Biology Answers

Explain in detail how the digestive, circulatory, and respiratory systems are interrelated and work together to maintain the body's homeostasis.

How may the conditions in the human body have an impact on any other of the life processes carried out by phage therapy?

Please help me with this

Trace the path a molecule of oxygen from the tissue of the brain

How is blood pressure controlled?

How many cells do you have at the end of Meiosis 1?

Fill the blanks to complete the statements related to concepts important in Genetics

What is a gene?

1. Instruction manuals for our bodies are called ____.

2. Of the ____ genes in the body only a few are used for making hemoglobin.

3. Since genes contain instructions for building proteins, one example of a protein would be ____.

A survey was conducted to estimate the population of barnacles (figure 1) in two coastal areas (i.e. A and B). The dimension of coastal area ‘A’ is around 20 m and 26 m. The dimension of coastal area ‘B’ is around 14 m and 15 m. 

Sampling in both areas was conducted using 1 x 1 m quadrat. Six quadrats were sampled randomly in each area. The numbers of barnacles in each quadrat as the following.

Area Q1 Q2 Q3 Q4 Q5 Q6

A 2 1 3 1 4 2

B 12 11 15 3 6 2

1.     Calculate the estimated population of barnacles in both areas A and B. Please show the details of the calculations. [5]

2.     Discuss your findings. [5]

Answer the following questions briefly.

1. How does water and minerals transported from the roots upward to very tall trees?

2. How does carbohydrates produced in the leaves transported to all the plant body?

Answer in brief but concise

1.Name in order the passage of air from the environment to the lungs.

2.Describe the process of gas exchange between the blood and alveoli of the lungs.