Explanation:
-function
Cells are the basic microscopic units of all organisms. There are two cell types:
- Prokaryotic ( meaning ➡️ pro: before and Karyon: for kernel/nut) describes organisms which don’t have a cell nucleus or other organelles surrounded by membranes.
- Eukaryotic (eu meaning true), are organisms with a cell nucleus and several other organelles surrounded by membranes.
- Example prokaryotes do not contain: nuclei , Golgi apparatus, chloroplasts, mitochondria
Both may contain a cell wall (seen in eukaryotic fungi and plant cells)
Their structural components (i.e. their makeup) determine their function (what they do) . For instance, photosynthesizing cells in algae and plants have structures called chloroplasts. These contain chlorophyll, a specialized compound which facilitates the conversion of light energy to energy stored in carbohydrates.Organisms, are either unicellular (single- celled) or multicellular (many celled).
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Answer: 16.7%
Explanation: Children and adolescents (ages 6 to 17 years) engage in 60 minutes or more of moderate-to-vigorous physical activity daily as described by the CDC in The Physical Activity Guidelines for Americans (second edition).
However, elementary and high schools usually run from 8 a.m to 3 pm (or 3.30pm in some cases) daily. High school students take six one-hour classes or four 90-minute classes and an hour lunch break daily.
Thus, the CDC recommends 60minutes of physical activities daily, which account to 16.7% of the total class duration (6 hours) per day.
Umm the answer is In the picture hope this helps my guy
The only option given above that is true for natural selection to occur is option d: 'there must be competition for resources'. Natural selection would also occur under predatory pressure. Natural selection occurs through individuals with advantageous characteristics (phenotypes) surviving and passing on their genes (genotypes) to their offspring.
In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment. The ability of an organism or organ to respond to external stimuli is called sensitivity. When a stimulus is applied to a sensory receptor, it normally elicits or influences a reflex via stimulus transduction.
