El corazón, aunque tiene cuatro cavidades, éstas no se comunican todas entre sí. En realidad se considera el corazón como dos módulos separados; formados cada uno por:

a. Aurícula derecha – aurícula izquierda y ventrículo derecho – ventrículo izquierdo.

b. Aurícula derecha – ventrículo izquierdo y aurícula izquierda – ventrículo derecho.

c. Aurícula derecha – ventrículo derecho y aurícula izquierda – ventrículo izquierdo.

cual es ayudenme

This is due ! matching pairs of chromosomes from parents are called a. homologous chromosomes b. heterozygous chromosomes c. herterogenes d. homologous bands

List two modern organisms that have pentameral symmetry

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. threat method number of species that benefit number of years to see benefit habitat fragmentation reforestation 450 8 introduced prey species biological augmentation 150 2 which statement is an accurate explanation of the information in the table? a. biological augmentation would benefit only a few species because it is typically not very effective. b. biological augmentation would take less time to be effective because it targets the majority of prey species. c. reforestation would take the longest time to be effective because trees take several years to grow. d. reforestation would not benefit many species because most forest species live on the ground.