It is a prehistoric bug that is mostly closely related to the arachnids of today. I lacks a spinneret though. It is one of the first trigonotarbids to ever be described. (It looks like a spiky tick. Seriously)
Answer:
A photosynthetic cell within a plant leaf produces chemical energy, stored within glucose molecules.
Explanation:
The energy captured from sunlight by Photosystems in chlorophyll is used to split a water molecule and reduce carbon dioxide to carbohydrates. This energy from sunlight is therefore stored in the chemical bonds of the glucose molecules. It is thereafter harnessed during cellular respiration when the chemical bonds of glucose are broken and the energy transferred to make ATP molecules.
Answer:
three types of stimuli—mechanical, thermal, and chemical; some endings respond primarily to one type of stimulation, whereas other endings can detect all types. Chemical substances produced by the body that excite pain receptors include bradykinin, serotonin, and histamine."
Explanation:
From edge
Answer:
abdc............,...............................
Answer:
Esta es mi respuesta quizá hay respuestas que difieran de la mía .
Bueno tus diagramas son mas de euler que de venn, por que les falta el conjunto universo. pero bueno para lógica matemática nos sirven ambos.
A ver:
Para representar por Compresión, expresamos la principal característica global que define a los elementos del conjunto con simbología o escritura.
Para expresar por Extensión se ponen todos los elementos del conjunto.
Para tu ejercicio:
a)
Extensión
A={ 1 ; 4 ; 5 ; 12 }
B={4 ; 8 ; 12}
Compresión
x / x ∈ AUB ⇔ x∈A ó x∈B
b)
Extensión
A={10,5,14}
B={5 ; 14}
Comprensión
x / x ∈ A ⇔ B⊂A ⇒ x ∈ B
c)
Extensión
A={8 ; 9}
B={5 ; 15}
Comprensión
x / x ∈ A ⇔A⊄B
x / x ∈ B ⇔B⊄A
Explanation:
