An antimicrobial chemical was added to a population of bacteria. The initial population was 107 living cells (10,000,000). After 2 minutes, only 106 cells still remained alive. After another 2 minutes (4 minutes of total treatment), about how many cells would still be alive?Group of answer choices

Explanation:

As given here, the initial population of bacteria was 10⁷( 10,000,000).

After the addition of antimicrobial chemical, the population of bacteria decreases at the rate of 90% of the total bacteria per 2 minutes,

So  after 2 minutes the remaining bacteria is 10,000,000- 9,000,000= 1000,000( 10⁶)

So as in question,  after next 2 minutes.

90% of this will die , so only 10% will remain= 1,000,000-900,000= 100,000

So After two minutes( total 4 minutes)  the remaining bacteria is= 10⁵ (100,000)

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.

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.