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RideAnS [48]
3 years ago
5

A log has a density of .8 g/cm³. This log will _______ in freshwater, which has a density of 1.0 g/cm³ .

Biology
2 answers:
m_a_m_a [10]3 years ago
7 0
The log will float on the water because his density is lower than the liquid, so it will stay at the top due to Archimedes' principle.

<span>Archimedes' principle is a physical law that describes the upward force (the vertical thrust) experienced by any body immersed in a fluid (liquid or gas). This force is strongly related to the density of both the fluid and the body.
</span>
You can try the experience at home, by using an object that has a lower density than the water like the sunflower oil, you will see that it will stay at the top of the water too.
slamgirl [31]3 years ago
3 0

Answer:

it will float

Explanation:

your welcome and have a great day

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The surface area of a plant's root system is substantially larger than the surface area of its shoot system. The extensive surfa
saveliy_v [14]

Answer:

Water and nutrient uptake.

Explanation:

The root system of a plant functions as conducting tissue for water and mineral nutrients that are essential for metabolic activities of the plant.

<em>Extensive surface area of roots is an adaptation associated with efficient water and mineral nutrient uptake because this will increase the surface area of roots in contact with the soil.</em>

6 0
3 years ago
A drug binds to a receptor in the nucleus. This binding turns on a gene to make a protein. This drug is ____. lipophilic and hyd
Serjik [45]

The drug that to a receptor in the nucleus. This binding makes on a gene to make a protein. This drug is actually lipophilic and hydrophobic, the correct option is A.

What is receptor?

In biochemistry and pharmacology, receptors are protein-based chemical frameworks that transmit and receive signals that can be assimilated into biological systems.

As the drug is crossing the lipid membrane so it should be lipophilic and hydrophobic to be able to bind the receptor as in the given situation.

Thus, the correct option is A.

For more details regarding a receptor, visit:

brainly.com/question/11985070

#SPJ1

4 0
2 years ago
Veins returning to the heart can close to prevent the backflow of blood. Which component in the veins contributes to this proces
givi [52]
Compared to arteries, valves have no pulse, have thin walls and have valves that prevent backflow of the blood. The pressure in the veins is less than that of the arteries, hence, there is no pulse. They are nearer to the surface of the skin. It also connects arteries and capillaries which transport blood all throughout the circulatory system.
8 0
3 years ago
What are they five steps of cloning?
Luda [366]

Hi

Below are five major steps of DNA or gene cloning:

1: You chose the gene or specific piece of DNA you need to clone and cut the gene with restriction enzymes from the source organism.

2: You need to choose a vector for the process of cloning and you will cut the vector with same restriction enzymes through which you have cut your target DNA sequence to be inserted into the vector.

3: You place the target gene into the vector and join or seal the gene with vector by using an enzyme called DNA ligase.

4: You introduce the vector with your target gene into a suitable host organism such as yeast or bacteria through the process of Transformation. In this process host organism takes up the vector containing your target gene and starts replicating the target DNA along with their own DNA and thus creating millions of copies of target gene .

5: In the last step, the DNA or target gene is isolated from host organism and purified and is ready to be used since its quantity has been enormously increased through the process of cloning.

The cloning is also called as recombinant DNA technology and is the main process that is being used in the production of insulin for diabetes patients. You can see below image for better understanding.

Hope it help!


6 0
3 years ago
Cyclostomata are fish _____. made of cartilage without a jaw made of bone
Stels [109]
Lamprey and hagfish are jawless fish, with skeletons composed of cartilage. They do not have scales and are considered primitive fish. They are in the superclass cyclosystoma.
3 0
3 years ago
Read 2 more answers
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