A) Water cannot be absorbed through the surface of a leaf.
As resources in a population become less available, the populationa. declines rapidly because there is nothing the people could use to survive.
When the exponential phase of a logistic growth curve of a population ceases
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Answer:
Influenza (The Flu)
Explanation:
Influenza (the flu virus) is a real-life example of natural selection that is most evident during an annual time period when the influenza virus infection peaks. The repeated or cyclical nature of flu outbreaks is caused by the natural selection of the virus for traits that allow it to evade the immune system and replicate, a process that actually results in new distinct strains of influenza virus.
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Answer:
A) DNA polymerase is a directional enzyme that synthesizes leading and lagging strands during replication.
Explanation:
DNA polymerase synthesizes the new DNA strand from the template strands. Both the strands in a DNA molecule act as templates, however both of them have different orientation. It was observed that 3'-5' template DNA produced a new DNA strand continuously in one step. However, 5'-3' template produced new DNA strand in fragments which were joined together later. This observation gave the idea that DNA polymerase is a directional enzyme. It synthesizes DNA in 5'-3' direction so 3'-5' template gave rise to a continuous DNA segment. However, for 5'-3' template, DNA polymerase had to synthesize in opposite direction i.e. 3'-5' which was not possible directly. So the enzyme replicates it in short separate fragments which are later joined by DNA ligase.
1.The hormones of the hypothalamus and the anterior and posterior pituitary gland are antidiuretic hormone and oxytocin and ADH.
<h3>What hormones are produced by the hypothalamus and their functions?</h3>
The hormones produced by the hypothalamus and secreted by the neurohypophysis are antidiuretic hormone and oxytocin. Antidiuretic hormone promotes an increase in urine concentration, as it ensures greater reabsorption of water by the kidneys.
2. The endocrine glands on models are :
- hypothalamus.
- Hypophysis.
- Thyroid gland.
- Parathyroid glands.
- Islet cells of the pancreas.
- Adrenal glands.
- Testicles in men and ovaries in women.
<h3>What are the general characteristics of the endocrine glands?</h3>
The main feature of endocrine glands is the absence of excretory ducts. The service product produced by endocrine cells is transported to the extra diffusion space, reaching the interior of blood vessels.
3. When an imbalance of the endocrine system occurs, it results in Hormonal disorders can be caused by various factors such as diabetes, psychological changes, stress, eating disorders, regular use of medication and cancer.
See more about endocrine system at brainly.com/question/3534540
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