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3 years ago

7. Explain at least two ways in which wind pollinated plants' structures are

Biology

1 answer:

Veronika [31]3 years ago

7 0

Answer:

Wind pollinated have light and small pollen grains to be easily carried away. They also lack petals or have small ones, so that the pollen can be exposed and easily swept by wind.

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According to the Punnett Square shown above

Alexxandr [17]

Answer:

C. There is a 75% probability that an offspring will have brown eyes and a 25% probability that an offspring will have blue eyes.

Explanation:

Note that the brown eyes is the dominant trait, denoted by B, while blue eyes is the recessive trait, denoted by b. In all cases of the Punnett square, if there is a dominant and recessive trait, the dominant trait will always come out on top.

The given Punnett square:

$\left[\begin{array}{ccc}&B&b\\B&BB&Bb\\b&Bb&bb\end{array}\right]$

Note that there are 3 options (BB, Bb, Bb) respectively, in which there is the dominant trait B (brown eyes). Only in one case is there only the recessive trait b (blue eyes), or a 1/4 chance of obtaining blue eyes. Therefore, there is a 3/4 chance of obtaining a brown eye:

C. There is a 75% probability that an offspring will have brown eyes and a 25% probability that an offspring will have blue eyes.

3 0

3 years ago

Read 2 more answers

Speech about Environmental pollution

amm1812

Good morning /afternoon to one and all present here

I am here to talk about environmental pollution.

Pollution - It is defined as the addition of any substance or energy to the environment that is in some harmful form is know as a pollution

It can also be called as environmental pollution.

The environmental pollution include air pollution, water pollution, land pollution, noise pollution, light pollution, and plastic pollution

Air pollution:

It is caused mainly due to the smoke from automobiles and by the unwanted smoke sent out from factories.

They produce carbon monoxide and nitrogen oxides, ozone, lead, that leads to smog formation also causes damage to foliage It causes health issues like, heart disease, inflammation and irritation of breathing passages, breathing difficulties, particularly for people with asthma, reduced lung function,

Water pollution:

The release of substances into subsurface groundwater or into lakes, streams, rivers, estuaries, and oceans. It is caused due to the industrial waste that are disposed directly into the water.

People use the same water for drinking, washing clothes, washing animals and they take bath in the same water.

Land pollution:

This is caused by the artificial pesticides used. They pollute the soil and damage the crops and will infect the vegetables that grow underground.

Noise pollution:

This is caused by the automobiles and the sound produced by the speakers.

4 0

3 years ago

If a population has only one allele form of the gene, every individual is: select one:

katrin [286]

It is the Gene Pool. It is an accumulation of the considerable number of qualities in a populace. This can be any populace - frogs in a lake, trees in a timberland, or individuals in a town. A quality pool isn't a genuine place; it's a unique thought or a fanciful gathering.

5 0

3 years ago

Hello help please i’ll mark brainliest!!!

Xelga [282]

Answer:

I will say A, B ,and D

Explanation:

I hope I am right if not plz forgive me

6 0

3 years ago

An enzyme that can bind to and break apart molecules of lactose should also be able to bind: a. fatty acids. b. amino acids. c.

Airida [17]

Answer: Option E) None of the above is true; this enzyme could bind none of these.

Explanation:

Lactose is a dissacharide composed of glucose and galactose. Hence, the enzyme lactase break down lactose into its simple sugar constituents.

However, lactase cannot bind nor break down amino acids, starch (with only glucose units) or sucrose (with two glucose units) because their constituent molecules differ markedly from that of lactose.

Thus, the enzyme lactase could bind with none of the options provided except lactose

8 0

3 years ago