Answer: Of all the branches of complex animals, sponges are the only group lacking TRUE TISSUE.
Explanation:
The greatest surface area for gas exchange is found in the Alveoli
Answer:
d. directional selection
Explanation:
Directional selection is a form of natural selection that occurs when a particular extreme phenotype of a species is highly favored and thrives more than the other extreme phenotype. This is particularly influenced by environmental changes resulting in differences in the survival between both extreme phenotypes.
In the Galapagos Islands during drought, the seeds to be fed on by finches are mostly large in size, giving rise to the survival of only finches with large beak size of 9 mm to 10 mm as against finches with small beak size. Finches with large beak sizes are favored over finches with phenotypic traits of small beak sizes.
<span> With no photosynthesis, you would make no sugar, then cellular respiration would not happen.</span>
