Pregnancy is declared from the appearance of beta HCG hormone in the woman's urine or blood.
The hormone HCG (Gonadotropic Chorionic Hormone) is secreted by the placenta from the implantation of the embryo into the uterus. If there has been fertilization, the HCG rate exceeds 8 IU at implantation and then starts to double every other day.
So we can conclude that pregnancy is described at the stage of implantation.
Answer:
Type I or convex curves are characterized by high age-specific survival probability in early and middle life, followed by a rapid decline in survival in later life. They are typical of species that produce few offspring but care for them well, including humans and many other large mammals.
Explanation:
sorry if this does not help
<span>An experimental design would be the most appropriate assuming she has access to the appropriate materials. She could set up an experiments where she has some cells and in one batch of cells she could raise the temperature and in the other batch she could do nothing. Then she can compare the cell division rate.</span>
1) Each level losses<u> 90% </u>of energy that was contained in the previous level. 2)Protozoa (Producer), snail, shrimp, amphipods (Primary consumers), Salamander (Secondary consumer), Intestinal roundworm (Tertiary consumer), fungi (Decomposer).
<h3>
What is the 10% rule in trophic webs?</h3>
The 10% rule states that at each trophic level occurs an energy transference from one of the levels to the next, with only 10% being usable in each of them.
As a general rule, only about 10% of the energy stored as biomass at one trophic level -per unit time- ends up as biomass at the next trophic level -in the same unit of time.
The remaining 90% of energy is lost to the environment as heat.
The progressive reduction of energy determines the number of trophic levels (4 or 5).
In the xposed example,
1) Each level losses<u> 90% </u>of energy that was contained in the previous level.
2)
- 1st level: Protozoa ⇒ Producer
- 2nd level: snail, shrimp, amphipods ⇒ Primary consumer
- 3rd level: Salamander ⇒ Secondary consumer
- 4th level: Intestinal roundworm ⇒ Tertiary consumer
- 5th level: fungi ⇒ Decomposer
You can learn more about the 10% rule at
brainly.com/question/18254335
#SPJ1
A bay, inlect, sea loch or fjord are some possibilities.
Hope this helped, have a great day! :D
