BIOLOGY HIGH SCHOOL

Describe how the types of vegetation present on this farmland would change if a fire burned down all thetrees 120 years after the land was abandoned.

Answers

Answer 1
Answer: Since you provide no further information, The types of vegetation that would exist after a fire burn down are those who are typically unaffected by the change in topography and left substances (such as carbon) after the fire. Some example of these vegetations are :  Pines and Giant sequoia

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Which is a lymphocyte? A. Urethra B. B cell C. Amylase D. Macrophage

Answers

Answer:

B cell

Explanation:
A lymphocyte count is usually part of a peripheral complete blood cell count and is expressed as the percentage of lymphocytes to the total number of white blood cells counted. A general increase in the number of lymphocytes is known as lymphocytosis, whereas a decrease is known as lymphocytopenia.

How do farmers contribute to water pollution?A. by dumping garbage into the water
B. by fertilizing their crops with nitrogen compounds
C. by fertilizing with sulfur dioxide
D. by not using fertilizers

Answers

The best answer is B. Farmers contribute to water pollution by fertilizing their crops with nitrogen compounds. Fertilizers have high contents of nutrients which includes compounds with nitrogen. This may contribute to water pollution when farmers overfertilize their crops which some of the fertilizers run off to bodies of water and may cause eutrophication.

A spider building its first web does so perfectly. What type of behavior is this?

Answers

It is known as a innate behavior

Which food component gives you the most energy? carbohydrate fat or protein

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Answer:  fat

Explanation:

Carbohydrates, fats and proteins are among the major nutrients in the food component.

  • Where proteins helps in growth of the body where as carbohydrates and fat provide energy. Protein has 4 calories per gram.
  • Carbohydrates are instant form of energy. All carbohydrates turn into glucose and raise our blood sugar. Carbohydrate has 4 calories per gram.
  • While fats are the slowest source of energy but provides most energy. Each gram of fat provides about 9 calories [ approximately more than twice that in proteins or carbohydrates].

Hence, fat gives you the most energy .

Eukaryotic cells reproduce asexually through the process of ________? what

Answers

Eukaryotes may reproduce by mitosis
Eukaryotic cells reproduce asexually through the process of mitosis.

An aerobic activity is defined as one that _____ the heart rate and ____ the body's need for oxygen.increases; decreasesincreases; increasesdecreases; decreasesdecreases; increases

Answers

Answer: increase, increase

The term aerobic literally means "with oxygen", and refers to the use of oxygen by muscles for generating energy. An aerobic activity will increase the rate of heat so that it can pump more oxygenated blood because of increase in muscle activity, the need of oxygen of body also increases.  

Hence, an aerobic activity is defined as one that increases the heart rate and increases the body's need for oxygen.
An aerobic activity increases the heart rate and decreases the body's need for oxygen.
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