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34kurt
1 year ago
12

What is the advantage of frog eggs floating light side down?

Biology
1 answer:
Nina [5.8K]1 year ago
3 0
The light side of the eggs contains yolk in the vegetal cytoplasm. The upper half divides more fastly and is known as an animal hemisphere of the cell. The presence of yolk on the lower side allows space for the upper portion, for the movements of the embryo.
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2. Which agricultural specialist is most likely to perform research to understand factors impacting the pH of soil?
Zina [86]

Answer:

D. Agronomist

Explanation:

Agronomists are professionals that study how to make soils more productive (in terms of food) around the world. Soil pH is an index that calculates the acidity/alkalinity of the soil, which is indicated on a 14-point scale (pH equal to 7 = neutral; pH below 7 = acidic,  pH higher than 7 = alkaline). In this regard, it is well known that the pH of the soils drastically affects plant development, and thereby a proper soil pH is fundamental to ensure optimal plant growth (required for nutrient intake). For this purpose, agronomists are in charge of studying and researching the pH of the soils in order to increase crop yields. Nowadays, the pH of the soils can be easily measured by digital soil pH pocket testers that utilize a pH electrode in order to calculate the pH value.

7 0
1 year ago
Which is a purpose for which a pedigree chart might be prepared? to determine the gender of a fetus to determine if a fetus has
Anarel [89]
The purpose for which a pedigree chart might be prepared is to identify the pattern of inheritance of a particular trait.
This pedigree chart is created so as to see which traits this new offspring has inherited from its ancestors and which may possibly be transferred onto a new offspring later on in its life. It is formed in order to find patterns of inheritance and see what the most important traits that get inherited are.
3 0
2 years ago
Read 2 more answers
Sunny makes a poster showing the levels of organization in the human body. how can sunny correct his error? check all that apply
bogdanovich [222]

Answer:

Arrow B should point to the organ.

Arrow C should be reversed.

wow you must have waited along time and probably got threw

with this

8 0
1 year ago
Which of the following descriptions explains the process of water freezing?
Olenka [21]

Answer: B. Water molecules slow down until they begin to bond together.

Explanation: When water is cooled, energy is removed from the system, and the molecules begin to slow down. When the  molecules have slowed suciently, their collisions are no longer energetic enough to overcome their electrostatic attraction, and  they begin to bond together. The other answer choices are inaccurate. Since ice is less dense than water, high pressure  compresses the ice and actually causes it to melt. (Compression has no effect on water volume.) Cooling has no effect on the  shape of individual water molecules.

3 0
2 years ago
Which type of cell adhesion is useful for anchoring cells together and defending against shear forces on tissues
Angelina_Jolie [31]

Answer:

Desmosomes

Explanation:

Desmosomes are cellular structures that adhere to neighboring cells. Its function is to hold the epithelial cells together, associating the intermediate filament cytoskeletons of neighboring cells, thus forming a transcellular network with high resistance to mechanical traction. It thus allows the cells to maintain their shape and the epithelial sheet to exist in a stable form. Inside cells act as anchoring sites for intermediate rope-shaped filaments, which form a structural network in the cytoplasm providing a certain rigidity. Through these junctions the intermediate filaments of the adjacent cells are indirectly connected forming a continuous network that extends throughout the tissue.

7 0
1 year ago
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