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Stels [109]
3 years ago
9

1. A black (Cch) is crossed with a chinchilla bunny (cch cch).

Biology
1 answer:
-BARSIC- [3]3 years ago
6 0

Answer:

i got u with nuumber one

Explanation:

the rabits will be black grey or black and cgre or a brown grey color.

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3. a) What are three ways for materials to move in and out of cells? (6 points)
zalisa [80]
Answer: Diffusion, Osmosis and Active Transport
Explanation:
The processes of transport between the cell and the external environment can be grouped into groups: Passive Processes - occur through the plasma membrane, without energy expenditure to the cell, to equalize cell concentration with the external medium. Examples of such processes are diffusion, facilitated diffusion and osmosis. Active processes - occur through the plasma membrane, with energy expenditure, maintaining the concentration difference between the cell and the external environment. For example, sodium-potassium pump. Diffusion In diffusion, particles move from the highest concentration medium to the lowest concentration medium, so that it can be distributed throughout the medium. Therefore diffusion is a process called passive transport. Facilitated Diffusion is the passive transport of substances across the plasma membrane, without wasting cell metabolic energy, allowing the passage of substrates (molecules or ions) from a more concentrated to a less concentrated medium through specific mediation of carrier proteins, enzymes carriers or permeases along the plasma membrane. This process is mainly used to transport carbohydrates, amino acids, vitamins and some ions: sodium, potassium, calcium. Osmosis is the name given to the movement of water between media with different concentrations of solutes separated by a semipermeable membrane. It is an important physicochemical process in cell survival.
The sodium-potassium pump is an example of active transport. Sodium concentration is higher in the extracellular environment while potassium is higher in the intracellular environment. Importantly, the energy required for this change comes from the breakdown of the ATP (adenosine triphosphate) molecule into ADP (adenosine diphosphate) and phosphate. The sodium (Na +) ion in the cytoplasm is pumped out of the cell. In the extracellular medium, the potassium ion (K +) is pumped into the internal medium. If there was no efficient active transport, the concentration of these ions would equal. Thus, the sodium and potassium pump is important as it establishes the difference in electrical charge between the two sides of the membrane that is critical for muscle and nerve cells and facilitates the penetration of amino acids and sugars.
5 0
3 years ago
The traits of freckles is dominant and represented by a no freckles is recessive and represented by a
lara31 [8.8K]

Complete question:

You will find the complete question in the attached files, due to technical problems

Answer:

This conclusion is incorrect. Only half of the progeny will have a dominant and a recessive allele, Aa. The other half will carry two dominant alleles, AA.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

Download pdf
3 0
2 years ago
In your OWN WORDS define the word photosynthesis make it simple.
Rama09 [41]

Answer:

The way that plants create food using sunlight

Explanation:

8 0
2 years ago
Read 2 more answers
Which of the following is an example of Mendel’s Law of Dominance? * 1 point A dog breeder breeds a brown dog and a black dog an
Mashutka [201]

Answer:

A dog breeder breeds a brown dog and a black dog and all the puppies are brown.

Explanation:

This is because of the Mendelian inheritance order of characteristics. In all other example, there are several other things that don't align with this order like gender variability, specie variability etc.

All the puppies are brown and this shows proper and complete dominance in accordance with the law...

6 0
3 years ago
Read 2 more answers
________ is/are a contractile ring of actin microfilaments that eventually results in the division of the cytoplasm.
sergey [27]
CONTRACTILE RINGS are a contractile ring of actin micro filaments that eventually results in the division of the cytoplasm.
The contractile ring are usually formed during the early anaphase phase of the cell division cycle. During the cellular cleavage, the contractile rings tighten around the cytoplasm of the cell until it is pinched into two daughter cells.
6 0
3 years ago
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