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:
A
Explanation:
cause it's near
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The correct answer is the second option. Animals have two major types: vertebrates and invertebrates. Vertebrates are animals that have backbone while the invertebrates do not have one. Examples for vertebrates are birds and mammals while the latter are insects and squid.
The answer is hox gene.
Hox genes are responsible for an embryo's body plan. They determine different body structures - legs, vertebrae, antennae, wings, depending on groups. Mutation in hox genes is serious mutation since it affects the early stages of embryo and consequently, normal development. If a mutation occurs in the hox gene for legs growth, the legs will not develop.
Insects, such as water striders, and spiders, such as fisher spiders, can glide or scamper across the surface of water. These critters are small enough that their weight can be supported almost entirely by surface tension, the relatively weak forces that hold water molecules together.
Surface tension of water helps creatures(mostly of insecta class such as water striders) to walk on water. ... it also helps water to move up the xylem tissue of higher plants without breaking up
