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Marizza181 [45]
3 years ago
12

In the 1990s, many scientists agreed that the five-kingdom classification scheme should be expanded to six kingdoms. Which disco

very
supported this decision?
A
Fungi differed significantly from both plants and animals
B. Two groups of monerans-Eubacteria and Archaebacteria--differed significantly from one another
C
Protists are not a true kingdom, and should be classified in at least two different kingdoms
D. Fungi are not a true kingdom, and should be classified in at least two different kingdoms
Biology
1 answer:
chubhunter [2.5K]3 years ago
5 0

Answer:

B. Two groups of monerans-Eubacteria and Archaebacteria--differed significantly from one another

Explanation:

It was Carl Woese who divided the prokaryotes into 2 kingdoms, Eubacteria and Archaebacteria based on RNA studies. So. this led to additional 6th classification added to Whittaker's classification of 5 kingdoms.

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BigorU [14]

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Not a scientific question bevause it asks about what people think instead of how nature works

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What Do Bacteria Have In Common With the other living organisims?
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Bacteria has cytoplasm and ribosomes which are common with all cells and other living organisms
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What kind of molecule is formed when many disaccharide molecules are combined?
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Which option most accurately states a central idea of "‘rewilding' draws on the past to modify plants"?
cestrela7 [59]

Answer;

Rewilding is the process of introducing genes of ancient plants into modern species.

Explanation;

-Rewilding is a progressive approach to conservation. It involves allowing the nature to take care of itself, enabling natural processes to shape land and sea, repair damaged ecosystems and restore degraded landscapes.

Through rewilding, wildlife's natural rhythms create wilder, more biodiverse habitats.

4 0
3 years ago
In a common reflex arc, after a sensory nerve signal is processed by interneurons in the integration center, where does the sign
kobusy [5.1K]

In a reflex arc, after a sensory nerve signal is processed by interneurons in the integration center, the signal goes to the motor neuron. The answer is motor neurons.

<h3>What is the reflex arc?</h3>

The reflex arc refers to the sequence of events since the body receives an external stimulus until it reacts.

In general terms,

1) A stimulus of varying nature reaches the body.

2) The peripheric nervous system -PNS- receives the stimulus and sends this information to the central nervous system -CNS-.

3) The CNS processes the information and sends another signal as a response to the stimulus.

Five elements compose the reflex arc, which are receptors, three types of neurons, and effectors.

The neurons involved in the mechanism are:

• Afferent or sensorial neurons

• Interneurons

• Efferent or motor neurons

Mode of Action:

  • <u>Ascending branch</u>

The stimulus reaches the body and is received by the specialized sensory receptors.

Afferent neurons, placed in the dermis and epidermis, receive this information from receptors, react and send it to the central nervous system as nerve impulses.

  • <u>Descending branch</u>

Interneurons in the CNS, process the information and send a motor response.  

Efferent neurons carry the response from the CNS to the effector organs, which might be either a muscle or a gland.

Finally, the target tissue responds to the stimulus as a contraction -muscle-,or as hormones release -gland-.

A motor neuron is formed by a cellular body, dendrites (cytoplasmic extensions that receive stimuli from other cells), and a long axon that is capable of conducting the electrochemical signals.

The axon brunches out into several extensions when it approaches the muscle.

At the end of each brunch, the axon is inserted in the muscle fiber surface, composing neuromuscular join.

This is the last part of the NS involved in the process before the muscle contracts.

After a sensory nerve signal is processed by interneurons in the integration center, the signal goes to the motor neuron, and from there to the effector.  

The corrct answer is motorneuron.

You can learn more about the reflex arc at

brainly.com/question/894334

#SPJ1

3 0
2 years ago
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