BIOLOGY HIGH SCHOOL

State the functions of the following: a.Platelets b.Red blood cells c.White blood cells

Answers

Answer 1
Answer:

Answer:

the explanation is

Explanation:

A.platelets helps in blood clotting

B.red blood cells help in transporting oxygen to all parts of the body and is used to remove CO2 from the body

C.White blood cells help in fighting against diseases and bacteria

Related Questions

The food web above represents feeding relationships in a biological community near a deep-sea hydrothermal vent. Hydrothermal vents are geysers on the seafloor that gush super-heated, mineral-rich water. The seawater surrounding hydrothermal vents typically contains carbon dioxide (CO2), molecular hydrogen (H2), hydrogen sulfide (H2S), and methane (CH4). Sunlight, however, fails to reach the seafloor where deep-sea hydrothermal vents are located.As part of an investigation, researchers collected living specimens from an area near a deep-sea hydrothermal vent. Mussels in the collection were found to be dependent on molecular hydrogen in seawater. Also, the researchers discovered multiple species of bacteria living in the gills of the mussels. Mussels use gills for filter-feeding and gas exchange with the surrounding seawater. On the basis of their experimental results, the researchers hypothesized that some bacteria living in the gills of the mussels are capable of chemosynthesis. Based on an analysis of the food web, an observation that deep-sea bacteria consume molecular hydrogen (H2) is most relevant to resolving which of the following apparent contradictions?Some organisms rely on energy captured from inorganic compounds to drive basic biological processes.Some deep-sea organisms appear to be primary consumers, but no plants live near the hydrothermal vents.
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According to the fossil record, which of these evolved after amphibians? Select two options.mammalsspongesfishbacteriareptilesthe subject is science
Eubacteria lack a nuclear membrane, so nuclear material is found throughout the cell.True False

Mammals that give birth to under-developed young that must continue developing in a pouch-like structure are termeda. monotremes.
b. marsupials.
c. placentals.
d. bird-like.

Answers

The answer is b. marsupials. 

Monotremes, marsupials, and placentals are groups of mammals that mainly differ in modes of reproduction.
Marsupials are the group of mammals that give birth to under-developed young. The young continue their development inside a pouch-like structure. The most famous marsupials are kangaroos, koalas, opossums, numbats, etc.

Monotremes are the group of mammals that lay eggs, so they do not give birth to live young.
Placentals are mammals that give birth to fully developed young. The young develop inside a mother's uterus.

Which type of water is the least dense? A.
warm, salty water

B.
warm water with no salt

C.
cold water with no salt

D.
cold, salty water

Answers

B, cold with a high salt content, I believe. Since density is mass divided by volume, adding salt would increase mass. Temperature is related to kinetic energy and the distance between molecules/atoms of a substance. The hotter the substance, the more distance there is between particles. Generally cold water is more dense. Hope i helped :D

What describes a result of the greenhouse effect?

Answers

It is is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere. If a planet's atmosphere contains radiatively active gases (i.e., gases) the atmosphere will radiate energy in all directions.

Which of the following is true about renewable resources?A. They can be replaced by a healthy environment.

B. There are plenty for people to use, but only for a very short time.

C. Using them will hurt the environment.

D. They cannot be replaced after they are used up.

Answers

Answer:

Option A

Explanation:

Renewable resources can be replenished again and again with the right type of environment provided. For example hydroelectricity is generated again and again.
the answer should be 'a'
the second option: 'b' 

When air at the surface diverges, airflow above must__

Answers

converge, regardless of hemisphere

Answer:

: When the air at the surface diverges, it means that, above, the air sinks and that is called, a subsidence, the opposite of a convection. It happens when the atmospheric pressure is high and it diverges from the ground towards regions of lesser pressure,

Explanation:

The longest and largest bone of the upper limb is the ________

Answers

Answer:

humerus.

Explanation:

Here are some key points about the humerus:

1. Length: The humerus is the longest bone in the upper limb, measuring about one-third of the length of the entire upper limb.

2. Structure: It is a long bone that consists of a shaft and two ends. The shaft is cylindrical in shape and has a slightly curved appearance. The upper end of the humerus forms part of the shoulder joint, while the lower end articulates with the bones of the forearm at the elbow joint.

3. Articulations: The humerus forms two important joints in the upper limb. The upper end articulates with the scapula (shoulder blade) to form the shoulder joint, also known as the glenohumeral joint. The lower end articulates with the radius and ulna bones of the forearm to form the elbow joint.

4. Function: The humerus plays a crucial role in various movements of the upper limb. It allows for flexion, extension, abduction, adduction, and rotation of the arm. These movements are essential for activities like lifting, pushing, pulling, and throwing.

5. Muscles attachment: The humerus provides attachment points for several muscles involved in upper limb movements. These include the deltoid, biceps brachii, triceps brachii, and many others.

In summary, the humerus is the longest and largest bone of the upper limb. It supports the arm and enables a wide range of movements in the shoulder and elbow joints.
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