Answer: Option A.
The generation of nectar in flowering cactus is not a nonspecific defensive mechanism.
Explanation:
Cactus is a xerophytes that have adaptations to survive in its environment.
Cactus have extrafloral nectaries that produce nectars for pollination.The generation of Cactus nectars is just to attract insects like bees for polloniation and not as nonspecific defensive mechanism.
Answer:
The four components of blood are RBC, WBC, Platelets, and blood plasma.
Explanation:
The major 4 components of blood are RBC, WBC, platelets, and plasma. Plasma is the fluid part of the blood and the remaining 3 are the cellular part.
Plasma is the yellow color liquid. In the plasma, all cellular components float. Plasma constitutes approximately 55% of the total volume of the blood.
The various functions of plasma are - It carries different nutrients from the alimentary canal to the liver and other parts of the body. Simultaneously it carries the CO2 from the different tissues and reaches them to lungs for expiration. It distributes the hormones and vitamins from endocrine glands to different target organs. Plasma also plays a role in the water balance in the body. It supplies water to tissues and receives excess water from them. Thus regulate the water balance in the body.
RBC is the enucleated cellular organelle of blood. The absence of nucleus enables it to carry more oxygen. It is red due to the presence of Hb and carries O2 and CO2 in the form of oxyhemoglobin and carbaminohemoglobin. It also helps in releasing energy through the metabolic process.
WBC is concerned with the immunity of the body. It acts as a defense mechanism of the body. The components of leukocytes such as granulocytes and agranulocytes are phagocytic. They engulf bacteria and viruses. Eosinophils fight against the allergic reaction in the body.
The blood platelets have blood clotting factors. There are 12 blood clotting factors which help in the clotting of blood.
It is known as sleep apena
Answer:
b. in vessel elements only, after turgor loss point through air-seeding across pit membranes
Explanation:
As in humans, embolism can happen in plants. In the case of plants, embolism occurs only in the elements of the vessel, after the point of loss of the turgor through the propagation of air through the membranes of the pits, in other words, the embolism occurs when there is air filling the empty spaces of the xylem (element of vase), creating air bubbles.
These air bubbles block the xylem's work in transporting water from the root to the other parts of the plants, that is, it reduces the plant's ability to absorb water from the soil, thus preventing the plant from carrying out not only photosynthesis, but numerous metabolic processes essential for your body to survive.
A. 4
B. 2
C. 3
D. 1
An experimental pharmaceutical is typically approved after it passes 4 phase of clinical trials.
What is clinical trial ?
Clinical trials are combination of new research, studies and experiments performed in people to evaluate the effectiveness of new experiment on human health.
It consists of main 4 phases.
Phase 4 clinical trial is also known as " Post-Approval Research and Monitoring ". It is the final stage of trial for any pharmaceutical product, drug or device. This trial study about the side effects, real life scenarios, long-term risks and benefits of particular pharmaceutical product which were not seen in the early trials.
So we can sayan experimental pharmaceutical can be approved when it passes 4 phases of clinical trials.
To know more about phases of clinical trial please click here : brainly.com/question/3429518?utm_source=android&utm_medium=share&utm_campaign=question
#SPJ1
150,000
1.5 million
10 million
The number of currently described species on the planet is about: C. 1.5 million.
A species can be defined as a biological classification of related organisms that have similar characteristics and they are capable of breeding with one another in a cycle.
Some examples of species of various organisms include the following:
In conclusion, there are currently about 1.5 million species on planet Earth.
Read more on species here: brainly.com/question/15971107
Answer:
The correct answer will be option- 1.5 million.
Explanation:
Biodiversity refers to the variety of species and ecosystem present on the earth in which they are part of it. The biodiversity comprises of three components: species diversity, ecosystem and genetic diversity.
The number of species present on this planet is found to be around 1.5 million in which 17,000 new species are being added to the existing number.
Thus, option- 1.5 million is the correct answer.
1. glucose 2. fructose 3. sucrose 4. cellulose
Answer:
surcrose
Explanation:
I googled it
Answer:
3. sucrose
Explanation: