C. BAT can detect sound at a frequency of 67,000 Hz. Its frequency range is 2,000 - 110,000 Hz67 - 45,000 Hz.
An elephant's frequency range is 16-12,000 Hz.
A tree frog's frequency range is 50 - 4,000 Hz
A dog's frequency range is 67 - 45,000.
Bats have very sensitive hearing to cope with their nocturnal activities. Since the feed at night time, they have difficulty in seeing their prey.
Bats navigate and locate their prey using echolocation. Echolocation is a method where bats produce a very loud sound and assess the sound's echo. The echo has two types of frequency. Constant frequency, used to detect object, and Frequency modulated, used to assess the distance of the object. Bats then know the presence of its prey as well as its location.
Chimeric mice are generated where approximately 50% of the cells in the animal are genetically MHC class I-deficient. The other 50% are deficient for the herpes virus receptor, HVEM, but do express MHC class I molecules. When these mice are infected with herpesvirus by intraperitoneal injection, a robust virus-specific CD8 T cell response is detected at day 7 post-infection in the spleens of the infected mice.
Chimeric mice are generated where approximately 50% of the cells in the animal are genetically MHC class I-deficient - Immunobiology
: a branch of biology concerned with the physiological reactions characteristic of the immune state
To learn more about immunobiology
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Answer:
The independent variables is Texting speed in words.
Dependent variable is minutes.
Explanation:
Independent variable is a variable that can stand on it own and does not depend on other variable to change.
Minutes is independent variable, it can stand in it's own.
Dependent variable is a variable that depend on another variable. Texting speed is dependent variable because it's depend on time to change or stand.
Since enzymes function as organic catalysts, a cell would not be able achieve homeostasis if the required enzymes were not present.
Polypeptide chains undergo some modifications before they become fully functional. Some of these modifications include: proteolytic cleavage, lipidation and glycosylation. Proteolytic cleavage refers to the removal of some amino acids from a polypeptide chain by proteases in order for the protein to become active. An example of a substance that is modified through this process is insulin.
