Answer:
C. 444 Ma
Explanation:
The first plants that managed to colonize the land appeared around 470 million years ago, while the first arthropods on land appear i the fossil records around 450 million years ago, so we can say that around the period of 444 million years ago they were well established on land. The first arthropods that started to have terrestrial life were almost identical to those in water, with only minor changes that enabled them to breathe and move more easily. The first plants on land were non-vascular plants. They were small as they initially didn't had deep and well established roots.
Answer:
According to base pairing rule- Adenine pair with thymine(A=T) and Guanine pair with Cytosine(G≡C).
Explanation:
According Chargaffs rule for base pairing-
ADENINE=THYMINE and GUANINE≡ CYTOSINE.
If we consider it as 5' to 3' like- 5' TTACGCAT 3'. Then correct matched codon on other strand will be- 3' AATGCGTA 5'
Three different types of inks are used in this experiment. The ink are black, red and green in colour. During the course of the experiment, the black ink changes colour from light blue to dark blue and then to red. The red ink changes color from red to pink. The green ink changes colour from dark blue to green and then to yellow.
Somebody whose parathyroid is not functioning properly might suffer from kidney stones or osteoporosis, among other symptoms.
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