3. Which of these organelles is the site for energy production in a cell?

Eukaryotes are organisms that have evolved membrane-bound organelles such as mitochondria, Golgi apparatus, and in the case of p

torisob [31]

Answer:

A

Lipids are water soluble fatty acids that are the primary component of cell walls; they regulate water uptake by the cell because they form carbon chains.

B

Lipids are water insoluble fatty acids and the are the primary component of cell walls; they protect the cell and help maintain its shape because they form carbon rings.

C

Carbohydrates like cellulose and chitin are the primary component of cell walls; they repel and prevent excess uptake of water because they form rigid linear carbon chains.

D

Carbohydrates like cellulose and chitin are the primary component of cell walls; they protect the cell and help maintain its shape because they form chains of rigid carbon rings.

7 0

2 years ago

Below is a picture of a forest. What will happen in the next few years?

ki77a [65]

Answer:

Deer and bear population will increase, but the mushroom population will decrease.

Explanation:

The deer will start eating the mushrooms, cutting down the population numbers for that plant and reproducing it's own species. Then the bears will eat the deer, making their population increase as well.

I hope this helps~!

5 0

3 years ago

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How did the occurrences of the different traits change over the 30-year period? Use evidence from the graph to support your answ

antiseptic1488 [7]

Answer:

Darwin was a British naturalist UN agency planned the idea of biological evolution by survival of the fittest. 

In living organisms, several characteristics are transmissible, or passed from parent to offspring.

(Darwin knew this was the case, even supposing he didn't understand that traits were transmissible via genes.)

Organisms are capable of manufacturing a lot of offspring than their environments will support.

Thus, there's competition for restricted resources in every generation. 

The offspring in any generation are slightly totally different from each other in their traits (colour, size, shape, etc.), and lots of of those options are genetic.

To make survival of the fittest a lot of concrete, let's take into account a simplified, theoretic example.

During this example, a gaggle of mice with genetic variation in fur colour (black vs tan) has simply touched into a brand new space wherever the rocks are black. 

This surroundings options hawks, that prefer to eat mice and may see the tan ones a lot of simply than the black ones against the black rock. 

Because the hawks will see and catch the tan mice a lot of simply, a comparatively giant fraction of the tan mice are consumed, whereas a way smaller fraction of

If we glance at the quantitative relation of black mice to tan mice within the living ("not-eaten") cluster, it'll be more than within the beginning population 

7 0

3 years ago

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Which of the following behaviors allows a bird to maintain a constant body temperature in extremely hot weather?

Anna71 [15]

d. All of the above

These behaviors;

Spreading wings
Flattening feathers
panting

are all evolutionary process to maintain body temperature. Birds are warm-blooded animals. Also known as homeotherms, which is defined as having the constant body temperature. This is a vital function for the survival of the specie.

3 0

3 years ago

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In a cross between two tall plants with yellow seeds that are heterozygous on both traits (TtYy), supposed Mendel discovered tha

lawyer [7]

Answer:.

A test-cross can reveal an unknown genotype. As the plants are heterozygous they sort independently of each other. when they are cross linked dominant genes express themselves in most of the cases whereas the recessive genes also express themselves resulting in the formation of tall and yellow plants and as well as short and green plants.

Explanation:

The impact of a single gene on more than one characteristic is called pleiotropy. Mendel deduced from his results that each individual had two discrete copies of the characteristic that are passed individually to offspring.Mendel called the dominant allele the expressed unit factor; the recessive allele was referred to as the latent unit factor.Mendel’s law of dominance states that in a heterozygote, one trait will conceal the presence of another trait for the same characteristic. The recessive trait will only be expressed by offspring that have two copies of this allele and these offspring will breed true when self-crossed.

7 0

3 years ago