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3 years ago

Where is oxygen content in river or stream likely to be highest?

Biology

2 answers:

FrozenT [24]3 years ago

6 0

Where is oxygen content in river or stream likely to be highest? The mouth

Harrizon [31]3 years ago

4 0

The mouth of the river

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What is the difference between asexual and sexual with plants??

MAXImum [283]

Answer:

see below hope this helps !

Explanation:

Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent.

Sexual reproduction involves two parents and produces offspring that are genetically unique.

6 0

2 years ago

Read 2 more answers

Neurons in the parasympathetic pathway use which neurotransmitters?

Kay [80]

<h2>Acetylcholine</h2>

Explanation:

Acetylcholine is a chemical that is found between the nerve synapses, or gaps, between nerve cells. When activated, it causes the contraction of skeletal muscles and activates glandular functions in the endocrine system. Think of acetylcholine as a mailperson; residents cannot receive their mail until he or she comes and delivers it to the mailbox. Like mailpersons who deliver the mail and move on to the next house, acetylcholine acts quickly and does not hang around. As a result, acetylcholine is rapidly broken down by another chemical substance called cholinesterase.
Acetylcholine was the first neurotransmitter scientists discovered, as well as the most abundant neurotransmitter in the body. A neurotransmitter is a chemical that is released by a neuron, or nerve cell, that sends a signal to another neuron across a synapse. The neurotransmitter binds to receptors to affect how the signal is received. The purpose of the neurotransmitter is to either amplify or inhibit the signals sent between the neurons.
Acetylcholine plays an important role in the signal of muscle movement, sensation of pain, learning and memory formation, the regulation of the endocrine system and rapid eye movement (REM) sleep cycles.

5 0

2 years ago

PLEASE ANSWER QUICKLY

Rasek [7]

Answer:

incomplete dominance

Explanation:

This is because incomplete dorminance is a type of inheritance pattern in which a dorminant allele does not completely masked the effect of recessive allele. The recessive allele is expressed little and the dorminant. Example is the nose size. The allele for big nose and recessive allele for small nose are not completely dorminant.

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2 years ago

Scientists learn about the universe by studying the light that comes to Earth from stars and other objects in space. If you were

Anni [7]

Answer: Here's 4 so you can choose

How many stars are in space?

How far away from Earth are certain stars?

Are there other planets like Earth?

Could a large meteor ever strike Earth

Explanation:

8 0

2 years ago

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The meselson-stahl experiment supported which mechanism for dna replication? see section 15.2 (page 320) .

Arte-miy333 [17]

Answer;
DNA replication is semi-conservative.
The meselson-stahl experiment supported the hypothesis that DNA replication is semi-conservative.

Explanation;
The Meselson-Stahl experiment was an experiment by Meselson and Stahl that proved that the semi-conservative model by Watson and Crick was correct.
DNA replication is semi-conservative in the sense that the new helices formed after replication contain, one new DNA strand and one old strand from the parent DNA molecule.

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2 years ago