Punnet squares are your friend with these kinds of questions :)
<u> A | a |</u>
A <u>| AA | Aa |</u>
a <u>| Aa | aa |</u>
Now we can easily see that 1/4 of the offspring will be AA, 1/2 will be Aa, and 1/4 will be aa. Therefore, it is the third answer that's correct (1/4 AA, 1/2 Aa, 1/4 aa). Hope this helps! :)
The inner lining of blood vessels is called the inner lining of blood vessels is called Endocardium .
The endocardium is the innermost layer of tissue that lines the chambers of the heart. Its cells are embryologically and biologically similar to the endothelial cells that line blood vessels. The endocardium also provides protection to the valves and heart chambers.
To know more about Endocardium here
brainly.com/question/19241651
#SPJ4
Answer: option A, B, C at correct
Explanation:
All animals have collagen. Collagen is found exclusively in all animals. It is the main structures protein that is found in the connection tissues of animals.
Animals do possess embryos that undergoes gastrulation where the digestive cavity and germ layers are formed, these then develop into certain tissue systems, organs etc
Animals are heterotrophs in that they are unable to symthesize their own food but rather depend on plants which are autotrophs for their food and they also lack cell wall which differentiates them from plants. Not all animals are mobile for example, sponges.
