Because of these physical features, the type of producers that we would expect to find in the tundra are A. lichens and low-growing moss.
Because it is usually very cold in the tundra, and there isn't much rain, but there are a lot of rocks around with no grass, the plants that will grow in such a place have to be small plants because they don't have the appropriate conditions to grow and thrive.

3 0

3 years ago

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Which of the following is nicknamed the “powerhouse “ of the cell ?

lakkis [162]

Mitocondria is nicknamed the powerhouse of the cell, These structures are nicknamed the powerhouse of the cell because they work to convert energy into forms that the cell is able to use. Mitochondria are semi-autonomous cells, which means that they only rely partly on the cell for division and growth.

-www.reference.com/science/powerhouse-cell-f9bbce99417d7167

5 0

3 years ago

Cross a person who does not have freckles and is heterozygous for dimples with a person who has

Alja [10]

Answer:

1. 1/2

2. 1/2

3. 1/4

Explanation:

Let the allele for freckles be A or a while that of dimples be B or b.

A person without freckles but heterozygous for dimples = aaBb

A person who has freckles (whose mother has no freckles) but no dimples = Aabb

aaBb x Aabb

Offspring

4 AaBb - freckled and dimpled

4 Aabb - freckled and non dimpled

4 aaBb - non freckled and dimpled

4 aabb - non freckled and non dimpled

1. Probability that the parents will have a dimpled child = 8/16 or 1/2

2. Probability that they will have a child with freckles = 8/16 or 1/2

3. Probability that they will have a child with freckles and dimples = 4/16 or 1/4

See the attached image for the Punnet's square analysis of the cross

4 0

2 years ago