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ankoles [38]
3 years ago
9

A trail pattern leading away from the victim at a stabbing scene was most likely created by:

Biology
1 answer:
Morgarella [4.7K]3 years ago
5 0

Answer: B. Blood dripping from the murder weapon.

Explanation: In bloodstain pattern analysis, blood spatters behave in accordance with some scientific laws in relation to what caused the bloodshed, the position of the victim and the perpetrators, and the velocity at which the blood is spattered. Since the blood trail is leading away from the stabbed victim, the blood trail is most likely created by the dripping of blood from the murder weapon

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A certain organelle is part of the endomembrane system of a cell and looks like flattened sacs of membranes. It is often referre
kvasek [131]

Answer:

Golgi apparatus

Explanation:

The endomembrane system includes the nuclear envelope, the endoplasmic reticulum, the Golgi apparatus, lysosomes, several types of vacuoles, and the plasma membrane.

The Golgi apparatus consists of flattened membranous sacs called cisternae. They are stacked upon each other. The membrane of each cisterna in a stack maintains the unique internal space from the cytosol. Proteins and lipids formed on the ER are packed in many transport vesicles and are delivered to the Golgi apparatus.

The Golgi apparatus serves as a site for modification, and packaging of proteins and lipids. Modification of proteins in the Golgi apparatus results in the formation of several types of modified biomolecules such as glycoproteins. It serves as the site for the packaging of secreted proteins and sorting of other proteins to vacuoles and other organelles via transport vesicles. The transport vesicles carrying various biomolecules are formed in the trans face of the Golgi apparatus. These vesicles pinch off from the Golgi membrane and transport their contents to a specific destination.

3 0
3 years ago
3 Which statement best describes a cause and its effect that occurs during the process of muscle contraction? A. The release of
Y_Kistochka [10]

Answer:A. The release of calcium ions causes myosin and actin to attach to each other.

The contraction of skeletal muscles takes place by induction of a nerve impulse, which produces a movement and the interaction of the filaments containing proteins named as actin and myosin. This interaction of filaments is regulated by proteins  called tropomyosin and troponin present on the actin filaments. The motor nerve causes the depolarization of the muscle membrane sarcolemma. This triggers the sarcoplasmic reticulum to release calcium ions. This calcium binds to troponin and thus allows the tropomyosine strand on the actin filament to displace so that the part of the actin where myosine head needs to be attached remain uncovered. Binding of the actin myosine filament results in contraction.

Hence, the release of calcium ions causes myosin and actin to attach to each other causes muscle contraction.

8 0
3 years ago
Complete the following sentence:_____ or _______ meaning some can live without _____
hjlf

Answer:

I don't even know what they're talking about how can I feel in the blank when I don't know the first word

Explanation:

the only thing I see is or meaning some can live without

3 0
3 years ago
Specialized cells in plant roots ensure that they grow down into the soil to find water and nutrients. This plant response by sp
ElenaW [278]
Here is the answer that would best complete the given statement above. Specialized cells in plant roots ensure that they grow down into the soil to find water and nutrients. This plant response by specialized cells is calledGRAVITROPISM. This is also known as geotropism wherein plants grow in response to gravity. Hope this answer helps. 
7 0
3 years ago
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During a client's routine physical examination, an abdominal aortic aneurysm is diagnosed. the client is admitted to the hospita
arlik [135]
Upon abdominal physical examination, the nurse can note that there is a "point of maximal impulse" (just like in the heart) presenting as a mass on the center of the abdomen. When this point is palpated, there are palpable pulsations. Therefore, the nurse should expect palpating a palpable pulsating abdominal mass.
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