Kaela Piechowicz

SUNY College at Geneseo

Biography

I have a major in Biology and a minor in Chemistry. I've been teaching for a total of 19 years! Current courses are two different levels of Biology and Anatomy/Physiology 1 and 2

Education

BS Biology
SUNY College at Geneseo

Educator Statistics

Numerade tutor for 3 years
1814 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
Mendelian Genetics: Understanding Inheritance Patterns
Discover the Evolutionary Tree with Our Phylogeny Analysis Tools
Circulation and Gas Exchange: Vital Processes for Optimal Health
The Importance of Understanding the Cell Cycle for Cellular Reproduction
Exploring Animal Reproduction and Development: A Comprehensive Guide
The Fascinating Chemistry of Life: Discovering the Building Blocks
The Central Dogma: Understanding Gene Expression
The Incredible Power of the Nervous System: Understanding its Functions
Conservation Biology and Global Change: Protecting Our Planet
Mastering Metabolism 101: A Beginner's Guide
Cellular Respiration and Fermentation: Understanding the Basics
Exploring Population Evolution: Trends and Insights
Sensory Alterations
Managing Patient Care
Patient Education
Unlocking the Power of Chemical Reactions: A Comprehensive Guide
Amino Acids, Peptides & Proteins - Essential Building Blocks
Survival of the Fittest: Life Through a Darwinian Approach
The Fascinating History of Life: From Origins to Present
Discover the Wonders of Chemistry: Your Introductory Guide
Atoms, Molecules, and Ions: Understanding the Building Blocks of Matter
Unlocking the Power of Composition: Tips and Techniques
Carbohydrates and Nucleic Acids: The Building Blocks of Life
Discovering the Wonders of the Biosphere: An Introduction
Ecosystems and Restoration Ecology: Restoring Balance and Biodiversity
Advancements in Genomics and Biotechnology: Revolutionizing Science
Periodic Table
Discover the Fascinating World of Protists: A Comprehensive Guide
Discover the Fascinating World of Fungi: Unleash the Magic!
Unlocking the Secrets of Cell Signaling: Understanding the Intricacies
Boost Your Immune System: Tips and Tricks for a Stronger Defense
Hormones & The Endocrine System: Understanding the Body's Chemical Messengers
Understanding Animal Form and Function: A Comprehensive Guide
Nutrition
Population Ecology: Understanding the Dynamics of Living Systems
Understanding the Process of Speciation: Exploring Evolutionary Diversity

Kaela's Textbook Answer Videos

0:00
Campbell Biology

All the organisms on your campus make up
(A) an ecosystem.
(B) a community.
(C) a population.
(D) a taxonomic domain.

Chapter 1: Evolution, the Themes of Biology, and Scientific Inquiry
Kaela Piechowicz
0:00
Biology for AP Courses

A population of insects were formally distinguished by a mix of colors on their thorax and legs. This population now appears to be split into 2 sub-groups, purple and orange-legged. Researchers hypothesize that the purplelegged group may be increasingly resistant to the Bt (Bacillus thuringiensis) toxin. Which idea supports this observation?
a. transgenesis
b. natural selection
c. hybridization
d. recombination

Chapter 17: Biotechnology and Genomics
Kaela Piechowicz
0:00
Biology for AP Courses

What occurs as a result of fertilization of an egg and sperm?
a. Fertilization restores diploidy.
b. Fertilization always results in a viable embryo.
c. Fertilization merges two diploid cells into a haploid cell.
d. Fertilization precedes ovulation

Chapter 34: Animal Reproduction and Development
Kaela Piechowicz
0:00
Biology for AP Courses

A component of snake venom kills the prey by preventing blood from clotting. Which of the following is the most likely medical application for the active component?

a. promoting scab formation
b. speeding healing of wounds
c. relaxing muscle pain
d. a blood thinner

Chapter 38: Conservation Biology and Biodiversity
Kaela Piechowicz
0:00
SAT Biology E/M

Mycorrhizae are
((A) plants that have no vascular tissue
(B) nitrogen-fixing bacteria that live in nodules on the roots of legumes
(C) primitive plants like mosses, which show a dominant gametophyte stage
(D) vascular bundles in the stems of tracheophytes
(E) symbiotic structures living in the roots of plants that increase uptake of nutrients from the soil

Chapter 1: MINI-DIAGNOSTIC TEST
Section 1: Mini-diagnostic Test Biology E/M
Kaela Piechowicz
0:00
Chemistry: An Atoms-Focused Approach

The stainless steel used to make kitchen knives and many other tools gets its name from its capacity to resist corrosion and, therefore, stain less. Is this a chemical or physical property of stainless steel?

Chapter 1: Matter and Energy: An Atomic Perspective
Kaela Piechowicz
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Kaela's Quick Ask Videos

02:05
Biology

Lesch-Nyhan Syndrome is a disorder of the nervous system which often features severe self-mutilation by biting of the lips and fingers. It is an X-linked recessive condition.
Consider a Lesch-Nyhan woman:
Which of her parents gave her her Lesch-Nyhan genes?
b) If she and a normal (non-Lesch-Nyhan) man have a family, what are the possible genotypes and phenotypes of their children? Give the expected proportions.
Show your work:

Kaela Piechowicz
03:52
Biology

Experimenting with Air
Fast-forward to 1772, when the British chemist Joseph Priestley found that plants have a relationship to the atmosphere. He announced in the quaint language of the day that he had "hit upon a method of restoring air that had been injured by the burning of candles. It is vegetation."
Priestley noticed that a candle in a jar eventually stops burning and cannot be relit. Also, if a mouse is placed in the jar after the candle has burned out, it dies. Thus, the air is injured.
1. What is our modern explanation for air's being "injured" by fire?
The fire causes oxygen to be depleted, making it unable to support combustion or sustain life.
His experimental method consisted of growing a plant in a jar in which a candle had burned out. He found that some days later, a candle would again burn in the jar and a mouse could live.
2. With your 21st Century sophistication, how do you explain the role of the plant in this change of the air in the jar?
3. How does this show the relationship between photosynthesis and cellular respiration?

Kaela Piechowicz
01:23
Biology

You cross two plants with the following genotypes: Aa Bb Cc Dd x
Aa Bb Cc Dd. What is the probability that the offspring will
express the dominant phenotype for A, recessive for b, dominant for
C and dominant for D?

Kaela Piechowicz
01:33
Biology

You are a genetic analyst and you have been asked to find the
allele frequencies using the following data in a 2 allele system
for eye color. In this system the Brown Eyed Allele (B) is dominant
over the blue Eyed Allele (b).
A population was surveyed for their eye color (the phenotype)
and found that 36 people have blue eyes and 64 people have brown
eyes.
Using the Hardy-Weinberg Formula determine the frequencies of
the Brown Eyed Allele (B), and the blue eyed allele (b). Be sure to
show all of your work and the calculations. Also provide a
concluding statement.

Kaela Piechowicz
01:04
Biology

In blood groups besides the ABO system, humans can
exhibit codominance of blood alleles M and N. Within the population
of people in Los Angeles county, the frequency of M allele was
0.82, and the frequency of the N allele was 0.18. Assuming that the
population represents 10,000,000 people, how many people would be
homozygous dominant for the M allele? (You may write your answer
with or without commas or in scientific notation.)

Kaela Piechowicz
00:56
Biology

There are 400 individuals in a sample group. The gene of
interest has two alleles: A (dominant)
and a (recessive). One hundred and forty-four
individuals of the sample group are homozygous for the dominant
allele (AA); one hundred and ninety-two individuals are
heterozygous (Aa); the remaining individuals of the sample
group are homozygous for the recessive allele (aa). What
is the frequency of allele a in the sample
group?
a. 0.16
b. 0.34
c. 0.4
d. 0.48
e. 0.6

Kaela Piechowicz
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