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Biology
Biology
College
would cephalization be an advantage to jellyfish? why or why not?
Biology
Middle School
The human activities in two locations are described below: Location A: Rampant use of plastic containers Location B: Excessive use of pesticides and fertilizers Which statement is most likely true? Location A will have poor air quality because plastic is biodegradable. Location A will experience water scarcity because plastic absorbs moisture. The population of honeybees will increase in Location B because production of crops will increase. The population of fish in Location B will decrease because the water is contaminated.
Biology
Middle School
Which of the following characteristics suggests that whales evolved from terrestrial animals?A) whales feed their young milkB)whales use a tail fluke for locomotionC) whales have lunges and breath airD)whales lack hind limbs
Biology
High School
which part of the central nervous system is used to serve as the main communication link between the body and the brain
Biology
High School
Many conditions other than those that attack the brain tissue directly can also produce symptoms of neurocognitive disorder. These can be either medical conditions or other types of mental disorders. One cause of neurocognitive disorder is the severe interruption of blood flow to the brain known as a?
Biology
Middle School
The agricultural revolution took place approximately _____. A. 100 years ago B. 300 years ago C. 100,000 years ago D. 10,000 years ago
Biology
High School
The fingerlike projections which line the small intestine increase the surface area to maximize absorption and help mix the partially digested chyme with intestinal secretions are:______
Biology
Middle School
What happens at location B on this map?1. erosion 2. acid rain 3. crystalization4. glacier formation
Biology
High School
1.where does the energy required the process of cellular respiration come from?2.What are the main reactants of cellular respiration?3.For each molecule of glucose broken down during glycolysis, what is produced?HELP PLS.
Biology
High School
Terrestrial vertebrates use the urea cycle to convert the ammonium ion to urea such that the urea can be excreted. In the production of urea, only one of the nitrogens in the product comes from ammonium ions. What is the source of the other nitrogen?
Biology
Middle School
Suppose you have made the following hypothesis:The greater the height from which you drop a ball, the faster the ball will be traveling when it hits the ground because gravity has more time to speed it up.If you observed that a ball dropped from a height of 6 feet has a higher speed than a ball dropped from a height of 3 feet, does that evidence support the hypothesis?A.Yes, the evidence supports the hypothesis.B.No, the evidence contradicts the hypothesis.C.The evidence is not related to the hypothesis. please help
Biology
College
Some mutations result in proteins that function well at one temperature but are nonfunctional at a different (usually higher) temperature. Siamese cats have such a "temperature-sensitive" mutation in a gene encoding an enzyme that makes dark pigment in the fur. The mutation results in the breed's distinctive point markings and lighter body color.
Biology
High School
mitosis worksheet help
Biology
Middle School
Which sources of nutrient pollution are mentioned and shown in the video? Check all that apply.
Biology
Middle School
What is the first cell after fertilization called?
Biology
High School
Molecules found on the 'rungs' or steps of the DNA ladder. A.Sugar and phosphate molecules B.Nitrogenous bases held together by hydrogen bonds C.deoxyribose
Biology
Middle School
A scientist is trying to determine the relationship between clams, snails, and squid. When she generates a molecular clock,she is surprised to see that clams and squid are more closely related than clams and snails. Which did the molecular clockdata show?Clams and squid have been evolving separately for a longer time than clams and snails.Clams and squid have been evolving separately for a shorter time than clams and snails.Clams and snails have more in common genetically than clams and squid.Clams and snails are more similar in related structures than clams and squids.
Biology
High School
Processing that is initiated by sensory information about the external environment is called _____ processing.
Biology
Middle School
Which statement best describes what the mass of an object represents?
Biology
Middle School
the process of photosynthesis
Biology
Middle School
Imagine that hair color and eye color in humans are each determined by a single gene, and that each trait is found at different loci of the same chromosome. A human is heterozygous for hair color (Hh) and eye color (Ee). Using representations, show all the potential combinations in which these alleles could be distributed by the process of meiosis to gametes.
Biology
College
How does oceanic lithosphere form?
Biology
High School
An organism of the genus Staphylococcus is ________, while an organism of the genus Spirochaeta is ________.
Biology
High School
he researchers bought samples of whale meatall labeled simply as kujira, the generic Japanese term for whale meatfrom markets in Japan and sequenced DNA from these samples. They compared their data with sequences from known whale species. Because subspecies of whales from different populations differ genetically, the researchers were able to analyze the genetic variation in their samples and learn the location from which the whales were likely captured. These results would indicate if illegal whale meat was being sold.
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