Answer:
Cells have different shapes because they do different things. The shapes of cells have evolved to help them carry out their specific function in the body, so looking at a cell's shape can give clues about what it does. Neurons are cells in the brain and nervous system.
Explanation: Brainlest plz?
Answer:
Heat from Sun reaches us by the process of radiation. ... It takes place in the form of electromagnetic radiations. In space (where there is Sun) there is no atmosphere, no medium, so convection can't take place. By radiation only heat can be transmitted by Sun to earth.
Answer:
c. Carbon Dioxide
Explanation:
The rate of respiration is determined by the presence of concentration of carbondioxide gas in the blood because in the process of respiration, energy in the form of adenine tri phosphate (ATP) and carbondioxide gas are produced. This ATP is required for performing different activities while carbondioxide gas is a waste product which must be removed from the blood through breathing. If carbondioxide gas is produced quickly so the rate of respiration is also increased in order to remove the gas from the blood.
<u>ANSWER:</u>
'Adaptations enhance survival' is true about all adaptions.
<u>EXPLANATION:</u>
- Adaptation is a mechanism in organisms that allows them to adjust with the changes in their current environment or to adapt to their new environment.
- Darwin explained this as a concept of a natural selection process where organisms are susceptible to the variations with the environmental changes.
- These variations which are associated with greater survival and reproductive success are retained in the progeny. This phenomenon is known as Darwinian fitness.
Cells spend most of their lives, about 78 percent of the time, not dividing in a phase called interphase. During interphase the cells get larger, replicate their chromosomes for cell division, synthesize substances that are essential to cell division, and build materials for growth and development.
