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Afina-wow [57]
3 years ago
5

Which two structures would provide a positive identification of an animal cell under a microscope?

Biology
1 answer:
love history [14]3 years ago
5 0

Answer:

c

Explanation:

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What happens after
Mamont248 [21]

Answer:

The DNA strand breaks apart (splits in half, if you will) in order for the translation process to begin.

8 0
2 years ago
5 Multiple choice:
Kruka [31]
1. The correct answer is A. silicone. 
Silicone is also referred to as polysiloxanes. They are termed as polymers which include any inert. It is a synthetic compound which is made up of repeating units of siloxane. They are heat resistant and rubber-like. They are used in medicine, lubricants, cooking utensils, and electrical insulation.

2. The correct answer is C. Formulating the mix. 
It is a way of marketing. There is no formula for multi-channel marketing. The most effective nowadays is multichannel and integrated.

3. The correct answer is B. humus.
Humus is termed as the dark organic matter which forms in the soil when dead plants and animals matter decays. It has a lot of nutrients which helps to improve the health of the soil and most important is the nitrogen. It affects the bulk density of soil which contributes to its retention of nutrients and moisture.

4. The correct answer B. Sweet.
The red soil is described by sweet. Sweet is something which smells good. Red soil develops to temperate, warm, moist climate which is under mixed forest. It has a thin organic and inorganic mineral layer. They are derived from crystalline rock.

5. The correct answer is B. Casting with sulfur.
Sulfur casts have both sides which have the same cast as the original.
4 0
3 years ago
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.

6 0
3 years ago
Breathing rate is most likely to increase if the blood level of
trapecia [35]

Answer:

Breathing rate is most likely to increase if the blood level of carbon dioxide increase.

Explanation:

Breathing rate is the number of breaths of a person during a specific time, is usually the number of respiratory cycles that occur per minute. External respiration is the process of exchanging oxygen and carbon dioxide from the outside of the human body to pulmonary capillary blood. Once in the lungs, oxygen (and carbon dioxide to a very small extent) through the alveoli, pass into the red blood cells of the pulmonary vein blood. Carbon dioxide reacts in the blood with water, thanks to an enzyme, giving rise to bicarbonate. Blood reaches the heart, and is pumped into the cells by systemic arteries. The oxygen in the blood crosses the cell membrane and in turn, an exchange occurs, since the cell expels carbon dioxide and oxygen that it has not used. Once the exchange is done, the blood is conducted through the systematic veins with oxygen whose partial pressure is lower, and with an increase in the partial pressure of carbon dioxide. It reaches the heart again, leads through the right atrium and ventricle and finally travels through the pulmonary artery to the lungs where the air is expelled (expiration). Breathing rate tends to increase when the level of carbon dioxide in the blood increase.

8 0
3 years ago
(word bank)
malfutka [58]
I’m too certain but i believe the answer is recreation
8 0
2 years ago
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