c. Birth rates are high
Explanation:
A wide base in the population pyramid shows that there is a large population of young people with high fertility rate or birth rate and high death rate.
From the graph, it can also be concluded that narrow tip at the top shows that lesser older people are in the population.
This pyramid shown in the diagram is a triangular age pyramid. In this type of pyramid the pre-reproductive individuals are high reproductive individual are moderate and non-reproducing individual is less. In such pyramid we find population grows.
Suppose in a family of ten 6 are pre-reproductive, 2 moderate reproductive and 2 post-reproductive. We will see the in the course of moderate and post-reproductive will die and those six of pre-reproducing age will increase the population.
<span>C. Cells come from other cells</span>
<span>In the question,'when a doctor is able to determine the sex of the foetus, during an ultrasound scan, what stage of development is the foetus in, the correction option is D, that is, the second trimester. Human pregnancy usually lasts for an average of nine months. The nine months are divided into three parts of three months each called trimester. The first trimester is made up of the first week of the pregnancy to the twelfth week. During this period, the foetus is just developing and can not be picked up easily by an ultrasound scan, but by the second trimester, which is week thirteen to week twenty four, the foetus would have develop enough to be picked up by the ultrasound scan. At this stage, the doctor can easily determine the sex of the foetus whether it is a boy or a girl.</span>
Answer: 0
Explanation: Because there are three circles which shows females and zero square which shows males.
<u>Cellular respiration</u> is the process by which cells in plants and animals break down sugar and turn it into energy, which is then used to perform work at the cellular level.
Explanation: In simpler words, it provides energy for the cell to do basic needs.