Answer:
All cells essentially originate from a single fertilized egg.
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When glucose is high, cAMP is low; CAP does not bind the lac operator, and RNA polymerase does not bind the lac promoter. CAP is only active when glucose levels are low, which means the cAMP levels are high, and therefore the lac operon can only be transcribed at high rate when glucose is absent. The importance of this is that the bacteria only turns on the lac operon and start using lactose only after they have used up all the preferred energy source which is glucose.
Answer:
A. community - the fish, frogs, insects, and aquatic plant species that live in a particular lake
B. individual - a groundhog living in your backyard
C. ecosystem - all of the species of plants and animals and the non-living resources in a tropical forest
Explanation:
A community is defined as a group of populations of two or more different species which inhabit the same area at a certain time.
Individual is defined as one type of organism.
Ecosystem includes communities, the environment, the non-living or abiotic conditions and their influence on living organisms.
The pollen grains contain sperm which will fertilize the egg and create a seed to sprout the next generation of plants. The main male part is the stamen. It is divided into two parts: the anther and the filament. The anther produces the pollen grains that contain the sperm needed for fertilization.
<u>Answer</u>:
Femur diaphysis and epiphyseal ends is made up with cortical bone and contains bone narrow. It is in the middle tabular part and composed with compact bone and central marrow cavity is situated around it. It is round in shape and a long bone. It is the origin of the attachment of many muscles as well as ligament.
The femur is the longest bone which is present in our thigh and also call as thigh bone. The division of femur can be divided into shaft, proximal and distal. In some aspect it is the strongest bone of our body and it helps in any activities.
