B- black allele;
b- brown allele;
The parental cross is true-breeding because both the male and the female are homo zygotes, so: BBx bb
The F1 generation will be all black heterozygote: Bb
The F2 generation will be between mice of the F1 generation and they all have the same genotype:Bb xBb
In this cross it would result in:
1/4 of the plants being black homozygote-BB 25%
2/4 of the plants being black heterozygote- Bb- 50%
1/4 of the plants being brown homozygote- bb- 25%
answer: 25%+25%=50% are homozygotes
An organism that has chloroplasts and vacuoles and moves using a flagellum would be classified as an autotroph.
<h3>What is an autotroph?</h3>
An autotroph is an organism that can generate its own food, which is due to a chemical process called photosynthesis.
Photosynthesis occurs in a specialized organelle called chloroplast that traps sun radiation to convert it into chemical energy.
In conclusion, an organism that has chloroplasts and vacuoles and moves using a flagellum would be classified as an autotroph.
Learn more about autotrophs here:
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Sexual reproduction relies on two different sexes (female & male) because one has the egg and the other has the sperm.
Answer:
Gastrovascular Cavity
Explanation:
Hydra is commonly found in freshwater ponds and ditches as solitary organisms, in underside of aquatic leaves and lily pads in cool,clean freshwater pools and streams. It has a *Cylindrical body shape*.
Hydra possesses an internal body cavity, the *Gastrovascular cavity *,lined by gastrodermis and has a single opening,the mouth,which serves as an anus.
The Gastrovascular cavity of Hydra is a site for *digestion and nutrient distribution*,and also serves as anus.
Answer:D
Explanation:The reason is because a chemical change is that happens due to a type of chemical such as a oven or microwave heating it up and dough is heating up and forming crust and you can’t change it
