The replicate DNA fast and reproduce fast by binary fission.
Answer: C
Explanation:
When breeders notice a unique trait of interest and selectively breed to increase their population, there is tendency of also increasing the population of lethal genes. This happens via a situation known as inbreeding depression. There is a tendency to mate closely related individuals in a bid to increase the occurrence of a desired phenotype. However, in a situation where these animals have a recessive lethal gene, it may result in a double recessive thus becoming obvious in the population.
Answer:
Todd : will be circled
Because he had said the correct statement
cell is the basic structural and functional unit of life..
group of cells make tissues, group of tissue make organs and group of organs make organs system......
The correct option is HYPOTHESIS.
An hypothesis refers to an explanation, that is proposed and which is temporarily accepted in order to investigate an observed phenomenon. Sometimes it is described as educated guess.
Scientific hypothesis is the first step that is always taken by scientists during the course of scientific investigation and it serves as the basis on which the scientific investigation is based. A hypothesis must be testable and the explanation offered abut it must be based on prior scientific knowledge.
The diagram for evolution of plants in the 4 stages is attached below.
<u>Explanation:</u>
The plants evolution has 4 main periods:
<u>A. 1st Period of Plant Evolution
</u>
About 420 million years ago, plants evolved from algae. Formation of cuticle was the first terrestrial adaption.
<u>B. 2nd Period of Plant Evolution
</u>
Abut 400 million years ago, the diversification of vascular plants came into being. The early vascular plants lacked seeds.
<u>C. 3rd Period of Plant Evolution
</u>
This was around 360 million years ago, that the seed evolved. The plants had seeds, but they did not have any covering, so they were called naked seeds. These plants were gymnosperms.
<u>
D. 4th Period of Plant Evolution
</u>
This was the evolution of flowering plants, happened around 130 million years ago (during early Cretaceous period). The flowering plants were called angiosperms.
