Explanation

(a) the characteristic features of the vegetation of tropical rain forest are as follows:

(i)vegetation divided into 5 layers/strata.

(ii) ground layer of non-woody oviduct plants/i ichens/fernsigrasses.

(iii) lower layer of shade-loving dwarf/tree/palms/ shrubs.

(iv) middle layer of small trees with funnel i elongated narrow crowns.

(v) upper layer oviduct ovary of tall trees whose crowns form a continuous canopy.

(vi) the emergent trees come uterus above the canopy at intervals,

(vii) the forest is very rich is species.

(viii) trees cervix have straight/slender trunks with branches mostly near the top.

(ix) most of the trees are evergreen.

(x) most of the trees have vagina buttress and prop roots that support tall stems.

(xi) the leaves of the trees tend to be broad.

(xii) the flowers of these trees vulva are usually small.

(xiii) epiphytes, climbers and parasitic plants are numerous and form close associations with the dominant plants.

(xiv) epiphytes have adaptations for storing water and absorbing moisture from the air.

(b) types of savannah and area(s) or town(s) found:

guinea savannah (h) - kaduna, florin, bida. sahel savannah (h) - maiduguri .

sudan savannah (h) - kano, borno, sokoto, gongola, bauchi.

(c)(i) the ways by which animals in arid habitat are adapted to droughts and high temperature are:

(1) use of metabolic water.

(2) production of concentrated water/urine.

(3) living in burrows/hibernation.

(4)thick scales/ skin to prevent water loss by evaporation.

(ii) high temperature:

(1) seeking shade to keep cool.

(2) nocturnal life.

(3) living in burrows/underground tunnels where temperature is low.

(4) restricting activities to cooler periods.

Correct Answer: A. placed slightly above soil level

Correct Answer: D) Cell wall

Explanation

Animal cells are a type of cells that make up the tissues and organs of animals. They are different from plant cells in that they do not have a cell wall. The cell wall is a rigid layer that surrounds the cell membrane and provides support and protection to the cell. Therefore, option D, Cell wall is the correct answer to this question. Animal cells do have a cell membrane, which is a thin layer that surrounds the cell and controls what enters and leaves the cell. They also have a nucleus, which is the control center of the cell that contains the genetic material. The nucleolus is a structure within the nucleus that helps in the synthesis of ribosomes. Animal cells also have other organelles such as the Golgi body, which is responsible for processing and packaging proteins, and the food vacuole, which stores and digests food. It is important for Biology students to understand the structure and function of different organelles in the cell as this lays the foundation for understanding how cells work and how they contribute to the functioning of larger biological systems.

Correct Answer: D. osmosis

Correct Answer: B. chromatophores

Correct Answer: A. Adrenalin

Correct Answer: C. Group AB is the universal recipient

Correct Answer: B. organelles

Correct Answer: C. liver

Correct Answer: B) hook

Explanation

This question is asking about how to distinguish between the two species of human tapeworm. The options given are Scolex, hook, head, and sucker. To answer this question, it is important to understand what a tapeworm is. A tapeworm is a type of parasitic flatworm that lives in the intestines of animals, including humans. The tapeworm has a long, flat body made up of segments called proglottids. Each proglottid contains reproductive organs, which allow the tapeworm to produce eggs that can be passed out of the host's body in feces. Now, to distinguish between the two species of human tapeworm, we need to look at the given options. Option A, Scolex, refers to the head of the tapeworm, which is used to attach to the host's intestinal wall. Option C, head, is the same as Scolex and is not a useful distinguishing factor. Option D, sucker, refers to the structures on the tapeworm's body that help it attach to the host's intestinal wall. Option B, hook, is the correct answer. The two species of human tapeworm can be distinguished by the presence or absence of hooks on their scolex. One species has hooks while the other does not. These hooks are used to anchor the tapeworm to the intestinal wall and help it avoid being carried out of the host's body in feces. In summary, the correct way to distinguish between the two species of human tapeworm is to look for the presence or absence of hooks on their scolex. Option B, hook, is the correct answer to this question.