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zubka84 [21]
3 years ago
14

Assume that some members of an aquatic species of motile, photosynthetic protists evolve to become parasitic to fish. They gain

the ability to live in the fish gut, absorbing nutrients as the fish digest food. Overtime, which of the following phenotypic changes would you expect to observe in the population of protists?a.) gain of meiosisb.) loss of mobilityc.) loss of chloroplastsd.) no changes would be expectede.) gain a rigid cell wall
Biology
1 answer:
MaRussiya [10]3 years ago
5 0

Answer:

The correct answer is C: l<em>oss of chloroplasts.</em>

Explanation:

The parasite would lose chloroplasts. As they absorb nutrients from the fish digest food in the gut of the animal, parasites do not need to photosynthesize any more. There are some parasites in the fishes digestive tract that conserve their motile capacity by keeping their flagellum or cilium. Some species get their membranes thicker for protection in their interaction with the host, and they can also secrete a special capsule.  In general, these organisms reproduce asexually.

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Which is the change in size of a group of organism of the same species over time
sasho [114]

Answer:

population growth

Explanation:

A is the answer.  Population growth is the change in the size of the group of the same species over time.  

Bless you

5 0
3 years ago
Read 2 more answers
13. Write a flow chart for Aerobic respiration starting from Glucose to
Nata [24]

Answer:

<em>Aerobic respiration occurs in the steps:</em>

Glycolysis--> respiration-->  ETC

<em>(see images for flow chart)</em>

<em />

Explanation:

The mitochondria inside the cell's cytoplasm is an organelle. It consists of a gel-like material comprising an outer membrane, an inner membrane, and a matrix. In mitochondria, cells break down sugars in the form of glucose during aerobic respiration, in the presence of oxygen...

This occurs via glycolysis, the Kreb's cyle, and the electron transport chain (ETC)

C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP

   glucose + oxygen            →  carbon dioxide+ water+ energy

5 0
3 years ago
Identify the phenotypes for the offspring of a parent with the genotype IBi and a parent with the genotype IAIA. type O type A,
agasfer [191]
 <span>I is dominant, i is recessive. The A's and B's are just show which allele I is. When there is just one dominant allele, it masks the recessive in blood typing. Remember IA and IB are codominant. 

O is always ii 
A is IAi (heterozygous) or IAIA (homozygous) 
B is IBi (heterozygous) or IBIB (homozygous) 
AB is always IAIB 

Remember: You get one allele from each parent! 

1. Father must be ii, mother must be ii, so all children must be ii. 

2. Father is IAIA (the homozygous one), the mother is IBIB, so the only possibility for the children is IAIB, because you get one allele from the father and one from the mother. 

3. Father is IAi, mother is IBi, so the children can be any of the blood types, because they can have all the combinations of genotypes. 

4. Father is ii, mother is IAIB. Children can only be IAi or IBi. 

5. Father is IAIB, mother is IAIB. Children can be IAIA, IBIB, or IAIB. 

Example of Punnett square: 
3. Father is type A, heterozygous, mother is type B, heterozygous 
Father must be IAi (heterozygous) 
Mother must be IBi (heterozygous) 

_______IA ____ i 

IB____ IBIA____IBi 

i _____ IAi______ii 

Sorry, that was difficult on here, hope it's understandable. 
The father's alleles run across the top, the mother's are on the side, you follow to where they meet to find the possibilities for the children. IBIA (AB blood type), IBi (B), IAi (A), and ii (O) are the possibilities in this case. 

Hope that helps!</span>
6 0
3 years ago
Can anyone help me plss
Aleks [24]

Answer:

A

Explanation:

If you have ever seen a punnett square, you should know already that usually, they have 4 (or more) little boxes with two of the same letter. (ex. EE, ee, or Ee in every box). This predicts what the genotype of the offspring would be, based on the parents' genotypes. Pedigree charts track inherited traits, whether that be a disease or health.

5 0
3 years ago
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1. How do disturbances (or catastrophes) affect ecological succession? Be as specific as possible. Right answers only.
tino4ka555 [31]

Answer:

There are two types of ecological succession:

Primary succession:

Primary succession occurs in areas which were previously devoid of life. There were no organisms living in this area before. For example, lands after new glaciers or volcano  eruptions. Firstly, microorganisms begin to habitat this land, followed by plants like lichens, shrubs etc. Finally, complex life evolved from these.

Secondary succession:

Secondary succession arises in areas where life existed before but was destroyed due to natural circumstances like flood, fire etc. Small grasses inhabit this land first which are taken over by trees over  period of time.

3 0
3 years ago
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