Answer: False
Explanation:
There are two types of reproduction asexual reproduction and sexual reproduction. Bacteria performs binary fission which is a asexual mode of reproduction.
In this process a single bacterial cells divides into two and it is exactly the same as like of their parent cell. Genetically and phenotipically, the daughter cell is same as like that of the parent cell.
B. Water in the air cools down and forms droplets.
C. Water in clouds falls down to Earth's surface.
D. Water that falls to Earth's surface is absorbed into the ground.
Water in the air cools down and forms droplets. The process is called as condensation. The correct answer is option B.
It is the water cycle in which evaporation along with the condensation both goes on.
Condensation is the process by which the water that is present in the form of vapors in air gets cooled down and the latter changes into the water drops as they fall on the surface. For example when we see a pot in that on the heating the water that is evaporated falls on the surface if placed a lid.
Basically it is the change in the state where the gaseous state gets changed into the liquid state. It is crucial to the atmosphere as it is responsible for the formation of clouds.
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The cell membrane has two functions and one is a barrier keeping the constituents of the cell in and unwanted substances out and, second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.
Red blood cells are disc shaped. It is thought one factor that allows them to have this shape is because they do not have a nucleus. This tends to increase amount of space inside the cell for hemoglobin.
They have a flexible disc shape which helps increase the surface- to- area volume ratio which enables oxygen and carbon dioxide to diffuse across the red blood cell's plasma membrane more readily.
Their disc shape also enables them to squeeze through tiny capillaries that are half their size .
Answer:
The correct answer is CONCAVE because they don't have a nucleus. I just took the test!
Explanation:
Galapagosfinches evolved partly due to variation and competition. When there is variation within a species and competition for resources, the individuals with the best adaptations to their environment are more likely to survive and reproduce.
This is because they are better able to find food, water, and nesting sites, and they are less likely to be killed by predators.
Variation refers to the differences between individuals within a species. These differences can be caused by mutations, which are changes in the DNA of an individual. Mutations can be beneficial, harmful, or neutral.
Competition refers to the struggle between individuals for limited resources. In the case of Galapagos finches, the limited resources are food, water, and nesting sites.
Over time, the accumulation of beneficial mutations and the elimination of harmful mutations can lead to the evolution of new species. This is what happened with Galapagos finches.
The original finches that arrived on the islands were able to survive and reproduce, but they faced different challenges in different parts of the islands.
The finches that were best adapted to their environment were more likely to survive and reproduce, and over time, these finches evolved into different species.
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b. carry out photosynthesis
c. exchange gases with the atmosphere
d carry out cellular respiration