Answer:
The correct answer will be option C- aggressive behavior is displayed to establish hierarchy without violence.
Explanation:
Aggressive behavior is a behavior which is produced to eliminate the competition by the opponent by expressing it physically, emotionally or verbally. Aggression is widespread in the animal kingdom which could be could be predatory between two different species or among members of same species.
Species establishes itself by showing anger and injuring others through fight which helps in establishing themselves as powerful member usually and during mating season.
Thus, option C is the correct answer.
Igneous rocks are divided into two groups, which penetrate or expand, depending on the strength of the molten rock.
- Intrusive Igneous Rocks: Intrusive, or plutonic, is an empty rock that occurs when magma is trapped in the depths of the Earth.
- Extrusive, or volcanic, igneous rock is produced when magma exits and cools above the Earth's surface.
hope it helps!
Answer:
A- a medical term for common bruise.
Explanation:
This is a type of closed wound inflicted by a blunt object. Therefore the epidermis remains intact but there is disruption of the underlying dermis structure. Blood usually leaks from the damaged capillaries into the surrounding areas.And this marked the meaning of contusion.
It usually affects both the bones and soft tissues.When it occurs in the bone it is bone contusion, muscles as muscle contusion or as in the question;to the skin as skin contusion.
Adequate rests, cold compression, elevation of the affected part. or compression with bandage are the methods of treatment.
Bone contusion takes longer time to heal with X-ray examination,but other forms heal naturally.
Answer:
b. Small stagnant pools do not provide enough water to dilute ammonia, which is toxic.
Explanation:
Amongst urinary waste products which are ammonia, urea and uric acid, ammonia is the most toxic, then comes urea which is mildly toxic while uric acid is the least toxic. Various organisms excrete these urinary wastes as per their habitat/adaptations. These waste products have some advantages and some disadvantages over each other. For example, ammonia is extremely toxic so it cannot be retained in the body for a longer time but it requires very less energy to produce ammonia than to produce urea that is why most of the aquatic animals excrete ammonia as urinary waste to save their energy and keep on urinating frequently because they live in water all the time. In a large water pool, excreting this ammonia does not cause toxicity because it gets diluted in the surrounding easily.
In contrast to this, land inhabiting animals like mammals prefer to excrete urea as urinary waste even if they have to spend more energy/ATP to convert ammonia into urea with the help of urea cycle. Land animals have to retain urinary waste products in their body for a longer time as compared to aquatic animals and this is the reason why they urinate less frequently because urea being less toxic can be retained in the body for a longer time.
But african lungfish is an exception to other aquatic animals when it comes to producing urinary waste because they live in small stagnant pools of fresh water and if they will excrete ammonia as waste it will make the habitat toxic leading to their death.