Question

ПОЖАЛУЙСТА ПОМОГИТЕ БИОЛОГИЯ 1. Функцию переваривания у гидры выполняют клетки A) стрекательные B) промежуточные C) кожно-мускульные D) пищеварительные E) нервные 2. Черный цвет шерсти овец, доминирует над серым. Определите генотипы и фенотипы гибридов A) Аа, серые B) АА, черные C) аа, серые D) АА, серые E) Аа, черные 3. Фенотип A) горанизмы, состоящие из однородных рецессивных аллелей B) организмы, состоящие из разных аллелей C) организмы, состоящие из однородных доминантных аллелей D) внешнее проявление генетических признаков E) совокупность генов организма 4. Кожица, пробка, эпидермис-это ткань (несколько ответов) A) покровная B) образовательная C) опорная D) выделительная E) проводящая F) механическая G) фотосинтезирующая H) запасающая 5. Характерные особенности образовательной ткани(несколько ответов) A) за счет деление клеток растение растет B) у них тонкие оболочки C) выполняет функцию каркаса D) обеспечивает газообмен и испарение E) защищает растение F) находится на верхушке побега G) содержит хлоропласты H) имеет пробку

Answer 1

1 C
2 E (B, C, D - не гибриды, в А неверно определена доминанта)
3 D
4 AD
5 ABFG

Answer 2

Function of digestion in Hydra:

The cells responsible for digestion in Hydra are gastrodermal cells, which line the inner surface of the body cavity. These cells secrete digestive enzymes and absorb nutrients from the food particles. Therefore, the correct answer is D) digestive cells [[1]].

Genotypes and phenotypes of hybrids with black and gray wool color:

When black wool color dominates over gray, the genotypes and phenotypes of the hybrids can be determined as follows: - A) Aa, gray: This genotype represents a hybrid with one dominant allele (A) and one recessive allele (a), resulting in a gray phenotype. - B) AA, black: This genotype represents a hybrid with two dominant alleles (AA), resulting in a black phenotype. - C) aa, gray: This genotype represents a hybrid with two recessive alleles (aa), resulting in a gray phenotype. - D) AA, black: This genotype represents a hybrid with two dominant alleles (AA), resulting in a black phenotype. - E) Aa, black: This genotype represents a hybrid with one dominant allele (A) and one recessive allele (a), resulting in a black phenotype.

Therefore, the correct answers are A) Aa, gray and B) AA, black [[2]].

Phenotype:

The term "phenotype" refers to the observable characteristics or traits of an organism. It is the result of the interaction between an organism's genotype (genetic makeup) and the environment. Phenotypes can be influenced by various factors, including gene expression, interactions between genes, and environmental conditions. Therefore, the correct answer is D) the external manifestation of genetic traits [[3]].

Tissues: epidermis, cork, and cortex:

The tissues mentioned, such as epidermis, cork, and cortex, are all types of protective tissues found in plants. Here are their specific functions: - A) Epidermis: The epidermis is the outermost layer of cells in plants. It acts as a protective covering, preventing water loss, regulating gas exchange, and providing defense against pathogens and physical damage. - B) Cork: Cork is a type of protective tissue found in the bark of woody plants. It provides insulation, protects against water loss, and helps prevent damage from external factors. - C) Cortex: The cortex is a region of tissue found between the epidermis and the vascular tissues in roots and stems. It provides support, stores nutrients, and facilitates the movement of water and minerals.

Therefore, the correct answers are A) protective, B) protective, and C) supportive [[4]].

Characteristics of meristematic tissue:

Meristematic tissue is a type of plant tissue responsible for growth and development. Some characteristic features of meristematic tissue include: - A) Cell division: Meristematic cells have the ability to divide rapidly, allowing for continuous growth and the formation of new cells. - C) Framework function: Meristematic tissue provides a framework for the growth of plant organs, such as roots, stems, and leaves. - D) Gas exchange and transpiration: Meristematic tissue does not directly participate in gas exchange or transpiration. These functions are primarily carried out by specialized tissues like the epidermis and stomata. - E) Protection: Meristematic tissue does not have a protective function. Protective tissues, such as the epidermis and cork, are responsible for protecting the plant from external factors.

Therefore, the correct answers are A) cell division and C) framework function [[5]].

I hope this helps! Let me know if you have any further questions.