Correct Answer: D. 46

Explanation

A gamete will have n=23 chromosomes while a somatic cell is going to have a diploid number of cells, or 2n=46. This is the case because somatic cells are going to receive a copy of chromosomes from each parent, so 23 from the mother and 23 form the father to give 46 total chromosomes. If you are ever given the haploid number and asked for the diploid number, then you can simply double the haploid number.

Correct Answer: B) locomotion

Explanation

Cilia is hair-like material used for movement/locomotion in paramecium.

Correct Answer: B) primary consumers

Explanation

Herbivores which feed directly on plants are known as primary consumers.

Correct Answer: D. 200000

Correct Answer: B) is the outermost layer of the cortex

Explanation

This question is asking which statement about the piliferous layer of a root is false. The piliferous layer is located in the outermost part of the root and is responsible for absorbing water and nutrients from the soil. Option A states that the piliferous layer has a thin cuticle and this statement is correct. The cuticle is a waxy layer that covers the epidermis of the plant to reduce water loss, but in roots, the cuticle is thin to allow for water absorption. Option B states that the piliferous layer is the outermost layer of the cortex, and this statement is also correct. The cortex is the region of the root between the epidermis and the stele, and the piliferous layer is the outermost layer of the cortex. Option C states that the piliferous layer may bear root hairs, and this statement is correct. Root hairs are extensions of the epidermal cells that increase the surface area of the root for water and nutrient absorption. Option D states that the piliferous layer is replaced by cork in old roots, and this statement is false. The piliferous layer is not replaced by cork in old roots, but rather by other tissues such as the endodermis. Therefore, the false statement about the piliferous layer of a root is Option D

Correct Answer: C. G1, S, and G2

Explanation

During interphase, you have G1, or gap 1, in which the cell grows. Then you have S phase, in which the cell synthesizes its DNA. Finally, you have G2, or gap 2, in which the cell continues to grow again.

Correct Answer: A. stamens

Explanation

The androecium is the male reproductive part of a flowering plant, and it is composed of stamens. Each stamen consists of two main parts: Filament and Anther

Correct Answer: C) sessile

Explanation

Most animals share common features such as being multicellular and heterotrophic. However, some animals may have unique characteristics that set them apart from the majority. This Biology question is asking which of the following features is not common in most animals. The correct answer is Option C: sessile. Being sessile means an animal is fixed in place and cannot move around. This feature is not typical of most animals since they are usually able to move from one place to another. Examples of sessile animals include sponges and barnacles, which attach themselves to surfaces and cannot move. Some animals may be sessile only during certain stages of their life cycle, such as coral polyps which are sessile as adults but can move as larvae. It is important to note that while sessile animals may not be typical of most animals, they still play important ecological roles in their respective environments. In summary, the feature that is not typical of most animals is being sessile.

Correct Answer: D. Microbes

Correct Answer: C. Denitrifying bacterium