Answer:
<em>The correct option is B) Nutrients</em>
Explanation:
The availability of nutrients is very essential for a producer to survive. If nutrients will not be available, then the plant will not be able to carry out the essential processes which are required for its healthy living. The primary producers like plants take up nutrients from the soil.
Although, temperature and altitude also have an effect on the primary productivity but they can maintain homeostasis and hence these features will not affect that plant as much as the availability of nutrients.
Answer:
Genome projects help to increase milk and meat production by creating the high milk producing and faster growing hybrid cattle. Genome projects help to improve the health by generating disease resistant and drought resistant cattle.
ACTIVE TRANSPORT: uses energy and require a ligand to bind with receptors.
DIFFUSION: allows small, nonpolar molecule (like oxygen) to move across a cell membrane. It doesn't require energy.
<span>A fossil leaf that is made only of carbon preserved between two rock layers is called carbon film fossil.
</span>Characteristic of the carbon film fossils is that they are primarily composed of carbon. The fossil leaf has usually lost <span>internal components (cell walls and internal cell structures ).</span>
Genetic information is passed on from a parent to a child via the process of meiosis. When the cells divide, the four games produced are all different. Even though they all have the same number of chromosomes and carry information about the same characteristics, the specific information varies. For example, a homologous pair of chromosomes carry the gene for eye colour, where one chromosome caries the gene and holds information for a for blue eye colour and the other specifies brown eyes. When this cell forms gametes, half will have the information carrying for blue eyes and the other half will have the information for brown eyes. So, for Sarah and Helen to have blue eyes, it is clear that they both have the gene that carries information for their mother's blue eye colour.