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Fed [463]
3 years ago
8

In reference to the electrical activity of the heart, what signals the end of the cardiac cycle

Biology
1 answer:
Lelu [443]3 years ago
3 0

Answer:

The electrical impulse travels from the sinus node to the atrioventricular node (also called AV node). There, impulses are slowed down for a very short period, then continue down the conduction pathway via the bundle of His into the ventricles.

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Suppose you could selectively prevent production of a-amylase or oligo-1,6-glucosidase in an organism that normally hydrolyzes s
wolverine [178]

Answer:

The correct answer would be alpha amylase.

Alpha enzyme is an enzyme that catalyzes the break down of alpha linkage present in polysaccharides such as starch, glycogen et cetera.

The help in breaking down complex polysaccharides into simpler units which can be easily absorbed by the body.

For example, alpha amylase is present in the form of salivary amylase and pancreatic amylase in humans. They breakdown the starch into smaller units such as maltose and dextrin.

In contrast, oligo-1,6-glucosidase is an enzyme that catalyzes the breakdown of alpha 1-6 linkage in some oligsaccharides.

Thus, the organism would miss alpha amylase more as compared to  oligo-1,6-glucosidase.

6 0
3 years ago
Read 2 more answers
por que crees que un bajo nivel de mutaciones puede ser ventajoso para una especie, mientras que un nivel alto puede ser desvent
Juliette [100K]

Respuesta: enfermedad de célula falciforme

Explicación: Para algunas condiciones, tener una copia mutada de un gen en cada célula es ventajoso, mientras que tener dos copias mutadas causa la enfermedad. El ejemplo mejor estudiado de este fenómeno es la enfermedad de células falciformes: tener dos copias mutadas del gen HBB en cada célula da como resultado la enfermedad, pero tener solo una copia proporciona cierta resistencia a la malaria. Esta resistencia a la enfermedad ayuda a explicar por qué las mutaciones que causan la enfermedad de células falciformes todavía se encuentran en muchas poblaciones, especialmente en áreas donde prevalece la malaria.

4 0
4 years ago
A 23-year-old white woman has come to the clinic because she has missed two menstrual periods. she states that her breasts have
Crank
<span>your further response to this finding is to to call a doctor to check up.</span>
3 0
4 years ago
WHAT IS THE EFFECT OF THE PRESENCE OF A RECESSIVE ALLELE IN AN INDIVIDUAL WHOE OTHER ALLELE IS A DOMINANT ALLELE
IgorC [24]

Answer:

This makes it a heterozygous allele and the dominant allele with be expressed.

For example:

T is for tall and t is for short

The heterozygous allele is Tt, which makes the allele "heterozygous tall"

7 0
3 years ago
Compare how the structures of amoebas and Volvox allow them to explore their
AysviL [449]

Answer:

Ii like volvo's lol

Explanation:

6 0
3 years ago
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