BIOLOGY HIGH SCHOOL

Which parts of the spectrum does chlorophyll a absorb best? answers?

Answers

Answer 1
Answer:

Chlorophylls (green pigments of the plant) absorb light most strongly in the blue portion of the electromagnetic spectrum, but also the red portion. On the other hand, chlorophylls are a poor absorber of green portions of the spectrum, which it reflects and thus produce the green color of chlorophyll-containing tissues (that’s how plants are green).
Answer 2
Answer:

A simple version of everything is Red and Blue Light.

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In the case of cancer, uncontrolled cell division is a problem because it A. causes excessive white cell production. B. interferes with other cell replication. C. lowers t-cell and lymphocyte production. D. requires unreasonable hydration rates.
What evidence in a slice of bread showed the presence of gas?
The chart shows the average population of two competing weeds over a square meter of ground in a Georgia field. The chart also gives the average rainfall for five successive years. If there was an extended drought in this area, which would be a reasonable prediction?
Which path through the carbon cycle is possible?
Which factor would cause two specialized tissuesthat contain identical chromosomes to functiondifferently?(1) Specific sections of DNA molecules in thechromosomes are activated.(2) All of the sections of DNA molecules in thechromosomes are activated.(3) Specific sections of the amino acid moleculesin the cytoplasm are activated.(4) All of the amino acid molecules in thecytoplasm are activated.

Without ribosomes, a cell would not produce a.lipids.
b.proteins.
c.salt.
d.water.

Answers

Answer:

b. proteins.

Explanation:

Ribosomes are cell organelles present in the cytoplasm of prokaryotic and eukaryotic cells. In prokaryotic cell ribosome is 70S (S is the Svedberg unit) type and in eukaryotes it 80S type. Besides in cytoplasm of eukaryotic cells, mitochondrial matrix and stroma of the chloroplasts have their own ribosomes similar to prokaryotic ribosomes. Ribosomes in association with endoplasmic reticulum provide platform for the synthesis of polypeptide (protein). The transcribed mRNA is translated into primary protein on ribosomes. Lipids are synthesised by smooth endoplasmic reticulum.  
proteins 
ribbons are responsible for  making proteins in a cell

Which of the objects is living or nonliving: Bacteria, virus, moss, you, a lemon seed, the air, bread, lettuce and rocks?

Answers

Living:
Bacteria, virus, moss, you,  lettuce

Nonliving:
rocks, the air, bread, a lemon seed (kind of asleep tho)

Partulina snails were once found throughout Hawaii. There are no longer any Partulina snails in existence. What factor may have led to the snails extinction?A) increased building on the islands
B) an increase in its food source
C) developing thicker shells
D) hurricane season

Answers

The best answer is A. The factor that may have led to the snails extinction is that there is an increase buildings on the islands. The Hawaiian tree snail lives in moist rainforests. They are listed as endangered due to human disturbances. The threat came when the first settlers in Hawaii began cutting trees, replacing their habitats with agricultural lads, buildings and other infrastructure.

What do antibodies bind together

Answers

Antibodies recognize foreign invading microorganisms by specifically binding to a pathogen's proteins or antigens, facilitating their neutralization and destruction. Antigens are classically defined as any foreign substance that elicits an immune response.

Answer:

C

Explanation:

it recognize foreign substances such as bacteria

Plasma is about ___ % water.
90
70
80
95

Answers

i believe the answer is 90% 

the biome is best described as the regions of earth that support _____. A. plant life B. animal life C. all life D. human life

Answers

the best answer is plant and animal life so 
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