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Anvisha [2.4K]
3 years ago
7

What happens when the diaphragm is pulled down (Do you inhale or exhale)?

Biology
1 answer:
uysha [10]3 years ago
4 0

Answer:

Inhale

Explanation:

When the diaphragm is pulled downwards, it increases the volume  and decreases the air pressure within the thoracic cavity, and you inhale.

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Modern cetaceans, the taxonomic group that includes whales, dolphins, and porpoises, evolved from land mammals. However, it has
GenaCL600 [577]

Answer:

Taxonomy may be defined as the branch of biology that mainly deals with the classification, arrangement and nomenclature of the organism. Organism are classified into the different taxa depending on their similarities and differences.

The shared characters may be defined as the characters that are share among the two lineages. As given in the question, the two humps that are present on the bottom end of  Pakicetus ankle bone is the shared distinguish character with the other ungulates that are even toed.

7 0
3 years ago
The water cycle involves the constant movement of water from the ground to the atmosphere. Which of these
natita [175]

Answer:

Evaporation, Condensation, Precipitation and Collection

Explanation:

I just referred to water cycle on the internet.

5 0
3 years ago
How much 3M NaOH (MW=40) can be made from 10.0mL of a 10M solution?
vaieri [72.5K]

Explanation:

The given data is as follows.

              M_{1} = 3 M,           V_{1} = ?

              M_{2} = 10 M,         V_{2} = 10.0 ml

Therefore, calculate the volume of given solution as follows.

              M_{1} \times V_{1} = M_{2} \times V_{2}

Now, putting the given values into the above formula as follows.

            M_{1} \times V_{1} = M_{2} \times V_{2}

            3 M \times V_{1} = 10 M \times 10.0 ml    

                   V_{1} = 33.3 ml

or,                             = 0.033 L        (as 1 ml = 0.001 L)

Since, molarity of NaOH is given as 3 M and its volume is calculated as 33.3 ml.

           Molarity = \frac{\text{mass of solute}}{\text{molar mass of solute}} \times \frac{1}{\text{volume in L}}

               3 M = \frac{mass}{40 g/mol \times 0.033 L}

              mass = 3.96 g

Therefore, we can conclude that mass of NaOH is 3.96 g.

8 0
3 years ago
Briefly describe the main hormonal and physiological events of each of the following:the uterine cycle
Hunter-Best [27]

Answer:

Menstruation, the follicular phase, ovulation and the luteal phase.

Explanation:

Menstruation, the follicular phase, ovulation and the luteal phase are the four events or phases of the menstrual cycle. Luteinizing hormone, follicle-stimulating hormone, and the female sex hormones i.e. estrogen and progesterone are the types of hormones that controls the uterine cycle. Each event in the uterine cycle has its own significance in the female body.

8 0
2 years ago
German scientist carl correns found that the inheritance of variegated color on the leaves of certain plants was determined only
Anna71 [15]

The answer is extrachromosomal, or cytoplasmic, inheritance, or non-Mendelian inheritance. An example in humans is mitochondrion inheritance. Mitochondria are only passed from mother to offspring since only the egg has mitochondria while sperm does not. The name of the German scientist who discovered this type of inheritance was called Carl Correns.






6 0
3 years ago
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