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marissa [1.9K]
4 years ago
9

Each replicated chromosome pairs with its corresponding homologous chromosome. True or false

Biology
1 answer:
natta225 [31]4 years ago
4 0

Answer:

True

Explanation:

Each replicated chromosome pairs with its corresponding homologous chromosome forming a tetrad. During tetrad formation, alleles can be exchanged between chromatids, a process called crossing-over.

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¿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
Four people who have been injured in a car accident are admitted to the emergency department. using the emergency severity index
Alenkasestr [34]
The Emergency Severity Index is a 5 level emergency department triage being maintained by the AHRQ. Among the victims of the car accident here is the order in which they should be seen by a healthcare provider. First, an adult with a laceration with severe bleeding. Second, an adult having 30 breaths per minute respiration with a history of asthma. Third, an older adult confuse yet with normal vital signs and lastly is a child with lacerations on arms as well as in the legs.
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Incubation refers to the time the disease is contracted and first sign of visible symptoms true or false ?
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False incubation is when there is no symptoms but ur sick
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4 years ago
The first invertebrates to develop a true nervous system are
Rina8888 [55]

Answer:

Coelenterates are the first invertebrates to develop a true nervous system.

Explanation:

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4 years ago
The formation of the fertilization envelope (slow-block to polyspermy) requires an increase in the availability of _____.
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