According to Mora et al., in 2011, the number of estimated species on Earth is …………… . (a) 8.7 million (b) 9.7 million (c) 7.7 million (d) 9.7 billion

According to Mora et al., in 2011, the number of estimated species on

1.	According to Mora et al., in 2011, the number of estimated species on Earth is …………… . (a) 8.7 million (b) 9.7 million (c) 7.7 million (d) 9.7 billion
Answer» (a) 8.7 million