The homo erectus is the most common ancestor with modern humans
Frog temperature. Frogs are ectotherms, this means they gettheir heat from external sources. They are sometimes called 'cold blooded', but in fact they do not have cold blood, it is justregulated by their environment. In comparison, humans are endotherms and can maintain their body temperature at about 37°C.
Answer:
The correct answer will be-
1. Observation-option B.
2. Hypothesis-option A.
3. Experiments- option C.
Explanation:
A scientific method involves various steps to explain a natural phenomenon of nature. It begins with making an observation which leads to asking the scientific question. The researcher does background research and proposes a hypothesis which could be tested through experiments. The experiments could prove or disprove the hypothesis based on the results.
In the given question the observation made is an equal amount of A and T and G and C are observed. It leads to a hypothesis which shows that this could have happened due to the winding of two strands of DNA and the experiments was performed through X-ray diffraction pattern.
Thus, the selected options are the correct answer.
The pregnant woman should be able to reiterate the meaning of breastfeeding such as it is best for babies, economical, easily digested, reduces risk of allergies,milk does not spoil, good for mothers as well. She should also demonstrates some of the different types of breastfeeding positions like cradle hold, crossover and football hold.
Answer: Option D) is where cellular respiration occurs.
Explanation:
The mitochondria of the cell is a double-membraned organelle and serve as a site of respiration in plant and animal cells.
Thus, the generation of energy in form of ATP molecules occur within the inner membrane of the mitochondria.
