A scientist is examining a microscopic entity that targets cells, invades the cells, and forces the cells it has invaded to make duplicates of itself. It contains no DNA. Is it alive?
One strand of a DNA molecule has the following nucleotide base sequence: guanine, adenine, cytosine, thymine What will the sequence be on the same spot on the other strand?
cytosine, thymine, guanine, adenine
The process of metabolism usually produces energy, carbon dioxide, and what else?
the process of photosynthesis requires energy from the sun, water, and what else?
You are examining an organelle that contains most of the cell's DNA. What organelle are you examining?
Blackbird chicks hatch blind and featherless. Are the precocial or altricial?
An organism is made of several eukaryotic cells and makes its own food. it also has roots, stems, and leaves. To which kingdom does it belong?
An organism is made of a single, prokaryotic cell. To what kingdom does it belong?
Why do people salt meat before refrigeration was widely available?
to reduce the growth and reproduction of bacteria
An organism is in kingdom Protista. It makes its own food and cannot move on its own. Is it a part of the protozoa or algae?
If a plant cell has no central vacuole, what will it be unable to maintain?
If a cell has distinct, membrane-bound organelles but not a cell wall, is it most likely a prokaryotic cell, an animal cell or a plant cell?
What kind of muscle is found in the heart?
What is the name of the process that forms the top layers of your skin as well as you hair and nails?
Are the cells in the strands of you hair alive?
What do tendons do?
attach skeletal muscles to the endoskeleton
What functions does sweat perform?
cools the body down and also helps feed the beneficial bacteria and fungi that live on your skin
A person gets a mysterious disease that shuts down his sebaceous glands. Name one consequence of this situation?
dry skin, wiry, brittle hair, experience more infections
In Addition to fuel, what does combustion require/
If you were to weight the number of ounces of macronutrients you eat each day and compare that to the number of ounces of micronutrients you eat each day, which would be lower?
If you analyzed the specific proteins you eat and then looked for those exact same proteins in your cells, would you find them?
Two animals are roughly the same size and weight. They are kept in exactly the same conditions, and they are forced to have roughly the same amount of activity every day. nevertheless, the first one eats significantly more than the second, but neither animal gains any weight. Which animal is ectothermic?
How many basic steps are there in the combustion process that takes place in your cells?
If you eat fewer calories than your BMR and activity level require, will you lose weight, or gain weight, or stay the same weight?
Which organs are not part of the digestive tract?
pancreas, gall bladder, and liver
Which organ produces sodium bicarbonate, which is a base?
In which organ does most of the absorption of nutrients take place?
Which organ produces bile?
Which side of the human heart has only deoxygenated blood it it?
if oxygenated blood is flowing through a vein, where has it been and where is it going?
going to the heat, has come from the lungs
Which structures in the lungs will have more capillaries:
What chemical gives blood its red color?
When air is headed from your mouth to you lungs, does it pass through the larynx or trachea first?
While a woman is singing, she is changing her voice's pitch to match the melody. What is she doing to her vocal cords to change her voice's pitch/
Which system in the human body fights disease?
What is the main function of the urinary system?
regulates water balance and chemical levels in the blood
You are watching microscopic video of two lymphocytes physically attacking a pathogen, trying to beat a hole in its membrane. Are you watching the work of B-cells for T-cells?
What piece of medical technology makes use of the body's ability to produce memory B-cells?
What nickname is often given to the pituitary gland in order to describe its function?
master endocrine gland
What is cerebrospinal fluid?
the fluid in which the brain floats
The two hemispheres of a person's brain are unable to communicate. What structure in the brain is not working?
Which side of the brain controls the left side of the PNS?
If a person's pupil opens as wide as possible, what type of room has he walked into?
A biologist is examining neurons from a person's brain under a microscopic. He inadvertently spills some of that same person's blood onto the specimen. If she keeps watching the neurons, what will she see happening to them?
When you hear sound, what vibrates first?