BIOLOGY HIGH SCHOOL

Infer whether species diversity increases or decreases after a fire on a grassland. explain your response.

Answers

Answer 1
Answer:

Answer:

Decreases.

Explanation:

Biodiversity may be defined as the variety of the living organism found in the earth. The diversity of the species may get affected and do not have any constant number.

The natural or human made calamity can decrease the species diversity. The fire on a grassland causes the death of many species, have harmful effects on many species and reduces the species number as well. This decreases the species diversity of the grassland.

Thus, the answer is decreases.
Answer 2
Answer: Due to a natual disaster many animals are likely to die. However animals with mutations would be more likely to survive than others. These animals that survive can now pass on their to their offspring. Thus contibuting to evolution. In conclution it increases species diversity

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Which of the following is the correct sequence of blood flow in birds and mammals?a. left ventricle → aorta → lungs → systemic circulationb. vena cava → right atrium → right ventricle → pulmonary veinc. pulmonary vein → left atrium → left ventricle → pulmonary circuitd. vena cava → right atrium → right ventricle → pulmonary artery

Answers

Answer:

Answered below

Explanation:

Birds and mammals have a double circulatory system and a four-chambered heart which separates the oxygenated blood and the deoxygenated blood from each other in the heart. This system of circulation is necessary to serve the high energy needs of the mammals and birds.

In this system, deoxygenated blood from the body passes through the superior and inferior Vena Cava into the right atrium. From the right atrium it flows into the right ventricle. From the right ventricle, it is then pumped into the pulmonary artery to be carried to the lungs. In the lungs, the deoxygenated blood is oxygenated and returned to the heart through the pulmonary veins.

Oxygenated blood enters the left atrium from the lungs through the pulmonary veins. It then moves into the left ventricle. In the left ventricle, it is then pumped into the aorta. The aorta is a large vessel that runs the length of the vertebral column, branching off to be circulate blood in the body system.

Organisms that have genes from another species spliced into them are called ______________________. A- enucleated B- vectors C- gene knocks D- transgenic

Answers

D, transgenic. Hope this helps.

Which of the following is a drawback to superconductors?-They perform well only at very low temperatures.
-They are made from extremely expensive materials.
-They have very few uses.
-They are dangerous to use.

Answers

The answer is the first option.

"They perform well only at very low temperatures."

Despite of advantages of Superconductors such as power and cost efficiency, these conductors have drawbacks. Semiconductors have restricted operation range of operating temperatures. They are required to work at very low temperatures. 

Answer:

They perform well only at very low temperatures.

Explanation:

it was on my test

Ecology that focuses on dynamic changes occurring in one species is _____ ecology.population
applied
systems

Answers

Ecology that focuses on dynamic changes occurring in one species is population ecology. It is the branch of ecology that deals with the continuous changes of species and how they interact with their environment. It also deals with the growth of a species over a period of time and region.

A farmer measures the soil depth below which the soil is saturated with water. His first measurement shows the saturation level at 1.2 inches below the surface. A week later, his second measurement shows that the saturation level has dropped another 0.4 inches.

Answers

Explanation:

When a farmer measures the depth of the soil to measure the saturation point of water in the soil and found that after 1.2 inches the soil is wet but after a week the saturated soil is found at 1.6 inches. There could be many reasons for this:

1. The crops could have utilized the water present in the topsoil.

2. The water has been evaporated from the soil due to farming practices if performed in that week.

3. The water could have percolated down as the soil could be highly porous.

4. The saturation of water depends on the physicochemical factors of soil also.

Variation of ecological habitats within a species is characteristic of which type of diversity?a.
Genetic diversity
b.
Ecosystem diversity
c.
Species diversity
d.
Regional diversity

Answers

The right answer for the question that is being asked and shown above is that: "B. Ecosystem diversity." Variation of ecological habitats within a species is characteristic of the type of diversity which is the Ecosystem diversity
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