Which of the following would nost likely be found near a volcano?

During an experiment, Harry enclosed two leaves of a plant in glass flasks labeled A and B. Flask A had water and carbon dioxide

Evgesh-ka [11]

The answer here is THE LEAF IN FLASK B WILL NOT GET CARBON DIOXIDE TO MAKE GLUCOSE. In order to carry out photosynthesis, plant needs several ingredients. It needs chlorophyll, the green coloring pigment in plants, sunlight, water and carbon dioxide. To nurture growth, plant needs a favorable medium (usually good soil but there are also those that can grow attached to another plant and those called aerial plants) and nutrients. Carbon dioxide is one of the most abundant gases in the atmosphere. It plays an important role in both plant (photosynthesis) and animal (respiration) processes. In photosynthesis, green plants convert carbon dioxide and water into food compounds such as glucose and water. The oxygen released during photosynthesis is needed by animals, human also, for respiration. Potassium hydroxide, on the other hand, is an inorganic solid compound which absorbs carbon dioxide. During experiments, plants placed inside a solution with potassium hydroxide will test negative in starch test. Absence of starch is attributed to the absorption of carbon dioxide by potassium hydroxide. Photosynthesis did not happen because of the absence of one of its ingredients which is carbon dioxide,hence absence of one of the end products, starch.

4 0

3 years ago

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2. Bone

rodikova [14]

Osteoporosis causes bone density to decrease due to decreased osteoblast activity, increased osteoclast activity, and external factors like long-term medication. Option B. All choices are potential causes.

<h3>What are the factors that promote osteoporosis?</h3>

Let us first review what the bone cells are and their functions,

• Osteoprogenitores → in charge of osteocytes production

• Osteocytes → maintain the matrix

• Osteoblasts → Synthesize and secrete osteoid matrix that will later calcify

• Osteoclasts → Phagocytic cells in charge of osseous resorption and bone modulation.

Osteoporosis is a no-symptoms disease -silent- that causes a decrease in the bone mineral and mass density and might change the bone structure.

Osteoporosis weakens the bone until it breaks. So this affection becomes evident when a fracture occurs.

Several factors lead to osteoporosis development. Among them, we can mention,

genetic factors,

habits factors (lifestyle),

hormonal alterations,

drugs/medication

The increased rate of bone resorption is the major mechanism by which osteoporosis occurs. It deteriorates bone structure and decreases bone density.

Bone resorption and deterioration might be caused by

a decrease in osteoblast activity, leading to the decrease in osteoid matrix formation and calcification,

an increase in osteoclast activity, enhancing the activity of these phagocytic cells.

Other external factors also increase the probability of developing osteoporosis. Some of them are,

long-term medications (for instance, those used in cancer treatment)

excessive alcohol consumption and smoking

sedentary lifestyle

poor diet

According to this framework, the potential causes of the Osteoporosis are Decreased osteoblast activity, Increased osteoclast activity, Secondary to external factors like drugs/cancers.

Hence, <u>option B is correct</u>, All choices are potential causes.

You can learn more about osteoporosis at

brainly.com/question/8806251

brainly.com/question/9389623

brainly.com/question/7246059

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3 0

2 years ago

Which animal has blue blood ??

ValentinkaMS [17]

Answer:

spiders

Explanation:

While humans and many other species have red blood, due to the iron in their hemoglobin, other animals have different colored blood. Spiders(as well as horseshoe crabs and certain other arthropods) have blue blood due to the presence of copper-based hemocyanin in their blood. Some animals, such as the sea cucumbers, even have yellow blood.

8 0

3 years ago

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there are 3 ways that thermal energy can be transferred below write a paragraph describing each one with an example

ivanzaharov [21]

Answer:

Thermal energy can be transferred by conduction, convection or radiation

Explanation:

Thermal energy is the energy that flows from one point to another due to temperature differences between the points. There are three ways by which thermal energy is transferred which are conduction, convection and radiation.

In conduction, thermal energy is transferred in solids usually metals due to their good heat conductivity. An example is seen in the use of metals for preparing meals. Heat (or thermal energy) is transferred from the fire to the metal to the food.

Convection occurs in fluids (liquids and gases). It usually occurs in a cyclic manner. For example in heating water, thermal energy is gained by water molecules closest to the heat source (at the base of the container) and become lighter causing them to rise to the top. The molecules at the top become denser and sink to the bottom whereby they gain energy and rise in a similar manner. This repeated phenomenon occurs in a cyclic form whereby there's displacement of colder and denser molecules by warmer and lighter molecules. Another example is the occurrence of sea and land breezes.

Radiation occurs without the need of any material medium unlike conduction and convection. In radiation, heat is directly transferred from one point to the other without being transferred by molecules. This is seen in how thermal energy from the sun reaches the earth. In other words, heat is transferred in a vacuum

8 0

2 years ago

Beck (1976, 1979) found that patterns of appraisal that cause anxiety and depression tend to involve evaluations that are ______

AleksAgata [21]

Answer:

Absolute

Explanation:

Beck (1976, 1979) found that patterns of appraisal that cause anxiety and depression tend to involve evaluations that are Absolute.

3 0

3 years ago