Correct Answer: C) Looping

Explanation

Hydra is a freshwater animal that belongs to the phylum Cnidaria. It is a tiny, tube-like creature that usually attaches itself to a solid surface and feeds on small organisms, such as plankton. The question is asking which of the following movements can be seen in hydra. Option A, swimming, is not a movement that is typically seen in hydra. While hydra is capable of movement, it does not swim like other aquatic animals. Option B, gliding, is also not a movement that is usually seen in hydra. Hydra moves by looping, which is different from gliding. Option C, looping, is the correct option. Hydra moves by looping, which means that it contracts its muscles and bends its body into a loop shape, then extends and attaches itself to a new surface. This movement allows hydra to move slowly and efficiently in its aquatic environment. Option D, crawling, is not a movement that is usually seen in hydra. Hydra does not have limbs or a body structure that allows it to crawl. Option E, swaying, is not a movement that is typically seen in hydra. Hydra moves by looping, not swaying. In summary, the correct movement that is seen in hydra is looping (Option C). To learn more about hydra and its movements, please read the relevant sections of the recommended textbooks.

Correct Answer: A. be idolatrous

Correct Answer: A. Forte.

Correct Answer: A. Intervention of the storm in the war

Correct Answer: A. an unstressed syllable following a stressed syllable

Explanation

x = \(\begin{pmatrix} -4 \\ 3 \end{pmatrix}\) and y= \(\begin{pmatrix} -9 \\ 15 \end{pmatrix}\)

Changing x and y to the form xi+yj

we have x= -4i + 3j and y = -9i - 15j

using cosØ = \(\frac{xy}{|x|ly|}\)

where Ø is the angle between x and y

xy = (-4i+3j) (-9i - 15j)

-36 + 60 x 0 - 27 x 0- 45 = -81

|x| = √(4\(^2\) +3\(^2\)) =√(16 +9) = √25 = 5

|y| = √(-9)\(^2\) + (-15)\(^2\) = √(81 +225) = √306

cosØ =\(\frac{-81}{5√306}\)

= \(\frac{-9√306}{170}\)

\(\frac{17.49 * 9}{170}\)

Ø = cos\(^{-1}\)(-0.1029);

Ø = 95.91°

Ø = 96°

Correct Answer: A. female Anopheles mosquitoes

Correct Answer: B. That patience is a virtue

Explanation

Principles of the Organisation of African Unity (OAU).

(i) No interference whatsoever, in the internal affairs of members states.

(ii) Unreserved condemnation of subversive activities among members states.

(iii) Disputes among member states should be settled through negotiation, mediation, conciliation or arbitration.

(iv)Absolute dedication to the emancipation of African territories still under colonial rule.

(v) Every member state has the right of independent existence irrespective of size. Its territory must be free from external attack or annexation by any other member.

(vi) The policy of non-alignment to all blocs should be strictly pursued.

(vii) All member states are equal; no state would be too big to dominate others and no state would be too small to be recognized.

Correct Answer: B. pressure group