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grandymaker [24]
3 years ago
5

2. Which of the following is a sample of igneous rock?

Biology
1 answer:
miskamm [114]3 years ago
5 0

Answer: The actual answer is sample B.

Explanation: Igneous Rocks are either known as Intrusive Rocks which are crystallize that form underneath the Earth's Surface, and Extrusive Rocks which are known as volcanic rocks.

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Do you think most traits are inherited the way mouse fur color is?
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3 years ago
Drew observed in an experiment that algae in a nearby lake could be found at six meters below the water's surface on a clear day
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Answer:

The depth at which Drew found the algae

Explanation:

The dependent variable was the depth at which he found the algae, because that is what he measured on each day.

The independent variable was the sky conditions, since that changed from clear to cloudy, which impacted the dependent variable/the depth of the algae.

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The spinal cord is most important for: Group of answer choices Production of routine behaviors, such as walking Voluntary behavi
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Answer:

Receiving sensory information and carrying commands to the muscles.

Explanation:

The spinal cord serves as the transmission conduit  for the passage of action potential as sensory information through the sensory/afferent neurons to the dorsal roots of the spinal cord.The information  synapse with the inter neurons,branching off to the brain and emerged as the  response through the motor/efferent neurons to the effectors(muscles).

This pathways is called reflex arc. Thus most of the involuntary action of the body is conducted through the spinal cord

4 0
3 years ago
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Part A - Modification of chromatin structure Which statements about the modification of chromatin structure in eukaryotes are tr
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Answer:

Some forms of chromatin modification can be passed on to future generation of cells

Acetylation of histone tails in chromatin allows access to DNA for transcription

DNA is not transcribed when packaged tightly in a condensed form

methylation of histone tails can promote condensation of the chromatin

Explanation:

chromatin modifications that can be passed on includes epigenetic modifications that are heritable changes made to the chromatin structure that does not involve the DNA sequences. Some epigenetic modifications include DNA methylation and Histone modifications. examples of histone modification include acetylation, methylation, phosphorylation, ubiquintylation etc. All these function either in allowing the DNA become more accessible to transcritional factors or vice versa. for exmple, histone tail acetylation encourages unwounding of nucleosomes allowing transcriptional factors to have access to the DNa while histone tails methylation further tightens the nucleosomes promoting condensation of the chromatin.

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3 years ago
Name 3 similarities between Saturn and Venus
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Answer:

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Explanation:

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