Answer:
The correct answer is - he wanted to be sure before considering before the bird as a new type if it really represents new species.
Explanation:
Dr. Smith has found the bird that he considered as new species however Dr. Wilson said he will only be convinced if DR. smith could find several members of the same species. Dr. Wilson seems to be sure before considering the bird that Dr. smith found as the new species. It is because he wants to sure if it's not an unusual example of the pre-described species.
Thus, the correct answer is - he wanted to be sure before considering before the bird as a new type if it really represents new species.
B. luteal
C. gastrulation
D. follicular
Answer:
The asnwer is C. Gastrulation.
Explanation:
Gastrulation is one of the stages of early embryonic development through which the trilaminar germinative disk is formed, which is a structure with three differentiated embryonic layers that will give rise to all the organs and tissues of the embryo. Gastrulation occurs just after embryo segmentation and implantation, that is, when the embryo has already been divided into many cells, it has become a blastocyst and has managed to nest in the endometrium, beginning pregnancy.
Knowing this, it can be concluded that it is not related to the menstrual cycle.
I believe the correct answer is gastrulation.
The menstrual cycle is divided into the follicular phase, the menstrual phase, ovulation phase and the luteal phase. The Ovulation phase is a phase between the menstrual cycle just before menstruation starts. Gastrulation on the other hand is a phase in embryogenesis after fertilization has occurred.
This is a phase in between the menstrual cycle and is triggered by a hormone produced by the anterior pituitary gland and is called the Luteinizing hormone. The phase is when the egg has matured from the graafian follicle after it bursts. This egg will travel into the fallopian tube by the help of special structures called fimbriae hoping to be fertilized. If fertilized, the egg will attach to the uterus. If not, it is removed as menstrual blood during menstruation. In this stage, the basal body temperature of the lady increases and she will have more "feelings" for sexual intercourse.
It is triggered by the hormone Luteinizing Hormone (LH) that is released by the anterior pituitary gland. After the graafian follicle releases the ovum, it (graafian follicle) matures into the corpus luteum that produces copious amounts of the hormones progesterone and estrogen to prepare the uterus for implantation by thickening it and making the mucus of the cervix more thinner to allow passage of sperms. If the lady does not become pregnant, the corpus luteum will die and the uterine wall sheds in the menstrual phase.
This is the first phase and it starts on the first day the lady sees her period. It starts due to the anterior pituitary gland secreting the hormone follicle stimulating hormone (FSH) .The hormone will stimulate formation of ovarian follicles in the ovaries and only one matures and produces estrogen to inhibit all the other eggs from maturing and also thickening the uterus. It lasts for 14 days. The ovarian follicle matures into the graafian follicle that enters the ovulatory phase.
This is totally unrelated to the menstrual cycle and it is found in embryology after the egg has been fertilized during the menstrual cycle and matures into an embryo. In this stage of embryogenesis, there is formation of the gut of a developing embryo
Level: High School
Subject: Biology
Topic: Reproduction
Immune tolerance is the lack of capacity to increase the reaction to antigens. The tolerance can either be natural or “self” tolerance. On the other hand, licensing is a kind of protein that lets replication for cells. They usually happen with eukaryotic cells and they begin with the replication of DNA.
The structure of an organism or its part, directly influences its function, which is central to biological adaptation. Adaptation involves developing physical characteristics, which aid survival in specific environments. While analogous structures represent adaptation to similar environments, homologous structures indicate shared ancestry.
Structure and function are fundamentally related to adaptation in biology. Essentially, the shape or structure of an organism, or any of its body parts, directly relates to that part's function or purpose. This idea, called the structure-function relationship, is central to the concept of adaptation—the process by which organisms evolve physical characteristics that help them survive in their environment.
For example, consider the fins of whales and the wings of bats. Even though these animals differ significantly in many aspects, they both developed structures (fins and wings) that perform similar functions (swimming and flying), which are best suited to their specific environment. These analogous structures represent an adaptation to a common environmental condition, despite the lack of a close evolutionary relationship, and is known as convergent evolution.
On the other hand, homologous structures represent a shared ancestry. For instance, the grasping hands of humans and chimpanzees, which serve the same function, indicate a common ancestor. Despite their structural similarities, the ways these structures are used could vary, showcasing how different environmental conditions can drive variations in function and contribute to evolutionary divergence.
A prime example of the structure-function relationship—the hallmark of adaptation—is observed in the various beak shapes of finches. Different shapes serve different purposes or functions, permitting birds to make the best use of available food resources in their respective habitats.
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Answer: All of the above
Explanation:
The living component of the ecosystem consists of both living and non living components. The living components of the ecosystem consists of plants and animals.
The non-living components of ecosystem consists rocks, river, soil et cetera. The living components of the ecosystem needs to depend on the non living and living components.
The phosphorous, nitrogen and carbon cycle are important for the living components of the ecosystem.
Correct answer: Isostasy
Isostasy is the state of gravitational equilibrium between the mantle and the earth's crust. It tries to explain how different topographic heights exists on the earth surface.
It tries to balance all large portions of the earth's lithosphere. It controls the regional elevations of oceans and continents according to the density of rocks.