-
How do unicellular organisms living in water control the entry and exit of water? Are they able to live in any enviroment? How can this be tested?
-
Describe the phenomenon of chromophore photoreversibility and explain its role in light-induced germination of lettuce seeds.
-
What are three of the different adaptations that merton identifies? identify and discuss the three adaptations that you chose?
-
Assume that you are a marine biologist. Choose a marine phyletic group and write a report on its diversity and the adaptations to the environment. How does this diversity and adaptations differ from t
-
If an egg cell contains 50 chromosomes, how many chromosomes are in a sperm cell from the same species? A.25 B.100 C.200 D.50
$15.00
Biology
Waiting for answer
-
People with achondroplastic dwarfism are heterozygous for a dominant allele conferring this trait. The homozygous dominant condition for the achondroplasia allele is lethal. What is the probability th
$20.00
Biology
Waiting for answer
-
If the number of deer decreased as the number of wolves increased, we could then say the wolves were a ______________ ________ to the deer population. Fill in the blanks. BEST ANSWER WILL BE MARKED BR
-
This map shows the ages of the Atlantic’s oceanic crust. Which conclusion can you draw based on the information in the map?
-
Click to select the correct answers. Click again to unselect answers. Leave the incorrect answers unselected. All living things are made up of four classes of biological macromolecules: carbohydrates,
$10.00
Biology
Waiting for answer
-
Marne is a 21-year-old male with a history of major depression and previous suicide attempts. how would you categorize his risk of a completed suicide in the future?
-
Which of these is a valid reason for not hiring a potential employee? the person has a lack of experience. the person dresses poorly?
-
Which of the following is a true statement? A. Sugars and starches are broken down by your body into proteins B. Extra protein is eliminated from the body or stored as carbohydrates C. Carbohydrates h
-
The lower esophageal sphincter surrounds the upper opening into the stomach. if this sphincter failed to properly constrict, there might be a problem with _____.
-
The pglo set of plates helps demonstrate the interplay between genes and environment. using your set of plates, give an example of how bacterial with the same genotype can have different phenotypes du
$15.00
Biology
Waiting for answer
-
Where would you expect to find tension? A. Folded mountain B. Anticline C. Normal fault D. Thrust fault
-
Which is the primary advantage of instincts, such as the tendency of a mother bear to attack anything between herself and her cubs? A) They improve survival rates. B) They reduce predator contacts. C)
-
If you are peforming this test on an uknown organism, why is it a good idea to run simultaneous tests on known phenylalanine-positive and phenylalanine-negative organisms?
-
Which biotic feature of a watershed helps prevent flooding? a. Vegetation b. Large animals c. Soil d. pH
-
In the Southwestern U.S., tectonic forces have pushed rocks upward over millions of years to form the Colorado Plateau. As the plateau has risen during this time, the Colorado River has been cutting d
-
Saponification is what type of reaction? 1. acid-base 2. dehydrogenation 3. hydrolysis 4. hydrogenation
$12.00
Biology
Waiting for answer
-
A cold glass is left sitting outside on a hot day. soon, water droplets form on the outside of the glass. Describe the events that must occur for the water droplets to form on the glass
$20.00
Biology
Waiting for answer
-
what is the significance of being small like a bacteria?
$10.00
Biology
Waiting for answer
-
It is scientifically proven that the human brain can hold more information than a computer, however, we only use 10% of our brain compacity. Why do we not evolve so we can get rid of the extra 90% and
-
From the following list, choose the three components required for a good scientific argument. claim that explains something opinion that claim is correct evidence that supports claim at least a thousa
$35.00
Biology
Waiting for answer
-
The following describes a lab on natural selection. The materials needed for this lab included a bowl of toothpicks, a bowl of dried macaroni, a spoon, a forceps, a binder clip, a scissors, a plastic
-
After reading the Unit IV Lesson and your assigned readings, choose three substances that were discussed. One substance must be a gas/vapor hazard(Carbon Monoxide), one must be an aerosol hazard(Fumes
-
In "Sara Sees Red" how does the mountain trail seem different to Sara when she sees the injured woman than it had seemed to her in the past?
-
Which activities can help teens serve as role models for younger siblings in the area of healthy nutrition? Check all that apply.
-
Consider the model depicting the dynamics within a specific population of birds. Which input within this model is responsible for gene flow and therefore genetic variability within the existing bird p
-
What is a Polygenic trait? Explain how a Polygenic trait, such as skin pigmentation, produces a spectrum of phenotypes.
-
Telomeres are segments of DNA located at the end of chromosomes and have a loop-structure due to a long 3' overhang. Considering non homologous end joining process, can you suggest the importance of t
-
Sodium is a soft, light, extremely malleable silver-white metal that reacts explosively with water. Chlorine is a highly irritating greenish-yellow gaseous halogen capable of combining with nearly all
$50.00
Biology
Waiting for answer
-
The bacteria species known as Escherichia coli is capable of using oxygen to produce energy in a process known as respiration. It can also produce energy if no oxygen is available by using a process c
$12.00
Biology
Waiting for answer
-
Scientists can alter plants such as this potato plant in order to produce bigger and better potato crops. To do this, scientists alter specific ________ found in the DNA of the plants' cells. A) RNA B
-
If a 9.0-volt battery is placed across a 5.0-ohm resistance, the current will be _____ amperes.45 0.55 1.8
$10.00
Biology
Waiting for answer
-
A researcher is performing a test to check the effect of induce point mutation but the experimental mouse could survive what might be the reason for this
$12.00
Biology
Waiting for answer
-
What happens to the number of carbon atoms in the carbon chain molecules as they go through the Krebs cycle?
-
Help!!!!!! which tubes will test positive for iodine and which will test positive for benedicts test?
-
The following statement is false. Select the rewording that makes the statement true. A cell wall is a rigid structure that surrounds the cell membrane of animal cells.
-
For many years, the rain forests throughout the world were cut down to make way for farms, roads, and new villages. The immediate result of clear cutting the forests was obvious. But this practice led
$15.00
Biology
Waiting for answer
-
Jenny is preparing a presentation about volume for her science class. She writes down the following notes about volume: –Volume is constant for solids since they have a shape. –Volume varies for l
$35.00
Biology
Waiting for answer
-
Each of these four organisms began life as a single 2N cell. Cells in each organisms divided and differentiated. Probably the single most important process that ensured genetic continuity in all four
$100.00
Biology
Waiting for answer
-
The parts of an organisms environment that are living or once living and interact with the organism are _____
$35.00
Biology
Waiting for answer
-
Which Of the following is true concerning the balance between the solar energy absorbed and radiated by earth
$10.00
Biology
Waiting for answer
-
White-tailed deer are considered to be an overpopulated species in the central United States. Which of these events probably contributed the most to white-tailed deer exceeding their carrying capacity
$35.00
Biology
Waiting for answer
-
Define mirror neurons. Briefly explain how they were discovered and what researchers have linked them Mirror neurons are activated by performing an action or seeing another perform the action. They w
$15.00
Biology
Waiting for answer
-
In a theoretical operon, genes a, b, c, and d represent the repressor gene, the promoter sequence, the operator gene and the structural gene, but not necessarily in that order. this operon is concerne
-
Write a hypothesis about the worms and lima bean plants. Be sure to answer the lab question, “How can the presence of one species benefit another in the same ecosystem?”
-
Classify each of the following as being characteristic of effusion, diffusion, or both. The mixing of two or more substances Requires the presence of a small opening Net motion of a substance from an
$35.00
Biology
Waiting for answer
-
Compare the venn diagram of sexual. reproduction and asexual reproduction in plants. where in the diagram would you add offspring different from parents?
$10.00
Biology
Waiting for answer
