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Alleles contribute to the organism's phenotype, which is the outward appearance of the organism. Some alleles are dominant or recessive. When an organism is heterozygous at a specific locus and carries one dominant and one recessive allele, the organism will express the dominant phenotype

What are the major similarities and differences between mitosis and meiosis? Mitosis produces two cells from one parent using one division event. But meiosis produces four new child cells with two divisions, each of which has half the genetic material of its parent. Mitosis takes place all over the body, while meiosis only takes place in the sex organs and produces sex cells

The sex of a baby is determined by its chromosome make-up at conception.

Soldier termites have distinctively shaped heads and are typically bigger than workers. Their protruding mandibles help them protect their colonies. Soldiers have elongated bodies and are pale red, light brown, or white.

In evolutionary biology, convergent evolution is defined as the process whereby distantly related organisms independently evolve similar traits to adapt to similar necessities.

The expected genotype ratio when two heterozygotes are crossed is 1 (homozygous dominant) : 2 (heterozygous) : 1 (homozygous recessive).

No expanded working has been attached for this question yet. The verified answer is Option A.

No expanded working has been attached for this question yet. The verified answer is Option A.

xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support. Phloem is a living tissue in vascular plants which conducts the soluble organic compounds synthesized during photosynthesis downwards from the leaves.

During photosynthesis, water is absorbed by the roots of the plant and transported upwards through the xylem to the leaves. In the leaves, water is used in the photosynthetic process to produce glucose and oxygen. From the options, option D is correct because oxygen is produced as by-product.

No expanded working has been attached for this question yet. The verified answer is Option D.

Birds of prey, also known as raptors, have feet and beaks that are adapted for grasping, killing, and tearing flesh. Raptors have strong feet for striking and grasping prey. They have sharp, curved claws on their toes for gripping prey and puncturing skin. Raptors have sharp, hooked beaks for piercing, plucking, and pulling apart prey.

- Like frogs, most toads lay their fertilized eggs in water, where they hatch into tadpoles before developing into adult toads. These amphibians need a safe, undisturbed body of water to lay their eggs in. However, a few species breed on land. - the mother alligator typically lays about 35 eggs in a nest made of mud, sticks and other plant matter. - Rabbits sometimes dig a burrow in which to give birth

Embryos of vertebrates can be used to show evolutionary trend: - Fishes → Amphibians → Reptiles → Birds → Mammals

(a) Types of fruit: C- Berry/hesperidium. D-Capsule. E-Legume/Pod. F-Cypsela. G Berry/hesperidium. H-Drupe. (ii) Types of placentation with reasons: Specimen C Pepper - Axile - Ovules are attached to central placenta. E Beans pod -Marginal - Ovules are arranged in a single row at the margin of an ovary. G Orange-Axile- Ovules are attached to central placenta. (b)(i) Modes of dispersal: C/ Pepper - Animal/Man D/Castor oil Explosive mechanism. E/ Bean pod - Explosive mechanism. F/ Tridax -Wind G/ Orange -Animal/Man. H/Coconut- Water/Man. (ii) Dispersal of specimen D/Castor oil fruit: - The fruit matures ripens and dries up. Tension is set up in its fruit wall. - Due to uneven drying of the fruit wall/pericarp dries unevenly. - Fruit splits with explosion along weak lines. - Seeds are scattered. (c) Differences between Specimens G and H Specimens G/O Orange: Epicarp and mesocarp fused; Endocarp is succulent/fleshly/soft; Many seeds; Many chambers in fruit; Mesocarp is membranous/leathery; Axile placentation; Specimen H/Coconut: Epicarp and mesocarp separate; Endocarp is hard/stony; One seed; Only one chamber in fruit; Mesocarp fibrous; Parietal placentation.