How many years to double between 2 billion and 4 billion?

Answer:

Dry Heat

Explanation:

Answer: dry heat

Explanation:

just took the quiz

Answer:

c. Each key is organized as a flowchart.

Explanation:

A dichotomous key is a device that enables users to recognise natural world objects, such as wildflowers, trees, reptiles, mammals, fish and rocks. it used for the Identification whereby groups of species are frequently divided into two categories with increasing sequential division, more information on the basic characteristics of a particular organism is released.

Dichotomous keys are represented in two ways including either as descriptive representation in which a series of paired statements arraged in a numbered sequence or as a branching flowchart (diagrammatic representation).

Hence, the correct option is c.

Answer:

Each is a series of statements

Explanation:

If you have seen dichotomous keys you see that there are tables and flo charts. Notice each answer choice says "Each" but there are many different kinds. Dichotomous keys are definitely not mathematical formulas. SO you can infer it is a series of statements. Also I took the test

A. carbohydrates

Hope you do good, and anyone else who comes across this

:)

The macromolecules are mostly composed of carbon, oxygen, and a hydrogen atom. The carbohydrates contain these atoms in the ratio of 1:2:1 represented by the formula .

Further Explanation:

The carbohydrates and lipids are identified by using the C:H:O ratio but lipids have very low oxygen content as compared to the carbohydrates. The proteins also contain sulfur and nitrogen along with carbon, oxygen, and hydrogen. The carbohydrates are composed of water and carbon dioxide by the photosynthesis process in the plants. The components like potatoes, vegetables, cereals, and fruits contain carbohydrates.

The carbohydrates are divided into monosaccharides, polysaccharides and disaccharides depending on the carbon chain length. The simple sugars or monosaccharides provide energy to the cell as they breakdown and produce ATP. These are fructose, galactose, and glucose. The disaccharides consist of two units of monosaccharide that are linked together through a dehydration reaction. In this reaction, a water molecule is released as the hydrogen of one monosaccharide binds with the hydroxyl (-OH) group of another monosaccharide forming a glycosidic linkage. For example, glucose combines with another glucose to form maltose. Other disaccharides are sucrose (glucose + fructose) and lactose (glucose + galactose).

The polysaccharides such as starch and glycogen are storage polymers which are stored as an energy source respectively in plants and animals. Starch is stored in the seeds to provide food to the developing embryo. Glycogen is used by humans and animals as a source of energy and is cleaved into respective glucose units through digestive enzymes before its conversion into ATP. Chitin and cellulose are also polysaccharides that help a cell in providing the structural support.

Learn more:

1. Learn more about difference in DNA and RNA brainly.com/question/334927

2. Learn more about similarity between aerobic and anaerobic respiration brainly.com/question/1544781

3. Learn more about site of protein synthesis brainly.com/question/1420458

Answer Details:

Grade: High School

Subject: Biology

Chapter: Carbohydrates

Keywords:

Carbohydrates, proteins, oils, lipids, monosaccharides, polysaccharides, disaccharides, glucose, galactose, fructose, structural support, chitin, cellulose, storage polymers, starch, glycogen, ATP.