Biology, 19.03.2021 16:00 robert7248
¿Cuál es la característica de los métodos de planificación familiar naturales?
A
Tienen mayor eficacia.
B
Son principalmente de barrera.
C
Consisten en el uso de dispositivos.
D
Están basados en el conocimiento del ciclo menstrual.
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Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.
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The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.
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What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled
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¿Cuál es la característica de los métodos de planificación familiar naturales?
A
Tienen mayo...
Tienen mayo...
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