Water resources are sources of water that are potentially useful. Uses of water include agricultural, industrial, household, recreational and environmental activities. The majority of human uses require fresh water.
Answer:
the connective tissues includes several types of fibrous tissue that vary only in their density and cellularity as well as the more specialized and recognizable variants- Bone ligament, tendons, cartilage, and adipose fat tissue.
Note: <em>You will find the missing image needed to answer the question in the attached files</em>.
Answer:
- The hallux (big toe) of Carpolestes has synapomorphic features shared with the euprimate.
- The nail on the distal phalange is an example of a synapomorphic feature.
Explanation:
- The symplesiomorphic features are those shared by two or more organisms that inherited it from a common ancestor, but this trait is older in relation to those traits exhibited in other descendants of that same ancestor.
- The synapomorphic features are those shared by two or more organisms that inherited it from a common ancestor, and which evolved for the first time in it.
There are more synapomorphic features shared with the euprimates. The nail on the distal phalange of the big toe and euprimates might be considered as a synapomorphic feature. It is quite different from the same nail of the tree shrew.
Answer:
Explanation:
Oxygen gas and water must be present for iron to rust.
A region of the metal’s surface serves as the anode, where oxidation
occurs:
Fe(s) → Fe²⁺ (aq) + 2 e⁻
The electrons given up by iron reduce atmospheric oxygen to water at the cathode, which is another region of the same metal’s surface:
O₂ (g) + 4H⁺ (aq) + 4 e⁻ → 2 H₂O (l)
The overall redox reaction is:
2 Fe(s) + O₂(g) → 4H⁺(aq) + 2Fe²⁺ (aq) + 2 H₂O(l)
The Fe²⁺ ions formed at the anode are further oxidized by oxygen:
4 Fe²⁺ (aq) + O₂(g) 1 (4 + 2x) H₂O (l) → 2 Fe₂O₃ . xH₂O(s) + 8 H⁺(aq)
This hydrated form of iron(III) oxide is known as rust. The amount of water associated with the iron oxide varies, so we represent the formula as 2 Fe₂O₃ . xH₂O.
1 They are heterotrophic
2 Chloroplast
3 A respiratory system in the lungs