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1 answer:

8 0

Answer: 1) DNA ( deoxyribonucleic acid) is considered as the genetic material of living organisms ( that is passed from parents to next generation). It determines the structure of protein that carry out essential function of life.

For this, DNA possesses instructions in the form of specific nucleotide sequences. First it undergoes transcription, in which genetic information from DNA is passed to mRNA ( messenger RNA), which is finally converted to specific protein through translation.

2) The importance of DNA determining proteins is that the proteins, which are formed, corresponds to specific cellular activities ( such as digestion of proteins, fats, carbohydrates) as well as the characteristics/ traits ( like color of skin, color of eyes) of the organism.

In this way, traits are passed from parents to their offspring through genetic material.

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Fill In the blank as shown below.

deff fn [24]

30 degrees Celsius.

8 0

2 years ago

A landslide quickly roads sediment on a steep hill. When the landslide reaches the bottom of the hill, it slows down and finally

yarga [219]

Answer:

Deposition

Explanation:

Landslides occur under the effect of gravity. When a mass of rock or earth slides down from a mountain or from a cliff then this phenomenon is termed as Landslide.

Landslides are considered to be a rapid method of erosion. Wind, waves, running water, glaciers and gravity are the five agents of erosion out of which the gravity influences the process of Landslides.

Landslides occur suddenly and are dangerous example of the movement of earth materials under the influence of gravity. When weathered material falls away from a cliff, it slides down under the effect of gravity and finally after reaching the hill, the material gets deposited there. This is called Deposition by landslides.

7 0

3 years ago

CAM photosynthesis limits CO2 fixation to nighttime hours in order to (A) allow water to enter leaf spaces during the daylight h

bixtya [17]

Answer:

(B) open stomata only at night, limiting water loss because of heat and low humidity.

Explanation:

CAM plants are found in the regions characterized by very hot and dry environmental conditions. These plants reduce the water loss through transpiration by exhibiting CAM photosynthesis.

They open the stomata during night time when the air is cooler and rich in moisture. They take in CO2 during night time and fix it into the oxaloacetate which in turn is converted into malate and is stored in the vacuoles.

During day time, stomata remain closed to prevent water loss and the CO2 trapped during night time (released by decarboxylation of malate) enter the Calvin cycle.

3 0

2 years ago

In hot weather, the testes are protected from the heat by relaxation of the dartos muscle. relaxation of the dartos muscle, cont

liubo4ka [24]

Answer:

Relaxation of the dartos muscle.

Explanation:

Testes are present in scrotum outside the pelvic cavity to maintain the temperature about 2-3 degrees Celsius below the body temperature as required for sperm production. Dartos muscle is the layer of smooth muscle located in the superficial fascia. The contraction of dartos muscle serves to make the skin of the scrotum wrinkled and tight.

During hot weather, the dartos muscle relaxes and makes the surface of scrotum less wrinkled to increase the loss of the heat from its surface. The increased heat loss from the surface of scrotum due to relaxed dartos muscles keeps the testes protected from heat.

5 0

2 years ago

Jerome and his family must evacuate during a hurricane. When his family returns, Jerome

ivanzaharov [21]

There is a messy and water is everywhere.

Explanation:

4 0

2 years ago