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kirza4 [7]
3 years ago
13

Select the correct answer.

Biology
1 answer:
Paladinen [302]3 years ago
5 0

Answer:

Carbon-14

Source: "Carbon-14 dating is a way of determining the age of certain archaeological artifacts of a biological origin up to about 50,000 years old. It is used in dating things such as bone, cloth, wood and plant fibers that were created in the relatively recent past by human activities. " (HowStuffWorks)

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A derived trait of land plants is the presence of small openings that allow gaseous exchange between the plant and its environme
mel-nik [20]

Answer:

B. stomata.  

Explanation:

Stomata are openings in the surface of the plant epidermis through which gases and water vapor pass. They are formed by two elongated cells whose shape is similar to bean grain or dumbbell depending on the species.  These cells are called guard cells, and in their midst there is a slit called the ostiole.

The stomata make the exchanges between the external and internal environment of the plant. They regulate the size of the opening, so it is possible to increase or decrease the rate of perspiration of the plant.

Stomata are usually located at the bottom of the leaf, but in aquatic plants such as the water lily they are at the top and still in vertical growing plants on both sides.

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3 years ago
Each level of organization in an ecosystem is made up of parts. Which of the following is an example of the population level of
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The answer is D cuz I just looked up a lot of it and saw the pics so ya its D
5 0
3 years ago
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A transport system that moves one solute into the cell and another one out of the cell during a single cycle accompanied by the
Vitek1552 [10]

A transport system that moves one solute into the cell and another one out of the cell during a single cycle accompanied by the expenditure of energy through ATP hydrolysis could be called a(n)  active transport.

<h3><u>Explanation:</u></h3>

A system of transport that helps in the movement of  one solute in a cell and the other out of the cell with a release of energy through ATP hydrolysis is an active transport. Active transport refers to the process that facilitates the molecules or ions to move across a cell membrane. This process requires enzymes and energy.

The movement of the ions or molecules inside a cell or out of the cell occurs across they cell membrane  from the lower concentration region to the higher concentration region is the active transport process. It is always related to the accumulation process of ions, amino acids glucose which are higher concentration molecules.  

4 0
3 years ago
Which of these groups is the smallest level of classification? A. Class B. Order C. Phylum D.Family​
Morgarella [4.7K]

Answer:

Family.

Explanation:

Largest classification to smallest:

Domain

Kingdom

Phylum

Class

Order

Family

Genus

Species

From smallest to largest the order is

Species

Genus

Family

Order

Class

Phylum

Kingdom

Domain

8 0
3 years ago
Kingdom Fungi
zmey [24]

Answer:

Eukaryotic in nature. They are higher classes of Eukaryotic organisms

7 0
3 years ago
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