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3 years ago

What surrounds all cells

2 answers:

7 0

The Cell membrane surrounds all living cells and is the most important organelle, there is also a similar plasma membrane that surrounds all the organelles except for the ribosome. It is composed of phospholipids, proteins, and carbohydrates, which are arranged in a fluid mosaic structure.

defon3 years ago

7 0

A membrane surroundes the human cell and a cell wall surrounds a plant cell

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Interpret the Punnett square. A Punnett square with four rows and four columns. The first row is labeled big-A, big-B. The secon

Naddika [18.5K]

Answer:

The genotypes shown represent gametes. False

One of the possible offspring genotypes is AABB. True

The parent genotypes are ABAbaBab×ABAbaBab. True

This cross shows two alleles for two traits. True

The gametes are diploid and the offspring are diploid. False

The genotypes shown are correct for a dihybrid cross. True

Explanation:

║ AB ║ Ab ║ aB ║ ab

AB║ABAB ║ ABAb║ABaB║ABab

Ab║ AbAB║ AbAb ║AbaB║Abab

aB║aBAB ║ aBAb ║aBaB║aBab

ab║abAB ║ abAb ║abaB ║abab

Drawing the Punnett square we can deduce that the genotypes shown do not represent gametes because there are more than 2 pairs of chromosomes.

As shown in the second column second row of the Punnett square one of the possible genotypes is AABB, it is distributed different (ABAB) but it is the same possible genotype.

The parents' genotypes are the ones that are written in the first columns and first row, they coincide with the ones in the statement.

A dihybrid cross shows the cross between two genes that have different traits.

The gametes are always haploid and the offspring are diploid because the two gametes come together.

7 0

3 years ago

Why do you think the snapper population changed the way it did?

maksim [4K]

Answer:

Snapper population is decreasing

Explanation:

The population is decreasing since the human population is increasing dramatically. As the human population increases, the demand for fish and seafood also increases since humans eat seafood and fish. As the demand for fish increases, fishermen fish for these snappers more often and in bigger loads. Snappers cant reproduce faster than these fishermen are hunting for them and so the population decreases

8 0

3 years ago

Read 2 more answers

Everyone's skin contains about the same number of melanocytes even though people come in many different colors. How is this poss

Hatshy [7]

This is because the melanocytes are located in the stratum basale. Lighter-skinned people usually have low basal levels, and exposure to UV radiation causes an increase which makes skin darker.

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3 years ago

Which trophies level contains the most energy?

AleksAgata [21]

Answer:

producers

Explanation:

All the energy comes from the sun. a small amount of sunlight energy is trapped by green plants and used in photosynthesis to form organic materials in plants that are sources of food to the rest of the animals. Animals get this energy when they feed on plants directly like the herbivores or indirectly like the carnivores.

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3 years ago

Cells form a ______ arrangement when cells in a chain snap back upon each other forming a row of cells oriented side by side.

Debora [2.8K]

Answer:

Palisade

Explanation:

8 0

2 years ago