what's is a nucleus?

A cuticle occurs on the surface of organisms of many phyla and appears to be an advantageous feature. why have higher organisms not retained this structure?

Mendel formed a possible explanation for the outcomes he observed in pea plants. Mendel formed a theory law hypothesis.

in which part if the cell is chorophyll found

A 9-year-old child presents to a school nurse with complaints of arm and leg pain. upon assessment, the nurse identifies numerous purple to yellow ecchymotic areas. when asked, the child says that the bruises are the result of "being in trouble at home." which action by the nurse is most appropriate?

Theory 1 what caused the giraffe neck to become longer

which part of the cell membrane is responsible for preventing unwanted materials from entering the cell

What problem did scientists have with getting podophyllotoxin from the Himalayan mayapple for cancer treatment?

how are the bones of the cranium held together?

When does recombination occur? at the two-strand stage, when the sister chromatids have been separated, and after dna replication at the four-strand stage, when each member of a homologous chromosome pair is composed of two sister chromatids, and after dna replication at the two-strand stage, when each member of a homologous chromosome pair is composed of two sister chromatids, and before dna replication at the four-strand stage, when each member of a homologous chromosome pair is composed of two sister chromatids, and before dna replication before dna replication?

The nurse finds that a patient has a blood pressure of 140/90 mm hg and has constricted bronchioles. which drug regimen will ensure the patient's safety?

Which of the following shows the evolutionary relationships between organisms?

The ____________ cells are found mostly in the proximal and distal regions of the stomach.

One characteristic of a lagoon is often: concentrated salt deep-sea fossils glacial till turbidity currents

Choose three symbiotic partners—one that illustrates mutualism, one that illustrates commensalism, and one that illustrates parasitism. Write a short paragraph (2-4 sentences) for each of the three symbiotic partners you chose, explaining how symbiosis functions in the partnership.

The finches of the Galápagos Islands changed over time as insects became more plentiful.

Surprising new evidence has shown that, in some cases, environmental factors can modify chromosomes in such a way that changes the expression of genes without changing genes themselves or any part of the dna sequence. these modifications are called epigenetic effects. epigenetic effects can sometimes even be passed from generation to generation. in what way would this kind of "inheritance" be an exception to mendel's laws?

Analyze and conclude 7. which, if any, of the blood samples tested cna the patient with type b+ blood receive? explain why. 8. explain how you were able to use your knowledge of how different types of blood react with anti-a, anti-b, and anti rh antibodies to determine the blood types of the four samples. 9. if a person has type a blood, he or she would have antibodies for what blood type? 10. why is type o negative blood known as the universal donor? why is o positive not a universal donor?

Jackie was born with _____ , the absence· of long· wavelength cones .

The picture below shows a floodplain alongside a river channel. A floodplain is a flat landform created by deposition on the bottom of a wide river valley.
Over time, a river gradually shifts its position back and forth across a valley bottom. As it shifts, it drops sediment to gradually build up a flat floodplain.

As the landform's name implies, another process plays a role in floodplain formation. Which of the following describes this process?Glaciers move through a river valley every winter and flatten out the landforms.

 A. Glaciers move through a river valley every winter and flatten out the landforms.

 B. A river may flood its valley and form a permanent inland sea.

 C. Acid rain weathers large rocks until they form a broad, flat plain.

 D. A river floods over its channel banks and deposits sediment on the wide valley bottom.

The number of frogs in a swamp ecosystem increased sharply. Soon, the frogs exceeded the carrying capacity of the ecosystem. How will this situation affect the ecosystem?

Describe the importance of zircon as an age-dating tool

Complentary rna to dna strand ACCGAGCTT

Microorganisms that cause disease are classified as _____.
A.pathogens
B.inorganic materials
C.thermal pollutants
D.organic materials

What is the greiss test? In forensic science?

How did the Great Depression lead to calls for renewed expansion (in Japan)

How do dating methods help to support the theory of natural selection and biological evolution? How is it different than Darwin’s original ideas on speciation? Differentiate between absolute and relative dating techniques, giving one example of each. What is punctuated equilibrium?

A patient who is pregnant has a history of recurrent genital herpesvirus (hsv). the patient asks the nurse what will be done to suppress an outbreak when she is near term. the nurse will tell the patient that:

In dominnt/recessive inheritance patter,s the dominant allele is always expressed when present. the recessive allele is only expressed when the dominant allele is not present. use your observations from this activity to describe how codominant inheritance patterns differ from dominant/recessive inheritance patterns

What type of confined space has the normal hazards presented by a confined space plus additional hazards?
A.
Permit-required
B.
Hazard
C.
Characteristic

Which does not contribute to triglyceride digestion?