Answer:
A)The limb bones are similar across these species because they share a common ancestor.
Explanation:
The forelimb of humans, horses, goats, and mice are homologous organs. Homologous organs are those which are similar in origin but dissimilar in function. These organs are made of the same bones humerus, ulna, and radius. The above for limb in the given animals perform different functions as they live in different habitats. The homologous structures indicates divergent evolution.
Answer:
Prophase
Explain:
The first step in mitosis, the nuclear envelope breaks down and chromosomes condense and become visible.
Answer: Option b
Explanation:In chemistry,
before any reaction would occurs, reactat must be able to overcome some certain amount of energy which is called the activation. The activation energy is usually the heat that is suppled.it is also refered to as the minimum energy needed before any reaction can take place. For reaction to take place, there must be an equilibrium( at constant temperature and pressure.
Answer:
D) Sea otters are a keystone species as they prevent a herbivorous species from completely destroying a plant species.
Explanation: