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2 years ago

How does weathering affect people?

Biology

1 answer:

hammer [34]2 years ago

7 0

Answer:

Weathering is very important to human life since it helps us to describe the formation of various landforms, leading to the formation of building materials like clay and the remnant of weathered rock like granitic tors can act as a tourist attraction.

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Can someone write the first paragraph

Katena32 [7]

Hii!!

The purpose of mitosis is to create two new perfectly identical cells when either there is a need to replace old or damaged cells and to reproduce asexually by making new cells. Some organisms use mitosis to replace body parts. For example starfish replace lost arms by mitosis. Some organisms such as the hydra use mitosis to produce genetically identical offspring.

There are four stages of mitosis: prophase, metaphase, anaphase and telophase.

1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres

2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell)

3) Anaphase: sister chromatids are pulled to opposite poles of the cell

4) Telophase: nuclear envelope reforms, chromosomes unfold into chromatin, cytokinesis can begin

● The order of the stages of mitosis can be remembered using the mnemonic PMAT.

Hope this helps!! if it has pls mark me as the brainliest Xd :D

4 0

2 years ago

Usatestprep--According to the model, what is the role of maltose in the maltose operon?

allsm [11]

Answer:

<u>Inducer</u>

<u></u>

Explanation:

Structural proteins within bacteria are encoded along with their functions. These are typically found in a block of genes called an operon. They undergo transcription together with the use of a single promoter sequence to form a polycystronic transcript- this allows for the simultaneous control and regulation of biochemical pathways. This is efficient as these pathways would either need to function together when "switched on" or will not be needed when "switched off". Repressors are proteins that effectively hinder translation by binding to DNA at the operator site, blocking the activity of RNA polymerase in transcription. However inducers are small molecules that can displace these, freeing up the operon for transcription and the activation of relevant biochemical pathways.

The mal operon includes genes which mediate the breakdown of the substrate maltose in bacterial cells. Maltose, called a malt sugar, is a carbohydrate compound made up of two glucose molecules joined by an α-(1,4) glycosidic linkage.

In the presence of maltose, the inducer binds to the activator. This then allows for the binding of RNA polymerase, which facilitates translation and th epr

5 0

3 years ago

Read 2 more answers

I do not fully understand the question

maxonik [38]

Answer:

Explanation:

3 0

3 years ago

Genetic disorders caused by multiple genes interacting with the environment are called

Elan Coil [88]

Multifactorial disorder

Multifactorial disorders are disorders that involve variations in multiple genes joined with environmental causes. Diseases such as heart disease, type 2 diabetes, and obesity are multifactorial disorder as they do not have single genetic cause but are caused by a combination of environmental factors and life style with mutations in multiple genes.

3 0

3 years ago

The humerus is the: select one:

Katarina [22]

Bone in the upper arm. called humerus

4 0

3 years ago