Correct Answer: B. biology

Correct Answer: B. Raw and peeled

Correct Answer: C. Lichens

Correct Answer: B) a fertilized ovary

Explanation

This question is asking about the definition of a true fruit. The question provides five options, from which you are to select the correct one. The options are: A) fertilized ovary and other floral parts, B) a fertilized ovary, C) a fertilized ovary and calyx, D) a fertilized and fleshy receptacle, and E) an unfertilized ovary and other floral parts. A true fruit is a fruit that develops from a fertilized ovary. This means that after a flower has been pollinated, the ovary of the flower will develop into a fruit. The fertilized ovary will contain the seeds of the plant. The other parts of the flower, such as the petals, sepals, and stamens, may or may not be present in the mature fruit. Option B, a fertilized ovary, is the correct answer because a true fruit is formed from a fertilized ovary alone, without the other floral parts. Option A, fertilized ovary and other floral parts, is incorrect because a true fruit does not require other floral parts to form. Option C, a fertilized ovary and calyx, is also incorrect because the calyx is a part of the flower, not the fruit. Option D, a fertilized and fleshy receptacle, is incorrect because a fruit formed from a fleshy receptacle, such as an apple, is not a true fruit. Option E, an unfertilized ovary and other floral parts, is incorrect because an unfertilized ovary cannot form a true fruit. In summary, the correct answer to this question is Option B, a true fruit is formed from a fertilized ovary

Correct Answer: A) Detoxification

Explanation

The question is asking which of the following options is NOT a function of the mammalian skin. The options are Detoxification, Excretion, Production of Vitamin D, Protection, and Temperature Control. The correct answer is Option A, Detoxification. This means that the mammalian skin does not play a role in getting rid of toxins from the body. The skin is the largest organ in the body and has several important functions. One of these is protection, which involves preventing harmful substances from entering the body. Another function is temperature control, which involves regulating the body's temperature to maintain homeostasis. The skin also produces Vitamin D when exposed to sunlight, which is important for the absorption of calcium and the maintenance of healthy bones. Additionally, the skin excretes sweat, which helps to regulate body temperature and remove waste products from the body. In summary, the mammalian skin has several important functions, including protection, temperature control, production of Vitamin D, and excretion of sweat. It does not, however, play a role in detoxification.

Correct Answer: B. fermentation

Explanation

(a) (i) Forms in which living cells exist

• Single/free-living
• Colony/colonial
• Filamentous/filament
• Part of a living organism.

(ii) Example

• Single/free-living -Amoeba/Chlamydomonas/Paramecium/Euglena
• Colony/colonial -Eudorina/Pandorinallolvox/Sponges
• Filamentous/filament - Spirogyra/Chladophora/Ulothrix/Zygnema/Oedogonium
• Part of living organism - cheek cell/onion cell/epidermal cell/parenchyma cell.

(b) Diagram of a typical plant cell

(c) (i) Differences between a plant cell and an animal cell

(ii) Similarities in plant cell and animal cell;

They both have cytoplasm; nucleus; vacuole; mitochondrion; Golgi body; (smooth/rough) endoplasmic reticulum; cell membrane/plasma membrane; ribosomes

Correct Answer: B. mantle

Correct Answer: A. converging the light rays before they enter the eye

Correct Answer: C. chlamydomonas