Answer:
A trait that gives an organism a reproductive advantage in the current environment
Explanation:
- Adaptations are mutations that helps an organism, such as animals or plants to survive in its environment due to a reproductive advantage.
- Adaptations may be structural or behavioral adaptations. Structural adaptations are features or the physical part of an organism that boosts its survival. Behavioral adaptations on the other hand, are responses made by an organism to help it survive or reproduce.
Yes, no, no, yes. These answers of mine are correct because government/journals have evidence sites from other sources
<span>The death of bone tissue due to insufficient blood supply is called: osteonecrosis.
Osteo means bone and necrosis mean the death of cells. That mean osteonecrosis is the death of bone tissue. Bone tissue can be killed in the case of insufficient blood supply, infection or trauma.</span>
Well you can inclue in your paragraph many data related to quartz like: 1) Is the most abundant and most widely distributed mineral on the earths ground. 2) It is present in all the world. 3) Its very durable 4) Used in the glass making industry 5) You can use it also in the petroleum industry in the process known as hydraulic fracturing and 6) Used in a variety of gemstones.
Answer: Only options A, B, C and D are true statements
A) One sperm fuses with an egg while the other sperm fuses with the polar nuclei.
B) It results in the formation of a diploid embryo and triploid endosperm.
C) Both sperms involved in double fertilization form within the same pollen tube.
- The diploid nucleus resulting from the second fertilization undergoes meiosis to form the endosperm.
Explanation:
Double fertilization is a process that occurs in only flowering plants. It involves the following:
- A pollen grain produces TWO male gametes
- one male gamete fertilize the egg to form a zygote that is DIPLOID (with two basic sets of chromosomes)
- the second male gamete fuses with another cell named POLAR NUCLEI, to form endosperm (the food storing tissue) in the seed. The endosperm formed is TRIPLOID ( it has three sets of chromosomes), having undergone reductive division - meiosis
Thus, the options A, B, C and D are true statements
