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daser333 [38]
3 years ago
13

Which of the following protists have shells?

Biology
1 answer:
BlackZzzverrR [31]3 years ago
5 0
We can't read your minds we need to see the options
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How does the cell membrane in the diagram above help to maintain the health of this cell?
Morgarella [4.7K]

The<em> cell membrane</em> controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.

3 0
3 years ago
Which of the following activities will help make rural societies more sustainable? A. Design energy efficient forms of transport
denpristay [2]

Answer:

The correct answer would be Option C, Multipurpose Trees.

Explanation:

With the advancement in industries and other areas of technology, the rural areas have become so much polluted. So the sustainability of the rural areas is doubtful. The air in the rural areas have become polluted and needs measures to prevent it from harmful consequences of the industrial advancements. Along with industries, the air pollution is also added through vehicles discharge, waste disposal, etc also contribute towards the non sustainability of the rural areas. So to overcome all these problems, the best solution is to grow the multipurpose trees in the rural areas as much as possible to increase the sustainability of these areas. With the plantation of trees, the problem of pollution will be controlled and thus make these areas sustainable.

5 0
3 years ago
You are studying droplets of various solutions and comparing them to water. what shape do they start as?
cricket20 [7]

In the case of liquid droplets, including water, surface tension is the factor, which is accountable for their shapes and configuration. Though can easily be malformed, the droplets of water seem to be pulled into a spherical shape due to the cohesive forces of the surface layer.  

In the non-existence of other forces, involving gravity, the drops of almost all the liquids would be almost spherical.  


5 0
3 years ago
Read 2 more answers
DNA is made up of monomers called nucleotides. How many does mono- represent?
Lunna [17]

Answer:

It is often said that life is “carbon-based.” This means that carbon atoms, bonded to other carbon atoms or other elements, form the fundamental components of many, if not most, of the molecules found uniquely in living things. Other elements play important roles in biological molecules, but carbon certainly qualifies as the “foundation” element for molecules in living things. It is the bonding properties of carbon atoms that are responsible for its important role.

Carbon Bonding

Explanation:

8 0
3 years ago
___________ protein is a major component of the cortex in RBCs. Mutations in this protein develop a form of anemia that can caus
Olin [163]

Answer: Spectrin Protein Is a major component of the cortex in RBCs. mutations in this protein develop a from of anemia that can cause to RBCs to develop a flatened shape, making them extremely fragile.

6 0
3 years ago
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