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aalyn [17]
3 years ago
12

When cells lose their ability to regulate the cell cycle, they can divide at an accelerated rate and form a mass of cells. This

mass of cells is referred to as —
Biology
1 answer:
ladessa [460]3 years ago
3 0

Answer:d

Explanation:

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The nucleus has a system of _____ embedded within its outer membrane which allows communication between the nucleus interior and
Bumek [7]

Answer:

pores

Explanation:

The nucleus consists of "nuclear pores" on its outer membrane. Each of these are surrounded by <em>nuclear pore complex.</em> It allows the pore to <u>regulate the movement of molecules between the nucleus and the cytoplasm.</u> It allows small particles to pass through such as ribosomal proteins. It prevents most large particles<em> (except for histone)</em> from passing through; thus, <u>it is selective in nature</u>. This function of the pores clearly shows that <em>it allows communication to occur between the nucleus interior and the cytoplasm.</em>

5 0
3 years ago
Which of the following is true of retroviruses? (3 points)
Nikitich [7]

Answer:

Explanation:

A retrovirus is an RNA virus that is duplicated in a host cell using the reverse transcriptase enzyme to produce DNA from its RNA genome. The DNA is then incorporated into the host’s genome by an integrase enzyme. The virus thereafter replicates as part of the host cell’s DNA. Retroviruses are enveloped viruses that belong to the viral family Retroviridae. A special variant of retroviruses are endogenous retroviruses, which are integrated into the genome of the host and inherited across generations. Endogenous retroviruses are a type of transposon.

8 0
2 years ago
Describe the structure of a neuron. Include the cell body, dendrites, and axon in your description. How does the structure of a
igomit [66]

Answer: A neuron has three main parts: dendrites, an axon, and a cell body or soma , which can be represented as the branches, roots and trunk of a tree, respectively. A dendrite (tree branch) is where a neuron receives input from other cells. Dendrites branch as they move towards their tips, just like tree branches do, and they even have leaf-like structures on them called spines.

The axon (tree roots) is the output structure of the neuron; when a neuron wants to talk to another neuron, it sends an electrical message called an action potential throughout the entire axon.

The features of neurons help them to carry out their function efficiently:

they have a long fibre (axon) so they can carry messages up and down the body over long distances

in a stimulated neuron, an electrical nerve impulse passes along the axon

the axon is insulated by a fatty (myelin) sheath - the fatty sheath increases the speed of the nerve impulses along the neuron

at each end of the neuron are tiny branches (dendrons), which branch even further into dendrites - the dendrites receive incoming nerve impulses from other neurons

Explanation:

Hope this is helpful!!

4 0
2 years ago
Goals of the relapse prevention model include dealing with feelings of guilt and a perceived loss of control if a relapse should
Zolol [24]

The answer is A

The abstinence violation effect

<span>This effect  occurs when an individual, having made a personal commitment to abstain from using a substance or to stop engaging in some other unwanted behavior, has an initial lapse whereby the substance or behavior is engaged in at least once. Some individuals may then proceed to uncontrolled use. It occurs when the person attributes the cause of the initial lapse to internal, stable, and global factors within.</span>




8 0
3 years ago
Describe what Bill Nye was trying to demonstrate by removing some of the blocks in his tower of blocks
UNO [17]

Answer:

To destroy the tower!!!!!!!!!!!!

Explanation:

5 0
3 years ago
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