The heart pumps blood throughout the body and the stomach helps us digest the food we eat. How do the muscles help these two organs perform their function? Both the heart and stomach continue to work on their own by contracting and shortening their muscles.
The muscles of the heart and stomach contract and relax when we tell them to do so.
The muscles of the heart and stomach contract and relax without us thinking about them.
When the muscles of the heart and stomach contract, they pull on the bones and make them move.

What is the first step in a life cycle of a plant reproduce sexually

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.

Twind is considered to be an abiotic factor because it.?