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Bad White [126]
2 years ago
12

The skeleton of the cell, the cytoskeleton is made of what?

Biology
1 answer:
Angelina_Jolie [31]2 years ago
5 0

Answer: A Microtubules

Explanation: The cytoskeleton is composed of at last three different types of fibers: microtubules, microfilaments, and intermediate filaments. These fibers are distinguished by their size with microtubules being the thickest and microfilaments being the thinnest.

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What are the roles of covalent bonds and hydrogen bonds in the structure of DNA?
Vinil7 [7]
For the answer to the question above,
 <span>DNA is made up of two nucleotide strands. The nucleotides are connected together by covalent bonds within each strand. The sugar of one nucleotide forms a covalent bond with the phosphate group of another. The two strands themselves are connected by hydrogen bonds. The hydrogen bonds are found between the bases of the two strands of nucleotides. Adenine forms hydrogen bonds with thymine whereas guanine forms hydrogen bonds with cytosine. This is called complementary base pairing</span>
6 0
3 years ago
State two ways in which endocrine glands and exocrine glands differ.
denis-greek [22]

Answer:

The two major differences lies in the function and support system.

Explanation:

The two major differences between an endocrine and an exocrine system are as follows –  

a) An endocrine system releases its produce (hormones) into the connective tissue i.e blood while the exocrine system releases hormones directly into the ducts so that it could reach the targeted tissue directly.  

For example – the Adrenal gland is an endocrine gland that secretes adrenaline directly into the blood. The salivary gland is an exocrine gland that releases its produce into the collecting duct leading to mouth. However, Pancreas is both endocrine and exocrine gland.

b) The endocrine system cannot work alone therefore it works in coordination with the nervous system to control actions and balance the body. However, the exocrine system works independently

.

5 0
3 years ago
Which has been a negative impact of technology?
ExtremeBDS [4]
<span>I personalilty believe that there is four major negative impacts of technology
-Technology Can Put Privacy and Safety at Risk
- </span><span>More Use of Technology with Less Physical Activity Leads to Obesity
- Technology changes the way children feel and think
- CYBERBULLYING </span>
7 0
3 years ago
Question 1
Kazeer [188]

Answer:

the last one which I'm guessing is d......cause it kinda messed up

3 0
2 years ago
What do the data suggest about the effects of cane toads on the predatory behavior of black snakes in areas where the toads have
Brrunno [24]

Answer: C. Black snakes will not prey on cane toads in areas where cane toads have been present for 40–60 years.

Explanation:

Cane toad secret a toxin called bufotoxin which is a defense mechanism against predators. These defense mechanism is capable of killing black snakes if they eat cane toads. Within a period of 40 to 60 years, the black snakes in these area will be aware of the presence of a toxin capable of killing them in cane toads and will not prey on them. This phenomenon is termed learned behavioral adaptation.

4 0
3 years ago
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