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Vitek1552 [10]
3 years ago
12

When a person is hooked up to a machine that will record myograms, a record of their muscle activity can be produced (depending

on the frequency and strength of the stimuli that generate an action potential in their muscle tissue). If the person receives a series of multiple stimuli in a short period of time, the wave of muscle activity that will be recorded will show a sustained contraction with no period of relaxation in between the periods when they receive the stimuli. The myograms has recorded:_____________..
Biology
1 answer:
vodomira [7]3 years ago
4 0

Answer:

Fused (complete) tentanus

Explanation:

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In a forest ecosystem, seeds are eaten by mice, which are eaten by hawks. If the population of hawks suddenly increased:
Anna35 [415]

Answer:

C. The population of mice would decrease.

Explanation:

4 0
3 years ago
Increasing the I concentrations of carbon dioxide available to aquatic plants will increase the rate of photosynthesis as measur
Andru [333]

Answer:

The correct answer is -

Independent variable - change in the concentration of carbon dioxide

Dependent variable - bubbles produced

Explanation:

The independent variable of an experiment or study is a variable that is subject to change or being manipulated during the study to find the response on the dependent variable. The concentration of carbon dioxide is here manipulated to find the change in the amount of bubble produced.

The dependent variable is a response that is carried out by the change or manipulation of the independent factor. In this case amount of bubbles is the dependent variable.

Thus, the correct answer is -

Independent variable - change in the concentration of carbon dioxide

Dependent variable - bubbles produced

8 0
4 years ago
A host cell infected by a virus will activate the adaptive immune response through _______. (Select all that apply) Dendritic ce
Inga [223]

Answer:

Cytotoxic T cell

Helper T cell

Explanation:

Adaptive immune system is a part of the immune system initiated only when there is an attack by a pathogen or foreign substance. The adaptive immune system is beckoned on when the infection is insurmountable for the body's first line of immunity, which is the innate immune system.

The adaptive immune response is triggered by the white blood cells called LYMPHOCYTES. Lymphocytes consists of T cells and B cells. T cells are either cytotoxic or helper T cells. The cytotoxic T cells kills the cells infected with the virus while the Helper T cells activate every other cell involved in the immune process.

4 0
3 years ago
Based on Figure 21-1, which of the major groups of protists is MOST closely related to plants?
Papessa [141]
I believe the answer is Rhodophyta.
Classification of protists in one kingdom is difficult because protists more closely resmble members of other eukaryotic kingdoms than they do other protists. Rhodophyta orred algae are distinct eukaryotic lineage characterized by the accessory photosynthetic pigments phycoerythrin, phycocyanin and allophycocyanins arranged in phycobiliomes and the absene of flagella and centrioles. 
7 0
4 years ago
Read 2 more answers
Compare the structure of a typical prokaryotic cell with that of a typical eukaryotic cell. What structures would you find in bo
Karolina [17]

Answer:

Structures that you will find in both of them:

1. Plasma membrane

2. Ribosomes

3. Cytoplasm

4. DNA

Structures that you will find only in Eukaryotic Cells:

1. Nucleus

2. Organelles

About their size the Eukaryotic cell(10-100 µm in diameter)   is larger than a prokaryotic cell (0.1-5.0 µm in diameter) .

8 0
3 years ago
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