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4 years ago

The causative agent of syphilis is called Trepanoma syphilis a. True b. False.

Biology

1 answer:

vagabundo [1.1K]4 years ago

6 0

Answer:

False.

Explanation:

Sexually transmitted disease or STDs are the infections that are spresd from one partner to another during sexual intercourse. Bacteria and virus can cause STDs.

Syphilis is an STD caused by the <em>Trepanoma pallidum.</em> The individual suffer from STD experiences burning sensation at genital parts and can easily transfer the disease to the unaffected partner.

Thus, the correct answer is option (b).

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Which of the following is the best definition of the term phenotype?

miskamm [114]

C

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3 years ago

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Label the components of the neuromuscular junction with the most appropriate and specific term provided.

natka813 [3]

The neuromuscular synapse is a chemical synapse between a motoneuron and a muscle cell (muscle fiber). The neuromuscular synapses consist of:

• the pre-synaptic cell-motoneuron that sends signal by releasing the the neurotransmitter from the synaptic vesicles

• synaptic cleft, place where neurotransmitter is released, between motoneuron and muscle fuber

• post-synaptic cell also called endplate -the muscle cell that receives the signal via receptors.

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3 years ago

Which human activity directly affects the quality of freshwater resources

AysviL [449]

The factories and the boats with oil they drop pollution

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3 years ago

2. A food web explains why there are more _____. It is because more energy is available to _____. A. Decomposers than consumers

Zielflug [23.3K]

Answer:

Explanation:

A food web explains why there are more producers than consumers. It is because more energy is available to producers.

The food web is a structural representation of the feeding relationship that exists among the living organisms in a particular environment.

A typical food web groups living organisms as producers, consumers, or decomposers. Producers are those that fix sunlight energy into chemical energy, a process known as photosynthesis while consumers are those that either feed on producers or other living organisms in the environment. The decomposers return both producers and consumers back to the earth and help nutrients circulate in the environment.

<em>In a typical food web, producers are usually more than consumers because more energy is usually available at this level. Less and less energy becomes available as we move up the ladder in each food chain that makes up the food web.</em>

The correct option is D.

3 0

3 years ago

Why does chromatin remodeling have to be the first step in gene activation? why does chromatin remodeling have to be the first s

mezya [45]

Answer:

Option 1: Eukaryotic DNA can be highly packaged in condensed chromatin and inaccessible to transcription factors and RNA polymerase.

Explanation:

A process in which chromatin is rearranged in such a way that it comes in a state ready to began the transcription is known as Chromatin remodeling.

Basically, what happens during chromatin remodeling is chromatin changes from a condensed state into a suitable state to begin transcription, in which DNA binding proteins and transcription factors have access to bind to the DNA and start the process of transcription or gene expression smoothly.

Significance of chromatin remodeling:

The process of chromatin remodeling holds immense importance in the expression of genes because if this remodeling will not occur, the most important gene expression controlling factors would not be able to access DNA and start transcription. Therefore, chromatin remodeling must has to be the first step in gene activation.
When chromatin is tightly packed,it is referred to as heterochromatin. But when chromatin becomes loose and accessible for transcription it is referred to as euchromatin (please see attached figure for a better understanding).

Once heterochromatin is changed into euchromatin, the process of transcription begins and makes it possible for the expression of genes in a timely and coordinated fashion.

Hope it helps!

5 0

3 years ago