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IRINA_888 [86]
3 years ago
5

The accompanying figure best represents what happens at a(n) ____.

Biology
1 answer:
Furkat [3]3 years ago
5 0

Answer: Option D: Neuromuscular junction

Explanation:

This is the site of transmission of chemical signal also known as a chemical synapse between a neuron and a muscle fibre. Most of the time the chemical released which is a neurotransmitter is acetylcholine. When released, it stimulates the release of calcuim ions present in the sarcoplasm: an endoplasm like structure in the muscle fiber that contains calcium ions.

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It is a winter day in Florida, and the temperature is 40°F in the morning. While you are walking to class, your body uses a nega
zhannawk [14.2K]

Answer:

negative feedback

Explanation:

The negative feedback system is the most common in the body, being considered by many authors the primary mechanism for the maintenance of homeostasis. It causes a negative change from the initial change, that is, a stimulus contrary to the one that led to the imbalance. In the case of the above question, when the ambient temperature increased, your body began to sweat to lower the temperature, that is, your body is trying to make a stimulus contrary to what is happening in the environment, so we can state that your body is going through a negative feedback system.

5 0
3 years ago
If an object has a net leftward force of 20 N,then will it accelerate leftward?
Dmitriy789 [7]
If an object has a net force acting on it, it will accelerate. The object will speed up, slow down or change direction. An unbalanced force<span> (net force) acting on an object changes its speed and/or direction of motion. An unbalanced force is an unopposed force that causes a change in motion. A net force = unbalanced force. </span><span>If however, the forces are balanced (in equilibrium) and there is no net force, the object will not accelerate and the velocity will remain constant. the source i found this answer is, https://www.mansfieldct.org/Schools/MMS/staff/hand/lawsunbalancedforce.htm     

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7 0
3 years ago
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Hair is composed of the protein keratin, which is also the primary component of finger and toe _________. Hair is produced from
Lilit [14]

Answer:

<h2>Nails, follicle, fetal </h2>

Explanation:

1.  Keratin is the protein that makes up hair, skin, nails and horns in animals. It can also be found in many  internal organs and glands. Our Hair is composed of keratin protein, and it  is also the primary component of finger and toe nails.

2. Hair is produced from hair follicles. Hair follicles are develop in humans during fetal development, and there is no new follicle production after birth.

6 0
3 years ago
Mendel concluded experiments with pea plants in order to
Alex787 [66]

Answer:

Study genetics

Explanation:

The peas that Mendel used for his studies were easy to obtain and inexpensive materials. I carry out experiments on genetics with them, crossing two pea plants (yellow and green), thus allowing us to observe their characters, dominant or recessive. Thus he could state the three laws: 1st (uniformity), 2nd (segregation principle) and 3rd (independent combination).

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3 years ago
Chemical equation of photosynthesis and cellular respiration
PtichkaEL [24]
Photosynthesis:
H2O + Co2 + atp = O2 + glucose
Is that what you were looking for?
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3 years ago
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