Biology

Select the correct answer.How much does the diameter of the disk of the Milky Way measure?A.10,000 light yearsB.1,000 parsecsC. 100,000 light yearsOD.100 parsecs
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Are Parakeets good starter pets? why or why not
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Mendel was a careful researcher who studied the inheritance of certain traits in garden peas. What are some of the research practices Mendel used? Choose all that apply.A. He crossed true-breeding pea plants.B. He allowed eggs to be fertilized only by self-pollination.C. He analyzed his data mathematically.D. He controlled variables by studying one or two traits at a time.
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The color of an object that humans see is actually the ______ of light reflected off the objectPlease answer !!!
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How does volcanic rock in Hawaii turn into sediment?
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WILL MARK BRAINLIEST IF YOU ACTUALLY ANSWER THESENO FAKE ANSWERS OR REPORTED AND UR ACC WILL GET DELETED.At Weeks Bay there was a population of 200 alligators. In May of 2006 a new species of catfish was released into the Mississippi. These catfish reproduce very fast and soon become a rich food source for the alligator population. This provides the alligators with the energy needed for more successful reproduction. The following summer of 2007, 100 babies were born and a total of 40 gators died that year. However, the next year in early 2008 there was a terrible drought, causing 100 alligators to die.1. What was the population size of alligators during the summer of 2007?2. What is the growth rate (r) of the alligator population during 2007? 3. Name one density-dependent factor affecting this population.4. Name one density-independent factor affecting this population. What type of growth does your graph illustrate?6. The population size that an environment can sustain is known as its 7. The number of individuals in a population within a given area is known as the ty8. The population growth model that considers carrying capacity is known as 9. Populations that grow exponentially when environmental conditions are good, and rapidly decrease when conditions are bad, are known as
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How does stopping at checkpoints benefit the cells?
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The functions of two physical structures of plants are described below:Structure 1: Holds the leaves of the plant toward the light.Structure 2: Helps reduce water loss.What statement is true about the functions? Structure 1 is the stamen and Structure 2 is the pistil. Structure 1 is the stem and Structure is the waxy covering. Structure 1 is the pistil and Structure 2 is the fuzzy hair. Structure 1 is the waxy covering and Structure 2 is the stamen.
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What is the second step of protein synthesis called?mutationtranslationtranscriptiondivision
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how do the ocean zones compare with one another
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The definition of the water cycle isA. rivers draining into the ocean.B. water moving between reservoirs.C. transpiration.
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From the act of pollinating flowers, a bee population gains the benefit of a 0.06 growth rate increase per month. However, the costs imposed by the flower (bees occasionally getting stuck, time spent pollinating the flower instead of pollinating other species, etc.) is a 0.02 reduction in growth rate per month. The flower gains benefits from the pollination that enhance its population growth rate by 0.05 per month, but it incurs costs (feeding the bees, damage done by the bees) that reduce its growth rate by 0.07 per month. Which of the following statements about the relationship between the bees and the flowers is true?a. It is a host?parasite relationship in which the bees are the hosts and the flowers are the parasites.b. It is a host?parasite relationship in which the flowers are the hosts and the bees are the parasites.c. It is an amensalismd. It is a commensalism.e. It is a mutualism.
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which of the following is least affected by seasonal environmental conditions?
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A major cause of genetic variation within a species is the result of -
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a college student regularly stays up late and tends to eat snacks high in fat and sugar
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When asked for an example of an adaptation, a student explained, "A turtle's hard shell is an adaptation. A long time ago, a few turtles were able to make their shells harder in order to protect themselves from predators and then passed the trait of harder shells on to their offspring." Do you agree or disagree with this student? Explain why.
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Which of the following statements is NOT true about DNA? *1 pointThere are about 20,000- 25,000 genes in DNA.Genes are made up of smaller segments of DNA.Genetic material is passed on from parent to offspring by DNA.DNA is a set of instructions which determines the traits of an organism.
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A chemist weighed out 101. g of beryllium. Calculate the number of moles of beryllium she weighed out.
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does anybody know what question 3 answer is?
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What is the usefulness ofcategorizing Earth's historyinto the geologic time scale?
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The most dangerous property of cancer cells is that they:1. divide slowly2. spread throughout the body3. do not divide by mitosis4. do not live very long
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Self-pollination is when the pollen from one plant lands on the stigma in the same plant. What do you think the other type of pollination is called?________(hint: This is where the pollen from one plant lands on the stigma of a different plant.) A. asexual reproductionB. vegetative reproductionC. agricultureD. dormancyE. cross-pollination
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Think of a forest ecosystem. List two biotic factors that compete for the same abiotic factor.
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How does RNA polymerase determine which strand is the template/antisense strand?
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