Answer:
Characteristics such as appearance, reproduction, mobility, and functionality are just a few ways in which living organisms are grouped together. These specialized groups are collectively called the classification of living things.
Answer;
Teratogens
Explanation;
-Toxic agents that can cross through the placenta and compromise an unborn child's development are known as Teratogens. They are usually in the environment that the mother may be exposed to during pregnancy.
-Teratogens may cause physical or functional birth defects in the child or may halt the pregnancy outright. The major classes of teratogens include radiation, maternal infections, chemicals, and drugs.
Answer:
See the answer below
Explanation:
<em>The DNA of eukaryotic organisms being present in the nucleus while the protein-synthesizing organelle, the ribosome being present in the cytoplasm poses a spatial problem. It means that transcribed DNAs (messenger RNA) in the nucleus would have to somehow be transported to the ribosome in order for the cell to successfully synthesize proteins.</em>
The problem of transporting the messenger RNA is solved by two features of the cell:
- The presence of pores in the nuclear envelop
- The presence of transport proteins in the nucleus
<u>The mRNA binds to the transport proteins to form mRNA-protein complexes and is transported through the nuclear pores, often with the assistance of ATP. </u>
Answer: The nerve pathway followed by a reflex action is called a reflex arc
Explanation: For example, a simple reflex arc happens if we accidentally touch something hot. Receptor in the skin detects a stimulus (the change in temperature).
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