Which material undergoes radioactive decay?

Biology

2 answers:

OlgaM077 [116]3 years ago

8 0

Answer:

all elements that have a consistent number of particles

Explanation:

patriot [66]3 years ago

5 0

A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay, beta decay, and gamma decay, all of which involve emitting one or more particles or photons.

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Where in an equation for photosynthesis does glucose belong?

Orlov [11]

Answer:

left because its a reactant

Explanation:

7 0

3 years ago

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A chromosome has undergone a translocation that has completely deleted its centromere region, preventing association with spindl

kobusy [5.1K]

Answer:

<h2>The cell will not pass the M checkpoint because its chromosomes will not associate with spindle fibers. or if the cell goes complete division, then the homologous chromosomes will go into either daughter cell.</h2>

Explanation:

As in the cell cycle, there are various checkpoints, which checks the cell in many steps like G1/S checkpoint, G2, M etc. They check the integrity of the genome, if there is any defect in the DNA/chromosome, it arrest the cell cycle.

Centromere is the region on the chromosome which binds with spindle fibers and is used in the separation of chromosomes during anaphase of cell cycle. If there is deletion of centromere, then the separation of chrmosome will be affected. Then the homologous chromosome can either go into one of the daughter cell, so one cell will get 2n+1 and other will get 2n-1.

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4 years ago

Which best describes the role of a primary consumer in a food web? Carnivore that feeds on producers Herbivore that feeds on pro

Andreyy89

Hello there! :D

First of all, let me put in a picture of a food web for you to reference!

(you should see it below)

Let's talk about how a food web works. Many science books will tell you that a food web is like a pyramid, but this could not be more false! A food web shows the relationship between consumers and producers within any given ecosystem. Sometimes it is not as simple as a line or diagram, because some animals can be both primary, secondary, and teriatry consumers (us!!).

Look at the food web below, and see the grass that eventually is eaten by the grasshopper. We know that the primary source of energy for plants is the sun, which is not included in the web, but just so you know for reference for future questions. What thing in this web supplies the energy for the entire food chain? The producers! This would be the grass and the planktin you see in the web.

What is the difference between primary and secondary consumers?

Glad you asked! Primary means first, and secondary means second. Primary consumers are cosumers that directly eat producers. That would be the grasshopper or the fish! Secondary consumers recieve energy from producers from primary consumers. Examples of these are the mouse and lobster.

So, the best answer to the question above is a Herbivore that feeds on producers, because a primary consumer is a consumer that eats producers directly, and most producers are plants! Answer "B".

I hope this helps you and you have a wonderful day,

Kai xx