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aliya0001 [1]
1 year ago
12

Cool air is less dense than warm air. Question 7 options: True False

Biology
1 answer:
Luda [366]1 year ago
7 0
False. Think about how teachers have air conditioners on the top of the windows and how air balloons float up!! Therefore warm hair is lighter then cold air.
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No two people are genetically identical, except for identical twins. The main source of genetic variation among humans is
Musya8 [376]

Answer:

c. the reshuffling of alleles in sexual reproduction.

Explanation:

During gametogenesis, meiosis occurs in reproductive cells. As a result, haploid gametes are produced. During meiosis, a process called ‘crossing over’ occurs in the pachytene stage of prophase I of meiosis. During crossing the chromosome segments are exchanged between non-sister chromatids of homologous chromosomes. Exchange of chromosome segment creates a new combination of genes or genetic recombination and produces hybrids. Thus, genetic variation occurs in all sexually reproducing organisms due to crossing over.    

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During a marathon the runner will lose a lot of water in... what?
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8 0
3 years ago
Please help me ASAP!!!
Harlamova29_29 [7]

Why are the seminal vesicles important for human reproduction?

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The seminal vesicles (Latin: glandulae vesiculosae), vesicular glands, or seminal glands, are a pair of simple tubular glands posteroinferior to the urinary bladder of some male mammals. Seminal vesicles are located within the pelvis. They secrete fluid that partly composes the semen.

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I believe that the answer is:

A. 

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8 0
2 years ago
The natural spreading of particles through a liquid or gas is called ________.
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The natural spreading of particles through a liquid or gas is called diffusion
3 0
2 years ago
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To further study anti-nAChR antibody function, the researchers wanted to replicate the experiments described in the passage in o
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B/ Because the electrolyte rich baths were infused with in consistent amount of Ach.

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