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Nitella [24]
3 years ago
9

The development of vascular tissue allowed some seedless plants to

Biology
1 answer:
Softa [21]3 years ago
5 0
Reproduce and germinate
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3 years ago
40.Using the answer code on the right, match the description with the autonomic neurotransmitter.Neurotransmitter may be used mo
rusak2 [61]

Answer:

Explanation:

Autonomic neurotransmitters are the chemicals that are involved in the transmission of the neural signals in tne autonomic nervous system .The autonomic nervous system consist of the sympathetic (adrenergic)and parasympathetic (cholinergic)system and the receptors are alpha,beta and muscarinic ,nicotinic respectively. These receptors are found at various sites and elicit a variety of actions in the body. The main neurotransmitter of the adrenergic system is the epinephrine or non epinephrine and for the cholinergic system is acetylcholine.

All preganglionic neurons use ACh as the neurotransmitter

With the mentioned details :

<u> check attach files</u>

4 0
3 years ago
Can you determine which instances reflect a valid experiment or conclusion? Check only those that are valid.
Orlov [11]

Answer:

Only options A (first one) reflects the instances with valid experiment or conclusion.

Quality of any experiment depends upon two things reliability and validity. Reliability is measure of regeneration of results every time an experiment is performed under specific conditions.

Validity is measure of accuracy of results of an experiment. It can be check by two ways: internal validity (checks the design of the experiment) and external validity (checks if the conclusion is the real explanation of the phenomenon).

Now, in marine biologist experiment, he concluded the results only after one breeding season. This makes his results unreliable as it might have happened by chance.

Similarly, in cola experiment the taste was only checked by one candidate i.e. Karl. He might have problem in his taste buds. In addition, the temperature of cola can also affects its taste which is not taken care of in the experiment. Hence, it is not the valid experiment.

Similarly. Jeanette could use more plants for her experiment and Robert just followed only one instruction. He didn't perform any experiment.

<h2>* BRAINLIEST WOULD BE V APRECIATED :) </h2>

4 0
3 years ago
What is the difference between intermolecular and intramolecular forces?
anastassius [24]

Answer:

Intramolecular forces are the forces that hold atoms together within a molecule. Intermolecular forces are forces that exist between molecules.

Explanation:

3 0
3 years ago
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No links and i know this isn't actually biology
EleoNora [17]

Answer:

characteristics

234

Explanation:

the people needs asun because the sun is shining and all tee time people needs the sun

7 0
3 years ago
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