Ritika Shakkerwal

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Biography

I'm a final year enthusias who is working in field of science since parts 1.5 years as subject matter expert. My expertise is in biology and chemistry up to graduation level.

Education

BS bachelors degree in life science
Other Schools

Educator Statistics

Numerade tutor for 4 years
144 Students Helped

Topics Covered

Discover the Power of the Cell: Unleash Your Potential with Our Products
Defending Against Viruses: Tips and Strategies | Your Ultimate Guide
Discover the Differences Between Bacteria and Archaea
Circulation and Gas Exchange: Vital Processes for Optimal Health
Understanding Animal Form and Function: A Comprehensive Guide
The Central Dogma: Understanding Gene Expression
Advancements in Genomics and Biotechnology: Revolutionizing Science
The Importance of Understanding the Cell Cycle for Cellular Reproduction
Exploring Animal Reproduction and Development: A Comprehensive Guide
Mastering Metabolism 101: A Beginner's Guide
Optimize Your Animal's Health with Proper Nutrition
The Incredible Power of the Nervous System: Understanding its Functions
Unlocking the Secrets of Sensory and Motor Mechanisms
Discover the Wonders of Animal Diversity: Exploring the Richness of Life
Discover the Fascinating World of Invertebrates - Learn More Today!
Discover the Fascinating World of Vertebrates: A Comprehensive Guide
Understanding Animal Behavior: Tips and Insights
Hormones & The Endocrine System: Understanding the Body's Chemical Messengers
Boost Your Immune System: Tips and Tricks for a Stronger Defense
Population Ecology: Understanding the Dynamics of Living Systems
The Fascinating Chemistry of Life: Discovering the Building Blocks
Carbohydrates, proteins, and lipids
Understanding the Process of Speciation: Exploring Evolutionary Diversity
Discovering the Wonders of the Biosphere: An Introduction
Ecosystems and Restoration Ecology: Restoring Balance and Biodiversity
Conservation Biology and Global Change: Protecting Our Planet

Ritika's Textbook Answer Videos

03:17
Human Biology

Explain why the terms transcription and translation are appropriate for these processes. (pages $496-497$ )

Chapter 21: DNA Biology and Technology
Ritika Shakkerwal
01:56
Biology: How Life Works

Sexual reproduction results in offspring that are genetically different from one another and from their parents. What are four mechanisms that produce this genetic variation?

Chapter 40: Animal Reproduction and Development
Ritika Shakkerwal
02:27
Biology: How Life Works

How are asexual and sexual reproduction similar? How are they different?

Chapter 40: Animal Reproduction and Development
Ritika Shakkerwal
02:10
Biology: How Life Works

How can you explain the observation that there are very few, if any, ancient asexual organisms?

Chapter 40: Animal Reproduction and Development
Ritika Shakkerwal
02:11
Biology: How Life Works

What are three adaptations that allow reproduction to take place on land?

Chapter 40: Animal Reproduction and Development
Ritika Shakkerwal
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Ritika's Quick Ask Videos

02:13
Biology

We have stated that animals cannot make glucose from fats. Why not? β-oxidation of fatty acids generates acetyl-CoA, and acetyl-CoA can be fed into the Krebs cycle, one of whose intermediates is oxaloacetate. Why, therefore, cannot animals make glucose from fats? It appears simple enough to divert oxaloacetate from the Krebs cycle for gluconeogenesis.

Ritika Shakkerwal
0:00
Biology

Match each cellular component with the correct cell type: prokaryote, eukaryote, or both.
Contains ribosomes: Both.
Has nucleus: Eukaryote.
Has nucleoid: Prokaryote.
Has cell membrane: Both.
Has organelles: Eukaryote.
Contains ribosome: Prokaryote.
Has cytoplasm: Both.
Has a nucleoid: Prokaryote.

Ritika Shakkerwal
02:25
Biology

PART B: Assessments
Match the tissues in column A with the characteristics in column B. Place the letter of your choice in the space provided.
(Some answers may be used more than once.)

Column A
a. Simple columnar epithelium
b. Simple cuboidal epithelium
c. Simple squamous epithelium
d. Pseudostratified columnar epithelium
e. Stratified squamous epithelium
f. Stratified columnar epithelium
g. Stratified cuboidal epithelium
h. Transitional epithelium

Column B
1. Consists of several layers of cube-shaped, elongated, and irregular cells, allowing an expandable lining
2. Commonly possesses cilia that move dust and mucus out of the respiratory airways
3. Single layer of flattened cells
4. Single row of elongated cells, but some cells don't reach the free surface
5. Forms walls of capillaries and air sacs of lungs
6. Provides lining of urethra of males and parts of pharynx
7. Provides abrasion protection of skin epidermis and oral cavity
8. Forms inner lining of urinary bladder and ureters
9. Lines kidney tubules and ducts of salivary glands
10. Forms lining of stomach and intestines
11. Two or three layers of cube-shaped cells
12. Forms lining of oral cavity, anal canal, and vagina

PART C: Assessments

Ritika Shakkerwal
02:28
Biology

Fur color in cats is controlled by two alleles: A and a. Cats that have genotype AA or Aa have white fur, and cats that have genotype aa have gray fur. The frequency of the A allele (p) in this population = 0.5

Ritika Shakkerwal
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