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LUCKY_DIMON
4 days ago
5

DNA plays a major role in heredity, composing the genes that are passed down from parent to offspring. It also plays a major rol

e in the everyday workings of your cells. It does this by creating molecules, such as enzymes, that regulate cell functions.
These enzymes belong to a larger class of molecules known as
A) RNA.
B) proteins.
C) ion pumps.
D) amino acids.
Biology
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What would be direct consequences from decreasing angiosperm biodiversity? Select all that apply. extinction of animals balancin
vlada-n [2515]

Answer:

reduction in potential medicines

decreased food supply

Explanation:

The direct impacts of a decline in angiosperm biodiversity include a decrease in accessible medicines and food sources.

Angiosperm biodiversity, or flowering plants, serve as essential food sources for numerous living organisms, including humans, clearly demonstrated in human agricultural practices. Various consumer categories within ecosystems rely heavily on flowering plants for sustenance, whether directly or indirectly.

Moreover, they also provide medicinal resources. For instance, chloroquine, a principal treatment for malaria, is derived from the flowering plant Chinchona pubescens.

Many species of flowering plants remain uncatalogued in the wild, holding potential for future food and medicinal applications.

Therefore, a loss in flowering plant diversity will directly lead to a reduction in available food and medicine.

3 0
2 months ago
Calculate the factor by which grain size increases with each texture category
11111nata11111 [2571]
The size of a grain refers to the individual diameter of a grain segment or a lithified particle in clastic rock (which contains fragments). On the other hand, grain texture relates to the feel, appearance, or consistency of a rock or any structure. The relationship between the increase in grain size and its texture depends on its composition; specifically, how size correlates with texture. However, the behavior remains independent in cyclic polycrystalline copper.
6 0
2 months ago
Drag and drop the appropriate labels into position to explain how this defect might cause mr. g's other problems.
Rainbow [2354]

How does the altered circulation in Mr. G correlate with his symptoms? Drag and drop the appropriate labels into the correct sequence to clarify how this defect could lead to Mr. G's other issues. Complete the boxes in order, starting with 1, then 2, etc.

(Image attached)

Answer:

  1. When the left ventricle contracts, a portion of the blood flows through the mitral valve into the left atrium. Turbulent flow within the valve results in a systolic murmur, causing the atrium to become overfilled and dilated.
  2. Some blood returning through the mitral valve means less blood is ejected into the aorta, leading to an ejection fraction of just 43%.
  3. The reduced flow into the aorta results in lower SBP. The baroreceptor reflex triggers an increase in heart rate; the left ventricle's wall, under stress, thickens.
  4. Due to being partly filled with blood from the ventricle, the left atrium can receive less blood from the lungs, causing the lungs to become fluid-overloaded, leading to difficulties in breathing.

Explanation:

A murmur arises from abnormal heart blood flow. It produces unusual sounds heard between heartbeats. A systolic murmur happens when heart muscles contract, within the intervals defined by S1 and S2.

From the information presented, it appears Mr. G is suffering from mitral regurgitation. This condition occurs when the mitral valve fails to close tightly, causing blood to flow back from the left ventricle into the left atrium.

8 0
3 months ago
Give three instantaneous scale (time) examples of Earth's systems, two long-term scale (time) examples of Earth's sytems, and th
Rainbow [2354]

Earth system processes occur across a range of spatial dimensions from mere millimeters to many kilometers, while their temporal scales span from milliseconds to billions of years.

<span>Examples of immediate actions include breathing, the Earth’s rotation, and earthquakes.<span>Examples of extended actions include coal formation and plate tectonics.</span></span>
4 0
2 months ago
Read 2 more answers
4. Many commercial grow lights deliver light mostly in the yellow/red part of the spectrum, along with smaller portions of all o
enyata [2506]

Answer and Explanation:

Such lights can indeed encourage the growth and reproduction of plants.

This occurs because growth, chlorophyll synthesis, flowering, and fruiting are dependent on a specific range of light wavelengths measuring 640-720 nm. While plants naturally absorb this range from sunlight, cultivation lamps that emit this spectrum, corresponding to the yellow/red light, can be used when natural sunlight is insufficient.

6 0
2 months ago
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