Answer:
1) Palisade cells are present in the leaves of the plant below epidermis and cuticle. These cells contain chloroplast where photosynthesis occurs.
2) Guard Cells are present in the epidermis of leaves, stem and branches of plants. They are responsible for opening and closing of small hole called stomata which helps in the exchange of gases.
3) Veins are present in the leaves which is responsible for the transportation of water and food within the leaves.
4) Waxy Cuticle is present on the surface of leaves. Its main function is to reduce the transpiration in plants.
C it brings warm water to the Gulf of Mexico from the North Atlantic
Answer:
The number of primary consumers will increase
Explanation:
If all the secondary consumers disappear, the primary consumers will continue to reproduce causing the population to increase
Answer:
In order to find out the genotype we do a testcross of green pea pods with yellow pea pods.
Explanation:
1. If the F1 generation consist of green pea pods only then the genotype of the green pea pod is 'GG' (i.e the dominant alleles).
<h2>
TEST CROSS
</h2>
Green pea pods X Yellow pea pods
GG X gg
<u>Gametes:
</u>
G X g
<u> F1 Generation:
</u>
<h2>
Gg
</h2>
2. However if the F1 generation consist of 50% green pea pods and 50% yellow pea pods then the genotype of green pea pods is 'Gg' (both the dominant and recessive alleles).
Green pea pods X Yellow pea pods
Gg X gg
<u>Gametes:
</u>
G g X g
<u>F1 Generation:</u>
<h2> Gg, gg
</h2>
We can relate this to Mendel's Law of segregation and meiosis as
- Both the alleles segregate into seperate gametes (i.e they are sorted independent of one another).
- This segregation is similar to the first division of meiosis in which homologous chromosomes of gene are segregated in daughter nuclei
Intercellular communication involves an electrical charge moving along a cell membrane. These are communicated through electrical charges flowing in between the cells like in the synaptic gaps of neurons.
Explanation:
Cellular communications are essential for the cell to communicate and control the various cellular activities both within and outside the cell.
Explanation:
Intracellular communications are those which take place within a cell. These signaling pathways also referred transduction pathways are triggered by extracellular communication signals which transmit through biochemical interactions to the nucleus. Eg., action of cyclic AMP.
Intercellular communications is the transfer or communication of information in between cells. These signaling pathways are communicated directly and indirectly. . Eg., neuron transmission and hormone secretion
.
