4. Large, circular lily pads are able to float on the water's surface.
Answer: cohesion
Cohesion mean that water attracted to another water. This force will make the water to form a surface tension in the lake. Water lily has a wide and thin leaf which makes it giving a low force per area. If the force applied on the surface is not bigger than surface tension, the leaf will stay float above the water. Surface tension also the reason water spider could walk on water.
5. The temperature of the water is about 5°C, while the temperature of the air is about 21°C.
Answer: heat capacity
Water has high heat capacity. High heat capacity mean that the water will not be easily become cold or hot. It will need more energy to increase/decrease the temperature of the water. This is why the water could keep its temperature much lower than the atmosphere. This will protect the organism inside the water from an extreme temperature change.
During cell differentiation, new proteins are expressed
During cell differentiation, some genes are silenced while some or expressed. Different cells differentiate differently depending on the type of cell is going to become. This is why even though all the cells in a multcellular organism have the same DNA, they become different organ systems that look different.
Explanation:
Different differentiated cells produce different proteins because they express different genes. For example Cells of the epidermis of the skin express the genes for producing keratin (the pigment molecule) while those in the dermis do not express this protein because this gene is silenced in dermis cells. In addition, in dark-skinned people, these genes are more expressed that in people with light skin.
Learn More:
For more on cell differentiation check out;
brainly.com/question/4768354
brainly.com/question/3239346
#LearnWithBrainly
Answer:Autoimmune hemolytic anemia. Known as AIHA, this condition occurs when the immune system creates antibodies that destroy red blood cells. Because red blood cells carry oxygen to the body's tissues, AIHA can result in a reduced amount of oxygen in the body.
<span>There are two main reasons why cells divide rather than continuing to growlarger and larger: The larger a cell becomes, the ……. ... more demands the cellplaces on its DNA. If the cell grows too large, it will have trouble moving enough nutrients and wastes across the cell membrane.</span>
I am not quite sure what you are asking, but I hope this helps! Cytosine, Guanine, Adenine, and Thymine are nitrogenous bases in DNA. Cytosine and Guanine pair up together, and Adenine and Thymine pair up. Adenine and Guanine are purines and Thymine and Cytosine are pyrimidines.
