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kipiarov [429]
3 years ago
11

How many electrons fulfill each shell of the elemental structures

Biology
2 answers:
Agata [3.3K]3 years ago
7 0
It takes 8 electrons to fill a shell.
Mekhanik [1.2K]3 years ago
3 0
It takes 2 electrons to fill the first shell and 8 electrons to fill the further shells
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Select ALL the correct answers. Based on these images, what can you say about the tentacles of an octopus and the limbs of a liz
slamgirl [31]

Tentacles of an octopus as well limbs of a lizard are analogous structures.

Analogous structures or organs perform the same function in different organisms that bear no resemblance to each other anatomically. Analogous structures are formed as a result of convergent evolution, i.e. different structures evolving for the similar function and thus having similarity. Tentacles of an octopus as well as limbs of a lizard are used for the similar function, i.e. locomotion in this case.

On the other hand, homologous structures result from divergent evolution. Homologous organs contain a similar basic structure but perform distinct functions in different organisms.

To learn more about Homologous organs here

brainly.com/question/14963404

#SPJ1

4 0
9 months ago
Refer to the invertebrate cladogram above to answer the following questions.
Alex787 [66]
1. Multicellular
2. Multicellular, tissues, bilateral symmetry, body cavity, coelom, segmentation, jointed appendages, exoskeleton
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4.Jointed appendages, exoskeleton
5. Evolutionary phylogeny is unknown, but it is known to have some of these adaptive traits (multicellular, tissues, bilateral sym, body cavities, coelom)
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3 0
3 years ago
Read 2 more answers
Por qué en algunos países es de día mientras que en otros es de noche?
jek_recluse [69]
I'm not sure if you needed a translation or an answer but i'll give both:)

"Why is it that in some countries it is day while in others it is night"

because at different times of the day the sun hits different areas of the earth. I hope this helps!

porque en diferentes momentos del día el sol golpea diferentes áreas de la tierra. ¡Espero que esto ayude

8 0
3 years ago
Negative of pest control methods.
Blizzard [7]

Answer:

Control methods

Biological pest control. Main article: Biological pest control. ...

Cultural control. Cultivation by ploughing exposes insect pests to predators such as black-headed gulls. ...

Trap cropping. Main article: Trap crop. ...

Pesticides. Main article: Pesticide. ...

Hunting. ...

Physical pest control. ...

Poisoned bait. ...

Fumigation.

5 0
3 years ago
Match the component of a nephron with its description. Cuboidal cells with tall microvilli Contains podocytes and filtration sli
WINSTONCH [101]

Answer: check  the  table in the attachment for answer

Explanation:

Download docx
3 0
3 years ago
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