Answer:
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
The four types of nitrogen bases found in nucleotides are: adenine (A), thymine (T), guanine (G) and cytosine (C). The order, or sequence, of these bases determines what biological instructions are contained in a strand of DNA. For example, the sequence ATCGTT might instruct for blue eyes, while ATCGCT might instruct for brown. The complete DNA instruction book, or genome, for a human contains about 3 billion bases and about 20,000 genes on 23 pairs of chromosomes.
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Explanation:
The hormone produced by the placenta that stimulates the ovaries to continue producing estrogen and progesterone is called the follicle stimulating hormone. This hormone stimulates the ovarian follicle allowing the egg to grow thus producing continuous supply of estrogen and progesterone.
<h3><u>Answer;</u></h3>
Divergent evolution;
<h3><u>Explanation;</u></h3>
- Divergent evolution is the process of two or more related species becoming more and more dissimilar. In this type of evolution groups of species from the same common ancestor evolve and accumulate differences, resulting in the formation of new species.
- For example; <em><u>The red fox and the kit fox. The red fox and the kit fox both have a common ancestor but have gone through the process of divergent evolution. It has adapted to its mixed farmland and forest environment. Its red color helps it to blend in with the trees. </u></em>
- <em><u>The kit fox is sandy in appearance because it lives in the desert. It also has larger ears than the red fox and its larger ears help the fox release excess body heat in the desert.</u></em>
The right option is; b. live in trees
Arboreal animals are animals that live in trees
Arboreal animals are animals that spend most of their lives in trees. This group of animals play, eat and sleep in the tree canopy. Examples of arboreal animals include monkeys, tree snakes, possums, koalas, parrots sloths, chameleons and many rodents. These animals have special adaptations such as elongated limbs and long tails, feet and claws and special movement pattern that aid their arboreal lifestyles.
Biopsychologists who study the physiological correlates of psychological processes by recording physiological signals from the surface of the human body are often referred to as<u> psychophysiologists</u>.
In the field of psychology, psychophysiology or biopsychology can be described as the study of psychology that focuses on the physiological bases for psychological responses.
Physiological signals such as the heart rate, the muscular activity of the skeletal muscles, skin conductivity etc are recorded and their relation to a certain psychological response from a person is studied under psychophysiology by the psychophysiologists.
The combination of these two aspects i.e psychology and physiology shows that certain emotional or mental Reponses occur due to abnormalities in some physiological signal.
To learn more about biopsychology, click here:
brainly.com/question/2061024
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