Answer:
True
Explanation:
Bacteria generate toxins which can be classified as either exotoxins or endotoxins. Exotoxins are generated and actively secreted; endotoxins remain part of the bacteria. Usually, an endotoxin is part of the bacterial outer membrane, and it is not released until the bacterium is killed by the immune system.Most viral infections eventually result in the death of the host cell. The causes of death include cell lysis, alterations to the cell's surface membrane and various modes of programmed cell death. Some viruses cause no apparent changes to the infected cell.
Cell membrane is made up of Lipid Bilayer which are fluid in nature , means they move continuosly , due to this fluid nature they are selectively permeable to compounds.
The correct answer is B. Secondary succession
Explanation:
In ecosystems, secondary succession occurs as certain events such as fires cause vegetation to temporarily disappear from one area. However, as soil is not affected negatively, vegetation grows again after some time, which means there is a secondary growth of vegetation and changes in the structure of an ecological community.
This term applies to the situation in the 1988 fires in Yellowstone Park because the fire destroyed the vegetation in the zone temporarily, but as the soil was intact after years or decades the vegetation will grow again, although this might implied changes in the ecosystem.
Nutrients entering a cell through the cell membrane Removing a phosphate group from an ATP molecule Building sugar or starch molecules for long-term energy storage Adding an additional phosphate group to an ADP molecule.
Answer:
Connective tissue that are found in muscle are of 3 types-Endomysium,Perimysium and epimysium.
Explanation:
Endomysium is called as areolar connective tissue that have nerve and capillaries.
It attaches with epimysium and perimysium and form collagen fibers of tendons.
Perimysium is a sheath of connective tissue that transmit lateral contractile movement.
Epimysium is the layer that is formed by irregular connective tissue .
This layer covers the muscle and provide protection from friction against muscle and bone.
This layer contain fascia and other connective tissue.
