The plates spread at mid-ocean ridges (they are divergent plate boundaries) which allows magma to rise through the weakness between the plates. The magma then emerges as lava from the boundary and cools, creating a new crust.
b. False
Answer:
B. False
Explanation:
Life history characteristics and survivorship patterns within a species are pre-set but may be changed according to the changes in environmental conditions needed for growth and reproduction. Allocation of energy to reproduction or other processes varies according to food availability, temperature, rainfall, etc.
Abundant resource availability favors the production of a large number of smaller offspring while limited resources make a population to produce a small number of larger progeny to increase the survival rate.
Example: Clutch size in birds is adjusted to obtain the maximum survival of progeny.
A freshwater and salt-water biome refers to the body of water (aquatic biome) that makes up about 75 percent of the surface of planet Earth.
The freshwater biome is divided into three (3) major levels or zones and these include:
1. Littoral zone: it is the shore area of a freshwater and it can either be very wide or very narrow.
Some examples of organisms found in the littoral zone are:
2. Limnetic zone: it is the open water area of a freshwater.
Some examples of organisms found in the limnetic zone are:
3. Profundal zone: it is the bottom and deep water area of a freshwater.
Some examples of organisms found in the profundal zone are:
On the other hand, a salt-water biome is divided into four (4) major levels or zones and these include:
1. Intertidal zone: it comprises these organisms;
2. Pelagic zone: it comprises these organisms;
3. Abyssal zone: it comprises these organisms;
4. Benthic zone: it comprises these organisms;
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short term energy storage
transport
build channels in cell membranes
speed up reactions
long term energy storage
structure
Proteins have multiple functions in living organisms, including enzymatic activity, transport, and structural support.
Proteins have several important functions in living organisms. They can serve as enzymes, which are molecules that speed up chemical reactions. Proteins can also act as transporters, helping to move molecules and ions across cell membranes. Additionally, proteins are essential for structural support in cells and tissues.
For example, hemoglobin is a protein that transports oxygen in the blood. It binds to oxygen molecules in the lungs and releases them to cells throughout the body. Another example is the sodium-potassium pump, which is a protein that helps maintain the balance of ions inside and outside of cells. This pump is crucial for nerve cell communication and muscle contraction.
The correct answer is fat-soluble vitamins.
The fat-soluble vitamins are soluble in lipids and usually absorbed as fat globules (chylomicrons). They are absorbed via the lymphatic system of the small intestines and then transported into the blood circulation within the body.
Vitamin A (retinol) has an important role in maintaining healthy vision.
Vitamin D (cholecalciferol) is important for bone health and development and it is produced naturally in the human body when the skin is exposed to the sun.
Vitamin E (tocopherol) is an antioxidant that can help the body destroy free radicals.
Vitamin K (phylloquinone) has a role in forming the blood clots.
The correct answer is - B) more; in total.
The urban areas use much more energy than the rural areas, by far. The reasons for that are numerous, with the two biggest being the number of people and the industry.
The number of people living in urban areas is higher than the number of people living in rural areas. Also, the people in the urban areas use much more energy because they rely on much more technology, technology that uses energy in order to work.
Most of the industry is also located in and around the urban places. The industry is a huge consumer of energy, thus increasing the usage of energy further more.
Please
Answer:
Pollination is the transfer of pollen from the male part of the flower, known as the anther, to the female part of the flower, known as the stigma. This can occur through a variety of methods, including wind, water, or through the action of animals. Once the pollen lands on the stigma, it begins to grow a tube down through the style of the flower towards the ovary.
Fertilization occurs when the pollen tube reaches the ovary and fertilizes the egg cell inside the ovule. The fertilized egg cell then develops into a seed, while the ovary develops into a fruit. The process of fertilization requires the transfer of genetic information from the male parent to the female parent, which occurs when the sperm cell from the pollen combines with the egg cell in the ovule.
After fertilization, the ovule develops into a seed, which contains the genetic material necessary for the growth and development of a new plant. The fruit, which develops from the ovary, provides protection for the seeds and helps to disperse them away from the parent plant. This process of pollination and fertilization is essential for the reproduction of flowering plants, and allows for genetic diversity and evolution within plant populations.