Explanation:
Las células eucariotas son muy diversas en forma, forma y función. Sin embargo, algunas características internas y externas son comunes a todos. Estos incluyen una membrana plasmática (celular), un núcleo, mitocondrias, orgánulos unidos a la membrana interna y un citoesqueleto.
Answer: 1. Sea urchins and sea otters
2. They are prey for carnivores.
3. Sea otters, star fish
Explanation:
Sea urchins and sea otters are carnivores as they eat on the flesh of starfish and sea urchins respectively.
Starfish feed on the kelp forests which are the producers in the food chain and the starfish is the primary consumer and prey for sea urchins. So, starfish and kelp forests are the prey in the marine ecosystem.
Keystone species is the one which controls the population of other inferior species in an ecosystem. Here, sea otters consume sea urchins so the population of sea urchins remained in control Starfish controls the population of kelp forest.
Answer:
There are only four parts of skill related fitness in the options; they are:
Speed
Agility
Balance
Coordination
Explanation:
Physical fitness refers to the ability to perform physical activities well without fatigue. In other words, being physically fit refers to a state of general wellbeing. Physical fitness can either be health-related or skill-related. The skill-related components are six in number viz: agility, power, balance, coordination, speed and reaction time.
However, only four of these skill-related parts of physical fitness are mentioned in the options of this question. They are:
- Speed: This refers to the ability to run a distance in a short time frame.
- Agility: This is the ability to move easily and quickly in different directions
- Balance: The ability to maintain an upright body position during training or physical activity
- Coordination: The ability to make physical senses of one's body (eye) cooperate with the limbs (hands and feets) during a physical activity.
Note that, Aerobic Endurance and Muscular strength are health-related components of fitness
Answer:
Mitosis occurs in Interphase and cytokinesis occurs in Anaphase
Explanation:
Answer:
how a freshwater ecosystem, such as a pond, can change into a terrestrial ecosystem.how a freshwater ecosystem, such as a pond, can change into a terrestrial ecosystem.how a freshwater ecosystem, such as a pond, can change into a terrestrial ecosystem.how a freshwater ecosystem, such as a pond, can change into a terrestrial ecosystem.
Explanation: