Answer:
1c. Pharyngeal pouches
2d. Reduce water concentration
3b. A diploid (2N) adult organism
4c. Duck
5a. a chimpanzee figuring out how to use a new tool to obtain a hidden food source
6a. salamander
7c. Annelids and mollusks
8b. cell wall and chloroplasts
9c. seeds
10d. Protection and immunity
Answer:
<h3>A pH of 7, [H+]=[OH] below pH 7, which of these is greater <u>H+</u>. Bases have a pH that is <u>More</u> than 7</h3>
Loamy soil is ideal for gardening because it contains c-mostly sand with very little clay or silt.
Loamy soil is good for gardening since this soil can retain water and nutrient, but if the water is too much it still can be drained away. The soil contains mostly sand which was bigger particle than silt and clay.
Answer:
The correct answer is "selection favors multiple distinct trait values, and similar individuals tend to mate with each other".
Explanation:
A population with a bimodal distribution are groups of organisms with two major traits or "modes", with practically equal amounts of individuals with these two modes. This type of distributions indicate that the population is not homogenous and that more than one trait is favored in the given circumstances. A bimodal distribution is most likely to evolve when selection favors multiple distinct trait values, and similar individuals tend to mate with each other. In this case natural selection favors more than one value, and due to the individuals with one value tend to mate to each other, only two major traits are favored in the population.
Answer:
A. donation of excited electrons by chlorophyll a to a primary electron acceptor
Explanation:
Photosystems are structures located at the thylakoid membrane that act to harvest energy light in order to convert it into chemical energy. Each photosystem is composed of a light-harvesting complex and a core complex, which in turn is composed of a reaction center. The photosynthetic reaction centers are multi-protein complexes that use light energy to catalyze the electron transfer across the chloroplast thylakoid membrane against a thermodynamic gradient. Moreover, antenna pigments are pigments that capture the energy from photons in order to transfer energy to other pigments in the photosystem (e.g., chlorophyll B and carotenes are antenna pigments, whereas chlorophyll A is the core pigment). Light energy absorbed by antenna pigments in the photosystems is transferred to the reaction center chlorophyll A molecules, thereby exiting electrons in the reaction center. A reaction center consists of two chlorophyll A molecules, which donate electrons to the primary electron acceptor.
