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I - Pincers(maxillae) II - Head III - Thorax IV - Abdomen (See diagram below)

Jean-Baptiste Lamarck's theory of evolution, also known as Lamarckism, is based on the idea that organisms can pass on physical characteristics they acquire during their lifetime to their offspring. This is also known as the inheritance of acquired characteristics or soft inheritance.

Somatic cells are diploid, meaning they have two sets of chromosomes, one from the mother and one from the father. During mitosis, somatic cells replicate their DNA and divide to produce two daughter cells that each receive a complete copy of the genome. If a somatic cell has 8 chromosomes, then the gamete will have 4 chromosomes. This is because gametes have half the number of chromosomes as somatic cells.

Since offsprings for F\(_1\) are AA AS AS SS Phenotypic ratio : 3: 1 Genotypic ratio : 1 AA : 2 AS : 1 SS ⇒ 1: 2: 1

The human vertebral column, also known as the spinal column or backbone, has 33 vertebrae: Cervical: 7 vertebrae (neck region) Thoracic: 12 vertebrae (Chest cavity) Lumbar: 5 vertebrae (in the lower back, between the thoracic vertebrae and the pelvis) Sacral: 5 vertebrae that fuse together to form the sacrum (at the base of the spine) Caudal: 4 vertebrae that fuse together to form the coccyx (in the tail region, posterior to the anus)

Swarming is a coordinated collective motion that can be seen in both animate and inanimate systems. For example, when ants get crowded, they coordinate waves of activity every 20 minutes. Social insects like ants and honey bees, as well as non-social insects like flies, moths, cockroaches, and locusts. Termites swarm after their original colony has reached a certain capacity level and is ready to expand.

Loam soil is considered the "friendliest" soil to cultivate. It's also relatively resistant to drought, warms up early in the spring, and is moderately easy to work. Loamy soil has moderate porosity. Loam is a mixture of sand, silt, and clay in roughly equal amounts, which results in a soil that's airy and not too dry. Sandy soil :Highly porous because it's made up of large granules and sometimes pebbles. Sandy soil loses moisture easily. Clayey soil: Very low porosity because it's made up of very fine particles that are tightly packed together. Clayey soil is sticky and heavy.

Cones in the retina of the eye are photoreceptor cells, which are responsible for colour vision, visual acuity, and daylight vision.

The ovule, which is located inside the ovary of a flower, develops into a seed after fertilization. After fertilization, the ovary grows and matures into a fruit, which encloses the seeds.

Cell Sap is a fluid transported in xylem cells (vessel elements or tracheids) or phloem sieve tube elements of a plant. These cells transport water and nutrients throughout the plant.

Syphilis is a bacterial sexually transmitted infection (STI). Measles is caused by the measles virus, a highly contagious RNA virus.It spreads through the air when an infected person breathes, coughs, or sneezes. It can also spread through direct contact with secretions. Cholera is a bacterial infection of the intestines caused by the bacterium Vibrio cholerae. Typhoid fever is a bacterial infection that can be life-threatening if left untreated. It's caused by the Salmonella Typhi bacteria, which is related to the bacteria that cause salmonella food poisoning.

The experiment is set up to determine the presence of starch. When Iodine is added to the parboiled leaf, a blue-black or brown colour is observed. This indicates the presence of starch and vice versa.

Arthropods and most molluscs have an open circulatory system. In an open circulatory system, blood is pumped from the heart into a body cavity, called a hemocoel, instead of being enclosed in blood vessels. The blood, called hemolymph, mixes with interstitial fluid and circulates around the organs as the animal moves. The blood returns to the heart through small pores called ostia. A closed circulatory system is a system where blood flows through a network of vessels, or tubes, that are connected to each other. The heart pumps blood through the system in a continuous loop. Many animals have a closed circulatory system, including all mammals, birds, fish, reptiles, amphibians, and some invertebrates. A single circulatory system is a type of circulatory system where blood passes through the heart only once during each complete circuit of the body, meaning it only travels through the heart one time before returning to it. e.g fishes, invertebrates and some amphibians etc A double circulatory system is a system where blood passes through the heart twice during each circuit of the body. This system is found in mammals, including humans.

The main excretory products of plants during metabolism are carbon dioxide, excess water, and nitrogenous compounds. Plants produce carbon dioxide as a metabolic waste product during respiration, while oxygen is a metabolic waste product from photosynthesis. Excretion of gaseous waste in plants takes place through stomatal pores on leaves. Oxygen released during photosynthesis is used for respiration while carbon dioxide released during respiration is used for photosynthesis.

The oviduct is a muscular, J-shaped tube that carries eggs from the ovaries to the uterus. It's a vital part of the female reproductive system, and fertilization typically occurs in the oviduct. The tube that connects the ovary to the uterus is called the fallopian tube. There are two fallopian tubes, one on each side of the uterus. It is also called the oviduct. The placenta is an organ that forms in the womb, also called the uterus, during pregnancy. The placenta is connected to a developing baby by a tube-like structure called the umbilical cord. Through the umbilical cord, the placenta provides oxygen and nutrients to a developing baby.