In 3-5 sentences, describe how organisms like the sea turtle might adapt to the rise in ocean and air temperatures. In your explanation, describe the correlation between environmental factors and natural selection.
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Climate change is an increasing threat that scientists are trying to not only combat but prepare for future increases in temperature and rainfall. One of the effects of climate change is the warming of ocean and air temperatures. The sex of sea turtle offspring is determined by temperature during development. Temperature over 87° Fahrenheit will result in female offspring. In 3-5 sentences, describe how organisms like the sea turtle might adapt to the rise in ocean and air temperatures. In your explanation, describe the correlation between environmental factors and natural selection.
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- A. Water currents in the ocean are much stronger than any sperm. How do sperm and egg find each other? B. In humans there are no water currents and the volume of the female reproductive tract is relatively limited. Then, why does the male have so many sperm? C. Why do sea urchins have external fertilization? D. Then why don't the parents take care of the young? E. Because the urchin life involves two or more ecological niches, they are more susceptible to predation and exposure to environmental toxins. What environmental conditions, predators and toxins might they be exposed to at each stage?Some animals in captivity have reproduced without the need for a mate in a process called parthenogenesis. Examples include boas, pythons, bonnethead sharks, and komodo dragons. Initially, scientists thought this occurred because the animals were kept in optimal conditions for reproduction, but lacked access to a mate. However, scientists were surprised to discover that some species in the wild with access to mates also reproduce through parthenogenesis. An example is the pit-viper. Compare and contrast the processes of asexual reproduction through parthenogenesis and sexual reproduction for an animal such as the python. Describe the processes of i. asexual reproduction through parthenogenesis ii. sexual reproduction 2. Describe two pros and two cons of each form of reproduction. Explain each one.Consider the temperature effect in the sex determination of a turtle species represented in the graph below. 100 What effect would a decrease in temperature below the epivotal temperature have on sex ratios of these turtles? 50 FT MT Temperature Fewer males and females will result. None of the other answers is correct. No difference in the proportion of females to males will result as only colder temperatures will alter the sex ratio in the offspring. More males than females will result. More females than males will result. To Percent female O O O O
- Atrazine, a weed killer widely used in agriculture, is an chemical that can alter the reproductive systems in male frogs, according to scientists. Researchers found that long-term exposure to low levels of atrazine can chemically castrated three-quarters of laboratory frogs and turned one in 10 males into females. Scientists think that the pesticide interferes with sex hormones, such as estrogen and testosterone. From the information given to you, what term describes atrazine best? a. lipid-soluble b. endocrine disruptor c. mutagen d. genotoxicInterpret the following quotation in relation to human development. Please explain 5. All human life at every stage of its development is worthy of protection.- Marco Rubio.It is a basic idea of human biology, taught in grade schools everywhere: Identical twins come from the same fertilized egg and share identical genetic profiles. But according to new research, though identical twins share very similar genes, identical they are not. The discovery opens a new understanding of why two people who hail from the same embryo can differ in phenotype (physical characteristics), as biologists refer to a person’s physical manifestation. The new findings appear in the March issue of The American Journal of Human Genetics, in a study conducted by scientists at the University of Alabama at Birmingham and universities in Sweden and the Netherlands. The scientists examined the genes of 10 pairs of monozygotic, or identical, twins, including 9 pairs in which one twin showed signs of dementia or Parkinson’s disease and the other did not. It has long been known that identical twins develop differences that result from the environment. And in recent years, it has also…
- You want to breed turtles and choose to incubate turtle eggs at the highest temperature (36°C) in the recommended range (22-36°C). You then, unexpectedly, observe that only female turtles are produced . This leads you to ask the question: "Does incubation temperature affect a turtle's sex?" Formulate a hypothesis and shortly explain what steps you will follow to ensure that this question is answered in a scientific manner.The gender of an American alligator is determined by the temperature at which the egg incubates. A temperature of 34°C and higher produces male offspring, while a temperature closer to 30°C produces female offspring. Which statement best explains gender determination in American alligator offspring? O The gender of the offspring is determined to keep an even number of males and females in the American alligator population. O The gender of the offspring is determined to ensure a large number of mature females in the American alligator population. O The gender of the offspring is determined as a result of environmental and not genetic factors. O The gender of the offspring is determined as a result of genetic and not environmental factors. hp -> esc & 司Subject (Biology - Ecology) Question: Research how does the temperature of the sand affect the population of sea turtles? Do you believe that sand temperature determines the sex of sea turtles and why climate change is crucial to the survival of their population? DISCUSS.
- Temperature-dependent sex determination (TSD) is the method of sex determination in sea turtles. In TSD, temperature experienced during embryonic development determines the sex of the offspring. TSD is only observed in reptiles and teleost fish. The molecular mechanisms are not well understood, but the production of estrogen, which causes female development, seems to be critical. A potential pathway is shown in Figure 1. Explain the most likely gender(s) of sea turtles if TSD pattern I eggs are incubated at 92°F and an aromatase competitive inhibitor is applied.B6 mice are all genetically identical and spend more time exploring the center of an open field compared to Balb mice. If B6 mouse embryos are implanted into and raised by a Balb mouse dam, the pups will still spend more time in the center of an open field compared to Balb mice. spend the same amount of time in the center of an open field as Balb mice. spend less time in the center of an open field compared to Balb mice. not survive with a mother of a different mouse strain.Part A Consider the temperature effect in the sex determination of a turtle species represented in the graph below. 100 What effect would a decrease in temperature below the epivotal temperature have on sex ratios of these turtles? 50 Тр Temperature FT MT No difference in the proportion of females to males will result as only colder temperatures will alter the sex ratio in the offspring. None of the other answers is correct. Fewer males and females will result. O More males than females will result. More females than males will result. Percent female