Hello, I figured your question was missing its answers so I went online to find them. Here they are:
No visible cytoplasmic granules are present in ________.
A) basophils
B) monocytes
C) eosinophils
D) neutrophils
Answer:
The correct answer is: B) monocytes.
Explanation:
<u>White blood cells can be divided into granular and agranular.</u> Granular leukocytes (WBC) have granules that contain enzymes in their cytoplasm (the enzymes are used in the immune and inflammatory responses). <u>Agranular leukocytes</u><u> do not have cytoplasmic granules</u>.
<u>The granular leukocytes are 3: basophils, eosinophils, and neutrophils</u>.
<u>The</u><u> agranular</u><u> leukocytes are: </u><u>monocytes</u><u> and lymphocytes</u>.
Monocytes are very large cells with the important function of phagocytosis: this makes them capable of eating pathogens and old blood cells. When arriving at a tissue outside of the blood, they differentiate to macrophages with special features to perform in that tissue. They make up <u>2 to 8 percent of all leukocytes</u>. Monocytes and macrophages are also antigen-presenting cells (APCs): when needed, they can present antigens to other white blood cells in order to mediate the immune response.
Answer: Mosses gametes are produced by mitosis and ferns gamete are also produced by mitosis.
Explanation:
Mosses and ferns are bryophtes, a group of plants that live in moist habitats and lack true leaves and root.
Mitosis is a form of cell division where a single cell divides to produce two identical daughter cells.
During the life cycle of ferns, the diploid sporophyte produce haploid spores by meiosis. The prothallus of the sporophte produce gametes by mitosis.
In mosses, the diploid sporophyte produce spores from a capsule which open when a small structure operculum degenerates. A single spore germinate to form protenama from which the gametes are produced through mitosis.
Regeneration reproduction It grow back regrowth
Answer:
A population is all the organisms that both belong to the same species and live in the same geographical area. A species is defined as a group of organisms capable of interbreeding and producing fertile offspring. There can be multiple populations of one species but a population only consist of one species.
Explanation:
The answer is amyloid beta. They clump together and form plaques. The formed plaque can block signals transmitted from one cell to another cell. In addition, the plaque can cause swelling, especially in the area where it is formed. It can also digest the disabled cells. This type of plaque is very common among patients with Alzheimer's Disease.
