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3 years ago

98 points will mark brainliest please hurry

Biology

1 answer:

ELEN [110]3 years ago

4 0

The formula for photosynthesis is 6CO2 + 6H2O + light energy = C6H12O6 + 6O2.

1. organelle

2.cells

3.tissues

4. organs

14.The point is, without the respiratory system your blood would be useless. The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles.

15.The skeletal system provides the framework for the body. While the muscular system consists of the soft tissue that lies over and supports the skeleton.

16.A biome is a community of plants and animals that have common characteristics for the environment they exist in.

18.Climate is the most important abiotic factor affecting the distribution of terrestrial biomes. Climate includes temperature and precipitation, and it determines growing season and soil quality.

19.Climate is the weather of a place averaged over a period of time, often 30 years. Weather is the day-to-day state of the atmosphere, and its short-term variation in minutes to weeks.

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What percent of their female progeny will show the cleft chin trait?

rusak2 [61]

Almost all female progeny show the cleft chin trait so the percent would be 100%. This trait is normal called as dimples on the cheek. When you have cleft chin, it is quite possible that they have two dominant alleles or sometimes one dominant and one recessive allele.

6 0

3 years ago

When two experiments are identical except for one variable, the experiment is called a(n) _____.

zzz [600]

Controlled experiment

8 0

3 years ago

22. A plant geneticist is investigating the inheritance of genes for bitter taste (Su) and explosive rind (e) in watermelon (Cit

mylen [45]

Answer:

See the answer below

Explanation:

Using the formula for calculating Chi square ( $X^2$ ):

$X^2$ = $\frac{(O - E)^2}{E}$ where O = observed frequency and E = expected frequency.

The observed frequencies for the four phenotypes are 88, 62, 62, and 81 respectively.

For the expected frequency, the phenotypes are supposed to assort in 9:3:3:1 according to Mendel ratio.

Hence, expected frequencies are calculated as:

phenotype (1) = 9/16 x 293 = 164.81

phenotype (2) = 3/16 x 293 = 54.94

phenotype (3) = 3/16 x 293 = 54.94

phenotype (4) = 1/16 x 293 = 18.31

The $X^2$ is calculated thus:

Phenotype O E $X^2$

1 88 164.81 $\frac{(88 - 164.81)^2}{164.81}$ = 35.80

2 62 54.94 $\frac{(62 - 54.94)^2}{54.94}$ = 0.91

3 62 54.94 $\frac{(62 - 54.94)^2}{54.94}$ = 0.91

4 81 18.31 $\frac{(81 - 18.31)^2}{18.31}$ = 214.64

Total $X^2$ = 35.80 + 0.91 + 0.91 + 214.64 = 252.26

To the nearest tenth = 252

Degree of freedom = n - 1 = 4- 1 = 3

$X^2$ tabulated = 7.815

The calculated  $X^2$  exceeds the critical value, hence, the null hypothesis is rejected. The two genes did not assort independently. 

4 0

3 years ago

PLZ HELP What would happen if a cell dissolved in water like sugar does

Ugo [173]

Water would move from outside to the inside of the cell through the semi permeable cell membrane and cause the cell to swell.

3 0

3 years ago

Your mother is considering changing her diet to include only non-meat proteins to reduce her risk of developing heart disease or

user100 [1]

B) Plant-based diets are usually lower in saturated fat and higher in fiber, which reduces risk of heart disease.

Saturated fats increase the risk for heart disease, so they should be kept lower. Fiber may help reduce overall calorie intake by keeping you full for longer. That way you maintain a healthy weight, which is important for reducing cancer risk.

3 0

3 years ago

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