Answer:
a. is composed of two layers.
Explanation:
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We have to consider that female individuals are represented by a circle, while males with a square. When these forms are shaded, what's indicated, is that they express a particular trait of consideration, which usually is genotypically represented by two recessive alleles in females, and only one in males (due to the corresponding inherited chromosomes: males have only one X chromosome, while women have two of them).
In this case, then, the genotype of the individual B in the first generation is XBXb, since only with this female genotype, the given offspring is reached.
In the Punnet square, we can see how with the mother's genotype being XBXb, there's an offspring like the exercise tell us, being green circles and squares. the healthy ones, and red circles and squares the one that has the disease.
Answer:
D)the sexually reproducing species
Explanation:
- Sexual reproduction is a mode of reproduction in which two parents are required to generate an offspring.
- As this mode of reproduction requires two parents, the genetic composition of the offspring is a mixture of both the parents and hence, sexual reproduction gives rise to genetic variation.
- Genetic variation is essential to survive in a changing environment as it can lead to the development of certain characters that prove to be essential for survival.
- Therefore, if there are 25 different species of protists in the tide pool, it is the sexually reproducing species that will be able to thrive in the changing environment as their offsprings will have genetic variation and this may lead to a positive natural selection.
The process of photosynthesis is the synthesis of food molecules from inorganic compounds using energy from sunlight.
<h3>WHAT IS PHOTOSYNTHESIS?</h3>
Photosynthesis is the process whereby green plants obtain their food (glucose) in the presence of sunlight as an energy source.
Photosynthesis takes place in two stages namely;
- Light dependent reactions
- Light independent reactions
Photosynthesis combines carbon dioxide and water as reactants as follows:
6CO2 + 6H2O = C6H12O6 + 6O2
Therefore, the process of photosynthesis is the synthesis of food molecules from inorganic compounds using energy from sunlight.
Learn more about photosynthesis at: brainly.com/question/1388366
The Earth comprises many spheres of subsystems, which associate with each other to develop a composite and spontaneously changing system of the Earth. The processes taking place in the system of the Earth occurs on spatial scales changing from fractions of millimeters to thousands of kilometers, and on time scales, which varies from milliseconds to billions of years.
The examples of instantaneous scales are a rotation of the Earth, breathing, an earthquake.
The examples of long-term scales are making coal and plate tectonics.
The system of the Earth is featured by various overlapping cycles in which matter is recycled again and again. The cycles involve interactions between multiple spheres and systems. The examples of cycles are rock cycle, day and night, and seasons.
Volcanoes discharge a huge concentration of particulate matter into the atmosphere. These particles function as nuclei for the development of droplets of water (hydrosphere). The rainfall, that is, hydrosphere usually upsurges after an eruption, initiating growth of the plant (biosphere). Thus, volcanoes and volcanic activities are a good illustration of system interactions.
