Sorry if I’m wrong but I believe it’s the cardiovascular and lymphatic system
Hope this helps!
The phrase to fit into the blank is "sexual reproduction"!
In sexual reproduction each of the parents produces a gamete and contributes to half of the offspring's genes. This means that the offspring is a unique composition of the two parents.
In contrast, in a asexual reproduction, the offspring would likely have the same genetic code as the parent.
<span />
Permitting the exchange of nutrients and gases between the blood and tissue cells is the primary function of capillaries. Capillaries are the smallest blood vessels , they are only one cell thick, and they act as sites of the transfer of oxygen and other nutrients from the bloodstream to the body tissues. Additionally, they also collect carbon dioxide, waste materials and fluids for return to the veins.
Answer:
We ruin the ecosystem with pollution, littering, habitat destruction, and extinction of the wildlife.
Arruinamos el ecosistema con la contaminación, la basura, la destrucción del hábitat y la extinción de la vida silvestre.
Because if not u would not be who u are