Answer:
The stigma, a female structure which collects pollen and passes it to the ovary
Explanation:
<u>The structure represented by the letter A in the diagram is the stigma.</u>
The <u>stigma of a flower represents part of the female reproductive structure</u>. The surface of a mature stigma is sticky and as such, it is able to attract pollen grains from the anther. A pollen that lands on the stigma germinates and its pollen tube grows through the style of the stigma down to the ovule where one of the sperm cells of the pollen fertilizes the egg cell of the ovule to form a diploid zygote and the other sperm cell fuses with the polar nuclei of the ovary to form a triploid cell that eventually becomes the endosperm.
<em>The sepal and the petal are labeled as D and C in the diagram respectively while the stamen is made up of B and H.</em>
Answer:
The correct answer will be option- B.
Explanation:
Synovial fluid is a clear slippery fluid which is present in the synovial cavity.
The synovial fluid helps the nourishment as it provides nutrients to the and oxygen to the hyaline cartilage of the bones as well as the lubrication of the cartilage surfaces due to the viscous nature like oil which lubricates the piston.
This smooth surface facilitates the smooth and painless movements between the bones, therefore, the Option-B is the correct answer.
Answer:
echolocation
it sends waves for them to see around them.
Explanation:
Answer:
Determine the parental genotypes. You can use any letter you like but select one that has a clearly different lower case, for example: Aa, Bb, Dd.
Split the alleles for each parent and add them into your Punnett square around the edges.
Work out the new possible genetic combinations inside the Punnett square.
Explanation:
Answer:
d. furcula
Explanation:
Furcula
Furcula is a synapomorphy linking dinosaurs and birds .
The furcula is the structure formed by midline fusion of clavicles and this very element is unique in the theropods as well . And is the most crucial for understanding the link between birds and the theropods .
The first suggestion was by Huxley in 1868 , and in 1870 , the key component of the debate is the presence of Frucula .
