Answer:
DNA is the chemical name for the molecule that carries genetic instructions in all living things. The DNA molecule consists of two strands that wind around one another to form a shape known as a double helix.
Explanation:
Answer:
There is a relationships between the number of stomata and the environment.
Explanation:
The small pores beneath the epidermis of a leaf is the stomata from theis opening gaseous exchange takes place,water evaporates and oxygen goes out. Stomatal density may increase or decrease the response due to environmental variations in the presence of sunlight and water availability. The opening and closing of stomata are controlled by guard cells. Through the stomata the process of transpiration occurs. the roots absorb water and excess of water evaporates by means of stomata.One fact is leaves under sunlight have higher stomatal density than leaves under shade.
Answer:
E. HER3, but not HER2 binds to its ligand, causing it heterodimerize with HER2. This activates HER2 tyrosine kinase which creates a GRB2 binding site.
Explanation:
The receptor tyrosine-protein kinase, also known as human epidermal growth factor receptor 3 (HER3), is a transmembrane tyrosine kinase receptor that doesn't have a kinase domain. HER3 binds to the HER2 protein (another receptor tyrosine kinase receptor) to form a heterodimeric complex. Conversely to the HER3 protein, HER2 lacks a ligand-binding domain. The HER2/HER3 complex triggers the activation of the HER2 kinase domain which then autophosphorylates and thus generates a binding site for the Growth factor receptor-bound protein 2 (Grb2).
Answer:
Sandy soil or Coarsely Textured Soils
Explanation:
All soils that have high amount of sand (sandy soil) or the one which have coarse texture are poor in organic matter retention and thus have low organic matter content. These soils are highly permeable and thus are unable to hold soil moisture and organic matter.
On the other hand they have rich salt content because they are in touch with salty water of sea or oceans.
oxygen and carbon CO2
Explanation:
Because oxygen Can throw up and carbon CO2 throw good for all human beings
