Answer:
mutualism
Explanation:
Mutualism is a type of symbiotic relationship which involves the interaction of two different species of organisms interacting together to benefit from each other. In mutualistic relationship, both organisms involved depend on each other for nutrition, protection, reproduction or survival.
Mutualistic relationship can be seen between plant pollinators and flowering plants. The Monarch butterfly as a plant pollinator, depends on the milk-weed plant for nectar, while it helps the milk-weed plant in cross-pollination. Both organisms benefit from mutualism.
They are valid because the dependent variable caused a change in the independent variable.
Answer: Option C
<u>Explanation:</u>
The validity of a student’s result is basically based on how the dependent variable caused a change in the independent variable. A dependent variable is one which a scientist produce a variable and finds means to explain it in a proper way. An independent variable is one that is formed to compliment the dependent variable.
When the independent variable increases it causes decrease or increase in dependent variable. A intermediate or intervening variable is found which helps explain about the changes happening between the Independent and interdependent variable.
Answer:
Rocks deteriorating the ocean floor
Explanation:
As rocks scrape past the ocean floor they chip away at it smoothing it (erosion) out but due to continental drift and magma rising and cooling it causes the new igneous rock forms on the ocean floor making it rough and rugged.
When thinking about this think about a pebble on the beach, what it is?
rounded due to erosion just as scientists thought the ocean floor would be.
The male gamete cell is produced in the process called spermatogenesis. The process of spermatogenesis can be broken up into several stages: spermatocytogenesis, spermatidogenesis I and II, spermiogenesis, spermiation.
• the seminiferous tubules- the first stage (spermatocytogenesis) refers to mitotic division of a diploid spermatogonium which produce two diploid intermediate cells called primary spermatocytes. Primary spermatocyte undergoes meiosis I to produce two haploid secondary spermatocytes (adluminal compartment of the seminiferous tubules ). In the phase of spermatidogenesis, haploid spermatids are formed from secondary spermatocytes (meiosis II). During spermiogenesis, the spermatids begin to form a tail and mature under the influence of the testosterone (become motile).
• Lumen-the mature spermatozoa (haploid male gamete) are released from the protective Sertoli cells of the testes into the lumen of the seminiferous tubule in a process called spermiation.
• the epididymis- The sperm migrate from of the lumen to the epididymis.
• vas deferens-muscular tube
• ampulla-place where the secretions from the seminal vesicle are added
• ejaculatory ducts
• the urethra.
Answer:
a) (62 +68)/545
b) The two genes are linked.
Explanation:
a) The recombination frequency is equal to:
%
b) It can be seen that red plants with single flower and yellow with double flower are recombinant, this means that their parental combinations are uneven. This is due to a cross that occurred between the two genes. From the obtained result it can be said that both genes are linked.