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2 years ago

Which of the following supports the theory that the Universe is expanding?

Biology

2 answers:

Nana76 [90]2 years ago

6 0

A, redshift I’d galaxies, because it shows they are moving away

spin [16.1K]2 years ago

4 0

Blueshift of lights from distant galaxies

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What are the differences in their hard parts, distribution, reproduction among phytoplankton of cyanobacteria, diatom, coccolith

Margarita [4]

Answer:

Explanation:

DIFFERENCES BETWEEN HARD BODY PARTS.

•Cyanobacteria have calcified sheaths.

• Diatoms have hard but porous cell wall.

• Coccolithophores have hard body parts.

• Silicoflagellates skeleton is composed of opaline silica.

• Dinoflagellates do not have hard body parts

• Green algae - no hard body parts.

• Brown algae - no hard body parts.

DIFFERENCES BETWEEN DISTRIBUTION

• Cyanobacteria are found almost in every terrestrial habitat on planet.

• Diatoms are found in oceans, freshwater, soil and damp.

• Coccolithophores are exclusively marine.

• Silicoflagellates are found in marine environment.

• Dinoflagellates are both freshwater and marine.

• Green algae grow on objects that do not move such as substrate, rock.

• Brown algae - wide distribution from tropical to polar zones.

DIFFERENCES BETWEEN REPRODUCTION.

• Cyanobacteria - asexually by binary or multiple fission, fragmentation, spore formation.

• Diatom - asexually by cell division through mitosis.

• Coccolithophores - asexually by binary fission.

• Silicoflagellates - asexually

• Dinoflagellates - asexually

• Green algae - sexually or asexually by cell division, fragmentation, spore formation.

• Brown algae - sexually and asexually.

5 0

2 years ago

A gardener accidentally trims the leaves of a green plant too short. The leaves are now much smaller. He notices that the plants

Tamiku [17]

I believe the correct answer from the choices listed above is option D. The sentence that best explains why the plant grows more slowly would be the plant has less cholorphyll to produce energy. Since it can be found in the leaves of the plant. Hope this answers the question.

3 0

3 years ago

Read 2 more answers

In numerous studies, treatment of prion preparations with ionizing and UV radiation does not reduce transmission of disease; how

mel-nik [20]

Answer:

A. Prions do not contain genetic information, which is affected by ionizing radiation.

B. Denaturants may affect the tertiary structure of prions.

C. Prions are proteins.

Explanation:

Prions are the proteinaceous infectious particles that cause many degenerative diseases of neurons in both animals and humans. They consist of only protein and no DNA or RNA. Due to the absence of DNA or RNA as genetic material, these infectious particles are resistant to ionizing radiation. Ionizing radiations affect nucleic acids of pathogens to destroy them.

Denaturation of proteins affects their secondary and tertiary structures and leave them non-functional. Denaturation may be caused by changes in temperature, pH, disturbance of hydrogen bonds, etc. Therefore, to destroy prions, they need to be denatured.

7 0

3 years ago

The only mammal naturally capable of true sustain flight is

goldenfox [79]

the only flying mammal is a Bat

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3 years ago

what is a Ballad poem, is it a long, melodious poem that narrates a story or a long poem with a complex plot, elevated language,

natali 33 [55]

A ballad poem is a poem or song narrating a story in short stanzas. It is a popular narrative song passed down orally. In the English tradition, it usually follows a form of rhymed (abcb) quatrains alternating four-stress and three-stress lines. Folk (or traditional) ballads are anonymous and recount tragic, comic, or heroic stories with emphasis on a central dramatic event.

ANSWER: a long, melodious poem that narrates a story

8 0

3 years ago