HRS - Ask. Learn. Share Knowledge. Logo

Questions in biology

[Done] Glycine is what type of monomer?

[Done] Bacteria living in the soil are dependent upon which of the following abiotic factors? A. plant root structures and oxygen content B. soil temperature and water content C. nitrogen content and insect activity D. insect activity and plant root structures

[Done] What does the diagram of water intake by a bryophyte look like?

[Done] A little girl steps on a sharp shell at the beach. What nerve pathway will this stimulus signal follow in order to lift her foot from the sharp object? A. Sensory neuron, interneuron, motor neuron, effector B. Motor neuron, interneuron, sensory neuron, effector C. Sensory neuron, motor neuron, interneuron, receptor D. Motor neuron, interneuron, sensory neuron, receptor

[Done] An owl and a bat share the same kingdom and phylum; an owl and a robin share the same kingdom, phylum, and class. Which of the following statements is correct? A. The owl and the bat have more characteristics in common. B. The owl and the robin have more characteristics in common. C. All three animals share the same characteristics. D. These three animals have no characteristics in common.

[Done] When Hooke first used the term "cell," did he intend to have it apply to living material?

[Done] Which cells form the stomata? A. Sieve cells B. Guard cells C. Phloem cells D. Mesophyll cells

[Done] Which variable in Redi's experiment on spontaneous generation is NOT a controlled variable?

[Done] What could happen to the environment if there were no environmental scientists to monitor it? A. Decline in air, land, and water pollution; no one to ensure proper disposal of toxic wastes; decreased destruction of habitats; increase in species extinction. B. Great increase in air, land, and water pollution; no one to ensure proper disposal of toxic wastes; increased destruction of habitats; increase in species extinction. C. Problems with enforcing the preservation of certain ecosystems and wildlife; great increase in air, land, and water pollution; decreased destruction of habitats.

[Done] A tall pea plant with yellow seeds is heterozygous for height and seed color ([tex]TtYy[/tex]). This plant is crossed with a pea plant heterozygous for height but homozygous recessive for seed color ([tex]Ttyy[/tex]). If 145 plants are produced, how many are expected to be tall and have yellow seeds?