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VARVARA [1.3K]
3 years ago
9

4. What is the purpose of a channel protein?

Biology
1 answer:
andrew-mc [135]3 years ago
3 0

Answer: facilitate the transport of substances across a cell membrane.

Explanation:

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A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's father was six
Degger [83]

Answer:

1/4.

Explanation:

The autosomal dominant trait means that the trait is visible in homozygous dominant and in heterozygous condition. The X linked recessive trait will be pass down from mothers to their sons and daughters will show the trait in homozygous recessive condition only.

The man is achandroplastic dwarf ( Aa) with normal vision (XY ) is married with woman that has normal height (aa) with color blind (XhXh). They have a daughter who is dwarf ( Aa). The probability of being dwarf can be calculated by the cross Aa × aa. The offspring are Aa, Aa, aa, aa. Means 1/2 are the probability of being hetterozygous for achondroplastic . The vision probability is calculated by cross XY and XhXHh. The probability that female is heterozygous is 1/2.

So, the heterozygous probability for both trait is 1/2× 1/2 = 1/4.

3 0
3 years ago
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
Explain thoroughly how “snow” occurs
KatRina [158]
When tiny ice crystals in clouds stick together to form snowflakes, the result is snow. If enough crystals form a clump, they'll become heavy enough to fall to the ground. When temperatures are cold and moisture in the form of tiny ice crystals exists in the atmosphere, snow forms.
6 0
3 years ago
The immune response can readily evolve to keep pace with changing microorganisms.
Montano1993 [528]
True. Immune response is always changing. Hense our immune system is what keeps us healthy.
3 0
3 years ago
The _____ is the combination of advertising, personal selling, sales promotion, social media, and public relations that is used
ki77a [65]

Answer:

The correct option is C. Promotional mix

Explanation:

In marketing, promotional mix can be described as one of the four Ps of the marketing strategy. The purpose of promotional mix is to enhance profit and set the sale goals. The strategies used to reach this goal are :

Advertising: Advertising is the best way in which more number of people will recognize the company.

Personal selling: In this strategy, the sales representative directly approaches the customers to convince the customers to buy their product.

Sales promotion: The sales promotion refer to giving off on a product so that more number or people by the product.

Social media: Nowadays, social media is the most powerful tool to enhance customers for a product.

3 0
3 years ago
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