Correct Answer: A. Glucose

Correct Answer: D) blood

Explanation

In vertebrates, dissolved nutrients are transported in the body through a medium called blood. Blood is a fluid that circulates throughout the body in a closed system of blood vessels. It is made up of different components, including red blood cells, white blood cells, platelets, and plasma. Plasma is the liquid part of the blood and is responsible for transporting nutrients, hormones, and waste products. It also helps to regulate body temperature and maintain the pH balance of the body. Plasma contains many dissolved substances, including glucose, amino acids, lipids, and minerals, which are transported to different parts of the body where they are needed. Red blood cells, on the other hand, contain a protein called hemoglobin, which binds to oxygen and carries it to the body tissues. This process is called oxygen transport. In addition to transporting oxygen, red blood cells also help to remove carbon dioxide from the body through a process called carbon dioxide transport. In summary, blood is the medium through which dissolved nutrients are transported in the body of vertebrates. It plays a vital role in maintaining the body's homeostasis and ensuring that all the body's cells receive the nutrients and oxygen they need to function correctly.

Correct Answer: B. 1:2:1

Explanation

(a)(1)Producer: This is a green plant or autotroph which traps the energy of sunlight, radiant energy or solar energy and converts it to chemical energy in order to form organic compounds and photosynthesis using CO2 and water or simple inorganic substances as raw materials. It forms the starting point or origin of every food chain.

(ii)Consumer: This is an organism which derives its nutrients, energy and food from eating plants directly or indirectly. In other words, it is an organism which depends on other organisms for food, energy and nutrients. All consumers are heterotrophs and they lack chlorophyll. They are either animals that derive their nutrients, food and energy from eating plants directly (e.g. cow and sheep) and are called herbivores or primary consumers or they are other animals (e.g. cats, hyenas, lions and leopards) that eat herbivores and thus derive energy indirectly from the producers. These are called carnivores or secondary consumers.

(iii)Community: This refers to a group of plants and animals that occupy a given area and are adaptable to the conditions of their environment. They are interdependent i.e depend on one another and can continue to live successfully and reproduce new offspring.

(iv)Decomposer: Decomposers are fungus or bacteria which lives saprophytically or feed on dead remains of plants, animals and organisms leading to or resulting in recycling of nutrients by breaking down organic matters to produce soluble nutrients which are absorbed by plants.

(b)(i) Characteristics of trees in Tropical Rain Forest:

(a) The trees are predominantly woody.

(b) They are stratified.

(c) Some are called "emergents, ' and attain a height of over 60 metres.

(d) They have straight columnar trunks with branches only at the crown.

(e) They have buttresses.

(f) They have thin smooth barks without conspicuous fissures or lenticels.

(g) They usually have dark green leaves that are broad,large and leathery.

(h) The leaves are with entire margin, having drip tips or extended tips.

(i) The trees form canopies at the crown and cast dense shade on the underneath.

(j) They have cauliflory or flowers attached directly to trunks and branches - not on inflorescence stalks.

(k) Some of the trees have stilt roots.

(ii) Characteristics of trees and shrubs of the Savanna:

(a) The trees and shrubs are scattered and woody.

(b) They have narrow leaves and few stomata.

(c) Their leaves have thick cuticle.

(d) The trees are not usually very tall (10-50 metres).

(e) They have gnarled, twisted or crooked trunks with fissured, fire-resistant or corky barks

(g) Most of the trees are deciduous, they shed leaves during dry season.

(h) They also have long taproot with extensive root system.

Correct Answer: A) System

Explanation

In Biology, animals are organized into different levels of organization. These levels range from the simplest to the most complex. The question is asking for the highest level of organization in animals. The options given are System, Tissue, Organ, Cellular, and Protoplasmic. System, which is Option A, is the correct answer. The System level is the highest level of organization in animals. It is the level where different organs work together to perform a specific function. For example, the digestive system is made up of different organs such as the stomach, liver, and intestines, which work together to break down and absorb food. Tissue, which is Option B, is the level below the System level. Tissues are groups of cells with similar structures and functions. Examples of tissues include muscle, nerve, and connective tissue. Organ, which is Option C, is the level above the Tissue level. Organs are made up of different tissues that work together to perform a specific function. Examples of organs include the heart, lungs, and brain. Cellular, which is Option D, is the level below the Tissue level. It refers to individual cells, which are the basic unit of life. Protoplasmic, which is Option E, is the lowest level of organization in animals. It refers to organisms that are made up of a single cell, such as bacteria and protozoa. In summary, the answer to the question is Option A, System, as it is the highest level of organization in animals. For more information, please see the recommended textbooks.

Correct Answer: D. symbiosis

Correct Answer: D. stimulus

Correct Answer: D. vertebrartarial canal

Correct Answer: D. Space, food and mates

Correct Answer: A. The average arm length of sloths in this population will increase.

Explanation

The question describes a particular trait