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Allisa [31]
3 years ago
8

What are the red blood cells

Biology
2 answers:
Firlakuza [10]3 years ago
4 0

Answer:

Vertebrate red blood cells consist mainly of hemoglobin, a complex metalloprotein containing heme groups whose iron atoms temporarily bind to oxygen molecules (O2) in the lungs or gills and release them throughout the body. Oxygen can easily diffuse through the red blood cell's cell membrane.

Explanation:

Vladimir79 [104]3 years ago
3 0

Explanation:

The red blood cells are formed in the marrow of the bones and are released into the blood. The red colour of the blood is as a result of of presence of haemaeglobin in the red blood cells. Haemaeglobin is an iron compound which combines with oxygen to form oxyhaemoglobin. The red blood cells transports oxygen in the form of oxyhaemoglobin to tissues all over the body.

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Which statements about the fluid mosaic structure of a membrane are correct? Select the three correct statements.-Because membra
Veseljchak [2.6K]

Answer:

-Because membranes are fluid, membrane proteins and phospholipids can drift about in the membrane.

-The diverse proteins found in and attached to membranes perform many important functions.

-The framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center.

6 0
3 years ago
A part of neuron that carries impuleses away from the cell body is​
denis23 [38]

Answer:

axon

Explanation:

An axon is a part of the neuron that carries impulses away from the cell body. This is because the axon dendrites are processes of the cytoplasm that provide impulses to the cell body. The process is called an axon impulses away from the cell body.

3 0
3 years ago
Why would farmers in the United States be especially concerned about a decrease in groundwater?
Ugo [173]

Answer:

C

Explanation:

A) By far the most groundwater is used for livestock.

B) By far the most groundwater is used by farming households.

C) By far the most groundwater is used for irrigating crops.

D) By far the most groundwater is used for public supply in farming communities.​

Out of these options, I believe that the answer is C because Farmers required a lot of water for irrigation, though it depends on the time period whether it's modern day or 1700s, etc. in order to officially tell.

Hope this helps Merry Christmas

8 0
3 years ago
Several groups of protists have variable modes of nutrition: Some species are photoautotrophs, whereas close relatives are heter
Radda [10]

Answer:

The endosymbiotic theory

Explanation:

Protists are the multicellular organisms which possess characteristics of both the prokaryotes and eukaryotes.

The protist can derive nutrition by either heterotrophic mode or photoautotrophic mode. This variation could exist within the same genus and same species.

This variation could be explained with the endosymbiotic origin of the organisms as some species could engulf the photosynthetic bacteria whereas some could have engulfed the chemosynthetic bacteria.

This can be observed in the green and red algae which depend on a different mode of nutrition belonging to the same group.

Thus, the endosymbiotic theory is correct.

4 0
3 years ago
Which three periods make up the Mesozoic era?<br>​
grandymaker [24]

Answer:

The dinosaurs went extinct 65 million years ago. The Mesozoic Era lasted about 180 million years, and is divided into three periods, the Triassic, the Jurassic, and the Cretaceous. Each of these periods is divided into many epochs and ages. Mesozoic means "Middle Animal" and is sometimes called the age of reptiles.

Explanation:

8 0
3 years ago
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