Correct Answer: B. Nitrifying bacteria

Correct Answer: A. disperse the population

Correct Answer: C. Receptacle

Correct Answer: A. it occurs only in young cells

Correct Answer: B. chromatin threads

Correct Answer: B. Maize grain

Correct Answer: A. he volume of the thoracic cavity increases

Correct Answer: A) Autotrophs

Explanation

Photosynthetic organisms are living things that are capable of producing their own food using sunlight, carbon dioxide, and water. These organisms are classified into different groups based on their ability to produce their own food or not. The question is asking for the correct classification of photosynthetic organisms. The options provided are: Option A: Autotrophs (Correct) Option B: Heterotrophs Option C: Herbivorous Option D: Omnivorous Option A, Autotrophs, is the correct answer. Autotrophs are organisms that produce their own food through photosynthesis. They include green plants, algae, and some bacteria. They use the energy from the sun to convert carbon dioxide and water into glucose and oxygen. Option B, Heterotrophs, are organisms that cannot produce their own food and must rely on other organisms for food. They include animals, fungi, and some bacteria. Option C, Herbivorous, describes organisms that eat plants as their primary source of food. Option D, Omnivorous, describes organisms that eat both plants and animals as their primary source of food. In summary, photosynthetic organisms are classified as autotrophs because they are able to produce their own food through photosynthesis.

Correct Answer: D. omnivore

Correct Answer: C) adds nitrates to the soil

Explanation

Thunderstorms can be helpful to plants in several ways. One of the ways is by adding nutrients to the soil. When lightning strikes the ground, it converts atmospheric nitrogen into nitrates, which can be absorbed by the soil and utilized by plants. Therefore, option C is correct. Thunderstorms do not kill pests that attack crops, so option A is incorrect. Similarly, thunderstorms do not add lime to the soil, so option B is incorrect. Although thunderstorms can make rainwater available to plants, this is not the main way in which thunderstorms benefit plants, so option D is also incorrect. It is important to note that while thunderstorms can be beneficial to plants, they can also be harmful, causing damage to crops and even leading to soil erosion.