Answer:
Sponges come under phylum Porifera. They exhibit cellular levels of body organization and are inactive in nature. The sponges are known to generate and discharge some kind of toxins. The discharging of the toxins may perform various activities like shielding themselves against the parasites and predators. However, these toxins are also considered to harm other sponges.
This mechanism of sponges makes a predator think two times before attacking it. The sponge will generate toxins, which could disorder the metabolism of any species that try to eat them. However, the majority of the predators possess the tendency to detect the toxin via their sense of smell, and thus, helps them in avoiding the sponges.
b. 1.00 g/cm3
c. 11.4 g/cm3
d. 19.3 g/cm3
Answer: /;
Explanation:
B.Cystic Fibrosis
C.Huntington's Disease
D.Sickle Cell Disease
Answer:
The correct answer would be parts of atmosphere, hydrosphere, and lithosphere.
Biosphere refers to the area of the earth where life exists. It ranges from the deepest sea to the high mountain tops.
On planet earth, life can exist on land or soil (lithosphere), water (hydrosphere) and in the air (atmosphere).
Thus, biosphere overlaps all these spheres.
Answer:
The presence of DNA, RNA, and membrane components suggest that the cell was destroyed during the process of secretion. This is consistent with a holocrine type of secretion.
Explanation:
Holocrine is a term used to classify the mode of secretion in exocrine glands in the study of histology. Holocrine secretions are produced in the cytoplasm of the cell and released by the rupture of the plasma membrane, which destroys the cell and results in the secretion of the product into the lumen. Skin glands in mammals are classified into holocrine (e.g., sebaceous glands), and merocrine (e.g., sweat glands). The sub mandibular or chin gland of rabbits is a modified sweat gland (apocrine; Lyne et al., 1964) developed from the external root sheath of the hair follicle and attached to it
The secretion described is likely an 'apocrine secretion', a type of glandular secretion involving the release of cytoplasmic materials. This process includes the release of DNA, RNA and membrane components like phospholipids.
The secretion you've described is most likely an instance of a cell's apocrine secretion, which is a form of glandular secretion that involves the release of cytoplasmic materials. In this type of secretion, parts of a cell's cytoplasm (which contains DNA and RNA) are pinched off into the secretory vesicle, along with membrane components like phospholipids. Once the vesicle reaches the cell surface, it fuses with the plasma membrane and the contents are released outside the cell. This type of secretion is common in mammary glands and some sweat glands in humans.
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