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Cloud [144]
3 years ago
6

Which of these can live either with oxygen or without it?

Biology
1 answer:
Pepsi [2]3 years ago
6 0
A. facultative anaerobes

Facultative anaerobes, can grow without oxygen but if oxygen is present; then, it will use the oxygen.

Letter B. is harmed when oxygen is present.
Letter C. its life is dependent on the presence of oxygen
Letter D. a virus that is dependent on the lifespan of the bacteria it is attached to. If the bacteria can't survive in oxygen, bacteriophages will die too.
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A green pea plant (Gg) reproduces with a yellow pea plant (gg). What is the dominant phenotype?
julia-pushkina [17]

Genotype is your complete heritable genetic energy Phentype is a discription of your actual physical characteristics.

answer - green pea plant is phenotype yellow is genotype

4 0
3 years ago
Sexual reproduction produces offspring _____. similar to parents but also genetically unique. genetically identical to the paren
Anna35 [415]
Sexual reproduction produces offsprings that resemble their parents but are at the same time unique genetically.
8 0
3 years ago
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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
A scientist studied a population of birds for 10 years. During that time, the population was never fewer than 30 birds and never
ahrayia [7]

Answer:

A particular population limiting factor or factors must have been removed

Explanation:

The population of the birds must have been kept between 30 and 50 individuals by population limiting factors such as the presence of predators within the community or competition for resources such as food or spaces.

For the population to shoot up to 90 all of a sudden, it may be that one or more of the population limiting factors has been removed from the population. <u>It could be that a major predator has been removed from the community or the competition for food/space is now significantly reduced due to more food/space in the community. </u>

3 0
2 years ago
And example of need is
BigorU [14]
Goods or services that are required.
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3 years ago
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