What are two ecosystem services provided for humans by forests?

Are there different types of swans

The two external openings into the nose are called the

1. What is the respiratory structure of a millipede? A. book lungs B. tracheal tube C. gill slits 2. what is the respiratory structure of a spider? A. gills B. book lungs C. tracheal tube D. gill slits

Which of the following is true about cells? a. Cells have specialized components that all perform the same functions. b. A cell's components are all identical and perform the same function. c.

The third level of cell organization is the tissue level system level o organism level o organ level

Plant morphologist have developed a hypothesis that leaves are flattened stems between which tissue has developed? True or false

Under which condition is competition among wolves most likely? A. When new vegetation grows in the habitat, bringing new prey to the area B. When a disease kills a large amount of the rabbit population C.

Which molecule is called the "molecule of heredity?

In spermatogenesis, how many cells are made up by the end of meiosis?

Azman disuruh oleh cikgu untuk memanaskan alkohol didalam sebuah tabung didih. apakah langkah langkah yang perlu diambil semasa mengendalikan alkohol? terangkan.