Master Biology with Fun Quizzes & Brain Teasers!

A(n) __________ stroke is caused by a blood clot in one of the arteries leading to the brain. The clot may be due to plaque building up in the arteries going to the brain, reducing the blood flow to the brain.
1 Answer
HURRY I DONT HAVE MUCH TIME!!!!Sperm fuse with eggs in female cones and make seeds. What kind of reproduction is this? a) sexual reproduction b) asexual reproduction
1 Answer
Pls helpWhat traits did you use to separate the items into two different phyla?
1 Answer
Fossil fuels are a ______ resource because it would take too long to form new supplies.pollutingnonrenewabledamagingrenewable
2 Answers
The primary reason the bacteriophage was an ideal model system for the Hershey and Chase experiments was that ______.
1 Answer
in a cross between aabbccddee and aabbccddee, what fraction of the offspring will be phenotypically dominant for all alleles? express your answer as a fraction.
1 Answer
true or false?When insulin enters inside muscle cells, it triggers the insertion of glucose transporters in the membrane and allows glucose to move into the cells.
2 Answers
______ in the atmosphere, like theglass panes in a greenhouse, lets in sunlight and trapthe heat energy escaping from the Earth. As a result,the temperature of Earth ______ ??
1 Answer
One approach to reducing world hunger is to increase the yield of crops grown per acre of land. At the same time, many consumers are interested in organic foods to support a healthier lifestyle. Organic fertilizers that are classified as high-efficiency products can increase crop yield and protect the environment. As an individual organic farmer considers her options, which statement is both scientifically valid and unbiased?
1 Answer
Cellular Respiration crossword puzzle pls help
1 Answer
Write T or True if the statement is true; write For False if the statement is false.1. The greenhouse effect is a natural process that supports life on the earth for millionsyears. 2. The majority of the Earth's atmosphere is composed of nitrogen and oxygen,greenhouse gases comprise only a tiny fraction of the atmosphere.3. All greenhouse gases are created as a result of human activity.
1 Answer
WILL GIVE BRAINLIEST
1 Answer
In the absence of growth factor, most animal cells will stop the cell cycle at a restriction point in what stage
2 Answers
which of these properties is most helpful whe identifiying a substance in a given sample of matter? pls help and also no links
1 Answer
Need help on this question
1 Answer
Early in development, the nervous system begins as a ______. A. tube surrounding a fluid-filled cavity B. spherical structure in the center of the embryo C. diffuse system of cells scattered throughout the body D. single layer of cells covering the heart and other internal organs
1 Answer
The left and right greater thoracic splanchnic nerves synapse on ganglionic neurons within the ______.
1 Answer
How does the body create a difference between atmospheric and intrapulmonary pressures to cause air flow to and from the lungs
2 Answers
which tools can be used to measure the volume of a substance? select the two correct anwsers. pls and also dont put any links thx u :)
1 Answer
9. Do you think that the blue crab can survive out of water? Explain your answer.
2 Answers
Scientific discoveries are rarely used in technology.Ture or false
2 Answers
Which of the following is a shared characteristics of photophosphorylation and oxidative phosphorylation? A. both utilize a proton gradient established by an electron transport chain to power ATP synthetase B. both consume oxygen and produce carbon dioxide C. both involve substrate-level phosphorylation being the main route of ATP production D. both produce metabolic water E. Both use high-energy electron carriers to shuttle electrons within organelles of the cell F. both can be performed by plant cells
1 Answer
what is the random movement of a substance from an area of high concentration to an area of low concentration called?
1 Answer
in order for a population to remain in hardy-weinberg equilibrium, mating must be random. what would happen to the genotypic and phenotypic frequencies if individuals were more likely to mate with others that shared their phenotype?
1 Answer