The first hominin to have enough uniquely human features to be placed in the same genus as modern humans is Homo
erectus.
____________________ Indicate whether the statement is true or false.
False - Homo habilis
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What made the plant hybridization studies performed by Mendel more successful than plant hybridization studies performed by others?
A. Mendel did not use true-breeding organisms because he wanted to assess the inheritance of more than one trait per breeding. B. Mendel was the first to identify characteristics of pea plants that could be observed as phenotypes. C. Mendel's understanding of natural selection inspired his methodology to examine the effect of environmental stressors on genetic diversity. D. Mendel used statistical analysis to analyze the phenotypes he observed. E. Mendel used qualitative analysis to evaluate the genotypes he observed.
The anterior pituitary gland secretes ________. In men, this hormone causes the cells that will become sperm to be more sensitive to the effects of testosterone
Fill in the blank(s) with correct word
In the "photo" reaction of photosynthesis, where does the energy to build ATP come from?
a) In the first electron transport chain, hydrogen ions are pumped into the thylakoid by high-energy electrons; the kinetic energy from the release of these ions builds ATP b) In the NADPH-producing photosystem, the electrons from the electron transport chain produce energy upon being transferred c) In the water-splitting photosystem, the electrons release energy upon being transferred to the electron transport chain
Which organelle would be more abundant in a sperm cell than a skin cell since it has to move?
a) mitochondria b) ribosomes c) chloroplast d) nuclei