The by-product of photosynthesis is oxygen, which is added to our atmosphere. plants also respire; creating atp, the energy they need to continue to grow, develop and reproduce. imagine it is summer; there is a drought. how will the summer drought influence the model we see here? a) in a response to the drought, stomata will open more frequently. there will be higher outputs of co2 and o2 as a result. b) an increase in temperature will cause an increase in chemical activity. there will be increases in all chemical inputs and outputs in the model. c) water will be a limiting reactant in the model. as a result, less glucose will be produced. there will be less co2 in and o2 and h2o out. d) water will be a limiting reactant in the model. there will be less h2o in through the roots and less h2o out via transpiration. the other inputs and outputs will remain constant.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

interphase

the period of cell growth when the cell synthesizes new molecules and organelles. the cell is not dividing and it constitutes the majority of the time spent in the cell cycle

prophase

changes occur in the nucleus and cytoplasm. the chromatin condenses to form structures (sister chromatids) visible with a light microscope and the mitotic spindle begins to form, but the nucleus is still in tact

prometaphase

the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the sister chromatids

metaphase

all the cell's duplicated chromosomes are lined up at an imaginary plane equidistant between the poles of the mitotic spindle

anaphase

begins when sister chromatids separate from each other and ending when a complete set of daughter chromosomes arrives at each of the two poles of the cell

telophase

the daughter nuclei form at the two poles of a cell

cytokinesis

the division of a cytoplasm to form two separate daughter cells. usually occurs during telophase during mitosis. this and mitosis make up to mitotic (m) phase of the cell cycle

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.