Which of the following types of bacterial cells would have flagella located at only one end of the cell? Monotrichous Lophotrichous Lophotrichous and monotrichous Peritrichous Amphitrichous Monotrichous and amphitrichous
Which of the following best describes energy transformations in ecosystems? a. Most energy in a lower trophic level is passed to higher trophic levels. b. Heat is not a significant waste product as energy passes betweer trophic levels. c. Most of the energy collected by an organism is not passed on to other organisms. d. Tertiary consumers collect the most energy in an ecosystem.
Which of the following cells can you see in Patient 4's sample? A. Red blood cells B. Platelets and basophils C. Agranulocytes D. Platelets and eosinophils
6. A scientist observed that a certain species of bacteria grew by 35% each hour. How many bacteria will be present after 24 hours if there were 73 initially? Give your answer to the nearest whole number. =Enter your next step here bacteria
What effect does cold air have on the movement of cilia in the respiratory epithelium? Select one: a. Cold air accelerates the movement of cilia enhancing the removal of mucus and debris. b. Cold air causes cilia to stop moving entirely,resulting in congestion and difficulty breathing. C. Cold air has no significant effect on the movement of cilia. d. Cold air slows down the movement of cilia, leading to the accumulation of mucus and potentially causing a runny nose.
Which of the following foods has the highest water content? Crackers Bagels Potatoes Swiss cheese IDON'T KNOWYET
The main two factors that control the metabolic rate are traveling and sightseeing video gaming and television diet and exercise laughter and crying
In which way is human chromosomes organized? 23 pairs of autosomes 23 pairs of chromosomes a total of 22 chromosomes 23 pairs of sex chromosomes
Multiple Choice Question A peptide bond is a chemical bond between two __ amino acids fatty acids monosaccharides phospholipids
13. What is the action of the sternocleidomastoid? to abduct, rotate, and flex the head to adduct, rotate, and flex the head
Which of the following describes the movement of ions by the sodium -potassium pump? Potassium is moved out of the cell and sodium is moved into the cell. Potassium is moved out of the cell. Sodium is moved into the cell Potassium is moved into the cell.
Rank the germicldes from most to least potent Rank the germicides from most to least potent. Rank the options below. Sterilants High-level disinfectants Low-level disinfectants Intermediate-level disinfectants
Lichens and mosses are examples of plant life found in the a. grasslands b. marine c. tundra d. tropical rainforest
Question 19 of 32 Which question would most likely be studied by a biologist? A. What causes cancer cells to grow uncontrollably? B. How can cancer-causing substances be regulated? C. How can a drug that treats cancer be synthesized? D. How much ultraviolet radiation passes through the atmosphere?
By knowing the traits of the parents, it is often possible to predict the physical appearance of their offspring. Below is information about two parents: $B=brown\quad eyes\quad (dominant\quad trait)$ $b=blue\quad eyes\quad (recessive\quad trait)$ Two hybrid parents (Bb)have a child. What is the probability that their child will have blue eyes? $25\% $ $50\% $ $75\% $ $100\% $
How are asexual reproduction and sexual reproduction different?
Density, and dispersion have an effect on reproduction and population size. True False
A cofactor is a __ structure associated with a particular enzyme. nonprotein protein
Vitamin D is an essential vitamin. True False
Which are true of an enzyme? It is a catalyst. It increases reaction rates. It decreases reaction rates. It decreases activation energy.
