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3 years ago

Which statement describes the weather and climate in a tropical region?

Biology

2 answers:

Varvara68 [4.7K]3 years ago

6 0

Answer:

The angle of the Sun’s rays affects daylight hours, creating warm temperatures all year.

Explanation:

Scilla [17]3 years ago

4 0

The angle of the Sun’s rays affects daylight hours, creating warm temperatures all year.

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CUGGCUAC

Degger [83]

Template DNA 5' GATTCAGAGA 3'

Complemntary strand 3' CTAAGTCTCT 5'

5' GAUUCAGAGA3' mRNA strand

codes of mRNA GAU, UCA, UAG

Explanation:

5' GATTCAGAGA 3' is the example of DNA strand having the sequence.

The DNA strand is leading strand and is in 5' to 3' direction

the complementary DNA strand is formed in 3'to 5' direction as the strand of 5' to 3' acts as a tempelate for complementary strand.

During replication which is semiconservative a new template is formed by adding the nucleotides to the growing strand.

DNA synthesis always takes place in 5' to 3' direction.

5' GATTCAGAGA 3'

3' CTAAGTCTCT 5' Complemntary strand

Transcription is a process in which DNA sequence is transcribed into mRNA which carries codes for amino acids.

The 5' to 3' strand is called sense strand

3' to 5' strand is called antisense strand. mRNA is transcribed from antisense strand and is a copy of sense strand.

so the transcribed DNA strand as mRNA will be shown as:

3' CTAAGTCTCT 5'

5' GAUUCAGAGA3' mRNA strand

GAU codes for = Aspartate

UCA codes for = serine

GAG code for = glutamate (when due to mutation GAA will become GAG)

A will not code as it is not in triplets.

8 0

3 years ago

Algae live on the riverbeds of Bartlet National Park. These algae absorb light from the Sun and use it to make their own food. M

Artemon [7]

See the file I attached for more information

Answer: The image at the top right corner of the page is the answer.

Explanation:

In the food web, arrows are pointed towards the consumer (not otherwise). In essence, two arrows should be pointed towards mouse, since it feeds on both algae and grass. While a single arrow is to be pointed to wolf, since it only feed on mouse.

Thus, the image at the top right corner of the page is the answer.

5 0

4 years ago

I need help please

777dan777 [17]

Explanation:

A. Creativity

Creativity is a characteristic or trait in scientists or other answer seekers that allows them to think out of the box. It allows them to look through different perspectives to find new or other solutions to a problem.

4 0

3 years ago

Read 2 more answers

Place these events in the correct order of occurrence in the muscle contraction: End plate potential triggers an action potentia

Sunny_sXe [5.5K]

Answer:

1. Acetylcholine binds to receptors on the motor end plate

2. Ligand-gated channels open leading to depolarization

3. End plate potential triggers an action potential

4. Transverse tubules convey action potentials into the interior of the muscle fiber

5. Calcium is released from the sarcoplasmic reticulum

6. Calcium ions bind to troponin, which then moves tropomyosin

Explanation:

Acetylcholine (ACh) is a signaling molecule (neurotransmitter) that binds to receptors on muscle cells. This binding triggers the opening of ligand-gated sodium channels, thereby ions enter into muscle cells, which causes the depolarization of the sarcolemma and thus promotes the release of Ca2+ ions from the sarcoplasmic reticulum. The myoneural junction, also known as the motor endplate, is the site of synaptic contact between a motor axon and a skeletal muscle fiber. The endplate potential is the voltage that produces the depolarization of muscle fibers when ACh molecules bind to their receptors in the cell membrane. This depolarization spreads in the sarcolemma through transverse tubules (T tubules) and thus generates an action potential. Finally, this action potential induces the release of Ca2+ in the sarcoplasmic reticulum, which activates troponin protein and induces muscle contraction.

4 0

3 years ago

Consider two mammalian cells, one in G1 and the other in G0 (stationary) phase. If they are stimulated to pass the restriction p

Kamila [148]

Answer:

A, Both cells will replicate their DNA.

Explanation:

During the cell division, cell passes through several phases and divides. Before each phase, the cell has to pass through the checkpoints. At these cell checkpoints, the cell receives the internal and external signals.

When the cell is arrested at G₀ phase, the cell does not divide until it receives a signal to proliferate but when the cell passes the G₁ phase, the cell will divide continuously.

In the given question, if the cells when in their G₀ and G₁ phase receive proliferation signal, the G₀ phase cell will also divide and will replicate it DNA during S phase as G₁ phase cell will do.

Thus, Both the cells will divide their genetic material.

8 0

3 years ago