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Bezzdna [24]
3 years ago
7

WILL GIVE BRAINLIEST TO WHOEVER HELPS ME What are the characteristics of prokaryotes?

Biology
1 answer:
jekas [21]3 years ago
4 0

Answer:

A. A prokaryote lacks a well-defined nucleus.

C. A prokaryote lacks cell organelles.

Explanation:

A prokaryote has DNA or RNA just floating in the cytoplasm. There is no nucleus to hold them inside. A prokaryote also lacks a mitochondria and other organelles, so it is different from a eukaryote.

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How developmental genes play role in evolution?
ehidna [41]

Answer:

Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection).

Explanation:

<h3>❣️(◍jess bregoli◍)❣️</h3>

yo brother! wassup brother

lm.ao

5 0
3 years ago
¿Qué se puede agregar a un átomo para hacer que un electrón sin valencia en el átomo se convierta temporalmente en un electrón d
NNADVOKAT [17]

Energía.

Explicación:

Generalmente, los electrones giran continuamente en las capas de los átomos. Si estos electrones se encuentran en las capas más externas de un átomo, se denominan electrones de valencia.

Son necesarios para las reacciones químicas de un átomo en particular con otro, a través de sus pérdidas o compartidas.

En los átomos sin valencia, sus capas más externas no tienen electrones en sus capas más externas, tales átomos son estables.

Sin embargo, si se suministra cierta cantidad de energía a dicho átomo, el electrón gana energía y, por lo tanto, se excita.

Por lo tanto, se mueven de niveles de energía más bajos a niveles de energía más altos, y hacen que el átomo sin valencia se convierta en valencia temporalmente, a medida que se mueven hacia la capa más externa.

Answer:

Energy.

Explanation:

Generally, electrons revolves continuously in the shells of  atoms.if these electrons are located in the outer most shells of an atom,they are refereed to as the Valence electrons.

They are needed for chemical reactions of a particular atom with another,through their loses or sharing.

In Non -valence atoms their outermost shells do not have electrons at their outermost shells,such atoms are stable.

However, if  certain quantity of energy is supplied  to  such atom, the electron  gains energy and therefore becomes excited.

They therefore move from lower energy levels to higher energy levels,and makes the non- valence atom becomes valence temporarily, as they move into the outermost shell.

5 0
3 years ago
By age 30, what percentage of men and women have lived together without being married (cohabitated)?
yanalaym [24]

Answer:

50 percent

Explanation:

hope this helps

6 0
3 years ago
A man who donates sperm to a sperm bank is maximizing his __________________ while minimizing his _____________. By shopping thr
hoa [83]

Answer:

inclusive fitness, parental investment, eugenics

Explanation:

: )

8 0
3 years ago
Read 2 more answers
Should any of Marjorie's family members whom she comes into contact with be considered at risk of pertussis? If so, who?A) Yes,
dalvyx [7]

Answer:

C) Yes, the six-week-old cousin should be considered at risk.

Explanation:

young are at higher risk of pertussis  as compared to older children and adult because  young infants are not fully immunized. At the young age of 6 week, the cousin may not have started the DPT vaccination.  so babies at this age gets easily affected when they are in contact with the infected people.

8 0
3 years ago
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