Beta-blockers select one: a. increase a dangerously low heart rate b. have widespread sympathetic effects c. are potent antidepressants d. decrease heart rate and blood pressure

Beta-blockers decrease heart rate and blood pressure. D

It is a drug that might be used specifically to reduce heart rate in cardiac patients.  The drug is also referred to as beta-adrenoceptor blocking agents and are prescription-only medicines (POMS).

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.

the answer is 1. photosynthesis. glad to