Can someone please help me with 1 evolution question ?

1 answer:

8 0

Antibiotic resistance is a consequence of evolution via natural selection. The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce. They will then pass this trait to their offspring, which will be a fully resistant generation.

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Which term refers to a variable that is dependent on another variable during an experiment? O A. Responding variable O B. Random

aleksandrvk [35]

Answer:

c. independent variable

Explanation:

#<em>c</em><em>arryonlearning</em>

8 0

3 years ago

If a father is affected by an X-linked dominant condition and the mother is not, which children can inherit the condition?

kaheart [24]

Answer:

only females

Explanation:

In humans, sex chromosomes in males and females are different. The sex chromosomes found in humans are X and Y chromosomes. X-linked trait is a trait which is inherited on the X- chromosome. According to the question, the trait is passed on a X-linked dominant condition, which means the condition is inherited on the abnormal dominant X-chromosome that will express itself even when in an heterozygous state with a normal X-chromosome.

Hence, a father affected by the condition will have a genotype; XY while a mother that does not have the condition will have a genotype: xx (two normal x chromosomes). Since the Father can only pass his X chromosome to his daughters and never his sons, all his daughters will inherit the condition (see the punnet square in attached image).

N.B: None of the sons will inherit the condition since the mother will pass normal X-chromosomes (x) to her sons.

7 0

3 years ago

Pus in a body cavity, especially the pleural cavity is called:

rusak2 [61]

The pleural cavity is the thin fluid-filled space between the two pulmonary pleurae (known as visceral and parietal) of each lung. A pleura is a serous membrane which folds back onto itself to form a two-layered membranouspleural sac. The outer pleura (parietal pleura) is attached to the chest wall, but is separated from it by the endothoracic fascia. The inner pleura (visceral pleura) covers the lungs and adjoining structures, including blood vessels, bronchi and nerves. The pleural cavity can be viewed as a potential space because the two pleurae adhere to each other (through the thin film of serous liquid) under all normal conditions.

6 0

3 years ago

A large hurricane destroys a coastal habitat. what type of disruptive event does this describe?

Angelina_Jolie [31]

Answer:

periodic

Explanation:

8 0

3 years ago

Read 2 more answers

How is the genotype of the offspring different from that of the homozygous dominant parent?

tatuchka [14]

Since it's been crossed with a homozygous wrinkled green, the offspring has a genotype for heterozygous round and yellow. As round and yellow are dominant traits, they're expressed in the phenotype. But when self pollinated in the f2 generation, the recessive ones will show as well

Hope it helps :')

8 0

3 years ago