The correct option is (a) having no backbone.
Invertebrates are the category of organisms that lack backbone. They have some soft tissues and because of this their body is soft as compared to that of vertebrates. Example: jellyfish and sponges. Some of the invertebrates have outer covering which is very hard called as exoskeleton. This helps them to protect from outer injuries and harsh conditions. Example: cockroach, spiders, etc.
The question refers to various stress reduction techniques which have been shown in research to have numerous benefits for both physical and psychological health. These techniques include exercise (both short and long duration), social support networks, and interventions involving positive psychology.
The subject of the question is referring to various stress reduction techniques. Research has shown that these techniques provide numerous benefits for both physical and psychological health. These techniques cover a wide array, including exercise, social support networks, and positive psychology tactics.
Exercise, both of long and short duration, has been proven to be beneficial for physical and mental health (Salmon, 2001). It is found that physically fit individuals are more resistant to the adverse effects of stress and recover more quickly.
Social support networks too have favorable impacts on health outcomes. They offer several beneficial physiological effects in stressful situations and lead to better health behaviors.
Lastly, interventions involving positive psychology, such as documenting three good things that happened each day, also led to an enduring increase in happiness and reduced stress (Seligman et al., 2005).
Mental health therapies often utilize a combination of these techniques to enhance the psychological and physical well-being of individuals.
#SPJ3
Bile from the liver is secreted into the small intestine to make the absorption of nutrients more efficient.
B
Involuntary muscles of the small intestine contract to make the absorption of nutrients more efficient.
C
Salivary glands deposit saliva into the small intestine to make the absorption of nutrients more efficient.
D
Villi in the small intestine have thin-walled capillaries to make the absorption of nutrients more efficient.
The correct answer is:
D .Villi in the small intestine have thin-walled capillaries to make the absorption of nutrients more efficient.
Explanation:
The small intestines are well adjusted for absorbing nutrients during digestion by being very long, having villi and microvilli that enlarge surface area, using muscular contractions to move and mix food, and raising and housing digestive enzymes and bile that aid the breakdown of food. The inner surface of the small intestine is not flat but thrown into circular folds, which not only enhance surface area but aid in preparing the ingesta by acting as baffles. Villi: the mucosa makes multitudes of ridges which project into the lumen and are satisfied with epithelial cells.
The correct option is A. DNA replication is the process by which two identical copies of DNA are produce from one original, parent DNA. The process occurs in all living organisms and it is the mean through which traits are passed from parents to offspring. A number of mechanisms has been put in place to ensure that base pairs are accurately copied during the process of DNA replication. For instance, pairing adenosine base with guanosine during the replication process will result in an error, which can have very severe consequences, if it is not corrected.