Almost every cell in the human body is replaced every few years through the process of _____. replication mitosis meiosis duplication
Choose the words that complete the sentence correctly. Gametes with an abnormal number of chromosomes may form as a result of Choose... during the process of Choose... .
What surrounds a fertilized embryo that protects and nourishes it? A. a leaf B. a seed coat this C. a cone
Organisms resemble their most recent ancestors more closely than distant ancestors. * 1 point True False
Which of the following is TRUE of the fertilization of gymnosperms? A. The seed is carried to a flower on another tree and gets pollinated. B. Multiple pollen grains can fertilize one ovule at a time. C. Gymnosperms are the only self-fertilizing plants. D. When the pollen sticks to the seed cone, a pollen tube grows to connect it to the egg cell. This is answer
true or false cells cannot use the energy of glucose directly because a glucose molecule contains too much energy
Plants in different environments have challenges that only they have. For example, the growth of a plant in a rainforest (e.g., an orchid) might be more affected by different things than a plant in a desert (e.g., a succulent). In three to five sentences, compare environmental challenges that could affect the photosynthetic process of a rainforest plant versus a desert plant.
Why will a decrease in light intensity result in a decrease in the rate of photosynthesis? 1. A decrease in light intensity means a decrease in the available reactants needed for photosynthesis. 2. A decrease in light intensity means the enzymes that control photosynthesis may denature. 3. A decrease in light intensity means a decrease in the energy required for photosynthesis to take place. 4. A decrease in light intensity means an increase in the energy required for photosynthesis to take place.
Which part of the flower contains the anther and pollen grains? A. petals B. pistil C. stamen this is answer
Which of the following questions will best direct an investigation of the mechanism of ATP synthase? What is the source of the inorganic phosphate that is used to generate ATP from ADP? Is the phosphorylation of ADP by ATP synthase dependent on the formation of a proton gradient? Can ATP synthase use the energy released by phosphorylation of ADP to pump protons against a concentration gradient? Can oxidative phosphorylation be uncoupled from the electron transport chain?
What is pollination? A. when a flower blooms from its sepals B. when the fruit develops around a fertilized seed C. when pollen is transferred from the anther of one flower to the stigma of another at this is answer
Help!! What types of veins do monocots have in their leaves? A. branched veins B. parallel veins C. taproot veins D. fibrous veins
4 What types of veins do dicots have in their leaves? A. parallel veins B. taproot veins C. branched veins this D. fibrous veins
