Answer:
0.7
Explanation:
Given that in statistics, the Relative Frequency is the Frequency of the class divided by Total.
Hence, in this case, the Relative Frequency of black hair is the Frequency of black hair divided by the Total.
Hence, we have 70 ÷ 100
=> 0.7
Therefore, the correct answer is 0.7 Relative frequency.
Answer:
as explained below:
Explanation:
it results as follow:
while you are jogging or doing any physical activity than your body requires alot of energy and produce a lot of carbon dioxide which causes the heart to beat fast as to remove co2 and take o2 from the blood leading to higher rate of pulse.
on the secon hand if you are sedentary , consumption and production of o2 and co2 respectively will decrease leading to the slow beating of heart leading to low pulse
Answer:
DNA is formed by the union of many deoxyribonucleotides, it is composed of two long chains of polynucleotides, which are kept together due to the interactions of their nitrogenous bases.
Explanation:
DNA is the carrier of genetic information, it can therefore be said that genes are made up of DNA. Nucleotides are the monomeric units of DNA and RNA, also known as nucleic acids, which are responsible for storing and transmitting genetic information from one generation to another. The primary structure of DNA is the deoxyribonucleotide sequence of one of the strands. Genetic information is contained in the exact order of nucleotides
1. B (cytoplasm)
2. D (chloroplast)
3. A (protein)
Answer:
Explanation:
Xylem moves water from roots to the leaves, and phloem moves food from the leaves to the rest of the plant. During transpiration water evaporates from the leaves and draws water from the roots.
If the rate of transpiration increases, the rate of absorption of water by the root increases too. Factors that affect the rate of transpiration also affect water uptake by the plant. If water is scarce, or the roots are damaged, a plant may wilt.
Factors affecting rate
The rate of transpiration is affected by several factors, including:
temperature
humidity
wind speed
light intensity
