BIOLOGY HIGH SCHOOL

The code which controls all characteristics and activities of an organism is found in its:A. shoes
B. habitat
C. jeans
D. genes

Answers

Answer 1
Answer: D. Genes. Hope this helps. 
Answer 2
Answer: D, obviously. Scientifically.  

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Is a short, fleshy stem surrounded by enlarged, fleshy bases of leaves.

Answers

it is a bulb

definition: a plant structure with enlarged leaf bases and stored food surrounding a central bit of fleshy stem tissue

Which is a function of the plant cell wall?a. It keeps the cell dry.
b. It gives the cell its color.
c. It prevents the cell from bursting.
d. It holds the cell in its proper position.

Answers

It is c. Unlike a eukaryotic cell, the cell wall helps the plant cell from bursting from all the water that is consumed. 

Hoped this helped.

~Bob Ross®

A mother has one allele for dimples and one allele for no dimples. What is theprobability that she produces a gamete with the allele for dimples?
​

Answers

Let’s use symbols for better understanding.

It is given that the mother has two alleles, one with and one without. Making the symboled be...Dd.

The father isn’t given so it would be a little hard to add them in a punnet square.

It would depend if the father would have all alleles be recessive (dd), dominant (DD), or be like the mother heterozygous (Dd).

Given the fact that the father isn’t given, here are all the probabilities with all three factors:

1. dd

This would make the result be

(Dd, dd, Dd, dd)

Meaning that there is a 50/50 chance for the offspring to have dimples. The other problem is that the problem doesn’t state that dimples are either dominant nor recessive so, in this case, I’ll assume their recessive.

The other 50% is for the offspring to have heterozygous genes. Meaning that they have the dimples gene but it’s covered up by the dominant gene of not having any.

2. DD

Here it would be really hard to have the offspring to have dimples. The parent has both alleles to be dominant, meaning that they will overrule the gene for dimples. Making the result be...

(DD, DD, Dd, Dd)

There is a 100% chance of the offspring to have the dominant gene overrule the recessive gene. But there is another 50% chance for the offspring to have the recessive gene hidden.

3. Dd

Result is...

(DD, Dd, Dd, dd)

This means that there is a 75% chance for the offspring to have the dominant gene overrule the recessive. But there is a 50% chance for the recessive gene to be hidden. There is a 25% chance for the offspring to have a pure dominant set of alleles, making them not have the recessive gene of having dimples at all. But there is another pure set of alleles for having the recessive gene stand out, a 25% chance for this case.

Hope this helps!

in an aquatic ecosystem, the algae and phytoplankton are responsible for primary productivity. All BUT ONE factor usually influences the primary productivity of a marine ecosystem. That is a)water salinity b)light intensity c)water temperature d)available nutrients

Answers

Answer: Light intensity  

Explanation:

The total amount of nutrient( organic material) which is left after respiration, in order to support the other levels of the food chain is known as the net primary productivity.

More than 90% of the producers are the pytoplanktons that performs the process of photosynthesis.

The intensity of light falling on the water surface affects the rate of primary productivity.
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How can genetic mutations lead to genetic variations among people?

Answers

Genetic mutations affect the DNA. It can result in new traits being formed, leading to more variety of traits and DNA among people.

I’ll mark brainliest
how do organisms with many cell types develop from a single cell

Answers

Answer:

A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs.During development, cells use both intrinsic, or inherited, information and extrinsic signals from neighbors to "decide on" their behavior and identity.
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