considering all of the different ways disease may be transmitted, which modes are more likely to cause large numbers of individuals to get sick in the u.s?

Answers

Answer 1

Answer: I have to say airborne infections. If the infection is airborne it can travel and infect many people more quickly and wide spread.

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Which is a biotic factor that affects the size of population in a specific ecosystem

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Answer:

The increase in the number of tertiary and secondary consumers causes ecological imbalances because they quickly consume primary consumers leading to their disappearance in the ecosystem. This situation can also lead to an increase in the biomass of the producers since they no longer have anyone to consume them

The number and kinds of predators in that ecosystem.

Some chemotherapy drugs act by attaching themselves to the growing strand of a DNA molecule, thus preventing its replication. Cells on which phase of the cell cycle would be affected by this drug?

Answers

The answer is S phase.

If drugs prevent DNA replication which occurs in the S phase. That means that the S phase will be affected by these drugs.

is when the cell is on the S phase.

S-Phase is the part of cell cycle when the DNA is replicating, occurring between G1 and G2 phase

If the replication is somehow prevented, the drugs is most likely affecting the S-Phase

The major light absorbing pigment in green plant photosynthesis isA)
rhodophyll.
B)
chlorophyll.
C)
cytochrome a.
D)
cytochrome c.

Answers

Chlorophyll is the major light absorbing pigment in green plant photosynthesis. the correct option in regards to the given question is option "B". For the process of photosynthesis it is important for a plant to absorb heat from sunlight to make glucose and water. The absorption of heat from sunlight is done by the chlorophyll present in the leaves. Without the presence of this green pigment in the leaves, the plants would never be able to absorb sunlight and this will ultimately lead to the death of the plant.

I think the answer would be, B. Chlorophyll

The large leaves of ferns show multiple venation what is it spores rhizomes or fronds

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The answer is fronds

If the sequence of one single strand of DNA is C-A-A-G-T-A-G-G-C-T, what is the sequence of the complementary strand?

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G-T-T-C-A-T-C-C-G-A is the complimentary sequence in DNA. This is because C pairs with G, while A pairs with T.

Who first identified nucleic acids, and where were they discovered

Answers

The first person to identify nucleic acids was a Swiss scientist Named (Johannes) Friedrick Miesher. The year was 1869. Nucleic acid was identified for the fist time.

If the question was about which part of the body it was discovered in it was in the blood cells

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By 1863, control of most of the Mississippi River was in Union hands. To gain control of the last major port city serving as an open shipping door to the South, Grant weakened the enemy with a military campaign that lasted several months. First he isolated the port city by gaining control of the railroad, and then he began a seven-week artillery siege to force surrender.What is the port city described above? A. Chancellorsville B. New Orleans C. Vicksburg D. Appomattox

Under a light microscope, a stained cell shows chromosomes lined up along the middle. What will happen next? Spindles will form and centrioles will move to opposite poles. A nuclear membrane will form around each set of chromosomes. Chromosomes will separate and move to opposite poles.

Color blindness is a recessive trait. The gene for color blindness is on the X-chromosome. The family tree below shows the trait of color blindness. The only unknown is the mother in the first generation. What is true about the mother?

What 3 things encompass biodiversity?