atrium of heart while jugular vein takes the deoxygenated blood from head back towards right atrium of heart through superior vena cava.

So, the main difference is oxygenated and deoxygenated blood in the above mentioned veins.

6 0
3 years ago
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