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Sonbull [250]
2 years ago
12

Which organelle is labeled H???

Biology
1 answer:
solmaris [256]2 years ago
5 0

Answer:

cell membrane

Explanation:

Your welcome!

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What is biodiversity?
sdas [7]

Answer:

2.all different types of organisms

4 0
2 years ago
Induction of peripheral tolerance in T cells: Please choose the correct answer from the following choices, and then select the s
oee [108]

Answer:

can be caused by interaction with MHC/peptide in the absence of costimulation

Explanation:

T cells represent a class of white blood cells (lymphocytes) that have a major role in the adaptive immunity of the organism against specific pathogens. Peripheral tolerance is a type of immunological tolerance aimed at ensuring B and T cells that escaped from the central tolerance mechanism do not produce autoimmune diseases. Some populations of lymph node cells can induce peripheral tolerance in T helper cells (Th cells, CD4+ cells) by the presentation of peptide-MHCII (major histocompatibility complex type II) complexes acquired from dendritic cells. These dendritic cells are antigen-presenting cells that play a key role in adaptive immunity, which are well-known to induce CD4 and CD8 T cell tolerance in response to antigens (peptides/proteins).

6 0
2 years ago
Can you differentiate the various dysrhythmias? for each disorder, drag and drop the statements that apply to the disorder to th
Ratling [72]

The right matches are:

Ventricular fibrillation  ==> Loss of consciousness and death

Two successive PVC's  ==> Often asymptomatic

Bizarre ECG waves ==> Defibrillation is needed .

Ventricular fibrillation is a violent and disordered contraction of muscle fibers, especially the heart muscle, in the ventricles. This systematically leads to loss of consciousness or death.

Defibrillation is a treatment by electrical shock of abnormal contractions of the heart fibers, in order to restore a normal heart rhythm.

Premature contraction of the heart alters the normal heart rhythm but is clinically undetectable or expressed as palpitations.

7 0
3 years ago
Could anyone help me pls would appreciate it​
tekilochka [14]

Answer:

I'm sure it's none of the above. The planting method where seeds are placed on top of a peak is called Hand Sowing.

7 0
2 years ago
Before 1800, most peppered moths in England were light-colored. During the Industrial Revolution, soot and industrial wastes dar
statuscvo [17]
The correct answer of this question is option B. Natural selection acted on the variation that was present in the population. This adaptation was a result from the Industrial Revolution. The dark-colored moths have camouflaged more effectively than the light-colored ones.
6 0
3 years ago
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