Phototropism, Gravitropism, Thigmotropism, <span>Hydrotropism and Heliotropism</span>
Answer:
Possess striations. (Option A)
Explanation:
Skeletal muscle fibers are known as the type of striated muscle tissues and the somatic nervous system helps to control them. With the help of the bundle of collagen fibers which is called tendons, skeletal muscle cells attached to the bones.
Skeletal muscles are cylindrical and long in structure. While seeing under the microscope they have striated, and this striation occurs by the presence of actin, and myosin contractile proteins. Some functions of Skeletal muscle fibers are:
1) They help in contraction, and cellular physiology.
2) They help in signal transduction pathways.
The parent cell will create daughter cells with the same number of chromosomes as it has -- through mitosis.
The parent cell will create cells that are haploid, half the number of chromosomes of the parent -- through meiosis.
Answer:
Humans are gradually altering the climate and the earth's temperature through burning fossil fuels, destroying forests, and rearing animals.
Explanation:
This significantly increases the amount of greenhouse gases already present in the atmosphere, increasing the greenhouse effect and contributing to global warming.
Climate change is mostly caused by the greenhouse effect. Some gases in the Earth's atmosphere act as greenhouse glass, trapping heat from the sun and preventing it from escaping into space, causing global warming.
Hope it helps;
<h2>Gel Electrophoresis</h2>
Explanation:
- Gel electrophoresis is a technique used to separate DNA fragments by size and charge. Electrophoresis consists in applying a current through a gel that contains the molecules of interest. Based on their size and load, the molecules will travel through the gel in different directions or at different speeds, thereby separating each other. All DNA molecules have the same amount of charge per mass. Because of this, gel electrophoresis separates DNA fragments only by their size
- Electrophoresis allows us to see how many different DNA fragments are present in a sample and how large they are with respect to each other. We can also determine the absolute size of a DNA fragment by examining it next to a standard "scale" of fragments of known size
- They can be conducting such an experiment to find which of the students has which alleles are identified
